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From: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
To: dev@dpdk.org
Cc: David Marchand <david.marchand@redhat.com>,
	Igor Romanov <igor.romanov@oktetlabs.ru>,
	Andy Moreton <amoreton@xilinx.com>,
	Ivan Malov <ivan.malov@oktetlabs.ru>
Subject: [dpdk-dev] [PATCH v3 16/20] net/sfc: add Rx datapath method to get pushed buffers count
Date: Fri, 18 Jun 2021 16:40:28 +0300
Message-ID: <20210618134032.1922012-17-andrew.rybchenko@oktetlabs.ru> (raw)
In-Reply-To: <20210618134032.1922012-1-andrew.rybchenko@oktetlabs.ru>

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

The information about the number of pushed Rx buffers is required
for counter Rx queue to know when to give credits to counter
stream.

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_dp_rx.h    |  4 ++++
 drivers/net/sfc/sfc_ef100_rx.c | 15 +++++++++++++++
 drivers/net/sfc/sfc_rx.c       |  9 +++++++++
 drivers/net/sfc/sfc_rx.h       |  3 +++
 4 files changed, 31 insertions(+)

diff --git a/drivers/net/sfc/sfc_dp_rx.h b/drivers/net/sfc/sfc_dp_rx.h
index 3f6857b1ff..b6c44085ce 100644
--- a/drivers/net/sfc/sfc_dp_rx.h
+++ b/drivers/net/sfc/sfc_dp_rx.h
@@ -204,6 +204,9 @@ typedef int (sfc_dp_rx_intr_enable_t)(struct sfc_dp_rxq *dp_rxq);
 /** Disable Rx interrupts */
 typedef int (sfc_dp_rx_intr_disable_t)(struct sfc_dp_rxq *dp_rxq);
 
+/** Get number of pushed Rx buffers */
+typedef unsigned int (sfc_dp_rx_get_pushed_t)(struct sfc_dp_rxq *dp_rxq);
+
 /** Receive datapath definition */
 struct sfc_dp_rx {
 	struct sfc_dp				dp;
@@ -238,6 +241,7 @@ struct sfc_dp_rx {
 	sfc_dp_rx_qdesc_status_t		*qdesc_status;
 	sfc_dp_rx_intr_enable_t			*intr_enable;
 	sfc_dp_rx_intr_disable_t		*intr_disable;
+	sfc_dp_rx_get_pushed_t			*get_pushed;
 	eth_rx_burst_t				pkt_burst;
 };
 
diff --git a/drivers/net/sfc/sfc_ef100_rx.c b/drivers/net/sfc/sfc_ef100_rx.c
index 8cde24c585..7447f8b9de 100644
--- a/drivers/net/sfc/sfc_ef100_rx.c
+++ b/drivers/net/sfc/sfc_ef100_rx.c
@@ -892,6 +892,20 @@ sfc_ef100_rx_intr_disable(struct sfc_dp_rxq *dp_rxq)
 	return 0;
 }
 
+static sfc_dp_rx_get_pushed_t sfc_ef100_rx_get_pushed;
+static unsigned int
+sfc_ef100_rx_get_pushed(struct sfc_dp_rxq *dp_rxq)
+{
+	struct sfc_ef100_rxq *rxq = sfc_ef100_rxq_by_dp_rxq(dp_rxq);
+
+	/*
+	 * The datapath keeps track only of added descriptors, since
+	 * the number of pushed descriptors always equals the number
+	 * of added descriptors due to enforced alignment.
+	 */
+	return rxq->added;
+}
+
 struct sfc_dp_rx sfc_ef100_rx = {
 	.dp = {
 		.name		= SFC_KVARG_DATAPATH_EF100,
@@ -919,5 +933,6 @@ struct sfc_dp_rx sfc_ef100_rx = {
 	.qdesc_status		= sfc_ef100_rx_qdesc_status,
 	.intr_enable		= sfc_ef100_rx_intr_enable,
 	.intr_disable		= sfc_ef100_rx_intr_disable,
+	.get_pushed		= sfc_ef100_rx_get_pushed,
 	.pkt_burst		= sfc_ef100_recv_pkts,
 };
diff --git a/drivers/net/sfc/sfc_rx.c b/drivers/net/sfc/sfc_rx.c
index 0532f77082..f6a8ac68e8 100644
--- a/drivers/net/sfc/sfc_rx.c
+++ b/drivers/net/sfc/sfc_rx.c
@@ -53,6 +53,15 @@ sfc_rx_qflush_failed(struct sfc_rxq_info *rxq_info)
 	rxq_info->state &= ~SFC_RXQ_FLUSHING;
 }
 
