[dpdk-stable] patch 'net/qede/base: fix to handle acquire request from VF' has been queued to stable release 16.11.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 16.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable
yet. It will be pushed if I get no objections before 01/28/17.
So please shout if anyone has objections.

---

Note 16.11 is a LTS release. v16.11.1 is planned to be released
shortly (about 2-3 weeks) after v17.02.

---

Thanks.

	--yliu

---
>From 5c76963a53d0df863f6253a748c70ec37e0eed6e Mon Sep 17 00:00:00 2001
From: Rasesh Mody <rasesh.mody at cavium.com>
Date: Thu, 22 Dec 2016 16:50:03 -0800
Subject: [PATCH] net/qede/base: fix to handle acquire request from VF

[ upstream commit b765730bc13e008e2b3452a2e6dffb2d24994035 ]

Add a check and fail the VF's probe request if VF is already in
VF_ACQUIRED state.

Fixes: 22d07d939c3c ("net/qede/base: update")

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

diff --git a/drivers/net/qede/base/ecore_sriov.c b/drivers/net/qede/base/ecore_sriov.c
index 1255296..c2fbee8 100644
--- a/drivers/net/qede/base/ecore_sriov.c
+++ b/drivers/net/qede/base/ecore_sriov.c
@@ -1459,6 +1459,18 @@ static void ecore_iov_vf_mbx_acquire(struct ecore_hwfn       *p_hwfn,
 	pfdev_info->major_fp_hsi = ETH_HSI_VER_MAJOR;
 	pfdev_info->minor_fp_hsi = ETH_HSI_VER_MINOR;
 
+	/* TODO - not doing anything is bad since we'll assert, but this isn't
+	 * necessarily the right behavior - perhaps we should have allowed some
+	 * versatility here.
+	 */
+	if (vf->state != VF_FREE &&
+	    vf->state != VF_STOPPED) {
+		DP_VERBOSE(p_hwfn, ECORE_MSG_IOV,
+			   "VF[%d] sent ACQUIRE but is already in state %d - fail request\n",
+			   vf->abs_vf_id, vf->state);
+		goto out;
+	}
+
 	/* Validate FW compatibility */
 	if (req->vfdev_info.eth_fp_hsi_major != ETH_HSI_VER_MAJOR) {
 		if (req->vfdev_info.capabilities &
-- 
1.9.0