[SCSI] fusion - Greater than 255 target and lun support
Add support for greater than 255 target and luns.
Kill the hd->Target[] field, and change all references
of bus_id/target_id, to channel/id.
Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index b3f28a0..a07f0f8 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -82,6 +82,10 @@
module_param(mpt_msi_enable, int, 0);
MODULE_PARM_DESC(mpt_msi_enable, " MSI Support Enable (default=0)");
+static int mpt_channel_mapping;
+module_param(mpt_channel_mapping, int, 0);
+MODULE_PARM_DESC(mpt_channel_mapping, " Mapping id's to channels (default=0)");
+
#ifdef MFCNT
static int mfcounter = 0;
#define PRINT_MF_COUNT 20000
@@ -2505,6 +2509,7 @@
int ii;
int req_sz;
int reply_sz;
+ int max_id;
/* IOC *must* NOT be in RESET state! */
if (ioc->last_state == MPI_IOC_STATE_RESET) {
@@ -2552,6 +2557,21 @@
pfacts->MaxPersistentIDs = le16_to_cpu(pfacts->MaxPersistentIDs);
pfacts->MaxLanBuckets = le16_to_cpu(pfacts->MaxLanBuckets);
+ max_id = (ioc->bus_type == SAS) ? pfacts->PortSCSIID :
+ pfacts->MaxDevices;
+ ioc->devices_per_bus = (max_id > 255) ? 256 : max_id;
+ ioc->number_of_buses = (ioc->devices_per_bus < 256) ? 1 : max_id/256;
+
+ /*
+ * Place all the devices on channels
+ *
+ * (for debuging)
+ */
+ if (mpt_channel_mapping) {
+ ioc->devices_per_bus = 1;
+ ioc->number_of_buses = (max_id > 255) ? 255 : max_id;
+ }
+
return 0;
}
@@ -2592,13 +2612,8 @@
ddlprintk((MYIOC_s_INFO_FMT "upload_fw %d facts.Flags=%x\n",
ioc->name, ioc->upload_fw, ioc->facts.Flags));
- if(ioc->bus_type == SAS)
- ioc_init.MaxDevices = ioc->facts.MaxDevices;
- else if(ioc->bus_type == FC)
- ioc_init.MaxDevices = MPT_MAX_FC_DEVICES;
- else
- ioc_init.MaxDevices = MPT_MAX_SCSI_DEVICES;
- ioc_init.MaxBuses = MPT_MAX_BUS;
+ ioc_init.MaxDevices = (U8)ioc->devices_per_bus;
+ ioc_init.MaxBuses = (U8)ioc->number_of_buses;
dinitprintk((MYIOC_s_INFO_FMT "facts.MsgVersion=%x\n",
ioc->name, ioc->facts.MsgVersion));
if (ioc->facts.MsgVersion >= MPI_VERSION_01_05) {