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Commit e981f1d4 authored by Erez Zilber's avatar Erez Zilber Committed by Roland Dreier
Browse files

IB/iser: fix some debug prints 



fix and add some debug prints related to iser
handling of memory for rdma.

Signed-off-by: default avatarErez Zilber <erezz@voltaire.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 8dfa0876

drivers/infiniband/ulp/iser/iser_memory.c

+14 −3
Original line number Diff line number Diff line
@@ -329,9 +329,9 @@ static void iser_data_buf_dump(struct iser_data_buf *data) 
	struct scatterlist *sg = (struct scatterlist *)data->buf;

	int i;



	for (i = 0; i < data->size; i++)

	for (i = 0; i < data->dma_nents; i++)

		iser_err("sg[%d] dma_addr:0x%lX page:0x%p "

			 "off:%d sz:%d dma_len:%d\n",

			 "off:0x%x sz:0x%x dma_len:0x%x\n",

			 i, (unsigned long)sg_dma_address(&sg[i]),

			 sg[i].page, sg[i].offset,

			 sg[i].length,sg_dma_len(&sg[i]));
@@ -383,6 +383,7 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask, 
	struct iser_regd_buf *regd_buf;

	int aligned_len;

	int err;

	int i;



	regd_buf = &iser_ctask->rdma_regd[cmd_dir];
@@ -400,8 +401,18 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask, 


	iser_page_vec_build(mem, ib_conn->page_vec);

	err = iser_reg_page_vec(ib_conn, ib_conn->page_vec, &regd_buf->reg);

	if (err)

	if (err) {

		iser_data_buf_dump(mem);

		iser_err("mem->dma_nents = %d (dlength = 0x%x)\n", mem->dma_nents,

			 ntoh24(iser_ctask->desc.iscsi_header.dlength));

		iser_err("page_vec: data_size = 0x%x, length = %d, offset = 0x%x\n",

			 ib_conn->page_vec->data_size, ib_conn->page_vec->length,

			 ib_conn->page_vec->offset);

		for (i=0 ; i<ib_conn->page_vec->length ; i++) {

			iser_err("page_vec[%d] = 0x%lx\n", i, ib_conn->page_vec->pages[i]);

		}

		return err;

	}



	/* take a reference on this regd buf such that it will not be released *

	 * (eg in send dto completion) before we get the scsi response         */