[dpdk-dev] [PATCH 2/4] net/qede/base: fix to clear HW indication

[Rasesh Mody]

VDMs may cause the was_error indication to be set after the driver
clears it. Clear the indication after the internal FID_enable for
the PF is set.

Fixes: 60c78a5e258a ("net/qede/base: fix recovery from previous ungraceful exit")
Cc: stable at dpdk.org

Signed-off-by: Rasesh Mody <rasesh.mody at cavium.com>
---
 drivers/net/qede/base/ecore_dev.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/qede/base/ecore_dev.c b/drivers/net/qede/base/ecore_dev.c
index cfe73c6..31f1f3e 100644
--- a/drivers/net/qede/base/ecore_dev.c
+++ b/drivers/net/qede/base/ecore_dev.c
@@ -2511,9 +2511,8 @@ enum _ecore_status_t ecore_hw_init(struct ecore_dev *p_dev,
 			}
 		}
 
-		/* Log and clean previous pglue_b errors if such exist */
+		/* Log and clear previous pglue_b errors if such exist */
 		ecore_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_main_ptt, true);
-		ecore_pglueb_clear_err(p_hwfn, p_hwfn->p_main_ptt);
 
 		/* Enable the PF's internal FID_enable in the PXP */
 		rc = ecore_pglueb_set_pfid_enable(p_hwfn, p_hwfn->p_main_ptt,
@@ -2521,6 +2520,13 @@ enum _ecore_status_t ecore_hw_init(struct ecore_dev *p_dev,
 		if (rc != ECORE_SUCCESS)
 			goto load_err;
 
+		/* Clear the pglue_b was_error indication.
+		 * In E4 it must be done after the BME and the internal
+		 * FID_enable for the PF are set, since VDMs may cause the
+		 * indication to be set again.
+		 */
+		ecore_pglueb_clear_err(p_hwfn, p_hwfn->p_main_ptt);
+
 		switch (load_code) {
 		case FW_MSG_CODE_DRV_LOAD_ENGINE:
 			rc = ecore_hw_init_common(p_hwfn, p_hwfn->p_main_ptt,
-- 
1.7.10.3