IB/hfi1: add driver files

Signed-off-by: Andrew Friedley <[email protected]>
Signed-off-by: Arthur Kepner <[email protected]>
Signed-off-by: Brendan Cunningham <[email protected]>
Signed-off-by: Brian Welty <[email protected]>
Signed-off-by: Caz Yokoyama <[email protected]>
Signed-off-by: Dean Luick <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Easwar Hariharan <[email protected]>
Signed-off-by: Harish Chegondi <[email protected]>
Signed-off-by: Ira Weiny <[email protected]>
Signed-off-by: Jim Snow <[email protected]>
Signed-off-by: John Gregor <[email protected]>
Signed-off-by: Jubin John <[email protected]>
Signed-off-by: Kaike Wan <[email protected]>
Signed-off-by: Kevin Pine <[email protected]>
Signed-off-by: Kyle Liddell <[email protected]>
Signed-off-by: Mike Marciniszyn <[email protected]>
Signed-off-by: Mitko Haralanov <[email protected]>
Signed-off-by: Ravi Krishnaswamy <[email protected]>
Signed-off-by: Sadanand Warrier <[email protected]>
Signed-off-by: Sanath Kumar <[email protected]>
Signed-off-by: Sudeep Dutt <[email protected]>
Signed-off-by: Vlad Danushevsky <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

Author: Mike Marciniszyn

Documentation/infiniband/sysfs.txt

@@ -64,3 +64,23 @@ MTHCA
     fw_ver   - Firmware version
     hca_type - HCA type: "MT23108", "MT25208 (MT23108 compat mode)",
                or "MT25208"
+
+HFI1
+
+  The hfi1 driver also creates these additional files:
+
+   hw_rev - hardware revision
+   board_id - manufacturing board id
+   tempsense - thermal sense information
+   serial - board serial number
+   nfreectxts - number of free user contexts
+   nctxts - number of allowed contexts (PSM2)
+   chip_reset - diagnostic (root only)
+   boardversion - board version
+   ports/1/
+          CMgtA/
+               cc_settings_bin - CCA tables used by PSM2
+               cc_table_bin
+          sc2v/ - 32 files (0 - 31) used to translate sl->vl
+          sl2sc/ - 32 files (0 - 31) used to translate sl->sc
+          vl2mtu/ - 16 (0 - 15) files used to determine MTU for vl

MAINTAINERS

@@ -9809,6 +9809,12 @@ M:	Arnaud Patard <[email protected]>
 S:	Odd Fixes
 F:	drivers/staging/xgifb/
 
+HFI1 DRIVER
+M:	Mike Marciniszyn <[email protected]>
+L:	[email protected]
+S:	Supported
+F:	drivers/staging/rdma/hfi1
+
 STARFIRE/DURALAN NETWORK DRIVER
 M:	Ion Badulescu <[email protected]>
 S:	Odd Fixes

drivers/staging/rdma/Kconfig

@@ -24,6 +24,8 @@ if STAGING_RDMA
 
 source "drivers/staging/rdma/amso1100/Kconfig"
 
+source "drivers/staging/rdma/hfi1/Kconfig"
+
 source "drivers/staging/rdma/ipath/Kconfig"
 
 endif

drivers/staging/rdma/Makefile

@@ -1,3 +1,4 @@
 # Entries for RDMA_STAGING tree
 obj-$(CONFIG_INFINIBAND_AMSO1100)	+= amso1100/
+obj-$(CONFIG_INFINIBAND_HFI1)	+= hfi1/
 obj-$(CONFIG_INFINIBAND_IPATH)	+= ipath/

drivers/staging/rdma/hfi1/Kconfig

@@ -0,0 +1,37 @@
+config INFINIBAND_HFI1
+	tristate "Intel OPA Gen1 support"
+	depends on X86_64
+	default m
+	---help---
+	This is a low-level driver for Intel OPA Gen1 adapter.
+config HFI1_DEBUG_SDMA_ORDER
+	bool "HFI1 SDMA Order debug"
+	depends on INFINIBAND_HFI1
+	default n
+	---help---
+	This is a debug flag to test for out of order
+	sdma completions for unit testing
+config HFI1_VERBS_31BIT_PSN
+	bool "HFI1 enable 31 bit PSN"
+	depends on INFINIBAND_HFI1
+	default y
+	---help---
+	Setting this enables 31 BIT PSN
+	For verbs RC/UC
+config SDMA_VERBOSITY
+	bool "Config SDMA Verbosity"
+	depends on INFINIBAND_HFI1
+	default n
+	---help---
+	This is a configuration flag to enable verbose
+	SDMA debug
+config PRESCAN_RXQ
+	bool "Enable prescanning of the RX queue for ECNs"
+	depends on INFINIBAND_HFI1
+	default n
+	---help---
+	This option toggles the prescanning of the receive queue for
+	Explicit Congestion Notifications. If an ECN is detected, it
+	is processed as quickly as possible, the ECN is toggled off.
+	After the prescanning step, the receive queue is processed as
+	usual.

drivers/staging/rdma/hfi1/Makefile

@@ -0,0 +1,19 @@
+#
+# HFI driver
+#
+#
+#
+# Called from the kernel module build system.
+#
+obj-$(CONFIG_INFINIBAND_HFI1) += hfi1.o
+
+hfi1-y := chip.o cq.o device.o diag.o dma.o driver.o eprom.o file_ops.o firmware.o \
+	init.o intr.o keys.o mad.o mmap.o mr.o pcie.o pio.o pio_copy.o \
+	qp.o qsfp.o rc.o ruc.o sdma.o srq.o sysfs.o trace.o twsi.o \
+	uc.o ud.o user_pages.o user_sdma.o verbs_mcast.o verbs.o
+hfi1-$(CONFIG_DEBUG_FS) += debugfs.o
+
+CFLAGS_trace.o = -I$(src)
+ifdef MVERSION
+CFLAGS_driver.o = -DHFI_DRIVER_VERSION_BASE=\"$(MVERSION)\"
+endif

drivers/staging/rdma/hfi1/TODO

@@ -0,0 +1,6 @@
+July, 2015
+
+- Remove unneeded file entries in sysfs
+- Remove software processing of IB protocol and place in library for use
+  by qib, ipath (if still present), hfi1, and eventually soft-roce
+