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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d 
 kernel/include/scsi/libsas.h
....@@ -1,26 +1,9 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  * SAS host prototypes and structures header file
34  *
45  * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
56  * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
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- *
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- * This file is licensed under GPLv2.
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License as
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- * published by the Free Software Foundation; either version 2 of the
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- * License, or (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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- * General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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- * USA
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- *
247  */
258 
269 #ifndef _LIBSAS_H_
....@@ -52,8 +35,8 @@
5235 };
5336 
5437 enum sas_phy_type {
55
-        PHY_TYPE_PHYSICAL,
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-        PHY_TYPE_VIRTUAL
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+	PHY_TYPE_PHYSICAL,
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+	PHY_TYPE_VIRTUAL
5740 };
5841 
5942 /* The events are mnemonically described in sas_dump.c
....@@ -91,7 +74,7 @@
9174 
9275 #define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj)
9376 #define to_dev_attr(_attr)  container_of(_attr, struct domain_dev_attribute,\
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-                                         attr)
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+					 attr)
9578 
9679 enum routing_attribute {
9780 	DIRECT_ROUTING,
....@@ -184,37 +167,37 @@
184167 	spinlock_t done_lock;
185168 	enum sas_device_type dev_type;
186169 
187
-        enum sas_linkrate linkrate;
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-        enum sas_linkrate min_linkrate;
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-        enum sas_linkrate max_linkrate;
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+	enum sas_linkrate linkrate;
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+	enum sas_linkrate min_linkrate;
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+	enum sas_linkrate max_linkrate;
190173 
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-        int  pathways;
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+	int  pathways;
192175 
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-        struct domain_device *parent;
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-        struct list_head siblings; /* devices on the same level */
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-        struct asd_sas_port *port;        /* shortcut to root of the tree */
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+	struct domain_device *parent;
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+	struct list_head siblings; /* devices on the same level */
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+	struct asd_sas_port *port;        /* shortcut to root of the tree */
196179 	struct sas_phy *phy;
197180 
198
-        struct list_head dev_list_node;
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+	struct list_head dev_list_node;
199182 	struct list_head disco_list_node; /* awaiting probe or destruct */
200183 
201
-        enum sas_protocol    iproto;
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-        enum sas_protocol    tproto;
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+	enum sas_protocol    iproto;
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+	enum sas_protocol    tproto;
203186 
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-        struct sas_rphy *rphy;
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+	struct sas_rphy *rphy;
205188 
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-        u8  sas_addr[SAS_ADDR_SIZE];
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-        u8  hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
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+	u8  sas_addr[SAS_ADDR_SIZE];
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+	u8  hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
208191 
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-        u8  frame_rcvd[32];
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+	u8  frame_rcvd[32];
210193 
211
-        union {
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-                struct expander_device ex_dev;
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-                struct sata_device     sata_dev; /* STP & directly attached */
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+	union {
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+		struct expander_device ex_dev;
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+		struct sata_device     sata_dev; /* STP & directly attached */
214197 		struct ssp_device      ssp_dev;
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-        };
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+	};
216199 
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-        void *lldd_dev;
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+	void *lldd_dev;
218201 	unsigned long state;
219202 	struct kref kref;
220203 };
....@@ -223,6 +206,12 @@
223206 	struct list_head drain_node;
224207 	struct work_struct work;
225208 };
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+
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+static inline bool dev_is_expander(enum sas_device_type type)
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+{
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+	return type == SAS_EDGE_EXPANDER_DEVICE ||
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+	       type == SAS_FANOUT_EXPANDER_DEVICE;
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+}
226215 
227216 static inline void INIT_SAS_WORK(struct sas_work *sw, void (*fn)(struct work_struct *))
228217 {
....@@ -245,9 +234,9 @@
245234 struct sas_discovery {
246235 	struct sas_discovery_event disc_work[DISC_NUM_EVENTS];
247236 	unsigned long    pending;
248
-	u8     fanout_sas_addr[8];
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-	u8     eeds_a[8];
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-	u8     eeds_b[8];
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+	u8     fanout_sas_addr[SAS_ADDR_SIZE];
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+	u8     eeds_a[SAS_ADDR_SIZE];
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+	u8     eeds_b[SAS_ADDR_SIZE];
251240 	int    max_level;
252241 };
253242 
....@@ -402,10 +391,6 @@
402391 	int strict_wide_ports; /* both sas_addr and attached_sas_addr must match
403392 				* their siblings when forming wide ports */
404393 
405
-	/* LLDD calls these to notify the class of an event. */
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-	int (*notify_port_event)(struct asd_sas_phy *, enum port_event);
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-	int (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);
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-
409394 	void *lldd_ha;		  /* not touched by sas class code */
410395 
411396 	struct list_head eh_done_q;  /* complete via scsi_eh_flush_done_q */
....@@ -512,10 +497,10 @@
512497 
513498 /* When a task finishes with a response, the LLDD examines the
514499  * response:
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- * 	- For an ATA task task_status_struct::stat is set to
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+ *	- For an ATA task task_status_struct::stat is set to
516501  * SAS_PROTO_RESPONSE, and the task_status_struct::buf is set to the
517502  * contents of struct ata_task_resp.
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- * 	- For SSP tasks, if no data is present or status/TMF response
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+ *	- For SSP tasks, if no data is present or status/TMF response
519504  * is valid, task_status_struct::stat is set.  If data is present
520505  * (SENSE data), the LLDD copies up to SAS_STATUS_BUF_SIZE, sets
521506  * task_status_struct::buf_valid_size, and task_status_struct::stat is
....@@ -671,15 +656,13 @@
671656 extern void sas_resume_ha(struct sas_ha_struct *sas_ha);
672657 extern void sas_suspend_ha(struct sas_ha_struct *sas_ha);
673658 
674
-int sas_set_phy_speed(struct sas_phy *phy,
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-		      struct sas_phy_linkrates *rates);
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+int sas_set_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates);
676660 int sas_phy_reset(struct sas_phy *phy, int hard_reset);
677
-extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *);
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+extern int sas_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
678662 extern int sas_target_alloc(struct scsi_target *);
679663 extern int sas_slave_configure(struct scsi_device *);
680664 extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
681
-extern int sas_bios_param(struct scsi_device *,
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-			  struct block_device *,
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+extern int sas_bios_param(struct scsi_device *, struct block_device *,
683666 			  sector_t capacity, int *hsc);
684667 extern struct scsi_transport_template *
685668 sas_domain_attach_transport(struct sas_domain_function_template *);
....@@ -709,7 +692,8 @@
709692 
710693 extern void sas_target_destroy(struct scsi_target *);
711694 extern int sas_slave_alloc(struct scsi_device *);
712
-extern int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg);
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+extern int sas_ioctl(struct scsi_device *sdev, unsigned int cmd,
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+		     void __user *arg);
713697 extern int sas_drain_work(struct sas_ha_struct *ha);
714698 
715699 extern void sas_ssp_task_response(struct device *dev, struct sas_task *task,
....@@ -718,4 +702,11 @@
718702 
719703 int sas_request_addr(struct Scsi_Host *shost, u8 *addr);
720704 
705
+int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event);
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+int sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event);
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+int sas_notify_port_event_gfp(struct asd_sas_phy *phy, enum port_event event,
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+			      gfp_t gfp_flags);
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+int sas_notify_phy_event_gfp(struct asd_sas_phy *phy, enum phy_event event,
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+			     gfp_t gfp_flags);
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+
721712 #endif /* _SASLIB_H_ */