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-rw-r--r--drivers/usb/storage/freecom.c14
-rw-r--r--drivers/usb/storage/isd200.c66
-rw-r--r--drivers/usb/storage/protocol.c126
-rw-r--r--drivers/usb/storage/scsiglue.c24
-rw-r--r--drivers/usb/storage/sddr09.c9
-rw-r--r--drivers/usb/storage/shuttle_usbat.c68
-rw-r--r--drivers/usb/storage/transport.c45
-rw-r--r--drivers/usb/storage/transport.h2
8 files changed, 178 insertions, 176 deletions
diff --git a/drivers/usb/storage/freecom.c b/drivers/usb/storage/freecom.c
index 88aa59ab7563..f5a4e8d6a3b1 100644
--- a/drivers/usb/storage/freecom.c
+++ b/drivers/usb/storage/freecom.c
@@ -132,8 +132,7 @@ freecom_readdata (struct scsi_cmnd *srb, struct us_data *us,
/* Now transfer all of our blocks. */
US_DEBUGP("Start of read\n");
- result = usb_stor_bulk_transfer_sg(us, ipipe, srb->request_buffer,
- count, srb->use_sg, &srb->resid);
+ result = usb_stor_bulk_srb(us, ipipe, srb);
US_DEBUGP("freecom_readdata done!\n");
if (result > USB_STOR_XFER_SHORT)
@@ -166,8 +165,7 @@ freecom_writedata (struct scsi_cmnd *srb, struct us_data *us,
/* Now transfer all of our blocks. */
US_DEBUGP("Start of write\n");
- result = usb_stor_bulk_transfer_sg(us, opipe, srb->request_buffer,
- count, srb->use_sg, &srb->resid);
+ result = usb_stor_bulk_srb(us, opipe, srb);
US_DEBUGP("freecom_writedata done!\n");
if (result > USB_STOR_XFER_SHORT)
@@ -281,7 +279,7 @@ int freecom_transport(struct scsi_cmnd *srb, struct us_data *us)
* and such will hang. */
US_DEBUGP("Device indicates that it has %d bytes available\n",
le16_to_cpu (fst->Count));
- US_DEBUGP("SCSI requested %d\n", srb->request_bufflen);
+ US_DEBUGP("SCSI requested %d\n", scsi_bufflen(srb));
/* Find the length we desire to read. */
switch (srb->cmnd[0]) {
@@ -292,12 +290,12 @@ int freecom_transport(struct scsi_cmnd *srb, struct us_data *us)
length = le16_to_cpu(fst->Count);
break;
default:
- length = srb->request_bufflen;
+ length = scsi_bufflen(srb);
}
/* verify that this amount is legal */
- if (length > srb->request_bufflen) {
- length = srb->request_bufflen;
+ if (length > scsi_bufflen(srb)) {
+ length = scsi_bufflen(srb);
US_DEBUGP("Truncating request to match buffer length: %d\n", length);
}
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 49ba6c0ff1e8..178e8c2a8a2f 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -49,6 +49,7 @@
#include <linux/slab.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
+#include <linux/scatterlist.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@@ -287,6 +288,7 @@ struct isd200_info {
/* maximum number of LUNs supported */
unsigned char MaxLUNs;
struct scsi_cmnd srb;
+ struct scatterlist sg;
};
@@ -398,6 +400,31 @@ static void isd200_build_sense(struct us_data *us, struct scsi_cmnd *srb)
* Transport routines
***********************************************************************/
+/**************************************************************************
+ * isd200_set_srb(), isd200_srb_set_bufflen()
+ *
+ * Two helpers to facilitate in initialization of scsi_cmnd structure
+ * Will need to change when struct scsi_cmnd changes
+ */
+static void isd200_set_srb(struct isd200_info *info,
+ enum dma_data_direction dir, void* buff, unsigned bufflen)
+{
+ struct scsi_cmnd *srb = &info->srb;
+
+ if (buff)
+ sg_init_one(&info->sg, buff, bufflen);
+
+ srb->sc_data_direction = dir;
+ srb->request_buffer = buff ? &info->sg : NULL;
+ srb->request_bufflen = bufflen;
+ srb->use_sg = buff ? 1 : 0;
+}
+
+static void isd200_srb_set_bufflen(struct scsi_cmnd *srb, unsigned bufflen)
+{
+ srb->request_bufflen = bufflen;
+}
+
