kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-09-24 18:16:04 +00:00
Code Issues Releases Packages Activity
linux/block/bsg.c

1074 lines
22 KiB
Raw Normal View History

bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: update sg_io_v4 structure This updates sg_io_v4 structure (based on Doug's RFC, release 1.3). The major changes are: - add dout_resid field - increase tag size to 64 bits to comply with SAM-4 and SRP - add dout_iovec_count and din_iovec_count dout_iovec_count and din_iovec_count aren't supported now. I'm not sure whether they will be supported or not but they were added for the possible future changes. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-29 23:00:46 +09:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bind bsg to all SCSI devices This patch binds bsg to all SCSI devices (their request queues) like the current sg driver does. We can send SCSI commands to non disk and cdrom scsi devices like OSD via bsg. This patch removes bsg_register_queue from blk_register_queue so bsg devices aren't bound to non SCSI block devices. If they want bsg, I'll send a patch to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:24 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: minor cleanup - fix MODULE_DESCRIPTION typo. - unify MODULE_DESCRIPTION and bsg_version. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:21:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[BLOCK] Get rid of request_queue_t typedef Some of the code has been gradually transitioned to using the proper struct request_queue, but there's lots left. So do a full sweet of the kernel and get rid of this typedef and replace its uses with the proper type. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-24 09:28:11 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
improve bsg device allocation This patch addresses on two issues on bsg device allocation. - the current maxium number of bsg devices is 256. It's too small if we allocate bsg devices to all SCSI devices, transport entities, etc. This increses the maxium number to 32768 (taken from the sg driver). - SCSI devices are dynamically added and removed. Currently, bsg can't handle it well since bsd_device->minor is simply increased. This is dependent on the patchset that I posted yesterday: http://marc.info/?l=linux-scsi&m=117440208726755&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:58 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: convert to dynamic major 240 was hardcoded, that was clearly a dumb mistake. Convert bsg to use alloc_chrdev_region() to retrieve a dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:56:10 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: simplify __bsg_alloc_command failpath Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-24 09:05:54 +01:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: simplify __bsg_alloc_command failpath Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-24 09:05:54 +01:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: device hash table cleanup - kill unused bsg_list_idx macro. - add bsg_dev_idx_hash() that returns an appropriate hlist_head. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:21:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: device hash table cleanup - kill unused bsg_list_idx macro. - add bsg_dev_idx_hash() that returns an appropriate hlist_head. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:21:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[BLOCK] Get rid of request_queue_t typedef Some of the code has been gradually transitioned to using the proper struct request_queue, but there's lots left. So do a full sweet of the kernel and get rid of this typedef and replace its uses with the proper type. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-24 09:28:11 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: add SCSI transport-level request support This enables bsg to handle SCSI transport-level request like SAS management protocol (SMP). - add BSG_SUB_PROTOCOL_{SCSI_CMD, SCSI_TMF, SCSI_TRANSPORT} definitions. - SCSI transport-level requests skip blk_verify_command(). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:16 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[BLOCK] Get rid of request_queue_t typedef Some of the code has been gradually transitioned to using the proper struct request_queue, but there's lots left. So do a full sweet of the kernel and get rid of this typedef and replace its uses with the proper type. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-24 09:28:11 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: add SCSI transport-level request support This enables bsg to handle SCSI transport-level request like SAS management protocol (SMP). - add BSG_SUB_PROTOCOL_{SCSI_CMD, SCSI_TMF, SCSI_TRANSPORT} definitions. - SCSI transport-level requests skip blk_verify_command(). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:16 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: add SCSI transport-level request support This enables bsg to handle SCSI transport-level request like SAS management protocol (SMP). - add BSG_SUB_PROTOCOL_{SCSI_CMD, SCSI_TMF, SCSI_TRANSPORT} definitions. - SCSI transport-level requests skip blk_verify_command(). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:16 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: add SCSI transport-level request support This enables bsg to handle SCSI transport-level request like SAS management protocol (SMP). - add BSG_SUB_PROTOCOL_{SCSI_CMD, SCSI_TMF, SCSI_TRANSPORT} definitions. - SCSI transport-level requests skip blk_verify_command(). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:16 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[BLOCK] Get rid of request_queue_t typedef Some of the code has been gradually transitioned to using the proper struct request_queue, but there's lots left. So do a full sweet of the kernel and get rid of this typedef and replace its uses with the proper type. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-24 09:28:11 +02:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
