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    Subject[PATCH v2 13/13] Kconfig/Makefile
    Date

    Signed-off-by: Steve Wise <swise@opengridcomputing.com>
    ---

    drivers/infiniband/Kconfig | 1 +
    drivers/infiniband/Makefile | 1 +
    drivers/infiniband/hw/cxgb3/Kconfig | 27 +++++++++++++++++++++++++++
    drivers/infiniband/hw/cxgb3/Makefile | 12 ++++++++++++
    drivers/infiniband/hw/cxgb3/locking.txt | 25 +++++++++++++++++++++++++
    5 files changed, 66 insertions(+), 0 deletions(-)

    diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
    index 59b3932..06453ab 100644
    --- a/drivers/infiniband/Kconfig
    +++ b/drivers/infiniband/Kconfig
    @@ -38,6 +38,7 @@ source "drivers/infiniband/hw/mthca/Kcon
    source "drivers/infiniband/hw/ipath/Kconfig"
    source "drivers/infiniband/hw/ehca/Kconfig"
    source "drivers/infiniband/hw/amso1100/Kconfig"
    +source "drivers/infiniband/hw/cxgb3/Kconfig"

    source "drivers/infiniband/ulp/ipoib/Kconfig"

    diff --git a/drivers/infiniband/Makefile b/drivers/infiniband/Makefile
    index 570b30a..69bdd55 100644
    --- a/drivers/infiniband/Makefile
    +++ b/drivers/infiniband/Makefile
    @@ -3,6 +3,7 @@ obj-$(CONFIG_INFINIBAND_MTHCA) += hw/mt
    obj-$(CONFIG_INFINIBAND_IPATH) += hw/ipath/
    obj-$(CONFIG_INFINIBAND_EHCA) += hw/ehca/
    obj-$(CONFIG_INFINIBAND_AMSO1100) += hw/amso1100/
    +obj-$(CONFIG_INFINIBAND_CXGB3) += hw/cxgb3/
    obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/
    obj-$(CONFIG_INFINIBAND_SRP) += ulp/srp/
    obj-$(CONFIG_INFINIBAND_ISER) += ulp/iser/
    diff --git a/drivers/infiniband/hw/cxgb3/Kconfig b/drivers/infiniband/hw/cxgb3/Kconfig
    new file mode 100644
    index 0000000..84f0f6e
    --- /dev/null
    +++ b/drivers/infiniband/hw/cxgb3/Kconfig
    @@ -0,0 +1,27 @@
    +config INFINIBAND_CXGB3
    + tristate "Chelsio RDMA Driver"
    + depends on CHELSIO_T3 && INFINIBAND
    + select GENERIC_ALLOCATOR
    + ---help---
    + This is an iWARP/RDMA driver for the Chelsio T3 1GbE and
    + 10GbE adapters.
    +
    + For general information about Chelsio and our products, visit
    + our website at <http://www.chelsio.com>.
    +
    + For customer support, please visit our customer support page at
    + <http://www.chelsio.com/support.htm>.
    +
    + Please send feedback to <linux-bugs@chelsio.com>.
    +
    + To compile this driver as a module, choose M here: the module
    + will be called iw_cxgb3.
    +
    +config INFINIBAND_CXGB3_DEBUG
    + bool "Verbose debugging output"
    + depends on INFINIBAND_CXGB3
    + default n
    + ---help---
    + This option causes the Chelsio RDMA driver to produce copious
    + amounts of debug messages. Select this if you are developing
    + the driver or trying to diagnose a problem.
    diff --git a/drivers/infiniband/hw/cxgb3/Makefile b/drivers/infiniband/hw/cxgb3/Makefile
    new file mode 100644
    index 0000000..0df2b3d
    --- /dev/null
    +++ b/drivers/infiniband/hw/cxgb3/Makefile
    @@ -0,0 +1,12 @@
    +EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/cxgb3 \
    + -I$(TOPDIR)/drivers/infiniband/hw/cxgb3/core
    +
    +obj-$(CONFIG_INFINIBAND_CXGB3) += iw_cxgb3.o
    +
    +iw_cxgb3-y := iwch_cm.o iwch_ev.o iwch_cq.o iwch_qp.o iwch_mem.o \
    + iwch_provider.o iwch.o core/cxio_hal.o core/cxio_resource.o
    +
    +ifdef CONFIG_INFINIBAND_CXGB3_DEBUG
    +EXTRA_CFLAGS += -DDEBUG -O1 -g
    +iw_cxgb3-y += core/cxio_dbg.o
    +endif
    diff --git a/drivers/infiniband/hw/cxgb3/locking.txt b/drivers/infiniband/hw/cxgb3/locking.txt
    new file mode 100644
    index 0000000..e5e9991
    --- /dev/null
    +++ b/drivers/infiniband/hw/cxgb3/locking.txt
    @@ -0,0 +1,25 @@
    +cq lock:
    + - spin lock
    + - used to synchronize the t3_cq
    +
    +qp lock:
    + - spin lock
    + - used to synchronize updates to the qp state, attrs, and the t3_wq.
    + - touched on interrupt and process context
    +
    +rnicp lock:
    + - spin lock
    + - touched on interrupt and process context
    + - used around lookup tables mapping CQID and QPID to a structure.
    + - used also to bump the refcnt atomically with the lookup.
    +
    +poll:
    + lock+disable on cq lock
    + lock qp lock for each cqe that is polled around the call
    + to cxio_poll_cq().
    +
    +post:
    + lock+disable qp lock
    +
    +global mutex iwch_mutex:
    + used to maintain global device list.
    -
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