IB/hfi1: Add receive fault injection feature

[linux-block.git] / drivers / infiniband / hw / hfi1 / driver.c

diff --git a/drivers/infiniband/hw/hfi1/driver.c b/drivers/infiniband/hw/hfi1/driver.c
index 3881c951f6af308dd23266ab91c78c000fa4f5d9..c0b012f6e11cbcde6b7c950b801533ceda0d7bf9 100644 (file)
--- a/drivers/infiniband/hw/hfi1/driver.c
+++ b/drivers/infiniband/hw/hfi1/driver.c
@@ -59,6 +59,7 @@
 #include "trace.h"
 #include "qp.h"
 #include "sdma.h"
+#include "debugfs.h"
 
 #undef pr_fmt
 #define pr_fmt(fmt) DRIVER_NAME ": " fmt
@@ -1354,6 +1355,9 @@ void handle_eflags(struct hfi1_packet *packet)
  */
 int process_receive_ib(struct hfi1_packet *packet)
 {
+       if (unlikely(hfi1_dbg_fault_packet(packet)))
+               return RHF_RCV_CONTINUE;
+
        trace_hfi1_rcvhdr(packet->rcd->ppd->dd,
                          packet->rcd->ctxt,
                          rhf_err_flags(packet->rhf),
@@ -1409,6 +1413,8 @@ int process_receive_error(struct hfi1_packet *packet)
 
 int kdeth_process_expected(struct hfi1_packet *packet)
 {
+       if (unlikely(hfi1_dbg_fault_packet(packet)))
+               return RHF_RCV_CONTINUE;
        if (unlikely(rhf_err_flags(packet->rhf)))
                handle_eflags(packet);
 
@@ -1421,6 +1427,8 @@ int kdeth_process_eager(struct hfi1_packet *packet)
 {
        if (unlikely(rhf_err_flags(packet->rhf)))
                handle_eflags(packet);
+       if (unlikely(hfi1_dbg_fault_packet(packet)))
+               return RHF_RCV_CONTINUE;
 
        dd_dev_err(packet->rcd->dd,
                   "Unhandled eager packet received. Dropping.\n");