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authorRao Shoaib <Rao.Shoaib@oracle.com>2021-09-14 18:12:20 -0700
committerJason Gunthorpe <jgg@nvidia.com>2021-10-04 15:55:06 -0300
commit0994a1bcd5f7c0bf7ca3b4938d4f0f6928ac7886 (patch)
treeb04141f41cd7a45881d65c5bb8264cd9a57ea56b /drivers/infiniband/sw
parent49b99314b49ef95b5a6f3bd9f0fc8912cfd10a9f (diff)
downloadlinux-0994a1bcd5f7c0bf7ca3b4938d4f0f6928ac7886.tar.bz2
RDMA/rxe: Bump up default maximum values used via uverbs
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. Link: https://lore.kernel.org/r/20210915011220.307585-1-Rao.Shoaib@oracle.com Signed-off-by: Rao Shoaib <Rao.Shoaib@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/sw')
-rw-r--r--drivers/infiniband/sw/rxe/rxe_param.h30
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h
index b5a70cbe94aa..aeffaef8f381 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,