/**************************************************************************
* isd200_action
@@ -432,9 +459,7 @@ static int isd200_action( struct us_data *us, int action,
ata.generic.RegisterSelect =
REG_CYLINDER_LOW | REG_CYLINDER_HIGH |
REG_STATUS | REG_ERROR;
- srb->sc_data_direction = DMA_FROM_DEVICE;
- srb->request_buffer = pointer;
- srb->request_bufflen = value;
+ isd200_set_srb(info, DMA_FROM_DEVICE, pointer, value);
break;
case ACTION_ENUM:
@@ -444,7 +469,7 @@ static int isd200_action( struct us_data *us, int action,
ACTION_SELECT_5;
ata.generic.RegisterSelect = REG_DEVICE_HEAD;
ata.write.DeviceHeadByte = value;
- srb->sc_data_direction = DMA_NONE;
+ isd200_set_srb(info, DMA_NONE, NULL, 0);
break;
case ACTION_RESET:
@@ -453,7 +478,7 @@ static int isd200_action( struct us_data *us, int action,
ACTION_SELECT_3|ACTION_SELECT_4;
ata.generic.RegisterSelect = REG_DEVICE_CONTROL;
ata.write.DeviceControlByte = ATA_DC_RESET_CONTROLLER;
- srb->sc_data_direction = DMA_NONE;
+ isd200_set_srb(info, DMA_NONE, NULL, 0);
break;
case ACTION_REENABLE:
@@ -462,7 +487,7 @@ static int isd200_action( struct us_data *us, int action,
ACTION_SELECT_3|ACTION_SELECT_4;
ata.generic.RegisterSelect = REG_DEVICE_CONTROL;
ata.write.DeviceControlByte = ATA_DC_REENABLE_CONTROLLER;
- srb->sc_data_direction = DMA_NONE;
+ isd200_set_srb(info, DMA_NONE, NULL, 0);
break;
case ACTION_SOFT_RESET:
@@ -471,21 +496,20 @@ static int isd200_action( struct us_data *us, int action,
ata.generic.RegisterSelect = REG_DEVICE_HEAD | REG_COMMAND;
ata.write.DeviceHeadByte = info->DeviceHead;
ata.write.CommandByte = WIN_SRST;
- srb->sc_data_direction = DMA_NONE;
+ isd200_set_srb(info, DMA_NONE, NULL, 0);
break;
case ACTION_IDENTIFY:
US_DEBUGP(" isd200_action(IDENTIFY)\n");
ata.generic.RegisterSelect = REG_COMMAND;
ata.write.CommandByte = WIN_IDENTIFY;
- srb->sc_data_direction = DMA_FROM_DEVICE;
- srb->request_buffer = (void *) info->id;
- srb->request_bufflen = sizeof(struct hd_driveid);
+ isd200_set_srb(info, DMA_FROM_DEVICE, info->id,
+ sizeof(struct hd_driveid));
break;
default:
US_DEBUGP("Error: Undefined action %d\n",action);
- break;
+ return ISD200_ERROR;
}
memcpy(srb->cmnd, &ata, sizeof(ata.generic));
@@ -590,7 +614,7 @@ static void isd200_invoke_transport( struct us_data *us,
return;
}
- if ((srb->resid > 0) &&
+ if ((scsi_get_resid(srb) > 0) &&
!((srb->cmnd[0] == REQUEST_SENSE) ||
(srb->cmnd[0] == INQUIRY) ||
(srb->cmnd[0] == MODE_SENSE) ||
@@ -1217,7 +1241,6 @@ static int isd200_get_inquiry_data( struct us_data *us )
return(retStatus);
}
-
/**************************************************************************
* isd200_scsi_to_ata
*
@@ -1266,7 +1289,7 @@ static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us,
ataCdb->generic.TransferBlockSize = 1;
ataCdb->generic.RegisterSelect = REG_COMMAND;
ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS;
- srb->request_bufflen = 0;
+ isd200_srb_set_bufflen(srb, 0);
} else {
US_DEBUGP(" Media Status not supported, just report okay\n");
srb->result = SAM_STAT_GOOD;
@@ -1284,7 +1307,7 @@ static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us,
ataCdb->generic.TransferBlockSize = 1;
ataCdb->generic.RegisterSelect = REG_COMMAND;
ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS;
- srb->request_bufflen = 0;
+ isd200_srb_set_bufflen(srb, 0);
} else {
US_DEBUGP(" Media Status not supported, just report okay\n");
srb->result = SAM_STAT_GOOD;
@@ -1390,7 +1413,7 @@ static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us,
ataCdb->generic.RegisterSelect = REG_COMMAND;
ataCdb->write.CommandByte = (srb->cmnd[4] & 0x1) ?
