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From: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
To: dev@dpdk.org
Cc: Igor Romanov <igor.romanov@oktetlabs.ru>,
	Andy Moreton <amoreton@xilinx.com>,
	Ivan Malov <ivan.malov@oktetlabs.ru>
Subject: [dpdk-dev] [PATCH 25/38] net/sfc: implement representor Rx routine
Date: Fri, 27 Aug 2021 09:57:04 +0300
Message-ID: <20210827065717.1838258-26-andrew.rybchenko@oktetlabs.ru> (raw)
In-Reply-To: <20210827065717.1838258-1-andrew.rybchenko@oktetlabs.ru>

From: Igor Romanov <igor.romanov@oktetlabs.ru>

Implement traffic forwarding for representor and representor proxy
from virtual functions to representor Rx queues.

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
Reviewed-by: Ivan Malov <ivan.malov@oktetlabs.ru>
---
 drivers/net/sfc/sfc_repr.c       |  12 +++
 drivers/net/sfc/sfc_repr_proxy.c | 134 +++++++++++++++++++++++++++++++
 drivers/net/sfc/sfc_repr_proxy.h |  11 +++
 3 files changed, 157 insertions(+)

diff --git a/drivers/net/sfc/sfc_repr.c b/drivers/net/sfc/sfc_repr.c
index e7386fb480..a436b7e5e1 100644
--- a/drivers/net/sfc/sfc_repr.c
+++ b/drivers/net/sfc/sfc_repr.c
@@ -168,6 +168,16 @@ sfc_repr_tx_queue_stop(void *queue)
 	rte_ring_reset(txq->ring);
 }
 
+static uint16_t
+sfc_repr_rx_burst(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
+{
+	struct sfc_repr_rxq *rxq = rx_queue;
+	void **objs = (void *)&rx_pkts[0];
+
+	/* mbufs port is already filled correctly by representors proxy */
+	return rte_ring_sc_dequeue_burst(rxq->ring, objs, nb_pkts, NULL);
+}
+
 static uint16_t
 sfc_repr_tx_burst(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 {
@@ -825,6 +835,7 @@ sfc_repr_dev_close(struct rte_eth_dev *dev)
 
 	(void)sfc_repr_proxy_del_port(srs->pf_port_id, srs->repr_id);
 
+	dev->rx_pkt_burst = NULL;
 	dev->tx_pkt_burst = NULL;
 	dev->dev_ops = NULL;
 
@@ -946,6 +957,7 @@ sfc_repr_eth_dev_init(struct rte_eth_dev *dev, void *init_params)
 		goto fail_mac_addrs;
 	}
 
+	dev->rx_pkt_burst = sfc_repr_rx_burst;
 	dev->tx_pkt_burst = sfc_repr_tx_burst;
 	dev->dev_ops = &sfc_repr_dev_ops;
 
diff --git a/drivers/net/sfc/sfc_repr_proxy.c b/drivers/net/sfc/sfc_repr_proxy.c
index d8934bab65..535b07ea52 100644
--- a/drivers/net/sfc/sfc_repr_proxy.c
+++ b/drivers/net/sfc/sfc_repr_proxy.c
@@ -18,6 +18,7 @@
 #include "sfc_ev.h"
 #include "sfc_rx.h"
 #include "sfc_tx.h"
+#include "sfc_dp_rx.h"
 
 /**
  * Amount of time to wait for the representor proxy routine (which is
@@ -31,6 +32,8 @@
  */
 #define SFC_REPR_PROXY_ROUTINE_TERMINATE_TIMEOUT_MS	10000
 
+#define SFC_REPR_INVALID_ROUTE_PORT_ID  (UINT16_MAX)
+
 static struct sfc_repr_proxy *
 sfc_repr_proxy_by_adapter(struct sfc_adapter *sa)
 {
@@ -187,6 +190,113 @@ sfc_repr_proxy_handle_tx(struct sfc_repr_proxy_dp_txq *rp_txq,
 	}
 }
 
