136 static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)  in scsi_cmd_to_driver()  argument
138 	return *(struct scsi_driver **)cmd->request->rq_disk->private_data;  in scsi_cmd_to_driver()
146 extern void scsi_finish_command(struct scsi_cmnd *cmd);
152 extern int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask);
153 extern void scsi_release_buffers(struct scsi_cmnd *cmd);
155 extern int scsi_dma_map(struct scsi_cmnd *cmd);
156 extern void scsi_dma_unmap(struct scsi_cmnd *cmd);
159 void scsi_free_command(gfp_t gfp_mask, struct scsi_cmnd *cmd);
161 static inline unsigned scsi_sg_count(struct scsi_cmnd *cmd)  in scsi_sg_count()  argument
163 	return cmd->sdb.table.nents;  in scsi_sg_count()
166 static inline struct scatterlist *scsi_sglist(struct scsi_cmnd *cmd)  in scsi_sglist()  argument
168 	return cmd->sdb.table.sgl;  in scsi_sglist()
171 static inline unsigned scsi_bufflen(struct scsi_cmnd *cmd)  in scsi_bufflen()  argument
173 	return cmd->sdb.length;  in scsi_bufflen()
176 static inline void scsi_set_resid(struct scsi_cmnd *cmd, int resid)  in scsi_set_resid()  argument
178 	cmd->sdb.resid = resid;  in scsi_set_resid()
181 static inline int scsi_get_resid(struct scsi_cmnd *cmd)  in scsi_get_resid()  argument
183 	return cmd->sdb.resid;  in scsi_get_resid()
186 #define scsi_for_each_sg(cmd, sg, nseg, __i)			\  argument
187 	for_each_sg(scsi_sglist(cmd), sg, nseg, __i)
189 static inline int scsi_bidi_cmnd(struct scsi_cmnd *cmd)  in scsi_bidi_cmnd()  argument
191 	return blk_bidi_rq(cmd->request) &&  in scsi_bidi_cmnd()
192 		(cmd->request->next_rq->special != NULL);  in scsi_bidi_cmnd()
195 static inline struct scsi_data_buffer *scsi_in(struct scsi_cmnd *cmd)  in scsi_in()  argument
197 	return scsi_bidi_cmnd(cmd) ?  in scsi_in()
198 		cmd->request->next_rq->special : &cmd->sdb;  in scsi_in()
201 static inline struct scsi_data_buffer *scsi_out(struct scsi_cmnd *cmd)  in scsi_out()  argument
203 	return &cmd->sdb;  in scsi_out()
206 static inline int scsi_sg_copy_from_buffer(struct scsi_cmnd *cmd,  in scsi_sg_copy_from_buffer()  argument
209 	return sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),  in scsi_sg_copy_from_buffer()
213 static inline int scsi_sg_copy_to_buffer(struct scsi_cmnd *cmd,  in scsi_sg_copy_to_buffer()  argument
216 	return sg_copy_to_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),  in scsi_sg_copy_to_buffer()
279 static inline unsigned scsi_prot_sg_count(struct scsi_cmnd *cmd)  in scsi_prot_sg_count()  argument
281 	return cmd->prot_sdb ? cmd->prot_sdb->table.nents : 0;  in scsi_prot_sg_count()
284 static inline struct scatterlist *scsi_prot_sglist(struct scsi_cmnd *cmd)  in scsi_prot_sglist()  argument
286 	return cmd->prot_sdb ? cmd->prot_sdb->table.sgl : NULL;  in scsi_prot_sglist()
289 static inline struct scsi_data_buffer *scsi_prot(struct scsi_cmnd *cmd)  in scsi_prot()  argument
291 	return cmd->prot_sdb;  in scsi_prot()
294 #define scsi_for_each_prot_sg(cmd, sg, nseg, __i)		\  argument
295 	for_each_sg(scsi_prot_sglist(cmd), sg, nseg, __i)
297 static inline void set_msg_byte(struct scsi_cmnd *cmd, char status)  in set_msg_byte()  argument
299 	cmd->result = (cmd->result & 0xffff00ff) | (status << 8);  in set_msg_byte()
302 static inline void set_host_byte(struct scsi_cmnd *cmd, char status)  in set_host_byte()  argument
304 	cmd->result = (cmd->result & 0xff00ffff) | (status << 16);  in set_host_byte()
307 static inline void set_driver_byte(struct scsi_cmnd *cmd, char status)  in set_driver_byte()  argument
309 	cmd->result = (cmd->result & 0x00ffffff) | (status << 24);  in set_driver_byte()