+/* This returns the running counter, which is not bounded by ring size */
+unsigned int
+sfc_rx_get_pushed(struct sfc_adapter *sa, struct sfc_dp_rxq *dp_rxq)
+{
+	SFC_ASSERT(sa->priv.dp_rx->get_pushed != NULL);
+
+	return sa->priv.dp_rx->get_pushed(dp_rxq);
+}
+
 static int
 sfc_efx_rx_qprime(struct sfc_efx_rxq *rxq)
 {
diff --git a/drivers/net/sfc/sfc_rx.h b/drivers/net/sfc/sfc_rx.h
index e5a6fde79b..4ab513915e 100644
--- a/drivers/net/sfc/sfc_rx.h
+++ b/drivers/net/sfc/sfc_rx.h
@@ -145,6 +145,9 @@ uint64_t sfc_rx_get_queue_offload_caps(struct sfc_adapter *sa);
 void sfc_rx_qflush_done(struct sfc_rxq_info *rxq_info);
 void sfc_rx_qflush_failed(struct sfc_rxq_info *rxq_info);
 
+unsigned int sfc_rx_get_pushed(struct sfc_adapter *sa,
+			       struct sfc_dp_rxq *dp_rxq);
+
 int sfc_rx_hash_init(struct sfc_adapter *sa);
 void sfc_rx_hash_fini(struct sfc_adapter *sa);
 int sfc_rx_hf_rte_to_efx(struct sfc_adapter *sa, uint64_t rte,
-- 
2.30.2


  parent reply	other threads:[~2021-06-18 13:42 UTC|newest]