+static struct sfc_repr_proxy_port *
+sfc_repr_proxy_rx_route_mbuf(struct sfc_repr_proxy *rp, struct rte_mbuf *m)
+{
+	struct sfc_repr_proxy_port *port;
+	efx_mport_id_t mport_id;
+
+	mport_id.id = *RTE_MBUF_DYNFIELD(m, sfc_dp_mport_offset,
+					 typeof(&((efx_mport_id_t *)0)->id));
+
+	TAILQ_FOREACH(port, &rp->ports, entries) {
+		if (port->egress_mport.id == mport_id.id) {
+			m->port = port->rte_port_id;
+			m->ol_flags &= ~sfc_dp_mport_override;
+			return port;
+		}
+	}
+
+	return NULL;
+}
+
+/*
+ * Returns true if a packet is encountered which should be forwarded to a
+ * port which is different from the one that is currently routed.
+ */
+static bool
+sfc_repr_proxy_rx_route(struct sfc_repr_proxy *rp,
+			struct sfc_repr_proxy_dp_rxq *rp_rxq)
+{
+	unsigned int i;
+
+	for (i = rp_rxq->routed;
+	     i < rp_rxq->available && !rp_rxq->stop_route;
+	     i++, rp_rxq->routed++) {
+		struct sfc_repr_proxy_port *port;
+		struct rte_mbuf *m = rp_rxq->pkts[i];
+
+		port = sfc_repr_proxy_rx_route_mbuf(rp, m);
+		/* Cannot find destination representor */
+		if (port == NULL) {
+			/* Effectively drop the packet */
+			rp_rxq->forwarded++;
+			continue;
+		}
+
+		/* Currently routed packets are mapped to a different port */
+		if (port->repr_id != rp_rxq->route_port_id &&
+		    rp_rxq->route_port_id != SFC_REPR_INVALID_ROUTE_PORT_ID)
+			return true;
+
+		rp_rxq->route_port_id = port->repr_id;
+	}
+
+	return false;
+}
+
+static void
+sfc_repr_proxy_rx_forward(struct sfc_repr_proxy *rp,
+			  struct sfc_repr_proxy_dp_rxq *rp_rxq)
+{
+	struct sfc_repr_proxy_port *port;
+
+	if (rp_rxq->route_port_id != SFC_REPR_INVALID_ROUTE_PORT_ID) {
+		port = sfc_repr_proxy_find_port(rp, rp_rxq->route_port_id);
+
+		if (port != NULL && port->started) {
+			rp_rxq->forwarded +=
+			    rte_ring_sp_enqueue_burst(port->rxq[0].ring,
+				(void **)(&rp_rxq->pkts[rp_rxq->forwarded]),
+				rp_rxq->routed - rp_rxq->forwarded, NULL);
+		} else {
+			/* Drop all routed packets if the port is not started */
+			rp_rxq->forwarded = rp_rxq->routed;
+		}
+	}
+
+	if (rp_rxq->forwarded == rp_rxq->routed) {
+		rp_rxq->route_port_id = SFC_REPR_INVALID_ROUTE_PORT_ID;
+		rp_rxq->stop_route = false;
+	} else {
+		/* Stall packet routing if not all packets were forwarded */
+		rp_rxq->stop_route = true;
+	}
+
+	if (rp_rxq->available == rp_rxq->forwarded)
+		rp_rxq->available = rp_rxq->forwarded = rp_rxq->routed = 0;
+}
+
+static void
+sfc_repr_proxy_handle_rx(struct sfc_repr_proxy *rp,
+			 struct sfc_repr_proxy_dp_rxq *rp_rxq)
+{
+	bool route_again;
+
+	if (rp_rxq->available < RTE_DIM(rp_rxq->pkts)) {
+		rp_rxq->available += rp_rxq->pkt_burst(rp_rxq->dp,
+				&rp_rxq->pkts[rp_rxq->available],
+				RTE_DIM(rp_rxq->pkts) - rp_rxq->available);
+		if (rp_rxq->available == rp_rxq->forwarded)
+			return;
+	}
+
+	do {
+		route_again = sfc_repr_proxy_rx_route(rp, rp_rxq);
+		sfc_repr_proxy_rx_forward(rp, rp_rxq);
+	} while (route_again && !rp_rxq->stop_route);
+}
+
 static int32_t
 sfc_repr_proxy_routine(void *arg)
 {
@@ -204,6 +314,9 @@ sfc_repr_proxy_routine(void *arg)
 			sfc_repr_proxy_handle_tx(&rp->dp_txq[i], &port->txq[i]);
 	}
 
+	for (i = 0; i < rp->nb_rxq; i++)
+		sfc_repr_proxy_handle_rx(rp, &rp->dp_rxq[i]);
+
 	return 0;
 }
 