WIN_DOORLOCK : WIN_DOORUNLOCK;
- srb->request_bufflen = 0;
+ isd200_srb_set_bufflen(srb, 0);
} else {
US_DEBUGP(" Not removeable media, just report okay\n");
srb->result = SAM_STAT_GOOD;
@@ -1416,7 +1439,7 @@ static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us,
ataCdb->generic.TransferBlockSize = 1;
ataCdb->generic.RegisterSelect = REG_COMMAND;
ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS;
- srb->request_bufflen = 0;
+ isd200_srb_set_bufflen(srb, 0);
} else {
US_DEBUGP(" Nothing to do, just report okay\n");
srb->result = SAM_STAT_GOOD;
@@ -1525,7 +1548,7 @@ int isd200_Initialization(struct us_data *us)
void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us)
{
- int sendToTransport = 1;
+ int sendToTransport = 1, orig_bufflen;
union ata_cdb ataCdb;
/* Make sure driver was initialized */
@@ -1533,11 +1556,14 @@ void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us)
if (us->extra == NULL)
US_DEBUGP("ERROR Driver not initialized\n");
- /* Convert command */
- srb->resid = 0;
+ scsi_set_resid(srb, 0);
+ /* scsi_bufflen might change in protocol translation to ata */
+ orig_bufflen = scsi_bufflen(srb);
sendToTransport = isd200_scsi_to_ata(srb, us, &ataCdb);
/* send the command to the transport layer */
if (sendToTransport)
isd200_invoke_transport(us, srb, &ataCdb);
+
+ isd200_srb_set_bufflen(srb, orig_bufflen);
}
diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c
index 889622baac20..a41ce21c0697 100644
--- a/drivers/usb/storage/protocol.c
+++ b/drivers/usb/storage/protocol.c
@@ -149,11 +149,7 @@ void usb_stor_transparent_scsi_command(struct scsi_cmnd *srb,
***********************************************************************/
/* Copy a buffer of length buflen to/from the srb's transfer buffer.
- * (Note: for scatter-gather transfers (srb->use_sg > 0), srb->request_buffer
- * points to a list of s-g entries and we ignore srb->request_bufflen.
- * For non-scatter-gather transfers, srb->request_buffer points to the
- * transfer buffer itself and srb->request_bufflen is the buffer's length.)
- * Update the *index and *offset variables so that the next copy will
+ * Update the **sgptr and *offset variables so that the next copy will
* pick up from where this one left off. */
unsigned int usb_stor_access_xfer_buf(unsigned char *buffer,
@@ -162,80 +158,64 @@ unsigned int usb_stor_access_xfer_buf(unsigned char *buffer,
{
unsigned int cnt;
- /* If not using scatter-gather, just transfer the data directly.
- * Make certain it will fit in the available buffer space. */
- if (srb->use_sg == 0) {
- if (*offset >= srb->request_bufflen)
- return 0;
- cnt = min(buflen, srb->request_bufflen - *offset);
- if (dir == TO_XFER_BUF)
- memcpy((unsigned char *) srb->request_buffer + *offset,
- buffer, cnt);
- else
- memcpy(buffer, (unsigned char *) srb->request_buffer +
- *offset, cnt);
- *offset += cnt;
-
- /* Using scatter-gather. We have to go through the list one entry
+ /* We have to go through the list one entry
* at a time. Each s-g entry contains some number of pages, and
* each page has to be kmap()'ed separately. If the page is already
* in kernel-addressable memory then kmap() will return its address.
