diff mbox

[dpdk-dev,3/8] net/qede/base: fix multiple acquisition requests by VF

Message ID 1480746909-25686-3-git-send-email-Rasesh.Mody@cavium.com (mailing list archive)
State Changes Requested, archived
Delegated to: Ferruh Yigit
Headers

Checks

Context Check Description
checkpatch/checkpatch success coding style OK

Commit Message

Mody, Rasesh Dec. 3, 2016, 6:35 a.m. UTC 
  There are certain conditions under which VF would infinitely send
ACQUIRE messages, as it will fail to understand that PF has rejected
the ACQUIRE request. Fix to reject multiple acquisition requests by VF.

Fixes: 22d07d93 ("net/qede/base: update")

Signed-off-by: Rasesh Mody <Rasesh.Mody@cavium.com>
---
 drivers/net/qede/base/ecore_vf.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox

Patch

diff --git a/drivers/net/qede/base/ecore_vf.c b/drivers/net/qede/base/ecore_vf.c
index be8b1ec4..161b3176 100644
--- a/drivers/net/qede/base/ecore_vf.c
+++ b/drivers/net/qede/base/ecore_vf.c
@@ -296,6 +296,14 @@  static enum _ecore_status_t ecore_vf_pf_acquire(struct ecore_hwfn *p_hwfn)
 						VFPF_ACQUIRE_CAP_PRE_FP_HSI;
 				}
 			}
+
+			/* If PF/VF are using same Major, PF must have had
+			 * it's reasons. Simply fail.
+			 */
+			DP_NOTICE(p_hwfn, false,
+				  "PF rejected acquisition by VF\n");
+			rc = ECORE_INVAL;
+			goto exit;
 		} else {
 			DP_ERR(p_hwfn,
 			       "PF returned err %d to VF acquisition request\n",