~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/linux/bsg-lib.h

Version: ~ [ linux-6.0-rc1 ] ~ [ linux-5.19.1 ] ~ [ linux-5.18.17 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.60 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.136 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.210 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.255 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.290 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.325 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.302 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /* SPDX-License-Identifier: GPL-2.0-or-later */
  2 /*
  3  *  BSG helper library
  4  *
  5  *  Copyright (C) 2008   James Smart, Emulex Corporation
  6  *  Copyright (C) 2011   Red Hat, Inc.  All rights reserved.
  7  *  Copyright (C) 2011   Mike Christie
  8  */
  9 #ifndef _BLK_BSG_
 10 #define _BLK_BSG_
 11 
 12 #include <linux/blkdev.h>
 13 #include <scsi/scsi_request.h>
 14 
 15 struct bsg_job;
 16 struct request;
 17 struct device;
 18 struct scatterlist;
 19 struct request_queue;
 20 
 21 typedef int (bsg_job_fn) (struct bsg_job *);
 22 typedef enum blk_eh_timer_return (bsg_timeout_fn)(struct request *);
 23 
 24 struct bsg_buffer {
 25         unsigned int payload_len;
 26         int sg_cnt;
 27         struct scatterlist *sg_list;
 28 };
 29 
 30 struct bsg_job {
 31         struct device *dev;
 32 
 33         struct kref kref;
 34 
 35         unsigned int timeout;
 36 
 37         /* Transport/driver specific request/reply structs */
 38         void *request;
 39         void *reply;
 40 
 41         unsigned int request_len;
 42         unsigned int reply_len;
 43         /*
 44          * On entry : reply_len indicates the buffer size allocated for
 45          * the reply.
 46          *
 47          * Upon completion : the message handler must set reply_len
 48          *  to indicates the size of the reply to be returned to the
 49          *  caller.
 50          */
 51 
 52         /* DMA payloads for the request/response */
 53         struct bsg_buffer request_payload;
 54         struct bsg_buffer reply_payload;
 55 
 56         int result;
 57         unsigned int reply_payload_rcv_len;
 58 
 59         /* BIDI support */
 60         struct request *bidi_rq;
 61         struct bio *bidi_bio;
 62 
 63         void *dd_data;          /* Used for driver-specific storage */
 64 };
 65 
 66 void bsg_job_done(struct bsg_job *job, int result,
 67                   unsigned int reply_payload_rcv_len);
 68 struct request_queue *bsg_setup_queue(struct device *dev, const char *name,
 69                 bsg_job_fn *job_fn, bsg_timeout_fn *timeout, int dd_job_size);
 70 void bsg_remove_queue(struct request_queue *q);
 71 void bsg_job_put(struct bsg_job *job);
 72 int __must_check bsg_job_get(struct bsg_job *job);
 73 
 74 #endif
 75 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp