diff mbox

[dpdk-dev,v4,55/62] net/qede/base: prevent DMAE transactions during recovery

Message ID 1490683952-24919-56-git-send-email-rasesh.mody@cavium.com (mailing list archive)
State Changes Requested, archived
Delegated to: Ferruh Yigit
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Mody, Rasesh March 28, 2017, 6:52 a.m. UTC 
  Prevent DMA engine transactions during recovery phase.

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
---
 drivers/net/qede/base/ecore_hw.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)
diff mbox

Patch

diff --git a/drivers/net/qede/base/ecore_hw.c b/drivers/net/qede/base/ecore_hw.c
index 396edc2..2bcc32d 100644
--- 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);