From 608e00d0a2eb53079c55dc9c14d8711bbb3a4390 Mon Sep 17 00:00:00 2001 From: Manish Chopra Date: Thu, 24 May 2018 09:54:53 -0700 Subject: qed*: Support drop action classification With this patch, User can configure for the supported flows to be dropped. Added a stat "gft_filter_drop" as well to be populated in ethtool for the dropped flows. For example - ethtool -N p5p1 flow-type udp4 dst-port 8000 action -1 ethtool -N p5p1 flow-type tcp4 scr-ip 192.168.8.1 action -1 Signed-off-by: Manish Chopra Signed-off-by: Shahed Shaikh Signed-off-by: Ariel Elior Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qede/qede_filter.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/net/ethernet/qlogic/qede/qede_filter.c') diff --git a/drivers/net/ethernet/qlogic/qede/qede_filter.c b/drivers/net/ethernet/qlogic/qede/qede_filter.c index 6c02c21d996d..e9e088d9c815 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_filter.c +++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c @@ -90,6 +90,7 @@ struct qede_arfs_fltr_node { bool filter_op; bool used; u8 fw_rc; + bool b_is_drop; struct hlist_node node; }; @@ -125,6 +126,7 @@ static void qede_configure_arfs_fltr(struct qede_dev *edev, params.length = n->buf_len; params.qid = rxq_id; params.b_is_add = add_fltr; + params.b_is_drop = n->b_is_drop; if (n->vfid) { params.b_is_vf = true; @@ -1445,6 +1447,9 @@ int qede_get_cls_rule_entry(struct qede_dev *edev, struct ethtool_rxnfc *cmd) fsp->ring_cookie |= ((u64)fltr->vfid) << ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; } + + if (fltr->b_is_drop) + fsp->ring_cookie = RX_CLS_FLOW_DISC; unlock: __qede_unlock(edev); return rc; @@ -1816,6 +1821,10 @@ static int qede_flow_spec_validate(struct qede_dev *edev, return -EINVAL; } + /* If drop requested then no need to validate other data */ + if (fs->ring_cookie == RX_CLS_FLOW_DISC) + return 0; + if (ethtool_get_flow_spec_ring_vf(fs->ring_cookie)) return 0; @@ -1852,6 +1861,11 @@ static void qede_flow_set_destination(struct qede_dev *edev, struct qede_arfs_fltr_node *n, struct ethtool_rx_flow_spec *fs) { + if (fs->ring_cookie == RX_CLS_FLOW_DISC) { + n->b_is_drop = true; + return; + } + n->vfid = ethtool_get_flow_spec_ring_vf(fs->ring_cookie); n->rxq_id = ethtool_get_flow_spec_ring(fs->ring_cookie); n->next_rxq_id = n->rxq_id; -- cgit v1.2.3