[dpdk-dev] [PATCH v2] net/ice: fix RSS advanced rule invalid issue
Junyu Jiang
junyux.jiang at intel.com
Thu Mar 26 07:57:25 CET 2020
This patch added a restore function for RSS advanced rule to fix
the rule invalid after running port stop and port start.
Fixes: 5ad3db8d4bdd ("net/ice: enable advanced RSS")
Cc: stable at dpdk.org
Signed-off-by: Junyu Jiang <junyux.jiang at intel.com>
---
drivers/net/ice/ice_ethdev.c | 47 ++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 85ef83e92..c2ee37c59 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -47,6 +47,11 @@ struct proto_xtr_ol_flag {
bool required;
};
+struct ice_hash_flow_cfg {
+ bool simple_xor;
+ struct ice_rss_cfg rss_cfg;
+};
+
static struct proto_xtr_ol_flag ice_proto_xtr_ol_flag_params[] = {
[PROTO_XTR_VLAN] = {
.param = { .name = "ice_dynflag_proto_xtr_vlan" },
@@ -2464,6 +2469,45 @@ ice_dev_configure(struct rte_eth_dev *dev)
return 0;
}
+static int
+ice_rss_restore(struct rte_eth_dev *dev)
+{
+ struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+ struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct ice_vsi *vsi = pf->main_vsi;
+ struct rte_flow *p_flow;
+ struct ice_hash_flow_cfg *filter_ptr;
+ struct ice_flow_engine *engine;
+ uint32_t reg;
+ int ret;
+
+ TAILQ_FOREACH(p_flow, &pf->flow_list, node) {
+ engine = p_flow->engine;
+ if (engine->type == ICE_FLOW_ENGINE_HASH) {
+ filter_ptr = (struct ice_hash_flow_cfg *)p_flow->rule;
+ /* Enable registers for simple_xor hash function. */
+ if (filter_ptr->simple_xor == 1) {
+ reg = ICE_READ_REG(hw,
+ VSIQF_HASH_CTL(vsi->vsi_id));
+ reg = (reg & (~VSIQF_HASH_CTL_HASH_SCHEME_M)) |
+ (2 << VSIQF_HASH_CTL_HASH_SCHEME_S);
+ ICE_WRITE_REG(hw,
+ VSIQF_HASH_CTL(vsi->vsi_id), reg);
+ } else {
+ ret = ice_add_rss_cfg(hw, vsi->idx,
+ filter_ptr->rss_cfg.hashed_flds,
+ filter_ptr->rss_cfg.packet_hdr,
+ filter_ptr->rss_cfg.symm);
+ if (ret)
+ PMD_DRV_LOG(ERR,
+ "%s restore rss fail %d",
+ __func__, ret);
+ }
+ }
+ }
+ return 0;
+}
+
static int ice_init_rss(struct ice_pf *pf)
{
struct ice_hw *hw = ICE_PF_TO_HW(pf);
@@ -2591,6 +2635,9 @@ static int ice_init_rss(struct ice_pf *pf)
PMD_DRV_LOG(ERR, "%s PPPoE/PPPoD_SessionID rss flow fail %d",
__func__, ret);
+ /* restore RSS configuration */
+ ice_rss_restore(dev);
+
return 0;
}
--
2.17.1
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