From: Luben Tuikov <ltuikov@yahoo.com>
To: Greg KH <greg@kroah.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Matthew Wilcox <willy@linux.intel.com>
Subject: [PATCH] [USB] UAS: Rename urbs by pipe
Date: Thu, 28 Oct 2010 13:05:14 -0700 (PDT) [thread overview]
Message-ID: <444316.89210.qm@web31808.mail.mud.yahoo.com> (raw)
The reason to do this is to accommodate sending
different IU types using the existing
infrastructure.
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
---
drivers/usb/storage/uas.c | 33 ++++++++++++++++-----------------
1 files changed, 16 insertions(+), 17 deletions(-)
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 17e1820..48dc2b8 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -97,8 +97,8 @@ struct uas_dev_info {
};
enum {
- ALLOC_SENSE_URB = (1 << 0),
- SUBMIT_SENSE_URB = (1 << 1),
+ ALLOC_STATUS_URB = (1 << 0),
+ SUBMIT_STATUS_URB = (1 << 1),
ALLOC_DATA_IN_URB = (1 << 2),
SUBMIT_DATA_IN_URB = (1 << 3),
ALLOC_DATA_OUT_URB = (1 << 4),
@@ -112,13 +112,12 @@ struct uas_cmd_info {
unsigned int state;
unsigned int stream;
struct urb *cmd_urb;
- struct urb *sense_urb;
+ struct urb *status_urb;
struct urb *data_in_urb;
struct urb *data_out_urb;
struct list_head list;
};
-/* I hate forward declarations, but I actually have a loop */
static int uas_submit_urbs(struct scsi_cmnd *cmnd,
struct uas_dev_info *devinfo, gfp_t gfp);
@@ -204,7 +203,7 @@ static void uas_xfer_data(struct urb *urb, struct scsi_cmnd *cmnd,
struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
int err;
- cmdinfo->state = direction | SUBMIT_SENSE_URB;
+ cmdinfo->state = direction | SUBMIT_STATUS_URB;
err = uas_submit_urbs(cmnd, cmnd->device->hostdata, GFP_ATOMIC);
if (err) {
spin_lock(&uas_work_lock);
@@ -360,21 +359,21 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
{
struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
- if (cmdinfo->state & ALLOC_SENSE_URB) {
- cmdinfo->sense_urb = uas_alloc_sense_urb(devinfo, gfp, cmnd,
- cmdinfo->stream);
- if (!cmdinfo->sense_urb)
+ if (cmdinfo->state & ALLOC_STATUS_URB) {
+ cmdinfo->status_urb = uas_alloc_sense_urb(devinfo, gfp, cmnd,
+ cmdinfo->stream);
+ if (!cmdinfo->status_urb)
return SCSI_MLQUEUE_DEVICE_BUSY;
- cmdinfo->state &= ~ALLOC_SENSE_URB;
+ cmdinfo->state &= ~ALLOC_STATUS_URB;
}
- if (cmdinfo->state & SUBMIT_SENSE_URB) {
- if (usb_submit_urb(cmdinfo->sense_urb, gfp)) {
+ if (cmdinfo->state & SUBMIT_STATUS_URB) {
+ if (usb_submit_urb(cmdinfo->status_urb, gfp)) {
scmd_printk(KERN_INFO, cmnd,
"sense urb submission failure\n");
return SCSI_MLQUEUE_DEVICE_BUSY;
}
- cmdinfo->state &= ~SUBMIT_SENSE_URB;
+ cmdinfo->state &= ~SUBMIT_STATUS_URB;
}
if (cmdinfo->state & ALLOC_DATA_IN_URB) {
@@ -443,7 +442,7 @@ static int uas_queuecommand(struct scsi_cmnd *cmnd,
BUILD_BUG_ON(sizeof(struct uas_cmd_info) > sizeof(struct scsi_pointer));
- if (!cmdinfo->sense_urb && sdev->current_cmnd)
+ if (!cmdinfo->status_urb && sdev->current_cmnd)
return SCSI_MLQUEUE_DEVICE_BUSY;
if (blk_rq_tagged(cmnd->request)) {
@@ -455,7 +454,7 @@ static int uas_queuecommand(struct scsi_cmnd *cmnd,
cmnd->scsi_done = done;
- cmdinfo->state = ALLOC_SENSE_URB | SUBMIT_SENSE_URB |
+ cmdinfo->state = ALLOC_STATUS_URB | SUBMIT_STATUS_URB |
ALLOC_CMD_URB | SUBMIT_CMD_URB;
switch (cmnd->sc_data_direction) {
@@ -478,8 +477,8 @@ static int uas_queuecommand(struct scsi_cmnd *cmnd,
err = uas_submit_urbs(cmnd, devinfo, GFP_ATOMIC);
if (err) {
/* If we did nothing, give up now */
- if (cmdinfo->state & SUBMIT_SENSE_URB) {
- usb_free_urb(cmdinfo->sense_urb);
+ if (cmdinfo->state & SUBMIT_STATUS_URB) {
+ usb_free_urb(cmdinfo->status_urb);
return SCSI_MLQUEUE_DEVICE_BUSY;
}
spin_lock(&uas_work_lock);
--
1.7.0.1
next reply other threads:[~2010-10-28 20:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-28 20:05 Luben Tuikov [this message]
2010-10-28 20:41 ` [PATCH] [USB] UAS: Rename urbs by pipe Greg KH
2010-10-28 21:43 ` Luben Tuikov
2010-11-08 11:22 ` Matthew Wilcox
2010-11-08 17:17 ` Luben Tuikov
2010-12-01 1:07 ` Greg KH
2010-12-02 21:40 ` Matthew Wilcox
2010-12-02 22:26 ` Luben Tuikov
2010-12-03 0:07 ` Greg KH
-- strict thread matches above, loose matches on Subject: below --
2010-11-08 17:52 Luben Tuikov
2010-12-10 10:50 Luben Tuikov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=444316.89210.qm@web31808.mail.mud.yahoo.com \
--to=ltuikov@yahoo.com \
--cc=greg@kroah.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=willy@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.