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From: Douglas Gilbert <dgilbert@interlog.com>
To: linux-scsi@vger.kernel.org
Cc: martin.petersen@oracle.com, jejb@linux.vnet.ibm.com, hare@suse.de
Subject: [PATCH v17 45/45] sg: bump version to 4.0.12
Date: Wed,  7 Apr 2021 21:45:31 -0400	[thread overview]
Message-ID: <20210408014531.248890-46-dgilbert@interlog.com> (raw)
In-Reply-To: <20210408014531.248890-1-dgilbert@interlog.com>

Now that the sg version 4 interface is supported:
  - with ioctl(SG_IO) for synchronous/blocking use
  - with ioctl(SG_IOSUBMIT) and ioctl(SG_IORECEIVE) for
    async/non-blocking use
Plus new ioctl(SG_IOSUBMIT_V3) and ioctl(SG_IORECEIVE_V3)
potentially replace write() and read() for the sg
version 3 interface. Bump major driver version number
from 3 to 4.

The main new feature is the removal of the fixed 16 element
array of requests per file descriptor. It is replaced by
a xarray (eXtensible array) in their parent which is a
sg_fd object (i.e. a file descriptor). The sg_request
objects are not freed until the owning file descriptor is
closed; instead these objects are re-used when multiple
commands are sent to the same file descriptor.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
---
 drivers/scsi/sg.c      | 11 ++++++-----
 include/uapi/scsi/sg.h |  4 ++--
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 19aafd8e23f1..f5ab61d19f01 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -7,13 +7,14 @@
  *
  * Original driver (sg.c):
  *        Copyright (C) 1992 Lawrence Foard
- * Version 2 and 3 extensions to driver:
- *        Copyright (C) 1998 - 2019 Douglas Gilbert
+ * Version 2, 3 and 4 extensions to driver:
+ *        Copyright (C) 1998 - 2021 Douglas Gilbert
+ *
  */
 
-static int sg_version_num = 30901;  /* [x]xyyzz where [x] empty when x=0 */
-#define SG_VERSION_STR "3.9.01"		/* [x]x.[y]y.zz */
-static char *sg_version_date = "20190606";
+static int sg_version_num = 40012;  /* [x]xyyzz where [x] empty when x=0 */
+#define SG_VERSION_STR "4.0.12"		/* [x]x.[y]y.zz */
+static char *sg_version_date = "20210402";
 
 #include <linux/module.h>
 
diff --git a/include/uapi/scsi/sg.h b/include/uapi/scsi/sg.h
index 11b58b279241..33109f3d5ed3 100644
--- a/include/uapi/scsi/sg.h
+++ b/include/uapi/scsi/sg.h
@@ -12,9 +12,9 @@
  *   Copyright (C) 1992 Lawrence Foard
  *
  * Later extensions (versions 2, 3 and 4) to driver:
- *   Copyright (C) 1998 - 2018 Douglas Gilbert
+ *   Copyright (C) 1998 - 2021 Douglas Gilbert
  *
- * Version 4.0.11 (20190502)
+ * Version 4.0.12 (20210111)
  *  This version is for Linux 4 and 5 series kernels.
  *
  * Documentation
-- 
2.25.1


      parent reply	other threads:[~2021-04-08  1:46 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-08  1:44 [PATCH v17 00/45] sg: add v4 interface Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 01/45] sg: move functions around Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 02/45] sg: remove typedefs, type+formatting cleanup Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 03/45] sg: sg_log and is_enabled Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 04/45] sg: rework sg_poll(), minor changes Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 05/45] sg: bitops in sg_device Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 06/45] sg: make open count an atomic Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 07/45] sg: move header to uapi section Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 08/45] sg: speed sg_poll and sg_get_num_waiting Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 09/45] sg: sg_allow_if_err_recovery and renames Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 10/45] sg: improve naming Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 11/45] sg: change rwlock to spinlock Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 12/45] sg: ioctl handling Douglas Gilbert
2021-04-08  1:44 ` [PATCH v17 13/45] sg: split sg_read Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 14/45] sg: sg_common_write add structure for arguments Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 15/45] sg: rework sg_vma_fault Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 16/45] sg: rework sg_mmap Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 17/45] sg: replace sg_allow_access Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 18/45] sg: rework scatter gather handling Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 19/45] sg: introduce request state machine Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 20/45] sg: sg_find_srp_by_id Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 21/45] sg: sg_fill_request_element Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 22/45] sg: printk change %p to %pK Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 23/45] sg: xarray for fds in device Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 24/45] sg: xarray for reqs in fd Douglas Gilbert
2021-04-08  8:05   ` Hannes Reinecke
2021-04-08  1:45 ` [PATCH v17 25/45] sg: replace rq array with xarray Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 26/45] sg: sense buffer rework Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 27/45] sg: add sg v4 interface support Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 28/45] sg: rework debug info Douglas Gilbert
2021-04-08  8:06   ` Hannes Reinecke
2021-04-08  1:45 ` [PATCH v17 29/45] sg: add 8 byte SCSI LUN to sg_scsi_id Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 30/45] sg: expand sg_comm_wr_t Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 31/45] sg: add sg_iosubmit_v3 and sg_ioreceive_v3 ioctls Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 32/45] sg: add some __must_hold macros Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 33/45] sg: move procfs objects to avoid forward decls Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 34/45] sg: protect multiple receivers Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 35/45] sg: first debugfs support Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 36/45] sg: rework mmap support Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 37/45] sg: defang allow_dio Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 38/45] sg: warn v3 write system call users Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 39/45] sg: add mmap_sz tracking Douglas Gilbert
2021-04-08  8:07   ` Hannes Reinecke
2021-04-08  1:45 ` [PATCH v17 40/45] sg: remove rcv_done request state Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 41/45] sg: track lowest inactive and await indexes Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 42/45] sg: remove unit attention check for device changed Douglas Gilbert
2021-04-08  1:45 ` [PATCH v17 43/45] sg: no_dxfer: move to/from kernel buffers Douglas Gilbert
2021-04-08  8:07   ` Hannes Reinecke
2021-04-08  1:45 ` [PATCH v17 44/45] sg: add blk_poll support Douglas Gilbert
2021-04-08  8:14   ` Hannes Reinecke
2021-04-08 16:28     ` Douglas Gilbert
2021-04-09  6:00       ` Douglas Gilbert
2021-04-08  1:45 ` Douglas Gilbert [this message]

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