@@ -412,6 +525,18 @@ sfc_repr_proxy_rxq_detach(struct sfc_adapter *sa)
 	sfc_log_init(sa, "done");
 }
 
+static struct sfc_rxq_info *
+sfc_repr_proxy_rxq_info_get(struct sfc_adapter *sa, unsigned int repr_queue_id)
+{
+	struct sfc_adapter_shared *sas = sfc_sa2shared(sa);
+	struct sfc_repr_proxy_dp_rxq *dp_rxq;
+
+	SFC_ASSERT(repr_queue_id < sfc_repr_nb_rxq(sas));
+	dp_rxq = &sa->repr_proxy.dp_rxq[repr_queue_id];
+
+	return &sas->rxq_info[dp_rxq->sw_index];
+}
+
 static int
 sfc_repr_proxy_rxq_init(struct sfc_adapter *sa,
 			struct sfc_repr_proxy_dp_rxq *rxq)
@@ -539,6 +664,14 @@ sfc_repr_proxy_rxq_start(struct sfc_adapter *sa)
 				i);
 			goto fail_start;
 		}
+
+		rxq->dp = sfc_repr_proxy_rxq_info_get(sa, i)->dp;
+		rxq->pkt_burst = sa->eth_dev->rx_pkt_burst;
+		rxq->available = 0;
+		rxq->routed = 0;
+		rxq->forwarded = 0;
+		rxq->stop_route = false;
+		rxq->route_port_id = SFC_REPR_INVALID_ROUTE_PORT_ID;
 	}
 
 	sfc_log_init(sa, "done");
@@ -993,6 +1126,7 @@ sfc_repr_proxy_start(struct sfc_adapter *sa)
 		goto fail_txq_start;
 
 	rp->nb_txq = sfc_repr_nb_txq(sas);
+	rp->nb_rxq = sfc_repr_nb_rxq(sas);
 
 	/* Service core may be in "stopped" state, start it */
 	rc = rte_service_lcore_start(rp->service_core_id);
diff --git a/drivers/net/sfc/sfc_repr_proxy.h b/drivers/net/sfc/sfc_repr_proxy.h
index d47e0a431a..b49b1a2a96 100644
--- a/drivers/net/sfc/sfc_repr_proxy.h
+++ b/drivers/net/sfc/sfc_repr_proxy.h
@@ -75,6 +75,16 @@ struct sfc_repr_proxy_dp_rxq {
 	struct rte_mempool		*mp;
 	unsigned int			ref_count;
 
+	eth_rx_burst_t			pkt_burst;
+	struct sfc_dp_rxq		*dp;
+
+	uint16_t			route_port_id;
+	bool				stop_route;
+	unsigned int			available;
+	unsigned int			forwarded;
+	unsigned int			routed;
+	struct rte_mbuf			*pkts[SFC_REPR_PROXY_TX_BURST];
+
 	sfc_sw_index_t			sw_index;
 };
 
@@ -118,6 +128,7 @@ struct sfc_repr_proxy {
 
 	struct sfc_repr_proxy_mbox	mbox;
 	unsigned int			nb_txq;
+	unsigned int			nb_rxq;
 };
 
 struct sfc_adapter;
-- 
2.30.2


  parent reply	other threads:[~2021-08-27  7:00 UTC|newest]