* If the page is not directly accessible -- such as a user buffer
* located in high memory -- then kmap() will map it to a temporary
* position in the kernel's virtual address space. */
- } else {
- struct scatterlist *sg = *sgptr;
-
- if (!sg)
- sg = (struct scatterlist *) srb->request_buffer;
-
- /* This loop handles a single s-g list entry, which may
- * include multiple pages. Find the initial page structure
- * and the starting offset within the page, and update
- * the *offset and *index values for the next loop. */
- cnt = 0;
- while (cnt < buflen) {
- struct page *page = sg_page(sg) +
- ((sg->offset + *offset) >> PAGE_SHIFT);
- unsigned int poff =
- (sg->offset + *offset) & (PAGE_SIZE-1);
- unsigned int sglen = sg->length - *offset;
-
- if (sglen > buflen - cnt) {
-
- /* Transfer ends within this s-g entry */
- sglen = buflen - cnt;
- *offset += sglen;
- } else {
-
- /* Transfer continues to next s-g entry */
- *offset = 0;
- sg = sg_next(sg);
- }
-
- /* Transfer the data for all the pages in this
- * s-g entry. For each page: call kmap(), do the
- * transfer, and call kunmap() immediately after. */
- while (sglen > 0) {
- unsigned int plen = min(sglen, (unsigned int)
- PAGE_SIZE - poff);
- unsigned char *ptr = kmap(page);
-
- if (dir == TO_XFER_BUF)
- memcpy(ptr + poff, buffer + cnt, plen);
- else
- memcpy(buffer + cnt, ptr + poff, plen);
- kunmap(page);
-
- /* Start at the beginning of the next page */
- poff = 0;
- ++page;
- cnt += plen;
- sglen -= plen;
- }
+ struct scatterlist *sg = *sgptr;
+
+ if (!sg)
+ sg = scsi_sglist(srb);
+
+ /* This loop handles a single s-g list entry, which may
+ * include multiple pages. Find the initial page structure
+ * and the starting offset within the page, and update
+ * the *offset and **sgptr values for the next loop. */
+ cnt = 0;
+ while (cnt < buflen) {
+ struct page *page = sg_page(sg) +
+ ((sg->offset + *offset) >> PAGE_SHIFT);
+ unsigned int poff =
+ (sg->offset + *offset) & (PAGE_SIZE-1);
+ unsigned int sglen = sg->length - *offset;
+
+ if (sglen > buflen - cnt) {
+
+ /* Transfer ends within this s-g entry */
+ sglen = buflen - cnt;
+ *offset += sglen;
+ } else {
+
+ /* Transfer continues to next s-g entry */
+ *offset = 0;
+ sg = sg_next(sg);
+ }
+
+ /* Transfer the data for all the pages in this
+ * s-g entry. For each page: call kmap(), do the
+ * transfer, and call kunmap() immediately after. */
+ while (sglen > 0) {
+ unsigned int plen = min(sglen, (unsigned int)
+ PAGE_SIZE - poff);
+ unsigned char *ptr = kmap(page);
+
+ if (dir == TO_XFER_BUF)
+ memcpy(ptr + poff, buffer + cnt, plen);
+ else
+ memcpy(buffer + cnt, ptr + poff, plen);
+ kunmap(page);
+
+ /* Start at the beginning of the next page */
+ poff = 0;
+ ++page;
+ cnt += plen;
+ sglen -= plen;
}
- *sgptr = sg;
}
+ *sgptr = sg;
/* Return the amount actually transferred */
return cnt;
@@ -251,6 +231,6 @@ void usb_stor_set_xfer_buf(unsigned char *buffer,
usb_stor_access_xfer_buf(buffer, buflen, srb, &sg, &offset,
TO_XFER_BUF);
- if (buflen < srb->request_bufflen)
- srb->resid = srb->request_bufflen - buflen;
+ if (buflen < scsi_bufflen(srb))
+ scsi_set_resid(srb, scsi_bufflen(srb) - buflen);
