[PATCH] I2O: new sysfs attributes and Adaptec specific block device access and 64-bit DMA support
Changes:
- Added Bus-OSM which could be used by user space programs to reset a
channel on the controller
- Make ioctl's in Config-OSM obsolete in prefer for sysfs attributes and
move those to its own file
- Added sysfs attribute for firmware read and write access for I2O
controllers
- Added special handling of firmware read and write access for Adaptec
controllers
- Added vendor id and product id as sysfs-attribute to Executive classes
- Added automatic notification of LCT change handling to Exec-OSM
- Added flushing function to Block-OSM for later barrier implementation
- Use PRIVATE messages for Block access on Adaptec controllers, which are
faster then BLOCK class access
- Cleaned up support for Promise controller
- New messages are now detected using the IRQ status register as
suggested by the I2O spec
- Added i2o_dma_high() and i2o_dma_low() functions
- Added facility for SG tablesize calculation when using 32-bit and
64-bit DMA addresses
- Added i2o_dma_map_single() and i2o_dma_map_sg() which could build the
SG list for 32-bit as well as 64-bit DMA addresses
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/message/i2o/i2o_scsi.c b/drivers/message/i2o/i2o_scsi.c
index 812c29e..c3b0c29 100644
--- a/drivers/message/i2o/i2o_scsi.c
+++ b/drivers/message/i2o/i2o_scsi.c
@@ -103,7 +103,7 @@
i2o_status_block *sb;
list_for_each_entry(i2o_dev, &c->devices, list)
- if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT) {
+ if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER) {
if (i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1)
&& (type == 0x01)) /* SCSI bus */
max_channel++;
@@ -139,7 +139,7 @@
i = 0;
list_for_each_entry(i2o_dev, &c->devices, list)
- if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT) {
+ if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER) {
if (i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1) || (type == 1)) /* only SCSI bus */
i2o_shost->channel[i++] = i2o_dev;
@@ -186,6 +186,7 @@
shost_for_each_device(scsi_dev, i2o_shost->scsi_host)
if (scsi_dev->hostdata == i2o_dev) {
+ sysfs_remove_link(&i2o_dev->device.kobj, "scsi");
scsi_remove_device(scsi_dev);
scsi_device_put(scsi_dev);
break;
@@ -259,12 +260,14 @@
scsi_dev =
__scsi_add_device(i2o_shost->scsi_host, channel, id, lun, i2o_dev);
- if (!scsi_dev) {
+ if (IS_ERR(scsi_dev)) {
osm_warn("can not add SCSI device %03x\n",
i2o_dev->lct_data.tid);
- return -EFAULT;
+ return PTR_ERR(scsi_dev);
}
+ sysfs_create_link(&i2o_dev->device.kobj, &scsi_dev->sdev_gendev.kobj, "scsi");
+
osm_info("device added (TID: %03x) channel: %d, id: %d, lun: %d\n",
i2o_dev->lct_data.tid, channel, id, (unsigned int)lun);
@@ -545,7 +548,13 @@
int tid;
struct i2o_message __iomem *msg;
u32 m;
- u32 scsi_flags, sg_flags;
+ /*
+ * ENABLE_DISCONNECT
+ * SIMPLE_TAG
+ * RETURN_SENSE_DATA_IN_REPLY_MESSAGE_FRAME
+ */
+ u32 scsi_flags = 0x20a00000;
+ u32 sg_flags;
u32 __iomem *mptr;
u32 __iomem *lenptr;
u32 len;
@@ -591,17 +600,19 @@
switch (SCpnt->sc_data_direction) {
case PCI_DMA_NONE:
- scsi_flags = 0x00000000; // DATA NO XFER
+ /* DATA NO XFER */
sg_flags = 0x00000000;
break;
case PCI_DMA_TODEVICE:
- scsi_flags = 0x80000000; // DATA OUT (iop-->dev)
+ /* DATA OUT (iop-->dev) */
+ scsi_flags |= 0x80000000;
sg_flags = 0x14000000;
break;
case PCI_DMA_FROMDEVICE:
- scsi_flags = 0x40000000; // DATA IN (iop<--dev)
+ /* DATA IN (iop<--dev) */
+ scsi_flags |= 0x40000000;
sg_flags = 0x10000000;
break;
@@ -639,8 +650,7 @@
}
*/
- /* Direction, disconnect ok, tag, CDBLen */
- writel(scsi_flags | 0x20200000 | SCpnt->cmd_len, mptr ++);
+ writel(scsi_flags | SCpnt->cmd_len, mptr++);
/* Write SCSI command into the message - always 16 byte block */
memcpy_toio(mptr, SCpnt->cmnd, 16);