On Sun, 10 Dec 2006 16:39:16 -0600 Steve Wise wrote:
> 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/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 <[email protected]>.
> +
> + To compile this driver as a module, choose M here: the module
> + will be called iw_cxgb3.
Please indent all of that the same amount.
Kconfig help text should be indented 1 tab + 2 spaces,
like the first 2 lines are.
> 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.
Should be in Documentation/infiniband/.
Docs go in the Documentation/ dir, not in drivers/ dir.
---
~Randy
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