[PATCH v1] RDMA/rxe: Bump up default maximum values used via uverbs

[Rao Shoaib <Rao.Shoaib@oracle.com>]

In our internal testing we have found that
default maximum values are too small.
Ideally there should be no limits, but since
maximum values are reported via ibv_query_device,
we have to return some value. So, the default
maximums have been changed to large values.

Signed-off-by: Rao Shoaib <Rao.Shoaib@oracle.com>
---

Resubmitting the patch after applying Bob's latest patches and testing
using via rping.

 drivers/infiniband/sw/rxe/rxe_param.h | 30 ++++++++++++++-------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h
index 742e6ec93686..d703a54df4ec 100644
--- a/drivers/infiniband/sw/rxe/rxe_param.h
+++ b/drivers/infiniband/sw/rxe/rxe_param.h
@@ -9,6 +9,8 @@
 
 #include <uapi/rdma/rdma_user_rxe.h>
 
+#define DEFAULT_MAX_VALUE (1 << 20)
+
 static inline enum ib_mtu rxe_mtu_int_to_enum(int mtu)
 {
 	if (mtu < 256)
@@ -37,7 +39,7 @@ static inline enum ib_mtu eth_mtu_int_to_enum(int mtu)
 enum rxe_device_param {
 	RXE_MAX_MR_SIZE			= -1ull,
 	RXE_PAGE_SIZE_CAP		= 0xfffff000,
-	RXE_MAX_QP_WR			= 0x4000,
+	RXE_MAX_QP_WR			= DEFAULT_MAX_VALUE,
 	RXE_DEVICE_CAP_FLAGS		= IB_DEVICE_BAD_PKEY_CNTR
 					| IB_DEVICE_BAD_QKEY_CNTR
 					| IB_DEVICE_AUTO_PATH_MIG
@@ -58,42 +60,42 @@ enum rxe_device_param {
 	RXE_MAX_INLINE_DATA		= RXE_MAX_WQE_SIZE -
 					  sizeof(struct rxe_send_wqe),
 	RXE_MAX_SGE_RD			= 32,
-	RXE_MAX_CQ			= 16384,
+	RXE_MAX_CQ			= DEFAULT_MAX_VALUE,
 	RXE_MAX_LOG_CQE			= 15,
-	RXE_MAX_PD			= 0x7ffc,
+	RXE_MAX_PD			= DEFAULT_MAX_VALUE,
 	RXE_MAX_QP_RD_ATOM		= 128,
 	RXE_MAX_RES_RD_ATOM		= 0x3f000,
 	RXE_MAX_QP_INIT_RD_ATOM		= 128,
 	RXE_MAX_MCAST_GRP		= 8192,
 	RXE_MAX_MCAST_QP_ATTACH		= 56,
 	RXE_MAX_TOT_MCAST_QP_ATTACH	= 0x70000,
-	RXE_MAX_AH			= 100,
-	RXE_MAX_SRQ_WR			= 0x4000,
+	RXE_MAX_AH			= DEFAULT_MAX_VALUE,
+	RXE_MAX_SRQ_WR			= DEFAULT_MAX_VALUE,
 	RXE_MIN_SRQ_WR			= 1,
 	RXE_MAX_SRQ_SGE			= 27,
 	RXE_MIN_SRQ_SGE			= 1,
 	RXE_MAX_FMR_PAGE_LIST_LEN	= 512,
-	RXE_MAX_PKEYS			= 1,
+	RXE_MAX_PKEYS			= 64,
 	RXE_LOCAL_CA_ACK_DELAY		= 15,
 
-	RXE_MAX_UCONTEXT		= 512,
+	RXE_MAX_UCONTEXT		= DEFAULT_MAX_VALUE,
 
 	RXE_NUM_PORT			= 1,
 
-	RXE_MAX_QP			= 0x10000,
 	RXE_MIN_QP_INDEX		= 16,
-	RXE_MAX_QP_INDEX		= 0x00020000,
+	RXE_MAX_QP_INDEX		= DEFAULT_MAX_VALUE,
+	RXE_MAX_QP			= DEFAULT_MAX_VALUE - RXE_MIN_QP_INDEX,
 
-	RXE_MAX_SRQ			= 0x00001000,
 	RXE_MIN_SRQ_INDEX		= 0x00020001,
-	RXE_MAX_SRQ_INDEX		= 0x00040000,
+	RXE_MAX_SRQ_INDEX		= DEFAULT_MAX_VALUE,
+	RXE_MAX_SRQ			= DEFAULT_MAX_VALUE - RXE_MIN_SRQ_INDEX,
 
-	RXE_MAX_MR			= 0x00001000,
-	RXE_MAX_MW			= 0x00001000,
 	RXE_MIN_MR_INDEX		= 0x00000001,
-	RXE_MAX_MR_INDEX		= 0x00010000,
+	RXE_MAX_MR_INDEX		= DEFAULT_MAX_VALUE,
+	RXE_MAX_MR			= DEFAULT_MAX_VALUE - RXE_MIN_MR_INDEX,
 	RXE_MIN_MW_INDEX		= 0x00010001,
 	RXE_MAX_MW_INDEX		= 0x00020000,
+	RXE_MAX_MW			= 0x00001000,
 
 	RXE_MAX_PKT_PER_ACK		= 64,
 
-- 
2.27.0