diff options
Diffstat (limited to 'drivers/target')
55 files changed, 489 insertions, 317 deletions
diff --git a/drivers/target/Makefile b/drivers/target/Makefile index e619c0266a79..45634747377e 100644 --- a/drivers/target/Makefile +++ b/drivers/target/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 target_core_mod-y := target_core_configfs.o \ target_core_device.o \ diff --git a/drivers/target/iscsi/Makefile b/drivers/target/iscsi/Makefile index 0f18295e05bc..8c9ae96b760d 100644 --- a/drivers/target/iscsi/Makefile +++ b/drivers/target/iscsi/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 iscsi_target_mod-y += iscsi_target_parameters.o \ iscsi_target_seq_pdu_list.o \ iscsi_target_auth.o \ diff --git a/drivers/target/iscsi/cxgbit/Makefile b/drivers/target/iscsi/cxgbit/Makefile index 4893ec29b6b3..d16aaae7ba2a 100644 --- a/drivers/target/iscsi/cxgbit/Makefile +++ b/drivers/target/iscsi/cxgbit/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 ccflags-y := -Idrivers/net/ethernet/chelsio/cxgb4 ccflags-y += -Idrivers/net/ethernet/chelsio/libcxgb ccflags-y += -Idrivers/target/iscsi 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 5001261f5d69..9eb10d34682c 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -372,6 +372,8 @@ struct iscsi_np *iscsit_add_np( init_completion(&np->np_restart_comp); INIT_LIST_HEAD(&np->np_list); + timer_setup(&np->np_login_timer, iscsi_handle_login_thread_timeout, 0); + ret = iscsi_target_setup_login_socket(np, sockaddr); if (ret != 0) { kfree(np); @@ -500,7 +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 @@ -521,7 +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; @@ -548,9 +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; @@ -595,7 +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; @@ -834,6 +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", @@ -864,7 +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); } @@ -1408,13 +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]; @@ -1460,9 +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); } @@ -1876,10 +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" @@ -1960,7 +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; @@ -1993,22 +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:" @@ -2099,12 +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)); @@ -2124,12 +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); @@ -2285,10 +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" @@ -3976,9 +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.h b/drivers/target/iscsi/iscsi_target.h index e0db2ceb0f87..42de1843aa40 100644 --- a/drivers/target/iscsi/iscsi_target.h +++ b/drivers/target/iscsi/iscsi_target.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_H #define ISCSI_TARGET_H diff --git a/drivers/target/iscsi/iscsi_target_auth.h b/drivers/target/iscsi/iscsi_target_auth.h index 1b91c13cc965..d5600ac30b53 100644 --- a/drivers/target/iscsi/iscsi_target_auth.h +++ b/drivers/target/iscsi/iscsi_target_auth.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ISCSI_CHAP_H_ #define _ISCSI_CHAP_H_ 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_datain_values.h b/drivers/target/iscsi/iscsi_target_datain_values.h index 16edeeeb7777..a420fbd37969 100644 --- a/drivers/target/iscsi/iscsi_target_datain_values.h +++ b/drivers/target/iscsi/iscsi_target_datain_values.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_DATAIN_VALUES_H #define ISCSI_TARGET_DATAIN_VALUES_H diff --git a/drivers/target/iscsi/iscsi_target_device.h b/drivers/target/iscsi/iscsi_target_device.h index 06dbff5cd520..ab2166f17785 100644 --- a/drivers/target/iscsi/iscsi_target_device.h +++ b/drivers/target/iscsi/iscsi_target_device.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_DEVICE_H #define ISCSI_TARGET_DEVICE_H diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c index 7fe2aa73cff6..718fe9a1b709 100644 --- a/drivers/target/iscsi/iscsi_target_erl0.c +++ b/drivers/target/iscsi/iscsi_target_erl0.c @@ -749,9 +749,9 @@ int iscsit_check_post_dataout( } } -static void iscsit_handle_time2retain_timeout(unsigned long data) +void iscsit_handle_time2retain_timeout(struct timer_list *t) { - struct iscsi_session *sess = (struct iscsi_session *) data; + struct iscsi_session *sess = from_timer(sess, t, time2retain_timer); struct iscsi_portal_group *tpg = sess->tpg; struct se_portal_group *se_tpg = &tpg->tpg_se_tpg; @@ -809,14 +809,10 @@ void iscsit_start_time2retain_handler(struct iscsi_session *sess) pr_debug("Starting Time2Retain timer for %u seconds on" " SID: %u\n", sess->sess_ops->DefaultTime2Retain, sess->sid); - init_timer(&sess->time2retain_timer); - sess->time2retain_timer.expires = - (get_jiffies_64() + sess->sess_ops->DefaultTime2Retain * HZ); - sess->time2retain_timer.data = (unsigned long)sess; - sess->time2retain_timer.function = iscsit_handle_time2retain_timeout; sess->time2retain_timer_flags &= ~ISCSI_TF_STOP; sess->time2retain_timer_flags |= ISCSI_TF_RUNNING; - add_timer(&sess->time2retain_timer); + mod_timer(&sess->time2retain_timer, + jiffies + sess->sess_ops->DefaultTime2Retain * HZ); } /* diff --git a/drivers/target/iscsi/iscsi_target_erl0.h b/drivers/target/iscsi/iscsi_target_erl0.h index 3822d9cd1230..883ebf6d36cf 100644 --- a/drivers/target/iscsi/iscsi_target_erl0.h +++ b/drivers/target/iscsi/iscsi_target_erl0.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_ERL0_H #define ISCSI_TARGET_ERL0_H @@ -11,6 +12,7 @@ extern void iscsit_set_dataout_sequence_values(struct iscsi_cmd *); extern int iscsit_check_pre_dataout(struct iscsi_cmd *, unsigned char *); extern int iscsit_check_post_dataout(struct iscsi_cmd *, unsigned char *, u8); extern void iscsit_start_time2retain_handler(struct iscsi_session *); +extern void iscsit_handle_time2retain_timeout(struct timer_list *t); extern int iscsit_stop_time2retain_timer(struct iscsi_session *); extern void iscsit_connection_reinstatement_rcfr(struct iscsi_conn *); extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int); diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c index fe9b7f1e44ac..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; @@ -1148,11 +1147,11 @@ static int iscsit_set_dataout_timeout_values( /* * NOTE: Called from interrupt (timer) context. */ -static void iscsit_handle_dataout_timeout(unsigned long data) +void iscsit_handle_dataout_timeout(struct timer_list *t) { u32 pdu_length = 0, pdu_offset = 0; u32 r2t_length = 0, r2t_offset = 0; - struct iscsi_cmd *cmd = (struct iscsi_cmd *) data; + struct iscsi_cmd *cmd = from_timer(cmd, t, dataout_timer); struct iscsi_conn *conn = cmd->conn; struct iscsi_session *sess = NULL; struct iscsi_node_attrib *na; @@ -1264,13 +1263,9 @@ void iscsit_start_dataout_timer( pr_debug("Starting DataOUT timer for ITT: 0x%08x on" " CID: %hu.\n", cmd->init_task_tag, conn->cid); - init_timer(&cmd->dataout_timer); - cmd->dataout_timer.expires = (get_jiffies_64() + na->dataout_timeout * HZ); - cmd->dataout_timer.data = (unsigned long)cmd; - cmd->dataout_timer.function = iscsit_handle_dataout_timeout; cmd->dataout_timer_flags &= ~ISCSI_TF_STOP; cmd->dataout_timer_flags |= ISCSI_TF_RUNNING; - add_timer(&cmd->dataout_timer); + mod_timer(&cmd->dataout_timer, jiffies + na->dataout_timeout * HZ); } void iscsit_stop_dataout_timer(struct iscsi_cmd *cmd) diff --git a/drivers/target/iscsi/iscsi_target_erl1.h b/drivers/target/iscsi/iscsi_target_erl1.h index 54d36bd25bea..1f6973f87fea 100644 --- a/drivers/target/iscsi/iscsi_target_erl1.h +++ b/drivers/target/iscsi/iscsi_target_erl1.