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path: root/drivers/infiniband/hw/cxgb4/ev.c
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Diffstat (limited to 'drivers/infiniband/hw/cxgb4/ev.c')
-rw-r--r--drivers/infiniband/hw/cxgb4/ev.c55
1 files changed, 50 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/cxgb4/ev.c b/drivers/infiniband/hw/cxgb4/ev.c
index d61d0a18f784..fbe6051af254 100644
--- a/drivers/infiniband/hw/cxgb4/ev.c
+++ b/drivers/infiniband/hw/cxgb4/ev.c
@@ -35,6 +35,55 @@
#include "iw_cxgb4.h"
+static void print_tpte(struct c4iw_dev *dev, u32 stag)
+{
+ int ret;
+ struct fw_ri_tpte tpte;
+
+ 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;
+ }
+ PDBG("stag idx 0x%x valid %d key 0x%x state %d pdid %d "
+ "perm 0x%x ps %d len 0x%llx va 0x%llx\n",
+ stag & 0xffffff00,
+ G_FW_RI_TPTE_VALID(ntohl(tpte.valid_to_pdid)),
+ G_FW_RI_TPTE_STAGKEY(ntohl(tpte.valid_to_pdid)),
+ G_FW_RI_TPTE_STAGSTATE(ntohl(tpte.valid_to_pdid)),
+ G_FW_RI_TPTE_PDID(ntohl(tpte.valid_to_pdid)),
+ G_FW_RI_TPTE_PERM(ntohl(tpte.locread_to_qpid)),
+ G_FW_RI_TPTE_PS(ntohl(tpte.locread_to_qpid)),
+ ((u64)ntohl(tpte.len_hi) << 32) | ntohl(tpte.len_lo),
+ ((u64)ntohl(tpte.va_hi) << 32) | ntohl(tpte.va_lo_fbo));
+}
+
+static void dump_err_cqe(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
+{
+ __be64 *p = (void *)err_cqe;
+
+ dev_err(&dev->rdev.lldi.pdev->dev,
+ "AE qpid %d opcode %d status 0x%x "
+ "type %d len 0x%x wrid.hi 0x%x wrid.lo 0x%x\n",
+ CQE_QPID(err_cqe), CQE_OPCODE(err_cqe),
+ CQE_STATUS(err_cqe), CQE_TYPE(err_cqe), ntohl(err_cqe->len),
+ CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe));
+
+ PDBG("%016llx %016llx %016llx %016llx\n",
+ be64_to_cpu(p[0]), be64_to_cpu(p[1]), be64_to_cpu(p[2]),
+ be64_to_cpu(p[3]));
+
+ /*
+ * Ingress WRITE and READ_RESP errors provide
+ * the offending stag, so parse and log it.
+ */
+ if (RQ_TYPE(err_cqe) && (CQE_OPCODE(err_cqe) == FW_RI_RDMA_WRITE ||
+ CQE_OPCODE(err_cqe) == FW_RI_READ_RESP))
+ print_tpte(dev, CQE_WRID_STAG(err_cqe));
+}
+
static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
struct c4iw_qp *qhp,
struct t4_cqe *err_cqe,
@@ -44,11 +93,7 @@ static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
struct c4iw_qp_attributes attrs;
unsigned long flag;
- printk(KERN_ERR MOD "AE qpid 0x%x opcode %d status 0x%x "
- "type %d wrid.hi 0x%x wrid.lo 0x%x\n",
- CQE_QPID(err_cqe), CQE_OPCODE(err_cqe),
- CQE_STATUS(err_cqe), CQE_TYPE(err_cqe),
- CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe));
+ dump_err_cqe(dev, err_cqe);
if (qhp->attr.state == C4IW_QP_STATE_RTS) {
attrs.next_state = C4IW_QP_STATE_TERMINATE;