[SCSI] bsg: copy the cmd_type field to the subordinate request for bidi This fixes a problem in SCSI where we use the (previously uninitialised) cmd_type via blk_pc_request() to set up the transfer in scsi_init_sgtable(). Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-25 20:05:55 -06:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[BLOCK] Get rid of request_queue_t typedef Some of the code has been gradually transitioned to using the proper struct request_queue, but there's lots left. So do a full sweet of the kernel and get rid of this typedef and replace its uses with the proper type. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-24 09:28:11 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
block: add request->raw_data_len With padding and draining moved into it, block layer now may extend requests as directed by queue parameters, so now a request has two sizes - the original request size and the extended size which matches the size of area pointed to by bios and later by sgs. The latter size is what lower layers are primarily interested in when allocating, filling up DMA tables and setting up the controller. Both padding and draining extend the data area to accomodate controller characteristics. As any controller which speaks SCSI can handle underflows, feeding larger data area is safe. So, this patch makes the primary data length field, request->data_len, indicate the size of full data area and add a separate length field, request->raw_data_len, for the unmodified request size. The latter is used to report to higher layer (userland) and where the original request size should be fed to the controller or device. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-02-19 11:36:35 +01:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
[SCSI] bsg: update sg_io_v4 structure This updates sg_io_v4 structure (based on Doug's RFC, release 1.3). The major changes are: - add dout_resid field - increase tag size to 64 bits to comply with SAM-4 and SRP - add dout_iovec_count and din_iovec_count dout_iovec_count and din_iovec_count aren't supported now. I'm not sure whether they will be supported or not but they were added for the possible future changes. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-29 23:00:46 +09:00
block: add request->raw_data_len With padding and draining moved into it, block layer now may extend requests as directed by queue parameters, so now a request has two sizes - the original request size and the extended size which matches the size of area pointed to by bios and later by sgs. The latter size is what lower layers are primarily interested in when allocating, filling up DMA tables and setting up the controller. Both padding and draining extend the data area to accomodate controller characteristics. As any controller which speaks SCSI can handle underflows, feeding larger data area is safe. So, this patch makes the primary data length field, request->data_len, indicate the size of full data area and add a separate length field, request->raw_data_len, for the unmodified request size. The latter is used to report to higher layer (userland) and where the original request size should be fed to the controller or device. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-02-19 11:36:35 +01:00
[SCSI] bsg: update sg_io_v4 structure This updates sg_io_v4 structure (based on Doug's RFC, release 1.3). The major changes are: - add dout_resid field - increase tag size to 64 bits to comply with SAM-4 and SRP - add dout_iovec_count and din_iovec_count dout_iovec_count and din_iovec_count aren't supported now. I'm not sure whether they will be supported or not but they were added for the possible future changes. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-29 23:00:46 +09:00
block: add request->raw_data_len With padding and draining moved into it, block layer now may extend requests as directed by queue parameters, so now a request has two sizes - the original request size and the extended size which matches the size of area pointed to by bios and later by sgs. The latter size is what lower layers are primarily interested in when allocating, filling up DMA tables and setting up the controller. Both padding and draining extend the data area to accomodate controller characteristics. As any controller which speaks SCSI can handle underflows, feeding larger data area is safe. So, this patch makes the primary data length field, request->data_len, indicate the size of full data area and add a separate length field, request->raw_data_len, for the unmodified request size. The latter is used to report to higher layer (userland) and where the original request size should be fed to the controller or device. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-02-19 11:36:35 +01:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