Thread overview: 79+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-27  6:56 [dpdk-dev] [PATCH 00/38] net/sfc: support port representors Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 01/38] common/sfc_efx/base: update MCDI headers Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 02/38] common/sfc_efx/base: update EF100 registers definitions Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 03/38] net/sfc: add switch mode device argument Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 04/38] net/sfc: insert switchdev mode MAE rules Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 05/38] common/sfc_efx/base: add an API to get mport ID by selector Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 06/38] net/sfc: support EF100 Tx override prefix Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 07/38] net/sfc: add representors proxy infrastructure Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 08/38] net/sfc: reserve TxQ and RxQ for port representors Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 09/38] net/sfc: move adapter state enum to separate header Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 10/38] common/sfc_efx/base: allow creating invalid mport selectors Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 11/38] net/sfc: add port representors infrastructure Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 12/38] common/sfc_efx/base: add filter ingress mport matching field Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 13/38] common/sfc_efx/base: add API to get mport selector by ID Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 14/38] common/sfc_efx/base: add mport alias MCDI wrappers Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 15/38] net/sfc: add representor proxy port API Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 16/38] net/sfc: implement representor queue setup and release Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 17/38] net/sfc: implement representor RxQ start/stop Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 18/38] net/sfc: implement representor TxQ start/stop Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 19/38] net/sfc: implement port representor start and stop Andrew Rybchenko
2021-08-27  6:56 ` [dpdk-dev] [PATCH 20/38] net/sfc: implement port representor link update Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 21/38] net/sfc: support multiple device probe Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 22/38] net/sfc: implement representor Tx routine Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 23/38] net/sfc: use xword type for EF100 Rx prefix Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 24/38] net/sfc: handle ingress m-port in " Andrew Rybchenko
2021-08-27  6:57 ` Andrew Rybchenko [this message]
2021-08-27  6:57 ` [dpdk-dev] [PATCH 26/38] net/sfc: add simple port representor statistics Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 27/38] net/sfc: free MAE lock once switch domain is assigned Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 28/38] common/sfc_efx/base: add multi-host function M-port selector Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 29/38] common/sfc_efx/base: retrieve function interfaces for VNICs Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 30/38] common/sfc_efx/base: add a means to read MAE mport journal Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 31/38] common/sfc_efx/base: allow getting VNIC MCDI client handles Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 32/38] net/sfc: maintain controller to EFX interface mapping Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 33/38] net/sfc: store PCI address for represented entities Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 34/38] net/sfc: include controller and port in representor name Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 35/38] net/sfc: support new representor parameter syntax Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 36/38] net/sfc: use switch port ID as representor ID Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 37/38] net/sfc: implement the representor info API Andrew Rybchenko
2021-08-27  6:57 ` [dpdk-dev] [PATCH 38/38] net/sfc: update comment about representor support Andrew Rybchenko
2021-10-11 14:48 ` [dpdk-dev] [PATCH v2 00/38] net/sfc: support port representors Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 01/38] common/sfc_efx/base: update MCDI headers Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 02/38] common/sfc_efx/base: update EF100 registers definitions Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 03/38] net/sfc: add switch mode device argument Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 04/38] net/sfc: insert switchdev mode MAE rules Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 05/38] common/sfc_efx/base: add an API to get mport ID by selector Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 06/38] net/sfc: support EF100 Tx override prefix Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 07/38] net/sfc: add representors proxy infrastructure Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 08/38] net/sfc: reserve TxQ and RxQ for port representors Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 09/38] net/sfc: move adapter state enum to separate header Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 10/38] common/sfc_efx/base: allow creating invalid mport selectors Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 11/38] net/sfc: add port representors infrastructure Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 12/38] common/sfc_efx/base: add filter ingress mport matching field Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 13/38] common/sfc_efx/base: add API to get mport selector by ID Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 14/38] common/sfc_efx/base: add mport alias MCDI wrappers Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 15/38] net/sfc: add representor proxy port API Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 16/38] net/sfc: implement representor queue setup and release Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 17/38] net/sfc: implement representor RxQ start/stop Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 18/38] net/sfc: implement representor TxQ start/stop Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 19/38] net/sfc: implement port representor start and stop Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 20/38] net/sfc: implement port representor link update Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 21/38] net/sfc: support multiple device probe Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 22/38] net/sfc: implement representor Tx routine Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 23/38] net/sfc: use xword type for EF100 Rx prefix Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 24/38] net/sfc: handle ingress m-port in " Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 25/38] net/sfc: implement representor Rx routine Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 26/38] net/sfc: add simple port representor statistics Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 27/38] net/sfc: free MAE lock once switch domain is assigned Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 28/38] common/sfc_efx/base: add multi-host function M-port selector Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 29/38] common/sfc_efx/base: retrieve function interfaces for VNICs Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 30/38] common/sfc_efx/base: add a means to read MAE mport journal Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 31/38] common/sfc_efx/base: allow getting VNIC MCDI client handles Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 32/38] net/sfc: maintain controller to EFX interface mapping Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 33/38] net/sfc: store PCI address for represented entities Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 34/38] net/sfc: include controller and port in representor name Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 35/38] net/sfc: support new representor parameter syntax Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 36/38] net/sfc: use switch port ID as representor ID Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 37/38] net/sfc: implement the representor info API Andrew Rybchenko
2021-10-11 14:48   ` [dpdk-dev] [PATCH v2 38/38] net/sfc: update comment about representor support Andrew Rybchenko
2021-10-12 16:45   ` [dpdk-dev] [PATCH v2 00/38] net/sfc: support port representors Ferruh Yigit

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	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git