}
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 7c9593b7b04e..8c1e2954f3b9 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -81,6 +81,16 @@ static int slave_alloc (struct scsi_device *sdev)
*/
sdev->inquiry_len = 36;
+ /* Scatter-gather buffers (all but the last) must have a length
+ * divisible by the bulk maxpacket size. Otherwise a data packet
+ * would end up being short, causing a premature end to the data
+ * transfer. Since high-speed bulk pipes have a maxpacket size
+ * of 512, we'll use that as the scsi device queue's DMA alignment
+ * mask. Guaranteeing proper alignment of the first buffer will
+ * have the desired effect because, except at the beginning and
+ * the end, scatter-gather buffers follow page boundaries. */
+ blk_queue_update_dma_alignment(sdev->request_queue, (512 - 1));
+
/*
* The UFI spec treates the Peripheral Qualifier bits in an
* INQUIRY result as reserved and requires devices to set them
@@ -100,16 +110,6 @@ static int slave_configure(struct scsi_device *sdev)
{
struct us_data *us = host_to_us(sdev->host);
- /* Scatter-gather buffers (all but the last) must have a length
- * divisible by the bulk maxpacket size. Otherwise a data packet
- * would end up being short, causing a premature end to the data
- * transfer. Since high-speed bulk pipes have a maxpacket size
- * of 512, we'll use that as the scsi device queue's DMA alignment
- * mask. Guaranteeing proper alignment of the first buffer will
- * have the desired effect because, except at the beginning and
- * the end, scatter-gather buffers follow page boundaries. */
- blk_queue_dma_alignment(sdev->request_queue, (512 - 1));
-
/* Many devices have trouble transfering more than 32KB at a time,
* while others have trouble with more than 64K. At this time we
* are limiting both to 32K (64 sectores).
@@ -187,6 +187,10 @@ static int slave_configure(struct scsi_device *sdev)
* automatically, requiring a START-STOP UNIT command. */
sdev->allow_restart = 1;
+ /* Some USB cardreaders have trouble reading an sdcard's last
+ * sector in a larger then 1 sector read, since the performance
+ * impact is negible we set this flag for all USB disks */
+ sdev->last_sector_bug = 1;
} else {
/* Non-disk-type devices don't need to blacklist any pages
diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c
index b12202c5da2d..8972b17da843 100644
--- a/drivers/usb/storage/sddr09.c
+++ b/drivers/usb/storage/sddr09.c
@@ -1623,7 +1623,7 @@ int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us)
return USB_STOR_TRANSPORT_ERROR;
}
- if (srb->request_bufflen == 0)
+ if (scsi_bufflen(srb) == 0)
return USB_STOR_TRANSPORT_GOOD;
if (srb->sc_data_direction == DMA_TO_DEVICE ||
@@ -1634,12 +1634,9 @@ int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us)
US_DEBUGP("SDDR09: %s %d bytes\n",
(srb->sc_data_direction == DMA_TO_DEVICE) ?
"sending" : "receiving",
- srb->request_bufflen);
+ scsi_bufflen(srb));
- result = usb_stor_bulk_transfer_sg(us, pipe,
- srb->request_buffer,
- srb->request_bufflen,
- srb->use_sg, &srb->resid);
+ result = usb_stor_bulk_srb(us, pipe, srb);
return (result == USB_STOR_XFER_GOOD ?
