isci: Intel(R) C600 Series Chipset Storage Control Unit Driver

Support for the up to 2x4-port 6Gb/s SAS controllers embedded in the
chipset.

This is a snapshot of the first publicly available version of the driver,
commit 4c1db2d0 in the 'historical' branch.

   git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git historical

Signed-off-by: Maciej Trela <[email protected]>
Signed-off-by: Dave Jiang <[email protected]>
Signed-off-by: Edmund Nadolski <[email protected]>
Signed-off-by: Dan Williams <[email protected]>

drivers/scsi/Kconfig

@@ -830,6 +830,40 @@ config SCSI_GDTH
 	  To compile this driver as a module, choose M here: the
 	  module will be called gdth.
 
+config SCSI_ISCI
+	tristate "Intel(R) C600 Series Chipset SAS Controller"
+	depends on PCI && SCSI
+	# little endian host assumptions
+	depends on X86
+	# (temporary): dma api misuse
+	depends on !DMAR
+	# (temporary): known alpha quality driver
+	depends on EXPERIMENTAL
+	select SCSI_SAS_LIBSAS
+	---help---
+	  This driver supports the 6Gb/s SAS capabilities of the storage
+	  control unit found in the Intel(R) C600 series chipset.
+
+	  The experimental tag will be removed after the driver exits alpha
+
+choice
+	prompt "Default Silicon Revision"
+	depends on SCSI_ISCI
+	default PBG_HBA_A2
+	# temporary A-step silicon is pre-production
+
+config PBG_HBA_BETA
+	bool "B0"
+
+config PBG_HBA_A2
+	bool "A2"
+
+config PBG_HBA_A0
+	bool "A0"
+
+endchoice
+
+
 config SCSI_GENERIC_NCR5380
 	tristate "Generic NCR5380/53c400 SCSI PIO support"
 	depends on ISA && SCSI

drivers/scsi/Makefile

@@ -73,6 +73,7 @@ obj-$(CONFIG_SCSI_AACRAID)	+= aacraid/
 obj-$(CONFIG_SCSI_AIC7XXX_OLD)	+= aic7xxx_old.o
 obj-$(CONFIG_SCSI_AIC94XX)	+= aic94xx/
 obj-$(CONFIG_SCSI_PM8001)	+= pm8001/
+obj-$(CONFIG_SCSI_ISCI)		+= isci/
 obj-$(CONFIG_SCSI_IPS)		+= ips.o
 obj-$(CONFIG_SCSI_FD_MCS)	+= fd_mcs.o
 obj-$(CONFIG_SCSI_FUTURE_DOMAIN)+= fdomain.o

drivers/scsi/isci/Makefile

@@ -0,0 +1,30 @@
+#TODO kill SCIC_SDS_4_ENABLED it is always true for this
+#generation of silicon
+EXTRA_CFLAGS += -DSCIC_SDS_4_ENABLED
+
+#temporary until atapi support ready
+EXTRA_CFLAGS += -DDISABLE_ATAPI
+
+EXTRA_CFLAGS += -Idrivers/scsi/isci/core/ -Idrivers/scsi/isci/
+obj-$(CONFIG_SCSI_ISCI) += isci.o
+isci-objs := init.o phy.o request.o sata.o \
+	     remote_device.o port.o timers.o deprecated.o \
+	     host.o task.o events.o \
+	     core/scic_sds_controller.o  \
+	     core/scic_sds_remote_device.o    \
+	     core/scic_sds_request.o \
+	     core/scic_sds_stp_request.o \
+	     core/scic_sds_stp_packet_request.o \
+	     core/scic_sds_stp_remote_device.o \
+	     core/scic_sds_port.o \
+	     core/scic_sds_port_configuration_agent.o \
+	     core/scic_sds_phy.o \
+	     core/scic_sds_ssp_request.o \
+	     core/scic_sds_remote_node_context.o \
+	     core/scic_sds_smp_request.o \
+	     core/scic_sds_smp_remote_device.o \
+	     core/scic_sds_remote_node_table.o \
+	     core/scic_sds_unsolicited_frame_control.o \
+	     core/sci_base_memory_descriptor_list.o \
+	     core/sci_base_state_machine.o \
+	     core/sci_util.o