[PATCH for-next] RDMA/rxe: Set max_seg_size to a valid value

[PATCH for-next] RDMA/rxe: Set max_seg_size to a valid value

[Bob Pearson]

With the recent change to __sg_alloc_table_from_page the old value
for max_seg_size is no longer valid.

Change to a new parameter RXE_MAX_SEG_SIZE wich is set to 1G.

Signed-off-by: Bob Pearson <rpearson@hpe.com>
---
 drivers/infiniband/sw/rxe/rxe_param.h | 1 +
 drivers/infiniband/sw/rxe/rxe_verbs.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h
index 25ab50d9b7c2..03893d5634c8 100644
--- a/drivers/infiniband/sw/rxe/rxe_param.h
+++ b/drivers/infiniband/sw/rxe/rxe_param.h
@@ -36,6 +36,7 @@ static inline enum ib_mtu eth_mtu_int_to_enum(int mtu)
 /* default/initial rxe device parameter settings */
 enum rxe_device_param {
 	RXE_MAX_MR_SIZE			= -1ull,
+	RXE_MAX_SEG_SIZE		= SZ_1G,
 	RXE_PAGE_SIZE_CAP		= 0xfffff000,
 	RXE_MAX_QP			= 0x10000,
 	RXE_MAX_QP_WR			= 0x4000,
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index d487ccd7f8b9..0a7d7c55d8d6 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -1129,7 +1129,7 @@ int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name)
 	addrconf_addr_eui48((unsigned char *)&dev->node_guid,
 			    rxe->ndev->dev_addr);
 	dev->dev.dma_parms = &rxe->dma_parms;
-	dma_set_max_seg_size(&dev->dev, UINT_MAX);
+	dma_set_max_seg_size(&dev->dev, RXE_MAX_SEG_SIZE);
 	dma_set_coherent_mask(&dev->dev, dma_get_required_mask(&dev->dev));
 
 	dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT)
-- 
2.25.1