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_ERL1_H #define ISCSI_TARGET_ERL1_H @@ -29,6 +30,7 @@ extern int iscsit_execute_ooo_cmdsns(struct iscsi_session *); extern int iscsit_execute_cmd(struct iscsi_cmd *, int); extern int iscsit_handle_ooo_cmdsn(struct iscsi_session *, struct iscsi_cmd *, u32); extern void iscsit_remove_ooo_cmdsn(struct iscsi_session *, struct iscsi_ooo_cmdsn *); +extern void iscsit_handle_dataout_timeout(struct timer_list *t); extern void iscsit_mod_dataout_timer(struct iscsi_cmd *); extern void iscsit_start_dataout_timer(struct iscsi_cmd *, struct iscsi_conn *); extern void iscsit_stop_dataout_timer(struct iscsi_cmd *); diff --git a/drivers/target/iscsi/iscsi_target_erl2.h b/drivers/target/iscsi/iscsi_target_erl2.h index 634d01e13652..93e180d68d07 100644 --- a/drivers/target/iscsi/iscsi_target_erl2.h +++ b/drivers/target/iscsi/iscsi_target_erl2.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_ERL2_H #define ISCSI_TARGET_ERL2_H diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index dc13afbd4c88..64c5a57b92e4 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -333,6 +333,9 @@ static int iscsi_login_zero_tsih_s1( spin_lock_init(&sess->session_usage_lock); spin_lock_init(&sess->ttt_lock); + timer_setup(&sess->time2retain_timer, + iscsit_handle_time2retain_timeout, 0); + idr_preload(GFP_KERNEL); spin_lock_bh(&sess_idr_lock); ret = idr_alloc(&sess_idr, NULL, 0, 0, GFP_NOWAIT); @@ -839,9 +842,9 @@ void iscsi_post_login_handler( iscsit_dec_conn_usage_count(conn); } -static void iscsi_handle_login_thread_timeout(unsigned long data) +void iscsi_handle_login_thread_timeout(struct timer_list *t) { - struct iscsi_np *np = (struct iscsi_np *) data; + struct iscsi_np *np = from_timer(np, t, np_login_timer); spin_lock_bh(&np->np_thread_lock); pr_err("iSCSI Login timeout on Network Portal %pISpc\n", @@ -866,13 +869,9 @@ static void iscsi_start_login_thread_timer(struct iscsi_np *np) * point we do not have access to ISCSI_TPG_ATTRIB(tpg)->login_timeout */ spin_lock_bh(&np->np_thread_lock); - init_timer(&np->np_login_timer); - np->np_login_timer.expires = (get_jiffies_64() + TA_LOGIN_TIMEOUT * HZ); - np->np_login_timer.data = (unsigned long)np; - np->np_login_timer.function = iscsi_handle_login_thread_timeout; np->np_login_timer_flags &= ~ISCSI_TF_STOP; np->np_login_timer_flags |= ISCSI_TF_RUNNING; - add_timer(&np->np_login_timer); + mod_timer(&np->np_login_timer, jiffies + TA_LOGIN_TIMEOUT * HZ); pr_debug("Added timeout timer to iSCSI login request for" " %u seconds.\n", TA_LOGIN_TIMEOUT); @@ -1266,6 +1265,10 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) pr_debug("Moving to TARG_CONN_STATE_FREE.\n"); conn->conn_state = TARG_CONN_STATE_FREE; + timer_setup(&conn->nopin_response_timer, + iscsit_handle_nopin_response_timeout, 0); + timer_setup(&conn->nopin_timer, iscsit_handle_nopin_timeout, 0); + if (iscsit_conn_set_transport(conn, np->np_transport) < 0) { kfree(conn); return 1; diff --git a/drivers/target/iscsi/iscsi_target_login.h b/drivers/target/iscsi/iscsi_target_login.h index 0e1fd6cedd54..74ac3abc44a0 100644 --- a/drivers/target/iscsi/iscsi_target_login.h +++ b/drivers/target/iscsi/iscsi_target_login.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_LOGIN_H #define ISCSI_TARGET_LOGIN_H @@ -24,5 +25,6 @@ extern void iscsi_post_login_handler(struct iscsi_np *, struct iscsi_conn *, u8) extern void iscsi_target_login_sess_out(struct iscsi_conn *, struct iscsi_np *, bool, bool); extern int iscsi_target_login_thread(void *); +extern void iscsi_handle_login_thread_timeout(struct timer_list *t); #endif /*** ISCSI_TARGET_LOGIN_H ***/ diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c index 7a6751fecd32..b686e2ce9c0e 100644 --- a/drivers/target/iscsi/iscsi_target_nego.c +++ b/drivers/target/iscsi/iscsi_target_nego.c @@ -559,9 +559,15 @@ static void iscsi_target_login_drop(struct iscsi_conn *conn, struct iscsi_login iscsi_target_login_sess_out(conn, np, zero_tsih, true); } -static void iscsi_target_login_timeout(unsigned long data) +struct conn_timeout { + struct timer_list timer; + struct iscsi_conn *conn; +}; + +static void iscsi_target_login_timeout(struct timer_list *t) { - struct iscsi_conn *conn = (struct iscsi_conn *)data; + struct conn_timeout *timeout = from_timer(timeout, t, timer); + struct iscsi_conn *conn = timeout->conn; pr_debug("Entering iscsi_target_login_timeout >>>>>>>>>>>>>>>>>>>\n"); @@ -580,7 +586,7 @@ static void iscsi_target_do_login_rx(struct work_struct *work) struct iscsi_np *np = login->np; struct iscsi_portal_group *tpg = conn->tpg; struct iscsi_tpg_np *tpg_np = conn->tpg_np; - struct timer_list login_timer; + struct conn_timeout timeout; int rc, zero_tsih = login->zero_tsih; bool state; @@ -618,15 +624,14 @@ static void iscsi_target_do_login_rx(struct work_struct *work) conn->login_kworker = current; allow_signal(SIGINT); - init_timer(&login_timer); - login_timer.expires = (get_jiffies_64() + TA_LOGIN_TIMEOUT * HZ); - login_timer.data = (unsigned long)conn; - login_timer.function = iscsi_target_login_timeout; - add_timer(&login_timer); - pr_debug("Starting login_timer for %s/%d\n", current->comm, current->pid); + timeout.conn = conn; + timer_setup_on_stack(&timeout.timer, iscsi_target_login_timeout, 0); + mod_timer(&timeout.timer, jiffies + TA_LOGIN_TIMEOUT * HZ); + pr_debug("Starting login timer for %s/%d\n", current->comm, current->pid); rc = conn->conn_transport->iscsit_get_login_rx(conn, login); - del_timer_sync(&login_timer); + del_timer_sync(&timeout.timer); + destroy_timer_on_stack(&timeout.timer); flush_signals(current); conn->login_kworker = NULL; diff --git a/drivers/target/iscsi/iscsi_target_nego.h b/drivers/target/iscsi/iscsi_target_nego.h index 53438bfca4c6..835e1b769b3f 100644 --- a/drivers/target/iscsi/iscsi_target_nego.h +++ b/drivers/target/iscsi/iscsi_target_nego.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_NEGO_H #define ISCSI_TARGET_NEGO_H diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.h b/drivers/target/iscsi/iscsi_target_nodeattrib.h index 79cdf06ade48..ce074cb54579 100644 --- a/drivers/target/iscsi/iscsi_target_nodeattrib.h +++ b/drivers/target/iscsi/iscsi_target_nodeattrib.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_NODEATTRIB_H #define ISCSI_TARGET_NODEATTRIB_H 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_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h index c47b73f57528..daf47f38e081 100644 --- a/drivers/target/iscsi/iscsi_target_parameters.h +++ b/drivers/target/iscsi/iscsi_target_parameters.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_PARAMETERS_H #define ISCSI_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 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_seq_pdu_list.h b/drivers/target/iscsi/iscsi_target_seq_pdu_list.h index be1234362271..5a0907027973 100644 --- a/drivers/target/iscsi/iscsi_target_seq_pdu_list.h +++ b/drivers/target/iscsi/iscsi_target_seq_pdu_list.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_SEQ_AND_PDU_LIST_H #define ISCSI_SEQ_AND_PDU_LIST_H diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c index 411cb266a47d..df0a39811dc2 100644 --- a/drivers/target/iscsi/iscsi_target_stat.c +++ b/drivers/target/iscsi/iscsi_target_stat.c @@ -187,7 +187,7 @@ static struct configfs_attribute *iscsi_stat_instance_attrs[] = { NULL, }; -struct config_item_type iscsi_stat_instance_cit = { +const struct config_item_type iscsi_stat_instance_cit = { .ct_attrs = iscsi_stat_instance_attrs, .ct_owner = THIS_MODULE, }; @@ -249,7 +249,7 @@ static struct configfs_attribute *iscsi_stat_sess_err_attrs[] = { NULL, }; -struct config_item_type iscsi_stat_sess_err_cit = { +const struct config_item_type iscsi_stat_sess_err_cit = { .ct_attrs = iscsi_stat_sess_err_attrs, .ct_owner = THIS_MODULE, }; @@ -390,7 +390,7 @@ static struct configfs_attribute *iscsi_stat_tgt_attr_attrs[] = { NULL, }; -struct config_item_type iscsi_stat_tgt_attr_cit = { +const struct config_item_type iscsi_stat_tgt_attr_cit = { .ct_attrs = iscsi_stat_tgt_attr_attrs, .ct_owner = THIS_MODULE, }; @@ -522,7 +522,7 @@ static struct configfs_attribute *iscsi_stat_login_stats_attrs[] = { NULL, }; -struct config_item_type iscsi_stat_login_cit = { +const struct config_item_type iscsi_stat_login_cit = { .ct_attrs = iscsi_stat_login_stats_attrs, .ct_owner = THIS_MODULE, }; @@ -579,7 +579,7 @@ static struct configfs_attribute *iscsi_stat_logout_stats_attrs[] = { NULL, }; -struct config_item_type iscsi_stat_logout_cit = { +const struct config_item_type iscsi_stat_logout_cit = { .ct_attrs = iscsi_stat_logout_stats_attrs, .ct_owner = THIS_MODULE, }; @@ -801,7 +801,7 @@ static struct configfs_attribute *iscsi_stat_sess_stats_attrs[] = { NULL, }; -struct config_item_type iscsi_stat_sess_cit = { +const struct config_item_type iscsi_stat_sess_cit = { .ct_attrs = iscsi_stat_sess_stats_attrs, .ct_owner = THIS_MODULE, }; diff --git a/drivers/target/iscsi/iscsi_target_tmr.h b/drivers/target/iscsi/iscsi_target_tmr.h index 64cc5c07e47c..301f0936bd8e 100644 --- a/drivers/target/iscsi/iscsi_target_tmr.h +++ b/drivers/target/iscsi/iscsi_target_tmr.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_TMR_H #define ISCSI_TARGET_TMR_H 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_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h index 59fd3cabe89d..88576f5d0ca4 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.h +++ b/drivers/target/iscsi/iscsi_target_tpg.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_TPG_H #define ISCSI_TARGET_TPG_H diff --git a/drivers/target/iscsi/iscsi_target_transport.c b/drivers/target/iscsi/iscsi_target_transport.c index c4eb141c6435..036940518bfe 100644 --- a/drivers/target/iscsi/iscsi_target_transport.c +++ b/drivers/target/iscsi/iscsi_target_transport.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/spinlock.h> #include <linux/list.h> #include <linux/module.h> diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index 1e36f83b5961..4435bf374d2d 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -176,6 +176,7 @@ struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *conn, int state) spin_lock_init(&cmd->istate_lock); spin_lock_init(&cmd->error_lock); spin_lock_init(&cmd->r2t_lock); + timer_setup(&cmd->dataout_timer, iscsit_handle_dataout_timeout, 0); return cmd; } @@ -694,6 +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 @@ -716,6 +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); @@ -880,9 +885,9 @@ static int iscsit_add_nopin(struct iscsi_conn *conn, int want_response) return 0; } -static void iscsit_handle_nopin_response_timeout(unsigned long data) +void iscsit_handle_nopin_response_timeout(struct timer_list *t) { - struct iscsi_conn *conn = (struct iscsi_conn *) data; + struct iscsi_conn *conn = from_timer(conn, t, nopin_response_timer); iscsit_inc_conn_usage_count(conn); @@ -949,14 +954,10 @@ void iscsit_start_nopin_response_timer(struct iscsi_conn *conn) return; } - init_timer(&conn->nopin_response_timer); - conn->nopin_response_timer.expires = - (get_jiffies_64() + na->nopin_response_timeout * HZ); - conn->nopin_response_timer.data = (unsigned long)conn; - conn->nopin_response_timer.function = iscsit_handle_nopin_response_timeout; conn->nopin_response_timer_flags &= ~ISCSI_TF_STOP; conn->nopin_response_timer_flags |= ISCSI_TF_RUNNING; - add_timer(&conn->nopin_response_timer); + mod_timer(&conn->nopin_response_timer, + jiffies + na->nopin_response_timeout * HZ); pr_debug("Started NOPIN Response Timer on CID: %d to %u" " seconds\n", conn->cid, na->nopin_response_timeout); @@ -980,9 +981,9 @@ void iscsit_stop_nopin_response_timer(struct iscsi_conn *conn) spin_unlock_bh(&conn->nopin_timer_lock); } -static void iscsit_handle_nopin_timeout(unsigned long data) +void iscsit_handle_nopin_timeout(struct timer_list *t) { - struct iscsi_conn *conn = (struct iscsi_conn *) data; + struct iscsi_conn *conn = from_timer(conn, t, nopin_timer); iscsit_inc_conn_usage_count(conn); @@ -1015,13 +1016,9 @@ void __iscsit_start_nopin_timer(struct iscsi_conn *conn) if (conn->nopin_timer_flags & ISCSI_TF_RUNNING) return; - init_timer(&conn->nopin_timer); - conn->nopin_timer.expires = (get_jiffies_64() + na->nopin_timeout * HZ); - conn->nopin_timer.data = (unsigned long)conn; - conn->nopin_timer.function = iscsit_handle_nopin_timeout; conn->nopin_timer_flags &= ~ISCSI_TF_STOP; conn->nopin_timer_flags |= ISCSI_TF_RUNNING; - add_timer(&conn->nopin_timer); + mod_timer(&conn->nopin_timer, jiffies + na->nopin_timeout * HZ); pr_debug("Started NOPIN Timer on CID: %d at %u second" " interval\n", conn->cid, na->nopin_timeout); @@ -1043,13 +1040,9 @@ void iscsit_start_nopin_timer(struct iscsi_conn *conn) return; } - init_timer(&conn->nopin_timer); - conn->nopin_timer.expires = (get_jiffies_64() + na->nopin_timeout * HZ); - conn->nopin_timer.data = (unsigned long)conn; - conn->nopin_timer.function = iscsit_handle_nopin_timeout; conn->nopin_timer_flags &= ~ISCSI_TF_STOP; conn->nopin_timer_flags |= ISCSI_TF_RUNNING; - add_timer(&conn->nopin_timer); + mod_timer(&conn->nopin_timer, jiffies + na->nopin_timeout * HZ); pr_debug("Started NOPIN Timer on CID: %d at %u second" " interval\n", conn->cid, na->nopin_timeout); diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h index 425160565d0c..d66dfc212624 100644 --- a/drivers/target/iscsi/iscsi_target_util.h +++ b/drivers/target/iscsi/iscsi_target_util.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ISCSI_TARGET_UTIL_H #define ISCSI_TARGET_UTIL_H @@ -47,9 +48,11 @@ extern struct iscsi_conn *iscsit_get_conn_from_cid_rcfr(struct iscsi_session *, extern void iscsit_check_conn_usage_count(struct iscsi_conn *); extern void iscsit_dec_conn_usage_count(struct iscsi_conn *); extern void iscsit_inc_conn_usage_count(struct iscsi_conn *); +extern void iscsit_handle_nopin_response_timeout(struct timer_list *t); extern void iscsit_mod_nopin_response_timer(struct iscsi_conn *); extern void iscsit_start_nopin_response_timer(struct iscsi_conn *); extern void iscsit_stop_nopin_response_timer(struct iscsi_conn *); +extern void iscsit_handle_nopin_timeout(struct timer_list *t); extern void __iscsit_start_nopin_timer(struct iscsi_conn *); extern void iscsit_start_nopin_timer(struct iscsi_conn *); extern void iscsit_stop_nopin_timer(struct iscsi_conn *); diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h index 3acc43c05117..d3110909a213 100644 --- a/drivers/target/loopback/tcm_loop.h +++ b/drivers/target/loopback/tcm_loop.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <linux/types.h> #include <linux/device.h> #include <target/target_core_base.h> /* struct se_cmd */ diff --git a/drivers/target/sbp/sbp_target.h b/drivers/target/sbp/sbp_target.h index 73bcb1208832..1d101ac86527 100644 --- a/drivers/target/sbp/sbp_target.h +++ b/drivers/target/sbp/sbp_target.