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authorsantosh.shilimkar@oracle.com <santosh.shilimkar@oracle.com>2016-03-02 02:20:52 +0300
committerDavid S. Miller <davem@davemloft.net>2016-03-02 22:13:19 +0300
commit2cb2912d65633e751d3f8397377174501412aa47 (patch)
tree690fc1a19547289d37f9cf831f03d49e5e5a17ee /net/rds/ib.h
parentdb42753adb638b63572583162bb08ea193947309 (diff)
downloadlinux-2cb2912d65633e751d3f8397377174501412aa47.tar.xz
RDS: IB: add Fastreg MR (FRMR) detection support
Discovere Fast Memmory Registration support using IB device IB_DEVICE_MEM_MGT_EXTENSIONS. Certain HCA might support just FRMR or FMR or both FMR and FRWR. In case both mr type are supported, default FMR is used. Default MR is still kept as FMR against what everyone else is following. Default will be changed to FRMR once the RDS performance with FRMR is comparable with FMR. The work is in progress for the same. Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/ib.h')
-rw-r--r--net/rds/ib.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/rds/ib.h b/net/rds/ib.h
index 62fe7d5330ad..c5eddc2086ff 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -200,6 +200,10 @@ struct rds_ib_device {
struct list_head conn_list;
struct ib_device *dev;
struct ib_pd *pd;
+ bool has_fmr;
+ bool has_fr;
+ bool use_fastreg;
+
unsigned int max_mrs;
struct rds_ib_mr_pool *mr_1m_pool;
struct rds_ib_mr_pool *mr_8k_pool;