[SCSI] libsas, bsg: pass errors through correctly Currently in BSG, errors returned in req->errors aren't passed back to the calling programme (either via SG_IO or via read/write). Fix this, while preserving the SCSI convention of returning status in req->errors. Now update libsas to return errors correctly instead of to ignore them. Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-29 10:59:53 -06:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix the deadlock on discarding done commands The previous commit introduced a deadlock in discarding commands, because we forget to unlock the bd spinlock. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-06-07 13:24:06 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: minor cleanups This just kills linux/config.h and dprintk warnings. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:18:22 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[BLOCK] Get rid of request_queue_t typedef Some of the code has been gradually transitioned to using the proper struct request_queue, but there's lots left. So do a full sweet of the kernel and get rid of this typedef and replace its uses with the proper type. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-24 09:28:11 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix a blocking read bug This patch fixes a bug that read() returns ENODATA even with a blocking file descriptor when there are no commands pending. This also includes some cleanups. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-08 15:32:03 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: replace SG v3 with SG v4 This patch replaces SG v3 in bsg with SG v4 (except for SG_IO). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:15 +01:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: minor cleanups This just kills linux/config.h and dprintk warnings. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:18:22 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: device hash table cleanup - kill unused bsg_list_idx macro. - add bsg_dev_idx_hash() that returns an appropriate hlist_head. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:21:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: minor cleanups This just kills linux/config.h and dprintk warnings. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:18:22 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: device hash table cleanup - kill unused bsg_list_idx macro. - add bsg_dev_idx_hash() that returns an appropriate hlist_head. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:21:15 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] libsas, bsg: pass errors through correctly Currently in BSG, errors returned in req->errors aren't passed back to the calling programme (either via SG_IO or via read/write). Fix this, while preserving the SCSI convention of returning status in req->errors. Now update libsas to return errors correctly instead of to ignore them. Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-29 10:59:53 -06:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: add SG_IO to SG v4 This adds SG_IO support to SG v4. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:57 +01:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: add SG_IO to SG v4 This adds SG_IO support to SG v4. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:57 +01:00
bsg: add bidi support bsg uses the rq->next_rq pointer for a bidi request. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-16 08:52:15 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
[SCSI] libsas, bsg: pass errors through correctly Currently in BSG, errors returned in req->errors aren't passed back to the calling programme (either via SG_IO or via read/write). Fix this, while preserving the SCSI convention of returning status in req->errors. Now update libsas to return errors correctly instead of to ignore them. Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-29 10:59:53 -06:00
bsg: add SG_IO to SG v4 This adds SG_IO support to SG v4. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:57 +01:00
bsg: style cleanup Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:25:23 +01:00
[SCSI] libsas, bsg: pass errors through correctly Currently in BSG, errors returned in req->errors aren't passed back to the calling programme (either via SG_IO or via read/write). Fix this, while preserving the SCSI convention of returning status in req->errors. Now update libsas to return errors correctly instead of to ignore them. Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-12-29 10:59:53 -06:00
bsg: add SG_IO to SG v4 This adds SG_IO support to SG v4. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-20 11:20:57 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: mark struct file_operations const struct file_operations is generally const (to avoid false sharing and get compile time errors on accidental writing to this shared structure); bsg recently added one of these without the const keyword. Patch below marks it const.... Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-15 11:01:53 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: fix bsg_unregister_queue scsi_sysfs_add_sdev ignores the bsg_register_queue failure, so bsg_unregister_queue must check whether the queue has a bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-21 13:23:25 +09:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
[SCSI] bsg: make class backlinks Currently, bsg doesn't make class backlinks (a process whereby you'd get a link to bsg in the device directory in the same way you get one for sg). This is because the bsg device is uninitialised, so the class device has nothing it can attach to. The fix is to make the bsg device point to the cdevice of the entity creating the bsg, necessitating changing the bsg_register_queue() prototype into a form that takes the generic device. Acked-by: FUJITA Tomonori <tomof@acm.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 18:22:17 -05:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: make class backlinks Currently, bsg doesn't make class backlinks (a process whereby you'd get a link to bsg in the device directory in the same way you get one for sg). This is because the bsg device is uninitialised, so the class device has nothing it can attach to. The fix is to make the bsg device point to the cdevice of the entity creating the bsg, necessitating changing the bsg_register_queue() prototype into a form that takes the generic device. Acked-by: FUJITA Tomonori <tomof@acm.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 18:22:17 -05:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: minor bug fixes This fixes the following minor issues: - add EXPORT_SYMBOL_GPL for bsg_register_queue and bsg_unregister_queue. - shut up gcc warnings Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <axboe@nelson.home.kernel.dk>
