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
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