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Commit 013f64a8 authored by Steve Wise's avatar Steve Wise Committed by Jason Gunthorpe
Browse files

iw_cxgb4: provide detailed driver-specific MR information 



Add a table of important fields from the fw_ri_tpte structure to the mr
resource tracking table.  This is helpful in debugging.

Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 54e7688e

drivers/infiniband/hw/cxgb4/restrack.c

+61 −0
Original line number Diff line number Diff line
@@ -433,8 +433,69 @@ static int fill_res_cq_entry(struct sk_buff *msg, 
	return -EMSGSIZE;

}



static int fill_res_mr_entry(struct sk_buff *msg,

			     struct rdma_restrack_entry *res)

{

	struct ib_mr *ibmr = container_of(res, struct ib_mr, res);

	struct c4iw_mr *mhp = to_c4iw_mr(ibmr);

	struct c4iw_dev *dev = mhp->rhp;

	u32 stag = mhp->attr.stag;

	struct nlattr *table_attr;

	struct fw_ri_tpte tpte;

	int ret;



	if (!stag)

		return 0;



	table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);

	if (!table_attr)

		goto err;



	ret = cxgb4_read_tpte(dev->rdev.lldi.ports[0], stag, (__be32 *)&tpte);

	if (ret) {

		dev_err(&dev->rdev.lldi.pdev->dev,

			"%s cxgb4_read_tpte err %d\n", __func__, ret);

		return 0;

	}



	if (rdma_nl_put_driver_u32_hex(msg, "idx", stag >> 8))

		goto err_cancel_table;

	if (rdma_nl_put_driver_u32(msg, "valid",

			FW_RI_TPTE_VALID_G(ntohl(tpte.valid_to_pdid))))

		goto err_cancel_table;

	if (rdma_nl_put_driver_u32_hex(msg, "key", stag & 0xff))

		goto err_cancel_table;

	if (rdma_nl_put_driver_u32(msg, "state",

			FW_RI_TPTE_STAGSTATE_G(ntohl(tpte.valid_to_pdid))))

		goto err_cancel_table;

	if (rdma_nl_put_driver_u32(msg, "pdid",

			FW_RI_TPTE_PDID_G(ntohl(tpte.valid_to_pdid))))

		goto err_cancel_table;

	if (rdma_nl_put_driver_u32_hex(msg, "perm",

			FW_RI_TPTE_PERM_G(ntohl(tpte.locread_to_qpid))))

		goto err_cancel_table;

	if (rdma_nl_put_driver_u32(msg, "ps",

			FW_RI_TPTE_PS_G(ntohl(tpte.locread_to_qpid))))

		goto err_cancel_table;

	if (rdma_nl_put_driver_u64(msg, "len",

		      ((u64)ntohl(tpte.len_hi) << 32) | ntohl(tpte.len_lo)))

		goto err_cancel_table;

	if (rdma_nl_put_driver_u32_hex(msg, "pbl_addr",

			FW_RI_TPTE_PBLADDR_G(ntohl(tpte.nosnoop_pbladdr))))

		goto err_cancel_table;



	nla_nest_end(msg, table_attr);

	return 0;



err_cancel_table:

	nla_nest_cancel(msg, table_attr);

err:

	return -EMSGSIZE;

}



c4iw_restrack_func *c4iw_restrack_funcs[RDMA_RESTRACK_MAX] = {

	[RDMA_RESTRACK_QP]	= fill_res_qp_entry,

	[RDMA_RESTRACK_CM_ID]	= fill_res_ep_entry,

	[RDMA_RESTRACK_CQ]	= fill_res_cq_entry,

	[RDMA_RESTRACK_MR]	= fill_res_mr_entry,

};