From: Steve Wise <swise@opengridcomputing.com>
Date: Thu, 10 May 2018 07:32:01 -0700
Subject: iw_cxgb4: provide detailed driver-specific MR information
Patch-mainline: v4.18-rc1
Git-commit: 013f64a88059fc65f01f1b967f1cf9c666a231a2
References: bsc#1104276 FATE#325935
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: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/hw/cxgb4/restrack.c | 61 +++++++++++++++++++++++++++++++++
1 file changed, 61 insertions(+)
--- a/drivers/infiniband/hw/cxgb4/restrack.c
+++ b/drivers/infiniband/hw/cxgb4/restrack.c
@@ -433,8 +433,69 @@ err:
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,
};