2007-03-30 11:19:39 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: make class backlinks Currently, bsg doesn't make class backlinks (a process whereby you'd get a link to bsg in the device directory in the same way you get one for sg). This is because the bsg device is uninitialised, so the class device has nothing it can attach to. The fix is to make the bsg device point to the cdevice of the entity creating the bsg, necessitating changing the bsg_register_queue() prototype into a form that takes the generic device. Acked-by: FUJITA Tomonori <tomof@acm.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 18:22:17 -05:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bind bsg to all SCSI devices This patch binds bsg to all SCSI devices (their request queues) like the current sg driver does. We can send SCSI commands to non disk and cdrom scsi devices like OSD via bsg. This patch removes bsg_register_queue from blk_register_queue so bsg devices aren't bound to non SCSI block devices. If they want bsg, I'll send a patch to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:24 +02:00
[SCSI] bsg: make class backlinks Currently, bsg doesn't make class backlinks (a process whereby you'd get a link to bsg in the device directory in the same way you get one for sg). This is because the bsg device is uninitialised, so the class device has nothing it can attach to. The fix is to make the bsg device point to the cdevice of the entity creating the bsg, necessitating changing the bsg_register_queue() prototype into a form that takes the generic device. Acked-by: FUJITA Tomonori <tomof@acm.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 18:22:17 -05:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
improve bsg device allocation This patch addresses on two issues on bsg device allocation. - the current maxium number of bsg devices is 256. It's too small if we allocate bsg devices to all SCSI devices, transport entities, etc. This increses the maxium number to 32768 (taken from the sg driver). - SCSI devices are dynamically added and removed. Currently, bsg can't handle it well since bsd_device->minor is simply increased. This is dependent on the patchset that I posted yesterday: http://marc.info/?l=linux-scsi&m=117440208726755&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:58 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
improve bsg device allocation This patch addresses on two issues on bsg device allocation. - the current maxium number of bsg devices is 256. It's too small if we allocate bsg devices to all SCSI devices, transport entities, etc. This increses the maxium number to 32768 (taken from the sg driver). - SCSI devices are dynamically added and removed. Currently, bsg can't handle it well since bsd_device->minor is simply increased. This is dependent on the patchset that I posted yesterday: http://marc.info/?l=linux-scsi&m=117440208726755&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:58 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
improve bsg device allocation This patch addresses on two issues on bsg device allocation. - the current maxium number of bsg devices is 256. It's too small if we allocate bsg devices to all SCSI devices, transport entities, etc. This increses the maxium number to 32768 (taken from the sg driver). - SCSI devices are dynamically added and removed. Currently, bsg can't handle it well since bsd_device->minor is simply increased. This is dependent on the patchset that I posted yesterday: http://marc.info/?l=linux-scsi&m=117440208726755&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:58 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bsg: bind bsg to request_queue instead of gendisk This patch binds bsg devices to request_queue instead of gendisk. Any objects (like transport entities) can define own request_handler and create own bsg device. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:40:35 +02:00
[SCSI] bsg: make class backlinks Currently, bsg doesn't make class backlinks (a process whereby you'd get a link to bsg in the device directory in the same way you get one for sg). This is because the bsg device is uninitialised, so the class device has nothing it can attach to. The fix is to make the bsg device point to the cdevice of the entity creating the bsg, necessitating changing the bsg_register_queue() prototype into a form that takes the generic device. Acked-by: FUJITA Tomonori <tomof@acm.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 18:22:17 -05:00
bsg: convert to dynamic major 240 was hardcoded, that was clearly a dumb mistake. Convert bsg to use alloc_chrdev_region() to retrieve a dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:56:10 +02:00
[SCSI] bsg: make class backlinks Currently, bsg doesn't make class backlinks (a process whereby you'd get a link to bsg in the device directory in the same way you get one for sg). This is because the bsg device is uninitialised, so the class device has nothing it can attach to. The fix is to make the bsg device point to the cdevice of the entity creating the bsg, necessitating changing the bsg_register_queue() prototype into a form that takes the generic device. Acked-by: FUJITA Tomonori <tomof@acm.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 18:22:17 -05:00