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _SBP_BASE_H #define _SBP_BASE_H diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index 928127642574..e46ca968009c 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -918,7 +918,7 @@ static int core_alua_update_tpg_primary_metadata( { unsigned char *md_buf; struct t10_wwn *wwn = &tg_pt_gp->tg_pt_gp_dev->t10_wwn; - char path[ALUA_METADATA_PATH_LEN]; + char *path; int len, rc; md_buf = kzalloc(ALUA_MD_BUF_LEN, GFP_KERNEL); @@ -927,8 +927,6 @@ static int core_alua_update_tpg_primary_metadata( return -ENOMEM; } - memset(path, 0, ALUA_METADATA_PATH_LEN); - len = snprintf(md_buf, ALUA_MD_BUF_LEN, "tg_pt_gp_id=%hu\n" "alua_access_state=0x%02x\n" @@ -937,11 +935,14 @@ static int core_alua_update_tpg_primary_metadata( tg_pt_gp->tg_pt_gp_alua_access_state, tg_pt_gp->tg_pt_gp_alua_access_status); - snprintf(path, ALUA_METADATA_PATH_LEN, - "%s/alua/tpgs_%s/%s", db_root, &wwn->unit_serial[0], - config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item)); - - rc = core_alua_write_tpg_metadata(path, md_buf, len); + rc = -ENOMEM; + path = kasprintf(GFP_KERNEL, "%s/alua/tpgs_%s/%s", db_root, + &wwn->unit_serial[0], + config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item)); + if (path) { + rc = core_alua_write_tpg_metadata(path, md_buf, len); + kfree(path); + } kfree(md_buf); return rc; } @@ -1209,7 +1210,7 @@ static int core_alua_update_tpg_secondary_metadata(struct se_lun *lun) { struct se_portal_group *se_tpg = lun->lun_tpg; unsigned char *md_buf; - char path[ALUA_METADATA_PATH_LEN], wwn[ALUA_SECONDARY_METADATA_WWN_LEN]; + char *path; int len, rc; mutex_lock(&lun->lun_tg_pt_md_mutex); @@ -1221,28 +1222,32 @@ static int core_alua_update_tpg_secondary_metadata(struct se_lun *lun) goto out_unlock; } - memset(path, 0, ALUA_METADATA_PATH_LEN); - memset(wwn, 0, ALUA_SECONDARY_METADATA_WWN_LEN); - - len = snprintf(wwn, ALUA_SECONDARY_METADATA_WWN_LEN, "%s", - se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg)); - - if (se_tpg->se_tpg_tfo->tpg_get_tag != NULL) - snprintf(wwn+len, ALUA_SECONDARY_METADATA_WWN_LEN-len, "+%hu", - se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); - len = snprintf(md_buf, ALUA_MD_BUF_LEN, "alua_tg_pt_offline=%d\n" "alua_tg_pt_status=0x%02x\n", atomic_read(&lun->lun_tg_pt_secondary_offline), lun->lun_tg_pt_secondary_stat); - snprintf(path, ALUA_METADATA_PATH_LEN, "%s/alua/%s/%s/lun_%llu", - db_root, se_tpg->se_tpg_tfo->get_fabric_name(), wwn, - lun->unpacked_lun); + if (se_tpg->se_tpg_tfo->tpg_get_tag != NULL) { + path = kasprintf(GFP_KERNEL, "%s/alua/%s/%s+%hu/lun_%llu", + db_root, se_tpg->se_tpg_tfo->get_fabric_name(), + se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg), + se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg), + lun->unpacked_lun); + } else { + path = kasprintf(GFP_KERNEL, "%s/alua/%s/%s/lun_%llu", + db_root, se_tpg->se_tpg_tfo->get_fabric_name(), + se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg), + lun->unpacked_lun); + } + if (!path) { + rc = -ENOMEM; + goto out_free; + } rc = core_alua_write_tpg_metadata(path, md_buf, len); + kfree(path); +out_free: kfree(md_buf); - out_unlock: mutex_unlock(&lun->lun_tg_pt_md_mutex); return rc; diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h index c69c11baf07f..fc9637cce825 100644 --- a/drivers/target/target_core_alua.h +++ b/drivers/target/target_core_alua.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef TARGET_CORE_ALUA_H #define TARGET_CORE_ALUA_H @@ -71,15 +72,6 @@ */ #define ALUA_DEFAULT_IMPLICIT_TRANS_SECS 0 #define ALUA_MAX_IMPLICIT_TRANS_SECS 255 -/* - * Used by core_alua_update_tpg_primary_metadata() and - * core_alua_update_tpg_secondary_metadata() - */ -#define ALUA_METADATA_PATH_LEN 512 -/* - * Used by core_alua_update_tpg_secondary_metadata() - */ -#define ALUA_SECONDARY_METADATA_WWN_LEN 256 /* Used by core_alua_update_tpg_(primary,secondary)_metadata */ #define ALUA_MD_BUF_LEN 1024 diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 7e87d952bb7a..72b1cd1bf9d9 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -307,7 +307,7 @@ static struct configfs_attribute *target_core_fabric_item_attrs[] = { /* * Provides Fabrics Groups and Item Attributes for /sys/kernel/config/target/ */ -static struct config_item_type target_core_fabrics_item = { +static const struct config_item_type target_core_fabrics_item = { .ct_group_ops = &target_core_fabric_group_ops, .ct_attrs = target_core_fabric_item_attrs, .ct_owner = THIS_MODULE, @@ -1611,12 +1611,12 @@ static match_table_t tokens = { {Opt_res_type, "res_type=%d"}, {Opt_res_scope, "res_scope=%d"}, {Opt_res_all_tg_pt, "res_all_tg_pt=%d"}, - {Opt_mapped_lun, "mapped_lun=%lld"}, + {Opt_mapped_lun, "mapped_lun=%u"}, {Opt_target_fabric, "target_fabric=%s"}, {Opt_target_node, "target_node=%s"}, {Opt_tpgt, "tpgt=%d"}, {Opt_port_rtpi, "port_rtpi=%d"}, - {Opt_target_lun, "target_lun=%lld"}, + {Opt_target_lun, "target_lun=%u"}, {Opt_err, NULL} }; @@ -1693,7 +1693,7 @@ static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item, } break; case Opt_sa_res_key: - ret = kstrtoull(args->from, 0, &tmp_ll); + ret = match_u64(args, &tmp_ll); if (ret < 0) { pr_err("kstrtoull() failed for sa_res_key=\n"); goto out; @@ -1727,10 +1727,10 @@ static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item, all_tg_pt = (int)arg; break; case Opt_mapped_lun: - ret = match_int(args, &arg); + ret = match_u64(args, &tmp_ll); if (ret) goto out; - mapped_lun = (u64)arg; + mapped_lun = (u64)tmp_ll; break; /* * PR APTPL Metadata for Target Port @@ -1768,10 +1768,10 @@ static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item, goto out; break; case Opt_target_lun: - ret = match_int(args, &arg); + ret = match_u64(args, &tmp_ll); if (ret) goto out; - target_lun = (u64)arg; + target_lun = (u64)tmp_ll; break; default: break; @@ -2376,7 +2376,7 @@ static struct configfs_item_operations target_core_alua_lu_gp_ops = { .release = target_core_alua_lu_gp_release, }; -static struct config_item_type target_core_alua_lu_gp_cit = { +static const struct config_item_type target_core_alua_lu_gp_cit = { .ct_item_ops = &target_core_alua_lu_gp_ops, .ct_attrs = target_core_alua_lu_gp_attrs, .ct_owner = THIS_MODULE, @@ -2434,7 +2434,7 @@ static struct configfs_group_operations target_core_alua_lu_gps_group_ops = { .drop_item = &target_core_alua_drop_lu_gp, }; -static struct config_item_type target_core_alua_lu_gps_cit = { +static const struct config_item_type target_core_alua_lu_gps_cit = { .ct_item_ops = NULL, .ct_group_ops = &target_core_alua_lu_gps_group_ops, .ct_owner = THIS_MODULE, @@ -2813,7 +2813,7 @@ static struct configfs_item_operations target_core_alua_tg_pt_gp_ops = { .release = target_core_alua_tg_pt_gp_release, }; -static struct config_item_type target_core_alua_tg_pt_gp_cit = { +static const struct config_item_type target_core_alua_tg_pt_gp_cit = { .ct_item_ops = &target_core_alua_tg_pt_gp_ops, .ct_attrs = target_core_alua_tg_pt_gp_attrs, .ct_owner = THIS_MODULE, @@ -2884,7 +2884,7 @@ TB_CIT_SETUP(dev_alua_tg_pt_gps, NULL, &target_core_alua_tg_pt_gps_group_ops, NU * core/alua/lu_gps and core/alua/tg_pt_gps that are attached to * target_core_alua_cit in target_core_init_configfs() below. */ -static struct config_item_type target_core_alua_cit = { +static const struct config_item_type target_core_alua_cit = { .ct_item_ops = NULL, .ct_attrs = NULL, .ct_owner = THIS_MODULE, @@ -3105,7 +3105,7 @@ static struct configfs_item_operations target_core_hba_item_ops = { .release = target_core_hba_release, }; -static struct config_item_type target_core_hba_cit = { +static const struct config_item_type target_core_hba_cit = { .ct_item_ops = &target_core_hba_item_ops, .ct_group_ops = &target_core_hba_group_ops, .ct_attrs = target_core_hba_attrs, @@ -3188,7 +3188,7 @@ static struct configfs_group_operations target_core_group_ops = { .drop_item = target_core_call_delhbafromtarget, }; -static struct config_item_type target_core_cit = { +static const struct config_item_type target_core_cit = { .ct_item_ops = NULL, .ct_group_ops = &target_core_group_ops, .ct_attrs = NULL, diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index e9e917cc6441..e1416b007aa4 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -623,8 +623,6 @@ static struct configfs_attribute *target_fabric_port_attrs[] = { NULL, }; -extern struct configfs_item_operations target_core_dev_item_ops; - static int target_fabric_port_link( struct config_item *lun_ci, struct config_item *se_dev_ci) diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index c629817a8854..9b2c0c773022 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -482,6 +482,10 @@ fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) struct inode *inode = file->f_mapping->host; int ret; + if (!nolb) { + return 0; + } + if (cmd->se_dev->dev_attrib.pi_prot_type) { ret = fd_do_prot_unmap(cmd, lba, nolb); if (ret) diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h index 526595a072de..53be5ffd3261 100644 --- a/drivers/target/target_core_file.h +++ b/drivers/target/target_core_file.