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Date: Wed, 23 Feb 2022 17:22:57 +0100
From: Simon Horman <simon.horman@...igine.com>
To: David Miller <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>
Cc: Baowen Zheng <baowen.zheng@...igine.com>,
Louis Peens <louis.peens@...igine.com>, netdev@...r.kernel.org,
oss-drivers@...igine.com, Simon Horman <simon.horman@...igine.com>
Subject: [PATCH net-next v2 1/6] nfp: refactor policer config to support ingress/egress meter
From: Baowen Zheng <baowen.zheng@...igine.com>
Add an policer API to support ingress/egress meter.
Change ingress police to compatible with the new API.
Signed-off-by: Baowen Zheng <baowen.zheng@...igine.com>
Signed-off-by: Louis Peens <louis.peens@...igine.com>
Signed-off-by: Simon Horman <simon.horman@...igine.com>
---
.../net/ethernet/netronome/nfp/flower/main.h | 2 +
.../ethernet/netronome/nfp/flower/qos_conf.c | 74 ++++++++++++++-----
2 files changed, 56 insertions(+), 20 deletions(-)
diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h
index 917c450a7aad..7720403e79fb 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/main.h
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.h
@@ -569,4 +569,6 @@ nfp_flower_xmit_flow(struct nfp_app *app, struct nfp_fl_payload *nfp_flow,
void
nfp_flower_update_merge_stats(struct nfp_app *app,
struct nfp_fl_payload *sub_flow);
+int nfp_flower_offload_one_police(struct nfp_app *app, bool ingress,
+ bool pps, u32 id, u32 rate, u32 burst);
#endif
diff --git a/drivers/net/ethernet/netronome/nfp/flower/qos_conf.c b/drivers/net/ethernet/netronome/nfp/flower/qos_conf.c
index 784c6dbf8bc4..68a92a28d7fa 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/qos_conf.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/qos_conf.c
@@ -11,10 +11,14 @@
#define NFP_FL_QOS_UPDATE msecs_to_jiffies(1000)
#define NFP_FL_QOS_PPS BIT(15)
+#define NFP_FL_QOS_METER BIT(10)
struct nfp_police_cfg_head {
__be32 flags_opts;
- __be32 port;
+ union {
+ __be32 meter_id;
+ __be32 port;
+ };
};
enum NFP_FL_QOS_TYPES {
@@ -46,7 +50,15 @@ enum NFP_FL_QOS_TYPES {
* | Committed Information Rate |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* Word[0](FLag options):
- * [15] p(pps) 1 for pps ,0 for bps
+ * [15] p(pps) 1 for pps, 0 for bps
+ *
+ * Meter control message
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-------------------------------+-+---+-----+-+---------+-+---+-+
+ * | Reserved |p| Y |TYPE |E|TSHFV |P| PC|R|
+ * +-------------------------------+-+---+-----+-+---------+-+---+-+
+ * | meter ID |
+ * +-------------------------------+-------------------------------+
*
*/
struct nfp_police_config {
@@ -67,6 +79,40 @@ struct nfp_police_stats_reply {
__be64 drop_pkts;
};
+int nfp_flower_offload_one_police(struct nfp_app *app, bool ingress,
+ bool pps, u32 id, u32 rate, u32 burst)
+{
+ struct nfp_police_config *config;
+ struct sk_buff *skb;
+
+ skb = nfp_flower_cmsg_alloc(app, sizeof(struct nfp_police_config),
+ NFP_FLOWER_CMSG_TYPE_QOS_MOD, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ config = nfp_flower_cmsg_get_data(skb);
+ memset(config, 0, sizeof(struct nfp_police_config));
+ if (pps)
+ config->head.flags_opts |= cpu_to_be32(NFP_FL_QOS_PPS);
+ if (!ingress)
+ config->head.flags_opts |= cpu_to_be32(NFP_FL_QOS_METER);
+
+ if (ingress)
+ config->head.port = cpu_to_be32(id);
+ else
+ config->head.meter_id = cpu_to_be32(id);
+
+ config->bkt_tkn_p = cpu_to_be32(burst);
+ config->bkt_tkn_c = cpu_to_be32(burst);
+ config->pbs = cpu_to_be32(burst);
+ config->cbs = cpu_to_be32(burst);
+ config->pir = cpu_to_be32(rate);
+ config->cir = cpu_to_be32(rate);
+ nfp_ctrl_tx(app->ctrl, skb);
+
+ return 0;
+}
+
static int
nfp_flower_install_rate_limiter(struct nfp_app *app, struct net_device *netdev,
struct tc_cls_matchall_offload *flow,
@@ -77,14 +123,13 @@ nfp_flower_install_rate_limiter(struct nfp_app *app, struct net_device *netdev,
struct nfp_flower_priv *fl_priv = app->priv;
struct flow_action_entry *action = NULL;
struct nfp_flower_repr_priv *repr_priv;
- struct nfp_police_config *config;
u32 netdev_port_id, i;
struct nfp_repr *repr;
- struct sk_buff *skb;
bool pps_support;
u32 bps_num = 0;
u32 pps_num = 0;
u32 burst;
+ bool pps;
u64 rate;
if (!nfp_netdev_is_nfp_repr(netdev)) {
@@ -169,23 +214,12 @@ nfp_flower_install_rate_limiter(struct nfp_app *app, struct net_device *netdev,
}
if (rate != 0) {
- skb = nfp_flower_cmsg_alloc(repr->app, sizeof(struct nfp_police_config),
- NFP_FLOWER_CMSG_TYPE_QOS_MOD, GFP_KERNEL);
- if (!skb)
- return -ENOMEM;
-
- config = nfp_flower_cmsg_get_data(skb);
- memset(config, 0, sizeof(struct nfp_police_config));
+ pps = false;
if (action->police.rate_pkt_ps > 0)
- config->head.flags_opts = cpu_to_be32(NFP_FL_QOS_PPS);
- config->head.port = cpu_to_be32(netdev_port_id);
- config->bkt_tkn_p = cpu_to_be32(burst);
- config->bkt_tkn_c = cpu_to_be32(burst);
- config->pbs = cpu_to_be32(burst);
- config->cbs = cpu_to_be32(burst);
- config->pir = cpu_to_be32(rate);
- config->cir = cpu_to_be32(rate);
- nfp_ctrl_tx(repr->app->ctrl, skb);
+ pps = true;
+ nfp_flower_offload_one_police(repr->app, true,
+ pps, netdev_port_id,
+ rate, burst);
}
}
repr_priv->qos_table.netdev_port_id = netdev_port_id;
--
2.30.2
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