USB_STOR_TRANSPORT_GOOD : USB_STOR_TRANSPORT_ERROR);
diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c
index cb22a9ad1694..570c1250f6f3 100644
--- a/drivers/usb/storage/shuttle_usbat.c
+++ b/drivers/usb/storage/shuttle_usbat.c
@@ -130,7 +130,7 @@ static int usbat_write(struct us_data *us,
* Convenience function to perform a bulk read
*/
static int usbat_bulk_read(struct us_data *us,
- unsigned char *data,
+ void* buf,
unsigned int len,
int use_sg)
{
@@ -138,14 +138,14 @@ static int usbat_bulk_read(struct us_data *us,
return USB_STOR_XFER_GOOD;
US_DEBUGP("usbat_bulk_read: len = %d\n", len);
- return usb_stor_bulk_transfer_sg(us, us->recv_bulk_pipe, data, len, use_sg, NULL);
+ return usb_stor_bulk_transfer_sg(us, us->recv_bulk_pipe, buf, len, use_sg, NULL);
}
/*
* Convenience function to perform a bulk write
*/
static int usbat_bulk_write(struct us_data *us,
- unsigned char *data,
+ void* buf,
unsigned int len,
int use_sg)
{
@@ -153,7 +153,7 @@ static int usbat_bulk_write(struct us_data *us,
return USB_STOR_XFER_GOOD;
US_DEBUGP("usbat_bulk_write: len = %d\n", len);
- return usb_stor_bulk_transfer_sg(us, us->send_bulk_pipe, data, len, use_sg, NULL);
+ return usb_stor_bulk_transfer_sg(us, us->send_bulk_pipe, buf, len, use_sg, NULL);
}
/*
@@ -314,7 +314,7 @@ static int usbat_wait_not_busy(struct us_data *us, int minutes)
* Read block data from the data register
*/
static int usbat_read_block(struct us_data *us,
- unsigned char *content,
+ void* buf,
unsigned short len,
int use_sg)
{
@@ -337,7 +337,7 @@ static int usbat_read_block(struct us_data *us,
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
- result = usbat_bulk_read(us, content, len, use_sg);
+ result = usbat_bulk_read(us, buf, len, use_sg);
return (result == USB_STOR_XFER_GOOD ?
USB_STOR_TRANSPORT_GOOD : USB_STOR_TRANSPORT_ERROR);
}
@@ -347,7 +347,7 @@ static int usbat_read_block(struct us_data *us,
*/
static int usbat_write_block(struct us_data *us,
unsigned char access,
- unsigned char *content,
+ void* buf,
unsigned short len,
int minutes,
int use_sg)
@@ -372,7 +372,7 @@ static int usbat_write_block(struct us_data *us,
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
- result = usbat_bulk_write(us, content, len, use_sg);
+ result = usbat_bulk_write(us, buf, len, use_sg);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
@@ -392,7 +392,7 @@ static int usbat_hp8200e_rw_block_test(struct us_data *us,
unsigned char timeout,
unsigned char qualifier,
int direction,
- unsigned char *content,
+ void *buf,
unsigned short len,
int use_sg,
int minutes)
@@ -472,7 +472,7 @@ static int usbat_hp8200e_rw_block_test(struct us_data *us,
}
result = usb_stor_bulk_transfer_sg(us,
- pipe, content, len, use_sg, NULL);
+ pipe, buf, len, use_sg, NULL);
/*
* If we get a stall on the bulk download, we'll retry
@@ -606,7 +606,7 @@ static int usbat_multiple_write(struct us_data *us,
* other related details) are defined beforehand with _set_shuttle_features().
*/
static int usbat_read_blocks(struct us_data *us,
- unsigned char *buffer,
+ void* buffer,
int len,
int use_sg)
{
@@ -648,7 +648,7 @@ static int usbat_read_blocks(struct us_data *us,
* other related details) are defined beforehand with _set_shuttle_features().