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef TARGET_CORE_FILE_H #define TARGET_CORE_FILE_H diff --git a/drivers/target/target_core_iblock.h b/drivers/target/target_core_iblock.h index f2a5797217d4..b4aeb2584ad4 100644 --- a/drivers/target/target_core_iblock.h +++ b/drivers/target/target_core_iblock.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef TARGET_CORE_IBLOCK_H #define TARGET_CORE_IBLOCK_H diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h index f30e8ac13386..9384d19a7326 100644 --- a/drivers/target/target_core_internal.h +++ b/drivers/target/target_core_internal.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef TARGET_CORE_INTERNAL_H #define TARGET_CORE_INTERNAL_H @@ -88,6 +89,7 @@ int target_for_each_device(int (*fn)(struct se_device *dev, void *data), void *data); /* target_core_configfs.c */ +extern struct configfs_item_operations target_core_dev_item_ops; void target_setup_backend_cits(struct target_backend *); /* target_core_fabric_configfs.c */ diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index dd2cd8048582..b024613f9217 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -58,8 +58,10 @@ void core_pr_dump_initiator_port( char *buf, u32 size) { - if (!pr_reg->isid_present_at_reg) + if (!pr_reg->isid_present_at_reg) { buf[0] = '\0'; + return; + } snprintf(buf, size, ",i,0x%s", pr_reg->pr_reg_isid); } @@ -351,6 +353,7 @@ static int core_scsi3_pr_seq_non_holder(struct se_cmd *cmd, u32 pr_reg_type, break; case PR_TYPE_WRITE_EXCLUSIVE_REGONLY: we = 1; + /* fall through */ case PR_TYPE_EXCLUSIVE_ACCESS_REGONLY: /* * Some commands are only allowed for registered I_T Nexuses. @@ -359,6 +362,7 @@ static int core_scsi3_pr_seq_non_holder(struct se_cmd *cmd, u32 pr_reg_type, break; case PR_TYPE_WRITE_EXCLUSIVE_ALLREG: we = 1; + /* fall through */ case PR_TYPE_EXCLUSIVE_ACCESS_ALLREG: /* * Each registered I_T Nexus is a reservation holder. @@ -1521,7 +1525,7 @@ core_scsi3_decode_spec_i_port( tidh_new = kzalloc(sizeof(struct pr_transport_id_holder), GFP_KERNEL); if (!tidh_new) { pr_err("Unable to allocate tidh_new\n"); - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + return TCM_INSUFFICIENT_REGISTRATION_RESOURCES; } INIT_LIST_HEAD(&tidh_new->dest_list); tidh_new->dest_tpg = tpg; @@ -1533,7 +1537,7 @@ core_scsi3_decode_spec_i_port( sa_res_key, all_tg_pt, aptpl); if (!local_pr_reg) { kfree(tidh_new); - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + return TCM_INSUFFICIENT_REGISTRATION_RESOURCES; } tidh_new->dest_pr_reg = local_pr_reg; /* @@ -1553,7 +1557,7 @@ core_scsi3_decode_spec_i_port( buf = transport_kmap_data_sg(cmd); if (!buf) { - ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + ret = TCM_INSUFFICIENT_REGISTRATION_RESOURCES; goto out; } @@ -1767,7 +1771,7 @@ core_scsi3_decode_spec_i_port( core_scsi3_nodeacl_undepend_item(dest_node_acl); core_scsi3_tpg_undepend_item(dest_tpg); kfree(tidh_new); - ret = TCM_INVALID_PARAMETER_LIST; + ret = TCM_INSUFFICIENT_REGISTRATION_RESOURCES; goto out_unmap; } tidh_new->dest_pr_reg = dest_pr_reg; @@ -1971,24 +1975,21 @@ static int __core_scsi3_write_aptpl_to_file( struct t10_wwn *wwn = &dev->t10_wwn; struct file *file; int flags = O_RDWR | O_CREAT | O_TRUNC; - char path[512]; + char *path; u32 pr_aptpl_buf_len; int ret; loff_t pos = 0; - memset(path, 0, 512); - - if (strlen(&wwn->unit_serial[0]) >= 512) { - pr_err("WWN value for struct se_device does not fit" - " into path buffer\n"); - return -EMSGSIZE; - } + path = kasprintf(GFP_KERNEL, "%s/pr/aptpl_%s", db_root, + &wwn->unit_serial[0]); + if (!path) + return -ENOMEM; - snprintf(path, 512, "%s/pr/aptpl_%s", db_root, &wwn->unit_serial[0]); file = filp_open(path, flags, 0600); if (IS_ERR(file)) { pr_err("filp_open(%s) for APTPL metadata" " failed\n", path); + kfree(path); return PTR_ERR(file); } @@ -1999,6 +2000,7 @@ static int __core_scsi3_write_aptpl_to_file( if (ret < 0) pr_debug("Error writing APTPL metadata file: %s\n", path); fput(file); + kfree(path); return (ret < 0) ? -EIO : 0; } @@ -2103,7 +2105,7 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, register_type, 0)) { pr_err("Unable to allocate" " struct t10_pr_registration\n"); - return TCM_INVALID_PARAMETER_LIST; + return TCM_INSUFFICIENT_REGISTRATION_RESOURCES; } } else { /* @@ -3215,7 +3217,7 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key, */ buf = transport_kmap_data_sg(cmd); if (!buf) { - ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + ret = TCM_INSUFFICIENT_REGISTRATION_RESOURCES; goto out_put_pr_reg; } @@ -3267,7 +3269,7 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key, buf = transport_kmap_data_sg(cmd); if (!buf) { - ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + ret = TCM_INSUFFICIENT_REGISTRATION_RESOURCES; goto out_put_pr_reg; } proto_ident = (buf[24] & 0x0f); @@ -3466,7 +3468,7 @@ after_iport_check: if (core_scsi3_alloc_registration(cmd->se_dev, dest_node_acl, dest_lun, dest_se_deve, dest_se_deve->mapped_lun, iport_ptr, sa_res_key, 0, aptpl, 2, 1)) { - ret = TCM_INVALID_PARAMETER_LIST; + ret = TCM_INSUFFICIENT_REGISTRATION_RESOURCES; goto out; } spin_lock(&dev->dev_reservation_lock); @@ -3528,8 +3530,6 @@ after_iport_check: core_scsi3_update_and_write_aptpl(cmd->se_dev, aptpl); - transport_kunmap_data_sg(cmd); - core_scsi3_put_pr_reg(dest_pr_reg); return 0; out: @@ -4011,6 +4011,7 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd) * Set the ADDITIONAL DESCRIPTOR LENGTH */ put_unaligned_be32(desc_len, &buf[off]); + off += 4; /* * Size of full desctipor header minus TransportID * containing $FABRIC_MOD specific) initiator device/port diff --git a/drivers/target/target_core_pr.h b/drivers/target/target_core_pr.h index 772f9148e75c..198fad5c89dc 100644 --- a/drivers/target/target_core_pr.h +++ b/drivers/target/target_core_pr.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef TARGET_CORE_PR_H #define TARGET_CORE_PR_H diff --git a/drivers/target/target_core_pscsi.h b/drivers/target/target_core_pscsi.h index b86fb0e1b783..e8458b5e85c9 100644 --- a/drivers/target/target_core_pscsi.h +++ b/drivers/target/target_core_pscsi.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef TARGET_CORE_PSCSI_H #define TARGET_CORE_PSCSI_H diff --git a/drivers/target/target_core_rd.h b/drivers/target/target_core_rd.h index 91fc1a34791d..8b88f9b14c3f 100644 --- a/drivers/target/target_core_rd.h +++ b/drivers/target/target_core_rd.