net/qede/base: prevent DMAE transactions during recovery

Prevent DMA engine transactions during recovery phase.

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>

diff --git a/drivers/net/qede/base/ecore_hw.c b/drivers/net/qede/base/ecore_hw.c
index 396edc2..2bcc32d 100644 (file)
--- a/drivers/net/qede/base/ecore_hw.c
+++ b/drivers/net/qede/base/ecore_hw.c
@@ -773,6 +773,18 @@ ecore_dmae_execute_command(struct ecore_hwfn *p_hwfn,
        enum _ecore_status_t ecore_status = ECORE_SUCCESS;
        u32 offset = 0;
 
+       if (p_hwfn->p_dev->recov_in_prog) {
+               DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
+                          "Recovery is in progress. Avoid DMAE transaction [{src: addr 0x%lx, type %d}, {dst: addr 0x%lx, type %d}, size %d].\n",
+                          (unsigned long)src_addr, src_type,
+                          (unsigned long)dst_addr, dst_type,
+                          size_in_dwords);
+               /* Return success to let the flow to be completed successfully
+                * w/o any error handling.
+                */
+               return ECORE_SUCCESS;
+       }
+
        ecore_dmae_opcode(p_hwfn,
                          (src_type == ECORE_DMAE_ADDRESS_GRC),
                          (dst_type == ECORE_DMAE_ADDRESS_GRC), p_params);