[PATCH] I2O: Adaptec specific SG_IO access, firmware access through sysfs and 2400A workaround
Changes:
- Provide SG_IO access to BLOCK and EXECUTIVE class on Adaptec
controllers
- Use PRIVATE messages in SCSI-OSM because on some controllers normal
SCSI class commands like READ or READ CAPACITY cause errors
- Use new DMA and SG list creation function
- Added workaround to limit sectors per request for Adaptec 2400A
controllers
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/pci.c b/drivers/message/i2o/pci.c
index a499af0..964fe48 100644
--- a/drivers/message/i2o/pci.c
+++ b/drivers/message/i2o/pci.c
@@ -362,11 +362,33 @@
c->promise = 1;
}
+ if (pdev->subsystem_vendor == PCI_VENDOR_ID_DPT)
+ c->adaptec = 1;
+
/* Cards that go bananas if you quiesce them before you reset them. */
if (pdev->vendor == PCI_VENDOR_ID_DPT) {
c->no_quiesce = 1;
if (pdev->device == 0xa511)
c->raptor = 1;
+
+ if (pdev->subsystem_device == 0xc05a) {
+ c->limit_sectors = 1;
+ printk(KERN_INFO
+ "%s: limit sectors per request to %d\n", c->name,
+ I2O_MAX_SECTORS_LIMITED);
+ }
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+ if (sizeof(dma_addr_t) > 4) {
+ if (pci_set_dma_mask(pdev, DMA_64BIT_MASK))
+ printk(KERN_INFO "%s: 64-bit DMA unavailable\n",
+ c->name);
+ else {
+ c->pae_support = 1;
+ printk(KERN_INFO "%s: using 64-bit DMA\n",
+ c->name);
+ }
+ }
+#endif
}
if ((rc = i2o_pci_alloc(c))) {