Thread overview: 104+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-27 15:24 [dpdk-dev] [PATCH 00/20] net/sfc: support flow API COUNT action Andrew Rybchenko
2021-05-27 15:24 ` [dpdk-dev] [PATCH 01/20] net/sfc: introduce ethdev Rx queue ID Andrew Rybchenko
2021-05-27 15:24 ` [dpdk-dev] [PATCH 02/20] net/sfc: do not enable interrupts on internal Rx queues Andrew Rybchenko
2021-05-27 15:24 ` [dpdk-dev] [PATCH 03/20] common/sfc_efx/base: separate target EvQ and IRQ config Andrew Rybchenko
2021-05-27 15:24 ` [dpdk-dev] [PATCH 04/20] common/sfc_efx/base: support custom EvQ to IRQ mapping Andrew Rybchenko
2021-05-27 15:24 ` [dpdk-dev] [PATCH 05/20] net/sfc: explicitly control IRQ used for Rx queues Andrew Rybchenko
2021-05-27 15:24 ` [dpdk-dev] [PATCH 06/20] net/sfc: introduce ethdev Tx queue ID Andrew Rybchenko
2021-05-27 15:24 ` [dpdk-dev] [PATCH 07/20] common/sfc_efx/base: add ingress m-port RxQ flag Andrew Rybchenko
2021-05-27 15:24 ` [dpdk-dev] [PATCH 08/20] common/sfc_efx/base: add user mark " Andrew Rybchenko
2021-05-27 15:24 ` [dpdk-dev] [PATCH 09/20] net/sfc: add abstractions for the management EVQ identity Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 10/20] net/sfc: add support for initialising different RxQ types Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 11/20] net/sfc: add NUMA-aware registry of service logical cores Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 12/20] net/sfc: reserve RxQ for counters Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 13/20] common/sfc_efx/base: add counter creation MCDI wrappers Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 14/20] common/sfc_efx/base: add counter stream " Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 15/20] common/sfc_efx/base: support counter in action set Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 16/20] net/sfc: add Rx datapath method to get pushed buffers count Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 17/20] common/sfc_efx/base: add max MAE counters to limits Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 18/20] common/sfc_efx/base: add packetiser packet format definition Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 19/20] net/sfc: support flow action COUNT in transfer rules Andrew Rybchenko
2021-05-27 15:25 ` [dpdk-dev] [PATCH 20/20] net/sfc: support flow API query for count actions Andrew Rybchenko
2021-06-04 14:23 ` [dpdk-dev] [PATCH v2 00/20] net/sfc: support flow API COUNT action Andrew Rybchenko
2021-06-04 14:23   ` [dpdk-dev] [PATCH v2 01/20] net/sfc: introduce ethdev Rx queue ID Andrew Rybchenko
2021-06-04 14:23   ` [dpdk-dev] [PATCH v2 02/20] net/sfc: do not enable interrupts on internal Rx queues Andrew Rybchenko
2021-06-04 14:23   ` [dpdk-dev] [PATCH v2 03/20] common/sfc_efx/base: separate target EvQ and IRQ config Andrew Rybchenko
2021-06-04 14:23   ` [dpdk-dev] [PATCH v2 04/20] common/sfc_efx/base: support custom EvQ to IRQ mapping Andrew Rybchenko
2021-06-04 14:23   ` [dpdk-dev] [PATCH v2 05/20] net/sfc: explicitly control IRQ used for Rx queues Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 06/20] net/sfc: introduce ethdev Tx queue ID Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 07/20] common/sfc_efx/base: add ingress m-port RxQ flag Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 08/20] common/sfc_efx/base: add user mark " Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 09/20] net/sfc: add abstractions for the management EVQ identity Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 10/20] net/sfc: add support for initialising different RxQ types Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 11/20] net/sfc: add NUMA-aware registry of service logical cores Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 12/20] net/sfc: reserve RxQ for counters Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 13/20] common/sfc_efx/base: add counter creation MCDI wrappers Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 14/20] common/sfc_efx/base: add counter stream " Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 15/20] common/sfc_efx/base: support counter in action set Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 16/20] net/sfc: add Rx datapath method to get pushed buffers count Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 17/20] common/sfc_efx/base: add max MAE counters to limits Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 18/20] common/sfc_efx/base: add packetiser packet format definition Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 19/20] net/sfc: support flow action COUNT in transfer rules Andrew Rybchenko
2021-06-04 14:24   ` [dpdk-dev] [PATCH v2 20/20] net/sfc: support flow API query for count actions Andrew Rybchenko
2021-06-17  8:37   ` [dpdk-dev] [PATCH v2 00/20] net/sfc: support flow API COUNT action David Marchand
2021-06-18 13:40     ` Andrew Rybchenko
2021-06-18 13:40 ` [dpdk-dev] [PATCH v3 " Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 01/20] net/sfc: introduce ethdev Rx queue ID Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 02/20] net/sfc: do not enable interrupts on internal Rx queues Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 03/20] common/sfc_efx/base: separate target EvQ and IRQ config Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 04/20] common/sfc_efx/base: support custom EvQ to IRQ mapping Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 05/20] net/sfc: explicitly control IRQ used for Rx queues Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 06/20] net/sfc: introduce ethdev Tx queue ID Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 07/20] common/sfc_efx/base: add ingress m-port RxQ flag Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 08/20] common/sfc_efx/base: add user mark " Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 09/20] net/sfc: add abstractions for the management EVQ identity Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 10/20] net/sfc: add support for initialising different RxQ types Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 11/20] net/sfc: add NUMA-aware registry of service logical cores Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 12/20] net/sfc: reserve RxQ for counters Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 13/20] common/sfc_efx/base: add counter creation MCDI wrappers Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 14/20] common/sfc_efx/base: add counter stream " Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 15/20] common/sfc_efx/base: support counter in action set Andrew Rybchenko
2021-06-18 13:40   ` Andrew Rybchenko [this message]
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 17/20] common/sfc_efx/base: add max MAE counters to limits Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 18/20] common/sfc_efx/base: add packetiser packet format definition Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 19/20] net/sfc: support flow action COUNT in transfer rules Andrew Rybchenko
2021-06-21  8:28     ` David Marchand
2021-06-21  9:30       ` Thomas Monjalon
2021-07-01  9:22         ` Andrew Rybchenko
2021-07-01 12:34           ` David Marchand
2021-07-01 13:05             ` Andrew Rybchenko
2021-07-01 13:35               ` Bruce Richardson
2021-07-02  8:03                 ` Andrew Rybchenko
2021-07-02  8:43               ` Andrew Rybchenko
2021-07-02 12:30                 ` Thomas Monjalon
2021-07-02 12:53                   ` Andrew Rybchenko
2021-07-04 19:45                     ` Thomas Monjalon
2021-07-05  8:41                       ` Andrew Rybchenko
2021-07-02 13:37                 ` David Marchand
2021-07-02 13:39                   ` Andrew Rybchenko
2021-06-18 13:40   ` [dpdk-dev] [PATCH v3 20/20] net/sfc: support flow API query for count actions Andrew Rybchenko
2021-07-02  8:39 ` [dpdk-dev] [PATCH v4 00/20] net/sfc: support flow API COUNT action Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 01/20] net/sfc: introduce ethdev Rx queue ID Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 02/20] net/sfc: do not enable interrupts on internal Rx queues Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 03/20] common/sfc_efx/base: separate target EvQ and IRQ config Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 04/20] common/sfc_efx/base: support custom EvQ to IRQ mapping Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 05/20] net/sfc: explicitly control IRQ used for Rx queues Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 06/20] net/sfc: introduce ethdev Tx queue ID Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 07/20] common/sfc_efx/base: add ingress m-port RxQ flag Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 08/20] common/sfc_efx/base: add user mark " Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 09/20] net/sfc: add abstractions for the management EVQ identity Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 10/20] net/sfc: add support for initialising different RxQ types Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 11/20] net/sfc: add NUMA-aware registry of service logical cores Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 12/20] net/sfc: reserve RxQ for counters Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 13/20] common/sfc_efx/base: add counter creation MCDI wrappers Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 14/20] common/sfc_efx/base: add counter stream " Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 15/20] common/sfc_efx/base: support counter in action set Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 16/20] net/sfc: add Rx datapath method to get pushed buffers count Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 17/20] common/sfc_efx/base: add max MAE counters to limits Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 18/20] common/sfc_efx/base: add packetiser packet format definition Andrew Rybchenko
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 19/20] net/sfc: support flow action COUNT in transfer rules Andrew Rybchenko
2021-07-15 14:58     ` David Marchand
2021-07-15 18:30       ` Ivan Malov
2021-07-16 12:12     ` David Marchand
2021-07-02  8:39   ` [dpdk-dev] [PATCH v4 20/20] net/sfc: support flow API query for count actions Andrew Rybchenko
2021-07-20 12:19   ` [dpdk-dev] [PATCH v4 00/20] net/sfc: support flow API COUNT action David Marchand

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