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2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771 
 kernel/drivers/scsi/be2iscsi/be_iscsi.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * This file is part of the Emulex Linux Device Driver for Enterprise iSCSI
34  * Host Bus Adapters. Refer to the README file included with this package
....@@ -6,13 +7,8 @@
67  * Copyright (c) 2018 Broadcom. All Rights Reserved.
78  * The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
89  *
9
- * This program is free software; you can redistribute it and/or modify it
10
- * under the terms of version 2 of the GNU General Public License as published
11
- * by the Free Software Foundation.
12
- *
1310  * Contact Information:
1411  * linux-drivers@broadcom.com
15
- *
1612  */
1713 
1814 #include <scsi/libiscsi.h>
....@@ -31,6 +27,7 @@
3127 
3228 /**
3329  * beiscsi_session_create - creates a new iscsi session
30
+ * @ep: pointer to iscsi ep
3431  * @cmds_max: max commands supported
3532  * @qdepth: max queue depth supported
3633  * @initial_cmdsn: initial iscsi CMDSN
....@@ -168,6 +165,7 @@
168165  * @cls_session: pointer to iscsi cls session
169166  * @cls_conn: pointer to iscsi cls conn
170167  * @transport_fd: EP handle(64 bit)
168
+ * @is_leading: indicate if this is the session leading connection (MCS)
171169  *
172170  * This function binds the TCP Conn with iSCSI Connection and Session.
173171  */
....@@ -184,6 +182,7 @@
184182 	struct beiscsi_endpoint *beiscsi_ep;
185183 	struct iscsi_endpoint *ep;
186184 	uint16_t cri_index;
185
+	int rc = 0;
187186 
188187 	ep = iscsi_lookup_endpoint(transport_fd);
189188 	if (!ep)
....@@ -191,15 +190,17 @@
191190 
192191 	beiscsi_ep = ep->dd_data;
193192 
194
-	if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
195
-		return -EINVAL;
193
+	if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) {
194
+		rc = -EINVAL;
195
+		goto put_ep;
196
+	}
196197 
197198 	if (beiscsi_ep->phba != phba) {
198199 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
199200 			    "BS_%d : beiscsi_ep->hba=%p not equal to phba=%p\n",
200201 			    beiscsi_ep->phba, phba);
201
-
202
-		return -EEXIST;
202
+		rc = -EEXIST;
203
+		goto put_ep;
203204 	}
204205 	cri_index = BE_GET_CRI_FROM_CID(beiscsi_ep->ep_cid);
205206 	if (phba->conn_table[cri_index]) {
....@@ -211,7 +212,8 @@
211212 				      beiscsi_ep->ep_cid,
212213 				      beiscsi_conn,
213214 				      phba->conn_table[cri_index]);
214
-			return -EINVAL;
215
+			rc = -EINVAL;
216
+			goto put_ep;
215217 		}
216218 	}
217219 
....@@ -228,7 +230,10 @@
228230 		    "BS_%d : cid %d phba->conn_table[%u]=%p\n",
229231 		    beiscsi_ep->ep_cid, cri_index, beiscsi_conn);
230232 	phba->conn_table[cri_index] = beiscsi_conn;
231
-	return 0;
233
+
234
+put_ep:
235
+	iscsi_put_endpoint(ep);
236
+	return rc;
232237 }
233238 
234239 static int beiscsi_iface_create_ipv4(struct beiscsi_hba *phba)
....@@ -445,6 +450,10 @@
445450 	}
446451 
447452 	nla_for_each_attr(attrib, data, dt_len, rm_len) {
453
+		/* ignore nla_type as it is never used */
454
+		if (nla_len(attrib) < sizeof(*iface_param))
455
+			return -EINVAL;
456
+
448457 		iface_param = nla_data(attrib);
449458 
450459 		if (iface_param->param_type != ISCSI_NET_PARAM)
....@@ -679,6 +688,7 @@
679688 	case ISCSI_PARAM_MAX_XMIT_DLENGTH:
680689 		if (conn->max_xmit_dlength > 65536)
