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[SCSI] aacraid: Newer adapter communication iterface support

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Received from Mark Salyzyn.

This patch adds the 'new comm' interface, which modern AAC based
adapters that are less than a year old support in the name of much
improved performance. These modern adapters support both the legacy and
the 'new comm' interfaces.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Mark Haverkamp
2005-10-24 10:52:22 -07:00
committed by James Bottomley
parent 38a9a621ab
commit 8e0c5ebde8
11 changed files with 453 additions and 218 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/scsi/aacraid/comminit.c
+25
View File
@@ -116,6 +116,10 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
}
init->InitFlags = 0;
if (dev->new_comm_interface) {
init->InitFlags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED);
dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n"));
}
init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB);
init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9);
init->MaxFibSize = cpu_to_le32(dev->max_fib_size);
@@ -315,12 +319,33 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
- sizeof(struct aac_fibhdr)
- sizeof(struct aac_write) + sizeof(struct sgentry))
/ sizeof(struct sgentry);
dev->new_comm_interface = 0;
dev->raw_io_64 = 0;
if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
(status[0] == 0x00000001)) {
if (status[1] & AAC_OPT_NEW_COMM_64)
dev->raw_io_64 = 1;
if (status[1] & AAC_OPT_NEW_COMM)
dev->new_comm_interface = dev->a_ops.adapter_send != 0;
if (dev->new_comm_interface && (status[2] > dev->base_size)) {
iounmap(dev->regs.sa);
dev->base_size = status[2];
dprintk((KERN_DEBUG "ioremap(%lx,%d)\n",
host->base, status[2]));
dev->regs.sa = ioremap(host->base, status[2]);
if (dev->regs.sa == NULL) {
/* remap failed, go back ... */
dev->new_comm_interface = 0;
dev->regs.sa = ioremap(host->base,
AAC_MIN_FOOTPRINT_SIZE);
if (dev->regs.sa == NULL) {
printk(KERN_WARNING
"aacraid: unable to map adapter.\n");
return NULL;
}
}
}
}
if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
0, 0, 0, 0, 0, 0,