diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 17:19:08 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 17:19:08 -0800 |
commit | 9b73e76f3cf63379dcf45fcd4f112f5812418d0a (patch) | |
tree | 4e6bef87cd0cd6d848fc39a5ae25b981dbbe035b /drivers/usb/storage/transport.c | |
parent | 50d9a126240f9961cfdd063336bbeb91f77a7dce (diff) | |
parent | 23c3e290fb9ce38cabc2822b47583fc8702411bf (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (200 commits)
[SCSI] usbstorage: use last_sector_bug flag universally
[SCSI] libsas: abstract STP task status into a function
[SCSI] ultrastor: clean up inline asm warnings
[SCSI] aic7xxx: fix firmware build
[SCSI] aacraid: fib context lock for management ioctls
[SCSI] ch: remove forward declarations
[SCSI] ch: fix device minor number management bug
[SCSI] ch: handle class_device_create failure properly
[SCSI] NCR5380: fix section mismatch
[SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices
[SCSI] IB/iSER: add logical unit reset support
[SCSI] don't use __GFP_DMA for sense buffers if not required
[SCSI] use dynamically allocated sense buffer
[SCSI] scsi.h: add macro for enclosure bit of inquiry data
[SCSI] sd: add fix for devices with last sector access problems
[SCSI] fix pcmcia compile problem
[SCSI] aacraid: add Voodoo Lite class of cards.
[SCSI] aacraid: add new driver features flags
[SCSI] qla2xxx: Update version number to 8.02.00-k7.
[SCSI] qla2xxx: Issue correct MBC_INITIALIZE_FIRMWARE command.
...
Diffstat (limited to 'drivers/usb/storage/transport.c')
-rw-r--r-- | drivers/usb/storage/transport.c | 45 |
1 files changed, 28 insertions, 17 deletions
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index c646750ccc3..d9f4912f873 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -459,6 +459,22 @@ static int usb_stor_bulk_transfer_sglist(struct us_data *us, unsigned int pipe, } /* + * Common used function. Transfer a complete command + * via usb_stor_bulk_transfer_sglist() above. Set cmnd resid + */ +int usb_stor_bulk_srb(struct us_data* us, unsigned int pipe, + struct scsi_cmnd* srb) +{ + unsigned int partial; + int result = usb_stor_bulk_transfer_sglist(us, pipe, scsi_sglist(srb), + scsi_sg_count(srb), scsi_bufflen(srb), + &partial); + + scsi_set_resid(srb, scsi_bufflen(srb) - partial); + return result; +} + +/* * Transfer an entire SCSI command's worth of data payload over the bulk * pipe. * @@ -508,7 +524,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) int result; /* send the command to the transport layer */ - srb->resid = 0; + scsi_set_resid(srb, 0); result = us->transport(srb, us); /* if the command gets aborted by the higher layers, we need to @@ -568,7 +584,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) * A short transfer on a command where we don't expect it * is unusual, but it doesn't mean we need to auto-sense. */ - if ((srb->resid > 0) && + if ((scsi_get_resid(srb) > 0) && !((srb->cmnd[0] == REQUEST_SENSE) || (srb->cmnd[0] == INQUIRY) || (srb->cmnd[0] == MODE_SENSE) || @@ -593,7 +609,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) srb->cmd_len = 12; /* issue the auto-sense command */ - srb->resid = 0; + scsi_set_resid(srb, 0); temp_result = us->transport(us->srb, us); /* let's clean up right away */ @@ -649,7 +665,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) /* Did we transfer less than the minimum amount required? */ if (srb->result == SAM_STAT_GOOD && - srb->request_bufflen - srb->resid < srb->underflow) + scsi_bufflen(srb) - scsi_get_resid(srb) < srb->underflow) srb->result = (DID_ERROR << 16) | (SUGGEST_RETRY << 24); return; @@ -708,7 +724,7 @@ void usb_stor_stop_transport(struct us_data *us) int usb_stor_CBI_transport(struct scsi_cmnd *srb, struct us_data *us) { - unsigned int transfer_length = srb->request_bufflen; + unsigned int transfer_length = scsi_bufflen(srb); unsigned int pipe = 0; int result; @@ -737,9 +753,7 @@ int usb_stor_CBI_transport(struct scsi_cmnd *srb, struct us_data *us) if (transfer_length) { pipe = srb->sc_data_direction == DMA_FROM_DEVICE ? us->recv_bulk_pipe : us->send_bulk_pipe; - result = usb_stor_bulk_transfer_sg(us, pipe, - srb->request_buffer, transfer_length, - srb->use_sg, &srb->resid); + result = usb_stor_bulk_srb(us, pipe, srb); US_DEBUGP("CBI data stage result is 0x%x\n", result); /* if we stalled the data transfer it means command failed */ @@ -808,7 +822,7 @@ int usb_stor_CBI_transport(struct scsi_cmnd *srb, struct us_data *us) */ int usb_stor_CB_transport(struct scsi_cmnd *srb, struct us_data *us) { - unsigned int transfer_length = srb->request_bufflen; + unsigned int transfer_length = scsi_bufflen(srb); int result; /* COMMAND STAGE */ @@ -836,9 +850,7 @@ int usb_stor_CB_transport(struct scsi_cmnd *srb, struct us_data *us) if (transfer_length) { unsigned int pipe = srb->sc_data_direction == DMA_FROM_DEVICE ? us->recv_bulk_pipe : us->send_bulk_pipe; - result = usb_stor_bulk_transfer_sg(us, pipe, - srb->request_buffer, transfer_length, - srb->use_sg, &srb->resid); + result = usb_stor_bulk_srb(us, pipe, srb); US_DEBUGP("CB data stage result is 0x%x\n", result); /* if we stalled the data transfer it means command failed */ @@ -904,7 +916,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) { struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf; struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf; - unsigned int transfer_length = srb->request_bufflen; + unsigned int transfer_length = scsi_bufflen(srb); unsigned int residue; int result; int fake_sense = 0; @@ -955,9 +967,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) if (transfer_length) { unsigned int pipe = srb->sc_data_direction == DMA_FROM_DEVICE ? us->recv_bulk_pipe : us->send_bulk_pipe; - result = usb_stor_bulk_transfer_sg(us, pipe, - srb->request_buffer, transfer_length, - srb->use_sg, &srb->resid); + result = usb_stor_bulk_srb(us, pipe, srb); US_DEBUGP("Bulk data transfer result 0x%x\n", result); if (result == USB_STOR_XFER_ERROR) return USB_STOR_TRANSPORT_ERROR; @@ -1036,7 +1046,8 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) if (residue) { if (!(us->flags & US_FL_IGNORE_RESIDUE)) { residue = min(residue, transfer_length); - srb->resid = max(srb->resid, (int) residue); + scsi_set_resid(srb, max(scsi_get_resid(srb), + (int) residue)); } } |