681690 			conn->max_xmit_dlength = 65536;
691
+		fallthrough;
682692 	default:
683693 		return 0;
684694 	}
....@@ -771,7 +781,7 @@
771781 			status = beiscsi_get_initiator_name(phba, buf, false);
772782 			if (status < 0) {
773783 				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
774
-					    "BS_%d : Retreiving Initiator Name Failed\n");
784
+					    "BS_%d : Retrieving Initiator Name Failed\n");
775785 				status = 0;
776786 			}
777787 		}
....@@ -995,7 +1005,7 @@
9951005 
9961006 /**
9971007  * beiscsi_free_ep - free endpoint
998
- * @ep:	pointer to iscsi endpoint structure
1008
+ * @beiscsi_ep: pointer to device endpoint struct
9991009  */
10001010 static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep)
10011011 {
....@@ -1030,9 +1040,10 @@
10301040 
10311041 /**
10321042  * beiscsi_open_conn - Ask FW to open a TCP connection
1033
- * @ep:	endpoint to be used
1043
+ * @ep: pointer to device endpoint struct
10341044  * @src_addr: The source IP address
10351045  * @dst_addr: The Destination  IP address
1046
+ * @non_blocking: blocking or non-blocking call
10361047  *
10371048  * Asks the FW to open a TCP connection
10381049  */
....@@ -1071,9 +1082,9 @@
10711082 	else
10721083 		req_memsize = sizeof(struct tcp_connect_and_offload_in_v1);
10731084 
1074
-	nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
1085
+	nonemb_cmd.va = dma_alloc_coherent(&phba->ctrl.pdev->dev,
10751086 				req_memsize,
1076
-				&nonemb_cmd.dma);
1087
+				&nonemb_cmd.dma, GFP_KERNEL);
10771088 	if (nonemb_cmd.va == NULL) {
10781089 
10791090 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
....@@ -1091,7 +1102,7 @@
10911102 			    "BS_%d : mgmt_open_connection Failed for cid=%d\n",
10921103 			    beiscsi_ep->ep_cid);
10931104 
1094
-		pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1105
+		dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
10951106 				    nonemb_cmd.va, nonemb_cmd.dma);
10961107 		beiscsi_free_ep(beiscsi_ep);
10971108 		return -EAGAIN;
....@@ -1104,8 +1115,9 @@
11041115 			    "BS_%d : mgmt_open_connection Failed");
11051116 
11061117 		if (ret != -EBUSY)
1107
-			pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1108
-					    nonemb_cmd.va, nonemb_cmd.dma);
1118
+			dma_free_coherent(&phba->ctrl.pdev->dev,
1119
+					nonemb_cmd.size, nonemb_cmd.va,
1120
+					nonemb_cmd.dma);
11091121 
11101122 		beiscsi_free_ep(beiscsi_ep);
11111123 		return ret;
....@@ -1118,14 +1130,14 @@
11181130 	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
11191131 		    "BS_%d : mgmt_open_connection Success\n");
11201132 
1121
-	pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1133
+	dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
11221134 			    nonemb_cmd.va, nonemb_cmd.dma);
11231135 	return 0;
11241136 }
11251137 
11261138 /**
11271139  * beiscsi_ep_connect - Ask chip to create TCP Conn
1128
- * @scsi_host: Pointer to scsi_host structure
1140
+ * @shost: Pointer to scsi_host structure
11291141  * @dst_addr: The IP address of Target
11301142  * @non_blocking: blocking or non-blocking call
11311143  *
....@@ -1230,7 +1242,7 @@
12301242 
12311243 /**
12321244  * beiscsi_conn_close - Invalidate and upload connection
1233
- * @ep: The iscsi endpoint
1245
+ * @beiscsi_ep: pointer to device endpoint struct
12341246  *
12351247  * Returns 0 on success,  -1 on failure.
12361248  */