RDMA/efa: Fix unsupported page sizes in device

Device uses 4KB size blocks for user pages indirect list while the
driver creates those blocks with the size of PAGE_SIZE of the kernel. On
kernels with PAGE_SIZE different than 4KB (ARM RHEL), this leads to a
failure on register MR with indirect list because of the miss
communication between driver and device.

Fixes: 40909f6 ("RDMA/efa: Add EFA verbs implementation")
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Firas Jahjah <[email protected]>
Reviewed-by: Michael Margolin <[email protected]>
Signed-off-by: Yonatan Nachum <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

Author: YonatanNachum

drivers/infiniband/hw/efa/efa_verbs.c

@@ -1403,7 +1403,7 @@ static int pbl_continuous_initialize(struct efa_dev *dev,
  */
 static int pbl_indirect_initialize(struct efa_dev *dev, struct pbl_context *pbl)
 {
-	u32 size_in_pages = DIV_ROUND_UP(pbl->pbl_buf_size_in_bytes, PAGE_SIZE);
+	u32 size_in_pages = DIV_ROUND_UP(pbl->pbl_buf_size_in_bytes, EFA_CHUNK_PAYLOAD_SIZE);
 	struct scatterlist *sgl;
 	int sg_dma_cnt, err;