cxgb4: Try and provide an RDMA CIQ per cpu

Browse source

To allow for better scalability on systems with large core counts, we
will try and allocate enough RDMA Concentrator IQs and MSI/X vectors as
we have cores. If we cannot get enough MSI/X vectors, fall back to the
minimum required: 1 per adapter rx channel.

Also clean up cxgb_enable_msix() to make it readable and correct a bug
where the vectors are not correctly assigned if the driver doesn't get
the full amount requested.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Hariprasad Shenai 2015-03-04 18:16:28 +05:30 • committed by David S. Miller

parent 1c6a5b0e34

commit f36e58e566

3 changed files with 46 additions and 17 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

drivers/net/ethernet/chelsio/cxgb4/cxgb4.h

View file

4

drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c

View file

53

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

View file