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef TARGET_CORE_RD_H #define TARGET_CORE_RD_H diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c index 8038255b21e8..f0db91ebd735 100644 --- a/drivers/target/target_core_stat.c +++ b/drivers/target/target_core_stat.c @@ -96,7 +96,7 @@ static struct configfs_attribute *target_stat_scsi_dev_attrs[] = { NULL, }; -static struct config_item_type target_stat_scsi_dev_cit = { +static const struct config_item_type target_stat_scsi_dev_cit = { .ct_attrs = target_stat_scsi_dev_attrs, .ct_owner = THIS_MODULE, }; @@ -193,7 +193,7 @@ static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = { NULL, }; -static struct config_item_type target_stat_scsi_tgt_dev_cit = { +static const struct config_item_type target_stat_scsi_tgt_dev_cit = { .ct_attrs = target_stat_scsi_tgt_dev_attrs, .ct_owner = THIS_MODULE, }; @@ -414,7 +414,7 @@ static struct configfs_attribute *target_stat_scsi_lu_attrs[] = { NULL, }; -static struct config_item_type target_stat_scsi_lu_cit = { +static const struct config_item_type target_stat_scsi_lu_cit = { .ct_attrs = target_stat_scsi_lu_attrs, .ct_owner = THIS_MODULE, }; @@ -540,7 +540,7 @@ static struct configfs_attribute *target_stat_scsi_port_attrs[] = { NULL, }; -static struct config_item_type target_stat_scsi_port_cit = { +static const struct config_item_type target_stat_scsi_port_cit = { .ct_attrs = target_stat_scsi_port_attrs, .ct_owner = THIS_MODULE, }; @@ -724,7 +724,7 @@ static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = { NULL, }; -static struct config_item_type target_stat_scsi_tgt_port_cit = { +static const struct config_item_type target_stat_scsi_tgt_port_cit = { .ct_attrs = target_stat_scsi_tgt_port_attrs, .ct_owner = THIS_MODULE, }; @@ -844,7 +844,7 @@ static struct configfs_attribute *target_stat_scsi_transport_attrs[] = { NULL, }; -static struct config_item_type target_stat_scsi_transport_cit = { +static const struct config_item_type target_stat_scsi_transport_cit = { .ct_attrs = target_stat_scsi_transport_attrs, .ct_owner = THIS_MODULE, }; @@ -1206,7 +1206,7 @@ static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = { NULL, }; -static struct config_item_type target_stat_scsi_auth_intr_cit = { +static const struct config_item_type target_stat_scsi_auth_intr_cit = { .ct_attrs = target_stat_scsi_auth_intr_attrs, .ct_owner = THIS_MODULE, }; @@ -1378,7 +1378,7 @@ static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = { NULL, }; -static struct config_item_type target_stat_scsi_att_intr_port_cit = { +static const struct config_item_type target_stat_scsi_att_intr_port_cit = { .ct_attrs = target_stat_scsi_ath_intr_port_attrs, .ct_owner = THIS_MODULE, }; diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index e22847bd79b9..9c7bc1ca341a 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -133,6 +133,15 @@ static bool __target_check_io_state(struct se_cmd *se_cmd, spin_unlock(&se_cmd->t_state_lock); return false; } + if (se_cmd->transport_state & CMD_T_PRE_EXECUTE) { + if (se_cmd->scsi_status) { + pr_debug("Attempted to abort io tag: %llu early failure" + " status: 0x%02x\n", se_cmd->tag, + se_cmd->scsi_status); + spin_unlock(&se_cmd->t_state_lock); + return false; + } + } if (sess->sess_tearing_down || se_cmd->cmd_wait_set) { pr_debug("Attempted to abort io tag: %llu already shutdown," " skipping\n", se_cmd->tag); @@ -217,7 +226,8 @@ static void core_tmr_drain_tmr_list( * LUN_RESET tmr.. */ spin_lock_irqsave(&dev->se_tmr_lock, flags); - list_del_init(&tmr->tmr_list); + if (tmr) + list_del_init(&tmr->tmr_list); list_for_each_entry_safe(tmr_p, tmr_pp, &dev->dev_tmr_list, tmr_list) { cmd = tmr_p->task_cmd; if (!cmd) { diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 836d552b0385..58caacd54a3b 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -67,7 +67,6 @@ static void transport_complete_task_attr(struct se_cmd *cmd); static int translate_sense_reason(struct se_cmd *cmd, sense_reason_t reason); static void transport_handle_queue_full(struct se_cmd *cmd, struct se_device *dev, int err, bool write_pending); -static int transport_put_cmd(struct se_cmd *cmd); static void target_complete_ok_work(struct work_struct *work); int init_se_kmem_caches(void) @@ -668,7 +667,7 @@ int transport_cmd_finish_abort(struct se_cmd *cmd, int remove) if (transport_cmd_check_stop_to_fabric(cmd)) return 1; if (remove && ack_kref) - ret = transport_put_cmd(cmd); + ret = target_put_sess_cmd(cmd); return ret; } @@ -1730,9 +1729,6 @@ void transport_generic_request_failure(struct se_cmd *cmd, { int ret = 0, post_ret = 0; - if (transport_check_aborted_status(cmd, 1)) - return; - pr_debug("-----[ Storage Engine Exception; sense_reason %d\n", sense_reason); target_show_cmd("-----[ ", cmd); @@ -1741,6 +1737,7 @@ void transport_generic_request_failure(struct se_cmd *cmd, * For SAM Task Attribute emulation for failed struct se_cmd */ transport_complete_task_attr(cmd); + /* * Handle special case for COMPARE_AND_WRITE failure, where the * callback is expected to drop the per device ->caw_sem. @@ -1749,6 +1746,9 @@ void transport_generic_request_failure(struct se_cmd *cmd, cmd->transport_complete_callback) cmd->transport_complete_callback(cmd, false, &post_ret); + if (transport_check_aborted_status(cmd, 1)) + return; + switch (sense_reason) { case TCM_NON_EXISTENT_LUN: case TCM_UNSUPPORTED_SCSI_OPCODE: @@ -1772,8 +1772,8 @@ void transport_generic_request_failure(struct se_cmd *cmd, case TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE: break; case TCM_OUT_OF_RESOURCES: - sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - break; + cmd->scsi_status = SAM_STAT_TASK_SET_FULL; + goto queue_status; case TCM_RESERVATION_CONFLICT: /* * No SENSE Data payload for this case, set SCSI Status @@ -1795,11 +1795,8 @@ void transport_generic_request_failure(struct se_cmd *cmd, cmd->orig_fe_lun, 0x2C, ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS); } - trace_target_cmd_complete(cmd); - ret = cmd->se_tfo->queue_status(cmd); - if (ret) - goto queue_full; - goto check_stop; + + goto queue_status; default: pr_err("Unknown transport error for CDB 0x%02x: %d\n", cmd->t_task_cdb[0], sense_reason); @@ -1816,6 +1813,11 @@ check_stop: transport_cmd_check_stop_to_fabric(cmd); return; +queue_status: + trace_target_cmd_complete(cmd); + ret = cmd->se_tfo->queue_status(cmd); + if (!ret) + goto check_stop; queue_full: transport_handle_queue_full(cmd, cmd->se_dev, ret, false); } @@ -1973,6 +1975,7 @@ void target_execute_cmd(struct se_cmd *cmd) } cmd->t_state = TRANSPORT_PROCESSING; + cmd->transport_state &= ~CMD_T_PRE_EXECUTE; cmd->transport_state |= CMD_T_ACTIVE | CMD_T_SENT; spin_unlock_irq(&cmd->t_state_lock); @@ -2010,6 +2013,8 @@ static void target_restart_delayed_cmds(struct se_device *dev) list_del(&cmd->se_delayed_node); spin_unlock(&dev->delayed_cmd_lock); + cmd->transport_state |= CMD_T_SENT; + __target_execute_cmd(cmd, true); if (cmd->sam_task_attr == TCM_ORDERED_TAG) @@ -2045,6 +2050,8 @@ static void transport_complete_task_attr(struct se_cmd *cmd) pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED\n", dev->dev_cur_ordered_id); } + cmd->se_cmd_flags &= ~SCF_TASK_ATTR_SET; + restart: target_restart_delayed_cmds(dev); } @@ -2090,7 +2097,7 @@ static void transport_complete_qf(struct se_cmd *cmd) ret = cmd->se_tfo->queue_data_in(cmd); break; } - /* Fall through for DMA_TO_DEVICE */ + /* fall through */ case DMA_NONE: queue_status: trace_target_cmd_complete(cmd); @@ -2268,7 +2275,7 @@ queue_rsp: goto queue_full; break; } - /* Fall through for DMA_TO_DEVICE */ + /* fall through */ case DMA_NONE: queue_status: trace_target_cmd_complete(cmd); @@ -2352,22 +2359,6 @@ static inline void transport_free_pages(struct se_cmd *cmd) cmd->t_bidi_data_nents = 0; } -/** - * transport_put_cmd - release a reference to a command - * @cmd: command to release - * - * This