*/
static int usbat_write_blocks(struct us_data *us,
- unsigned char *buffer,
+ void* buffer,
int len,
int use_sg)
{
@@ -1170,15 +1170,15 @@ static int usbat_hp8200e_handle_read10(struct us_data *us,
US_DEBUGP("handle_read10: transfersize %d\n",
srb->transfersize);
- if (srb->request_bufflen < 0x10000) {
+ if (scsi_bufflen(srb) < 0x10000) {
result = usbat_hp8200e_rw_block_test(us, USBAT_ATA,
registers, data, 19,
USBAT_ATA_DATA, USBAT_ATA_STATUS, 0xFD,
(USBAT_QUAL_FCQ | USBAT_QUAL_ALQ),
DMA_FROM_DEVICE,
- srb->request_buffer,
- srb->request_bufflen, srb->use_sg, 1);
+ scsi_sglist(srb),
+ scsi_bufflen(srb), scsi_sg_count(srb), 1);
return result;
}
@@ -1196,7 +1196,7 @@ static int usbat_hp8200e_handle_read10(struct us_data *us,
len <<= 16;
len |= data[7+7];
US_DEBUGP("handle_read10: GPCMD_READ_CD: len %d\n", len);
- srb->transfersize = srb->request_bufflen/len;
+ srb->transfersize = scsi_bufflen(srb)/len;
}
if (!srb->transfersize) {
@@ -1213,7 +1213,7 @@ static int usbat_hp8200e_handle_read10(struct us_data *us,
len = (65535/srb->transfersize) * srb->transfersize;
US_DEBUGP("Max read is %d bytes\n", len);
- len = min(len, srb->request_bufflen);
+ len = min(len, scsi_bufflen(srb));
buffer = kmalloc(len, GFP_NOIO);
if (buffer == NULL) /* bloody hell! */
return USB_STOR_TRANSPORT_FAILED;
@@ -1222,10 +1222,10 @@ static int usbat_hp8200e_handle_read10(struct us_data *us,
sector |= short_pack(data[7+5], data[7+4]);
transferred = 0;
- while (transferred != srb->request_bufflen) {
+ while (transferred != scsi_bufflen(srb)) {
- if (len > srb->request_bufflen - transferred)
- len = srb->request_bufflen - transferred;
+ if (len > scsi_bufflen(srb) - transferred)
+ len = scsi_bufflen(srb) - transferred;
data[3] = len&0xFF; /* (cylL) = expected length (L) */
data[4] = (len>>8)&0xFF; /* (cylH) = expected length (H) */
@@ -1261,7 +1261,7 @@ static int usbat_hp8200e_handle_read10(struct us_data *us,
transferred += len;
sector += len / srb->transfersize;
- } /* while transferred != srb->request_bufflen */
+ } /* while transferred != scsi_bufflen(srb) */
kfree(buffer);
return result;
@@ -1429,9 +1429,8 @@ static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us)
unsigned char data[32];
unsigned int len;
int i;
- char string[64];
- len = srb->request_bufflen;
+ len = scsi_bufflen(srb);
/* Send A0 (ATA PACKET COMMAND).
Note: I guess we're never going to get any of the ATA
@@ -1472,8 +1471,8 @@ static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us)
USBAT_ATA_DATA, USBAT_ATA_STATUS, 0xFD,
(USBAT_QUAL_FCQ | USBAT_QUAL_ALQ),
DMA_TO_DEVICE,
- srb->request_buffer,
- len, srb->use_sg, 10);
+ scsi_sglist(srb),
+ len, scsi_sg_count(srb), 10);
if (result == USB_STOR_TRANSPORT_GOOD) {
transferred += len;
@@ -1540,23 +1539,8 @@ static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us)
len = *status;
- result = usbat_read_block(us, srb->request_buffer, len, srb->use_sg);
-
- /* Debug-print the first 32 bytes of the transfer */
-
- if (!srb->use_sg) {
- string[0] = 0;
- for (i=0; i<len && i<32; i++) {
- sprintf(string+strlen(string), "%02X ",
- ((unsigned char *)srb->request_buffer)[i]);
- if ((i%16)==15) {
- US_DEBUGP("%s\n", string);
- string[0] = 0;
- }
- }
- if (string[0]!=0)
- US_DEBUGP("%s\n", string);
- }
+ result = usbat_read_block(us, scsi_sglist(srb), len,
+ scsi_sg_count(srb));
}
return result;
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index c646750ccc30..d9f4912f873d 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));
}
}
diff --git a/drivers/usb/storage/transport.h b/drivers/usb/storage/transport.h
index 633a715850a4..ada7c2f43f84 100644
--- a/drivers/usb/storage/transport.h
+++ b/drivers/usb/storage/transport.h
@@ -139,6 +139,8 @@ extern int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,
void *buf, unsigned int length, unsigned int *act_len);
extern int usb_stor_bulk_transfer_sg(struct us_data *us, unsigned int pipe,
void *buf, unsigned int length, int use_sg, int *residual);
+extern int usb_stor_bulk_srb(struct us_data* us, unsigned int pipe,
+ struct scsi_cmnd* srb);
extern int usb_stor_port_reset(struct us_data *us);
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 18:45:30 +0100