bind bsg to all SCSI devices This patch binds bsg to all SCSI devices (their request queues) like the current sg driver does. We can send SCSI commands to non disk and cdrom scsi devices like OSD via bsg. This patch removes bsg_register_queue from blk_register_queue so bsg devices aren't bound to non SCSI block devices. If they want bsg, I'll send a patch to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:24 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bind bsg to all SCSI devices This patch binds bsg to all SCSI devices (their request queues) like the current sg driver does. We can send SCSI commands to non disk and cdrom scsi devices like OSD via bsg. This patch removes bsg_register_queue from blk_register_queue so bsg devices aren't bound to non SCSI block devices. If they want bsg, I'll send a patch to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:24 +02:00
Fix new generic block device SG compile We had a merge issue with the "dentry" field going away from the kobject, and being replaced by a sysfs_dirent field (named "sd") instead. That broke the BSG compile. Cc: Jens Axboe <jens.axboe@oracle.com> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 11:18:23 -07:00
bind bsg to all SCSI devices This patch binds bsg to all SCSI devices (their request queues) like the current sg driver does. We can send SCSI commands to non disk and cdrom scsi devices like OSD via bsg. This patch removes bsg_register_queue from blk_register_queue so bsg devices aren't bound to non SCSI block devices. If they want bsg, I'll send a patch to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:24 +02:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bind bsg to all SCSI devices This patch binds bsg to all SCSI devices (their request queues) like the current sg driver does. We can send SCSI commands to non disk and cdrom scsi devices like OSD via bsg. This patch removes bsg_register_queue from blk_register_queue so bsg devices aren't bound to non SCSI block devices. If they want bsg, I'll send a patch to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:24 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
[SCSI] bsg: fix bsg_register_queue error path unfortunately, if IS_ERR(class_dev) is true, that means class_dev isn't null and the check in the error leg is pointless ... it's also asking for trouble to request unregistration of a device we haven't actually created (although it works currently). Fix by using explicit gotos and unregisters. Acked-by: FUJITA Tomonori <tomof@acm.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 16:50:10 -05:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
[SCSI] bsg: fix bsg_register_queue error path unfortunately, if IS_ERR(class_dev) is true, that means class_dev isn't null and the check in the error leg is pointless ... it's also asking for trouble to request unregistration of a device we haven't actually created (although it works currently). Fix by using explicit gotos and unregisters. Acked-by: FUJITA Tomonori <tomof@acm.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 16:50:10 -05:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
[SCSI] bsg: make class backlinks Currently, bsg doesn't make class backlinks (a process whereby you'd get a link to bsg in the device directory in the same way you get one for sg). This is because the bsg device is uninitialised, so the class device has nothing it can attach to. The fix is to make the bsg device point to the cdevice of the entity creating the bsg, necessitating changing the bsg_register_queue() prototype into a form that takes the generic device. Acked-by: FUJITA Tomonori <tomof@acm.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-20 18:22:17 -05:00
[SCSI] bsg: use lib/idr.c to find a unique minor number This replaces the current linear search for a unique minor number with lib/idr.c. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-23 09:33:26 +09:00
bsg: add cheasy error checks for sysfs stuff Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:30:17 +01:00
bind bsg to all SCSI devices This patch binds bsg to all SCSI devices (their request queues) like the current sg driver does. We can send SCSI commands to non disk and cdrom scsi devices like OSD via bsg. This patch removes bsg_register_queue from blk_register_queue so bsg devices aren't bound to non SCSI block devices. If they want bsg, I'll send a patch to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:24 +02:00
bsg: minor bug fixes This fixes the following minor issues: - add EXPORT_SYMBOL_GPL for bsg_register_queue and bsg_unregister_queue. - shut up gcc warnings Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <axboe@nelson.home.kernel.dk>
2007-03-30 11:19:39 +02:00
bind bsg to all SCSI devices This patch binds bsg to all SCSI devices (their request queues) like the current sg driver does. We can send SCSI commands to non disk and cdrom scsi devices like OSD via bsg. This patch removes bsg_register_queue from blk_register_queue so bsg devices aren't bound to non SCSI block devices. If they want bsg, I'll send a patch to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:24 +02:00
cdev: remove unneeded setting of cdev names struct cdev does not need the kobject name to be set, as it is never used. This patch fixes up the few places it is set. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-12 15:06:57 -07:00