routine releases our reference to the command and frees it if possible. - */ -static int transport_put_cmd(struct se_cmd *cmd) -{ - BUG_ON(!cmd->se_tfo); - /* - * If this cmd has been setup with target_get_sess_cmd(), drop - * the kref and call ->release_cmd() in kref callback. - */ - return target_put_sess_cmd(cmd); -} - void *transport_kmap_data_sg(struct se_cmd *cmd) { struct scatterlist *sg = cmd->t_data_sg; @@ -2570,7 +2561,20 @@ EXPORT_SYMBOL(transport_generic_new_cmd); static void transport_write_pending_qf(struct se_cmd *cmd) { + unsigned long flags; int ret; + bool stop; + + spin_lock_irqsave(&cmd->t_state_lock, flags); + stop = (cmd->transport_state & (CMD_T_STOP | CMD_T_ABORTED)); + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + + if (stop) { + pr_debug("%s:%d CMD_T_STOP|CMD_T_ABORTED for ITT: 0x%08llx\n", + __func__, __LINE__, cmd->tag); + complete_all(&cmd->t_transport_stop_comp); + return; + } ret = cmd->se_tfo->write_pending(cmd); if (ret) { @@ -2603,7 +2607,7 @@ int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks) target_wait_free_cmd(cmd, &aborted, &tas); if (!aborted || tas) - ret = transport_put_cmd(cmd); + ret = target_put_sess_cmd(cmd); } else { if (wait_for_tasks) target_wait_free_cmd(cmd, &aborted, &tas); @@ -2619,7 +2623,7 @@ int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks) transport_lun_remove_cmd(cmd); if (!aborted || tas) - ret = transport_put_cmd(cmd); + ret = target_put_sess_cmd(cmd); } /* * If the task has been internally aborted due to TMR ABORT_TASK @@ -2664,6 +2668,7 @@ int target_get_sess_cmd(struct se_cmd *se_cmd, bool ack_kref) ret = -ESHUTDOWN; goto out; } + se_cmd->transport_state |= CMD_T_PRE_EXECUTE; list_add_tail(&se_cmd->se_cmd_list, &se_sess->sess_cmd_list); out: spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); @@ -3145,6 +3150,21 @@ static const struct sense_info sense_info_table[] = { .key = NOT_READY, .asc = 0x08, /* LOGICAL UNIT COMMUNICATION FAILURE */ }, + [TCM_INSUFFICIENT_REGISTRATION_RESOURCES] = { + /* + * From spc4r22 section5.7.7,5.7.8 + * If a PERSISTENT RESERVE OUT command with a REGISTER service action + * or a REGISTER AND IGNORE EXISTING KEY service action or + * REGISTER AND MOVE service actionis attempted, + * but there are insufficient device server resources to complete the + * operation, then the command shall be terminated with CHECK CONDITION + * status, with the sense key set to ILLEGAL REQUEST,and the additonal + * sense code set to INSUFFICIENT REGISTRATION RESOURCES. + */ + .key = ILLEGAL_REQUEST, + .asc = 0x55, + .ascq = 0x04, /* INSUFFICIENT REGISTRATION RESOURCES */ + }, }; static int translate_sense_reason(struct se_cmd *cmd, sense_reason_t reason) diff --git a/drivers/target/target_core_ua.h b/drivers/target/target_core_ua.h index 97402856a8f0..b0f4205a96cd 100644 --- a/drivers/target/target_core_ua.h +++ b/drivers/target/target_core_ua.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef TARGET_CORE_UA_H #define TARGET_CORE_UA_H diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 942d094269fb..a415d87f22d2 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -150,6 +150,8 @@ struct tcmu_dev { wait_queue_head_t nl_cmd_wq; char dev_config[TCMU_CONFIG_LEN]; + + int nl_reply_supported; }; #define TCMU_DEV(_se_dev) container_of(_se_dev, struct tcmu_dev, se_dev) @@ -430,7 +432,6 @@ static struct tcmu_cmd *tcmu_alloc_cmd(struct se_cmd *se_cmd) struct se_device *se_dev = se_cmd->se_dev; struct tcmu_dev *udev = TCMU_DEV(se_dev); struct tcmu_cmd *tcmu_cmd; - int cmd_id; tcmu_cmd = kmem_cache_zalloc(tcmu_cmd_cache, GFP_KERNEL); if (!tcmu_cmd) @@ -438,9 +439,6 @@ static struct tcmu_cmd *tcmu_alloc_cmd(struct se_cmd *se_cmd) tcmu_cmd->se_cmd = se_cmd; tcmu_cmd->tcmu_dev = udev; - if (udev->cmd_time_out) - tcmu_cmd->deadline = jiffies + - msecs_to_jiffies(udev->cmd_time_out); tcmu_cmd_reset_dbi_cur(tcmu_cmd); tcmu_cmd->dbi_cnt = tcmu_cmd_get_block_cnt(tcmu_cmd); @@ -451,19 +449,6 @@ static struct tcmu_cmd *tcmu_alloc_cmd(struct se_cmd *se_cmd) return NULL; } - idr_preload(GFP_KERNEL); - spin_lock_irq(&udev->commands_lock); - cmd_id = idr_alloc(&udev->commands, tcmu_cmd, 0, - USHRT_MAX, GFP_NOWAIT); - spin_unlock_irq(&udev->commands_lock); - idr_preload_end(); - - if (cmd_id < 0) { - tcmu_free_cmd(tcmu_cmd); - return NULL; - } - tcmu_cmd->cmd_id = cmd_id; - return tcmu_cmd; } @@ -746,6 +731,30 @@ static inline size_t tcmu_cmd_get_cmd_size(struct tcmu_cmd *tcmu_cmd, return command_size; } +static int tcmu_setup_cmd_timer(struct tcmu_cmd *tcmu_cmd) +{ + struct tcmu_dev *udev = tcmu_cmd->tcmu_dev; + unsigned long tmo = udev->cmd_time_out; + int cmd_id; + + if (tcmu_cmd->cmd_id) + return 0; + + cmd_id = idr_alloc(&udev->commands, tcmu_cmd, 1, USHRT_MAX, GFP_NOWAIT); + if (cmd_id < 0) { + pr_err("tcmu: Could not allocate cmd id.\n"); + return cmd_id; + } + tcmu_cmd->cmd_id = cmd_id; + + if (!tmo) + return 0; + + tcmu_cmd->deadline = round_jiffies_up(jiffies + msecs_to_jiffies(tmo)); + mod_timer(&udev->timeout, tcmu_cmd->deadline); + return 0; +} + static sense_reason_t tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) { @@ -839,7 +848,6 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) entry = (void *) mb + CMDR_OFF + cmd_head; memset(entry, 0, command_size); tcmu_hdr_set_op(&entry->hdr.len_op, TCMU_OP_CMD); - entry->hdr.cmd_id = tcmu_cmd->cmd_id; /* Handle allocating space from the data area */ tcmu_cmd_reset_dbi_cur(tcmu_cmd); @@ -877,6 +885,14 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) } entry->req.iov_bidi_cnt = iov_cnt; + ret = tcmu_setup_cmd_timer(tcmu_cmd); + if (ret) { + tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cnt); + mutex_unlock(&udev->cmdr_lock); + return TCM_OUT_OF_RESOURCES; + } + entry->hdr.cmd_id = tcmu_cmd->cmd_id; + /* * Recalaulate the command's base size and size according * to the actual needs @@ -910,8 +926,6 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) static sense_reason_t tcmu_queue_cmd(struct se_cmd *se_cmd) { - struct se_device *se_dev = se_cmd->se_dev; - struct tcmu_dev *udev = TCMU_DEV(se_dev); struct tcmu_cmd *tcmu_cmd; sense_reason_t ret; @@ -922,9 +936,6 @@ tcmu_queue_cmd(struct se_cmd *se_cmd) ret = tcmu_queue_cmd_ring(tcmu_cmd); if (ret != TCM_NO_SENSE) { pr_err("TCMU: Could not queue command\n"); - spin_lock_irq(&udev->commands_lock); - idr_remove(&udev->commands, tcmu_cmd->cmd_id); - spin_unlock_irq(&udev->commands_lock); tcmu_free_cmd(tcmu_cmd); } @@ -985,7 +996,7 @@ static unsigned int tcmu_handle_completions(struct tcmu_dev *udev) mb = udev->mb_addr; tcmu_flush_dcache_range(mb, sizeof(*mb)); - while (udev->cmdr_last_cleaned != ACCESS_ONCE(mb->cmd_tail)) { + while (udev->cmdr_last_cleaned != READ_ONCE(mb->cmd_tail)) { struct tcmu_cmd_entry *entry = (void *) mb + CMDR_OFF + udev->cmdr_last_cleaned; struct tcmu_cmd *cmd; @@ -1044,9 +1055,9 @@ static int tcmu_check_expired_cmd(int id, void *p, void *data) return 0; } -static void tcmu_device_timedout(unsigned long data) +static void tcmu_device_timedout(struct timer_list *t) { - struct tcmu_dev *udev = (struct tcmu_dev *)data; + struct tcmu_dev *udev = from_timer(udev, t, timeout); unsigned long flags; spin_lock_irqsave(&udev->commands_lock, flags); @@ -1106,12 +1117,13 @@ static struct se_device *tcmu_alloc_device(struct se_hba *hba, const char *name) idr_init(&udev->commands); spin_lock_init(&udev->commands_lock); - setup_timer(&udev->timeout, tcmu_device_timedout, - (unsigned long)udev); + timer_setup(&udev->timeout, tcmu_device_timedout, 0); init_waitqueue_head(&udev->nl_cmd_wq); spin_lock_init(&udev->nl_cmd_lock); + INIT_RADIX_TREE(&udev->data_blocks, GFP_KERNEL); + return &udev->se_dev; } @@ -1280,10 +1292,54 @@ static void tcmu_dev_call_rcu(struct rcu_head *p) kfree(udev); } +static int tcmu_check_and_free_pending_cmd(struct tcmu_cmd *cmd) +{ + if (test_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags)) { + kmem_cache_free(tcmu_cmd_cache, cmd); + return 0; + } + return -EINVAL; +} + +static void tcmu_blocks_release(struct tcmu_dev *udev) +{ + int i; + struct page *page; + + /* Try to release all block pages */ + mutex_lock(&udev->cmdr_lock); + for (i = 0; i <= udev->dbi_max; i++) { + page = radix_tree_delete(&udev->data_blocks, i); + if (page) { + __free_page(page); + atomic_dec(&global_db_count); + } + } + mutex_unlock(&udev->cmdr_lock); +} + static void tcmu_dev_kref_release(struct kref *kref) { struct tcmu_dev *udev = container_of(kref, struct tcmu_dev, kref); struct se_device *dev = &udev->se_dev; + struct tcmu_cmd *cmd; + bool all_expired = true; + int i; + + vfree(udev->mb_addr); + udev->mb_addr = NULL; + + /* Upper layer should drain all requests before calling this */ + spin_lock_irq(&udev->commands_lock); + idr_for_each_entry(&udev->commands, cmd, i) { + if (tcmu_check_and_free_pending_cmd(cmd) != 0) + all_expired = false; + } + idr_destroy(&udev->commands); + spin_unlock_irq(&udev->commands_lock); + WARN_ON(!all_expired); + + tcmu_blocks_release(udev); call_rcu(&dev->rcu_head, tcmu_dev_call_rcu); } @@ -1306,6 +1362,10 @@ static void tcmu_init_genl_cmd_reply(struct tcmu_dev *udev, int cmd) if (!tcmu_kern_cmd_reply_supported) return; + + if (udev->nl_reply_supported <= 0) + return; + relock: spin_lock(&udev->nl_cmd_lock); @@ -1332,6 +1392,9 @@ static int tcmu_wait_genl_cmd_reply(struct tcmu_dev *udev) if (!tcmu_kern_cmd_reply_supported) return 0; + if (udev->nl_reply_supported <= 0) + return 0; + pr_debug("sleeping for nl reply\n"); wait_for_completion(&nl_cmd->complete); @@ -1476,8 +1539,6 @@ static int tcmu_configure_device(struct se_device *dev) WARN_ON(udev->data_size % PAGE_SIZE); WARN_ON(udev->data_size % DATA_BLOCK_SIZE); - INIT_RADIX_TREE(&udev->data_blocks, GFP_KERNEL); - info->version = __stringify(TCMU_MAILBOX_VERSION); info->mem[0].name = "tcm-user command & data buffer"; @@ -1506,6 +1567,12 @@ static int tcmu_configure_device(struct se_device *dev) dev->dev_attrib.emulate_write_cache = 0; dev->dev_attrib.hw_queue_depth = 128; + /* If user didn't explicitly disable netlink reply support, use + * module scope setting. + */ + if (udev->nl_reply_supported >= 0) + udev->nl_reply_supported = tcmu_kern_cmd_reply_supported; + /* * Get a ref incase userspace does a close on the uio device before * LIO has initiated tcmu_free_device. @@ -1527,6 +1594,7 @@ err_netlink: uio_unregister_device(&udev->uio_info); err_register: vfree(udev->mb_addr); + udev->mb_addr = NULL; err_vzalloc: kfree(info->name); info->name = NULL; @@ -1534,37 +1602,11 @@ err_vzalloc: return ret; } -static int tcmu_check_and_free_pending_cmd(struct tcmu_cmd *cmd) -{ - if (test_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags)) { - kmem_cache_free(tcmu_cmd_cache, cmd); - return 0; - } - return -EINVAL; -} - static bool tcmu_dev_configured(struct tcmu_dev *udev) { return udev->uio_info.uio_dev ? true : false; } -static void tcmu_blocks_release(struct tcmu_dev *udev) -{ - int i; - struct page *page; - - /* Try to release all block pages */ - mutex_lock(&udev->cmdr_lock); - for (i = 0; i <= udev->dbi_max; i++) { - page = radix_tree_delete(&udev->data_blocks, i); - if (page) { - __free_page(page); - atomic_dec(&global_db_count); - } - } - mutex_unlock(&udev->cmdr_lock); -} - static void tcmu_free_device(struct se_device *dev) { struct tcmu_dev *udev = TCMU_DEV(dev); @@ -1576,9 +1618,6 @@ static void tcmu_free_device(struct se_device *dev) static void tcmu_destroy_device(struct se_device *dev) { struct tcmu_dev *udev = TCMU_DEV(dev); - struct tcmu_cmd *cmd; - bool all_expired = true; - int i; del_timer_sync(&udev->timeout); @@ -1586,20 +1625,6 @@ static void tcmu_destroy_device(struct se_device *dev) list_del(&udev->node); mutex_unlock(&root_udev_mutex); - vfree(udev->mb_addr); - - /* Upper layer should drain all requests before calling this */ - spin_lock_irq(&udev->commands_lock); - idr_for_each_entry(&udev->commands, cmd, i) { - if (tcmu_check_and_free_pending_cmd(cmd) != 0) - all_expired = false; - } - idr_destroy(&udev->commands); - spin_unlock_irq(&udev->commands_lock); - WARN_ON(!all_expired); - - tcmu_blocks_release(udev); - tcmu_netlink_event(udev, TCMU_CMD_REMOVED_DEVICE, 0, NULL); uio_unregister_device(&udev->uio_info); @@ -1610,7 +1635,7 @@ static void tcmu_destroy_device(struct se_device *dev) enum { Opt_dev_config, Opt_dev_size, Opt_hw_block_size, Opt_hw_max_sectors, - Opt_err, + Opt_nl_reply_supported, Opt_err, }; static match_table_t tokens = { @@ -1618,6 +1643,7 @@ static match_table_t tokens = { {Opt_dev_size, "dev_size=%u"}, {Opt_hw_block_size, "hw_block_size=%u"}, {Opt_hw_max_sectors, "hw_max_sectors=%u"}, + {Opt_nl_reply_supported, "nl_reply_supported=%d"}, {Opt_err, NULL} }; @@ -1692,6 +1718,17 @@ static ssize_t tcmu_set_configfs_dev_params(struct se_device *dev, ret = tcmu_set_dev_attrib(&args[0], &(dev->dev_attrib.hw_max_sectors)); break; + case Opt_nl_reply_supported: + arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + break; + } + ret = kstrtoint(arg_p, 0, &udev->nl_reply_supported); + kfree(arg_p); + if (ret < 0) + pr_err("kstrtoint() failed for nl_reply_supported=\n"); + break; default: break; } @@ -1734,8 +1771,7 @@ static ssize_t tcmu_cmd_time_out_show(struct config_item *item, char *page) { struct se_dev_attrib *da = container_of(to_config_group(item), struct se_dev_attrib, da_group); - struct tcmu_dev *udev = container_of(da->da_dev, - struct tcmu_dev, se_dev); + struct tcmu_dev *udev = TCMU_DEV(da->da_dev); return snprintf(page, PAGE_SIZE, "%lu\n", udev->cmd_time_out / MSEC_PER_SEC); } @@ -1842,6 +1878,34 @@ static ssize_t tcmu_dev_size_store(struct config_item *item, const char *page, } CONFIGFS_ATTR(tcmu_, dev_size); +static ssize_t tcmu_nl_reply_supported_show(struct config_item *item, + char *page) +{ + struct se_dev_attrib *da = container_of(to_config_group(item), + struct se_dev_attrib, da_group); + struct tcmu_dev *udev = TCMU_DEV(da->da_dev); + + return snprintf(page, PAGE_SIZE, "%d\n", udev->nl_reply_supported); +} + +static ssize_t tcmu_nl_reply_supported_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = container_of(to_config_group(item), + struct se_dev_attrib, da_group); + struct tcmu_dev *udev = TCMU_DEV(da->da_dev); + s8 val; + int ret; + + ret = kstrtos8(page, 0, &val); + if (ret < 0) + return ret; + + udev->nl_reply_supported = val; + return count; +} +CONFIGFS_ATTR(tcmu_, nl_reply_supported); + static ssize_t tcmu_emulate_write_cache_show(struct config_item *item, char *page) { @@ -1884,6 +1948,7 @@ static struct configfs_attribute *tcmu_attrib_attrs[] = { &tcmu_attr_dev_config, &tcmu_attr_dev_size, &tcmu_attr_emulate_write_cache, + &tcmu_attr_nl_reply_supported, NULL, }; diff --git a/drivers/target/target_core_xcopy.h b/drivers/target/target_core_xcopy.h index 7c0b105cbe1b..26ba4c3c9cff 100644 --- a/drivers/target/target_core_xcopy.h +++ b/drivers/target/target_core_xcopy.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <target/target_core_base.h> #define XCOPY_HDR_LEN 16 diff --git a/drivers/target/tcm_fc/Makefile b/drivers/target/tcm_fc/Makefile index 20b14bb087c9..a7d1593ab5af 100644 --- a/drivers/target/tcm_fc/Makefile +++ b/drivers/target/tcm_fc/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 tcm_fc-y += tfc_cmd.o \ tfc_conf.o \ tfc_io.o \ |