[PATCH net-next 2/4] qed: Prevent VFs from pause flooding

[Yuval Mintz]

Firmware would silently drop any control frame sent by VF to prevent
a malicious VF from generating pause flood in the network.

Signed-off-by: Yuval Mintz <yuval.mi...@qlogic.com>
---
 drivers/net/ethernet/qlogic/qed/qed_l2.c    | 3 +++
 drivers/net/ethernet/qlogic/qed/qed_l2.h    | 2 ++
 drivers/net/ethernet/qlogic/qed/qed_sriov.c | 1 +
 3 files changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.c 
b/drivers/net/ethernet/qlogic/qed/qed_l2.c
index c04162d..bf43301 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c
@@ -101,6 +101,9 @@ int qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
 
        p_ramrod->tx_switching_en = p_params->tx_switching;
 
+       p_ramrod->ctl_frame_mac_check_en = !!p_params->check_mac;
+       p_ramrod->ctl_frame_ethtype_check_en = !!p_params->check_ethtype;
+
        /* Software Function ID in hwfn (PFs are 0 - 15, VFs are 16 - 135) */
        p_ramrod->sw_fid = qed_concrete_to_sw_fid(p_hwfn->cdev,
                                                  p_params->concrete_fid);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.h 
b/drivers/net/ethernet/qlogic/qed/qed_l2.h
index ea93519..e495d62 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.h
@@ -102,6 +102,8 @@ struct qed_sp_vport_start_params {
        u16 opaque_fid;
        u8 vport_id;
        u16 mtu;
+       bool check_mac;
+       bool check_ethtype;
 };
 
 int qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.c 
b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
index f1fae77..cb68674 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sriov.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
@@ -1680,6 +1680,7 @@ static void qed_iov_vf_mbx_start_vport(struct qed_hwfn 
*p_hwfn,
        params.vport_id = vf->vport_id;
        params.max_buffers_per_cqe = start->max_buffers_per_cqe;
        params.mtu = vf->mtu;
+       params.check_mac = true;
 
        rc = qed_sp_eth_vport_start(p_hwfn, &params);
        if (rc) {
-- 
1.9.3