improve bsg device allocation This patch addresses on two issues on bsg device allocation. - the current maxium number of bsg devices is 256. It's too small if we allocate bsg devices to all SCSI devices, transport entities, etc. This increses the maxium number to 32768 (taken from the sg driver). - SCSI devices are dynamically added and removed. Currently, bsg can't handle it well since bsd_device->minor is simply increased. This is dependent on the patchset that I posted yesterday: http://marc.info/?l=linux-scsi&m=117440208726755&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:58 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: convert to dynamic major 240 was hardcoded, that was clearly a dumb mistake. Convert bsg to use alloc_chrdev_region() to retrieve a dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:56:10 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
mm: Remove slab destructors from kmem_cache_create(). Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20 10:11:58 +09:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: address various review comments This address most of the comments made by Andrew. The two remaining are conversion to idr, and dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:52:29 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: fix initialization error handling bugs This fixes the following bugs and cleans up the initialization code: - cdev_del is missing. - unregister_chrdev_region should be used instead of unregister_chrdev. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:20:46 +02:00
Add queue resizing support Just get rid of the preallocated command map, use the slab cache to get/free commands instead. Original patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>, changed by me to not use a mempool. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-01-23 16:24:41 +01:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: convert to dynamic major 240 was hardcoded, that was clearly a dumb mistake. Convert bsg to use alloc_chrdev_region() to retrieve a dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:56:10 +02:00
bsg: fix initialization error handling bugs This fixes the following bugs and cleans up the initialization code: - cdev_del is missing. - unregister_chrdev_region should be used instead of unregister_chrdev. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:20:46 +02:00
improve bsg device allocation This patch addresses on two issues on bsg device allocation. - the current maxium number of bsg devices is 256. It's too small if we allocate bsg devices to all SCSI devices, transport entities, etc. This increses the maxium number to 32768 (taken from the sg driver). - SCSI devices are dynamically added and removed. Currently, bsg can't handle it well since bsd_device->minor is simply increased. This is dependent on the patchset that I posted yesterday: http://marc.info/?l=linux-scsi&m=117440208726755&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:58 +02:00
bsg: convert to dynamic major 240 was hardcoded, that was clearly a dumb mistake. Convert bsg to use alloc_chrdev_region() to retrieve a dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:56:10 +02:00
improve bsg device allocation This patch addresses on two issues on bsg device allocation. - the current maxium number of bsg devices is 256. It's too small if we allocate bsg devices to all SCSI devices, transport entities, etc. This increses the maxium number to 32768 (taken from the sg driver). - SCSI devices are dynamically added and removed. Currently, bsg can't handle it well since bsd_device->minor is simply increased. This is dependent on the patchset that I posted yesterday: http://marc.info/?l=linux-scsi&m=117440208726755&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:58 +02:00
bsg: convert to dynamic major 240 was hardcoded, that was clearly a dumb mistake. Convert bsg to use alloc_chrdev_region() to retrieve a dynamic major. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 08:56:10 +02:00
bsg: fix initialization error handling bugs This fixes the following bugs and cleans up the initialization code: - cdev_del is missing. - unregister_chrdev_region should be used instead of unregister_chrdev. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:20:46 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix missing space in version print Tomo introduced a bug in his commit, removing the space between "driver" and "version" in the init printk. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 15:10:09 +02:00
bsg: minor cleanup - fix MODULE_DESCRIPTION typo. - unify MODULE_DESCRIPTION and bsg_version. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:21:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: fix initialization error handling bugs This fixes the following bugs and cleans up the initialization code: - cdev_del is missing. - unregister_chrdev_region should be used instead of unregister_chrdev. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:20:46 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bsg: minor cleanup - fix MODULE_DESCRIPTION typo. - unify MODULE_DESCRIPTION and bsg_version. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-17 12:21:35 +02:00
bsg: support for full generic block layer SG v3 Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09 12:38:05 +02:00
bind bsg to all SCSI devices This patch binds bsg to all SCSI devices (their request queues) like the current sg driver does. We can send SCSI commands to non disk and cdrom scsi devices like OSD via bsg. This patch removes bsg_register_queue from blk_register_queue so bsg devices aren't bound to non SCSI block devices. If they want bsg, I'll send a patch to do that. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-03-28 13:29:24 +02:00