[dpdk-dev,v9,07/22] net/dpaa2: add RSS flow distribution

Message ID 1489756124-10805-8-git-send-email-hemant.agrawal@nxp.com
State Superseded, archived
Delegated to: Ferruh Yigit
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checkpatch success coding style OK
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Commit Message

Hemant Agrawal March 17, 2017, 1:08 p.m.
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 doc/guides/nics/features/dpaa2.ini     |   1 +
 drivers/net/dpaa2/Makefile             |   1 +
 drivers/net/dpaa2/base/dpaa2_hw_dpni.c | 287 +++++++++++++++++++++++++++++++++
 drivers/net/dpaa2/dpaa2_ethdev.c       |  31 +++-
 drivers/net/dpaa2/dpaa2_ethdev.h       |  12 ++
 5 files changed, 328 insertions(+), 4 deletions(-)
 create mode 100644 drivers/net/dpaa2/base/dpaa2_hw_dpni.c

Patch hide | download patch | download mbox

diff --git a/doc/guides/nics/features/dpaa2.ini b/doc/guides/nics/features/dpaa2.ini
index 0b59725..20152a0 100644
--- a/doc/guides/nics/features/dpaa2.ini
+++ b/doc/guides/nics/features/dpaa2.ini
@@ -5,6 +5,7 @@ 
 ;
 [Features]
 Queue start/stop     = Y
+RSS hash             = Y
 Linux VFIO           = Y
 ARMv8                = Y
 Usage doc            = Y
diff --git a/drivers/net/dpaa2/Makefile b/drivers/net/dpaa2/Makefile
index 4f78565..b5f3ebb 100644
--- a/drivers/net/dpaa2/Makefile
+++ b/drivers/net/dpaa2/Makefile
@@ -59,6 +59,7 @@  EXPORT_MAP := rte_pmd_dpaa2_version.map
 # library version
 LIBABIVER := 1
 
+SRCS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += base/dpaa2_hw_dpni.c
 SRCS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += dpaa2_ethdev.c
 SRCS-$(CONFIG_RTE_LIBRTE_DPAA2_PMD) += mc/dpni.c
 
diff --git a/drivers/net/dpaa2/base/dpaa2_hw_dpni.c b/drivers/net/dpaa2/base/dpaa2_hw_dpni.c
new file mode 100644
index 0000000..c95c083
--- /dev/null
+++ b/drivers/net/dpaa2/base/dpaa2_hw_dpni.c
@@ -0,0 +1,287 @@ 
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
+ *   Copyright (c) 2016 NXP. All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Freescale Semiconductor, Inc nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <time.h>
+#include <net/if.h>
+
+#include <rte_mbuf.h>
+#include <rte_ethdev.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_string_fns.h>
+#include <rte_cycles.h>
+#include <rte_kvargs.h>
+#include <rte_dev.h>
+#include <rte_ethdev.h>
+
+#include <fslmc_logs.h>
+#include <dpaa2_hw_pvt.h>
+
+#include "../dpaa2_ethdev.h"
+
+static void
+dpaa2_distset_to_dpkg_profile_cfg(
+		uint32_t req_dist_set,
+		struct dpkg_profile_cfg *kg_cfg);
+
+int
+dpaa2_setup_flow_dist(struct rte_eth_dev *eth_dev,
+		      uint32_t req_dist_set)
+{
+	struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
+	struct fsl_mc_io *dpni = priv->hw;
+	struct dpni_rx_tc_dist_cfg tc_cfg;
+	struct dpkg_profile_cfg kg_cfg;
+	void *p_params;
+	int ret, tc_index = 0;
+
+	p_params = rte_malloc(
+		NULL, DIST_PARAM_IOVA_SIZE, RTE_CACHE_LINE_SIZE);
+	if (!p_params) {
+		RTE_LOG(ERR, PMD, "Memory unavaialble\n");
+		return -ENOMEM;
+	}
+	memset(p_params, 0, DIST_PARAM_IOVA_SIZE);
+	memset(&tc_cfg, 0, sizeof(struct dpni_rx_tc_dist_cfg));
+
+	dpaa2_distset_to_dpkg_profile_cfg(req_dist_set, &kg_cfg);
+	tc_cfg.key_cfg_iova = (uint64_t)(p_params);
+	tc_cfg.dist_size = eth_dev->data->nb_rx_queues;
+	tc_cfg.dist_mode = DPNI_DIST_MODE_HASH;
+
+	ret = dpni_prepare_key_cfg(&kg_cfg, p_params);
+	if (ret) {
+		RTE_LOG(ERR, PMD, "Unable to prepare extract parameters\n");
+		rte_free(p_params);
+		return ret;
+	}
+
+	ret = dpni_set_rx_tc_dist(dpni, CMD_PRI_LOW, priv->token, tc_index,
+				  &tc_cfg);
+	rte_free(p_params);
+	if (ret) {
+		RTE_LOG(ERR, PMD, "Setting distribution for Rx failed with"
+			" err code: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int dpaa2_remove_flow_dist(
+	struct rte_eth_dev *eth_dev,
+	uint8_t tc_index)
+{
+	struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
+	struct fsl_mc_io *dpni = priv->hw;
+	struct dpni_rx_tc_dist_cfg tc_cfg;
+	struct dpkg_profile_cfg kg_cfg;
+	void *p_params;
+	int ret;
+
+	p_params = rte_malloc(
+		NULL, DIST_PARAM_IOVA_SIZE, RTE_CACHE_LINE_SIZE);
+	if (!p_params) {
+		RTE_LOG(ERR, PMD, "Memory unavaialble\n");
+		return -ENOMEM;
+	}
+	memset(p_params, 0, DIST_PARAM_IOVA_SIZE);
+	memset(&tc_cfg, 0, sizeof(struct dpni_rx_tc_dist_cfg));
+
+	tc_cfg.key_cfg_iova = (uint64_t)(p_params);
+	tc_cfg.dist_size = 0;
+	tc_cfg.dist_mode = DPNI_DIST_MODE_NONE;
+
+	ret = dpni_prepare_key_cfg(&kg_cfg, p_params);
+	if (ret) {
+		RTE_LOG(ERR, PMD, "Unable to prepare extract parameters\n");
+		rte_free(p_params);
+		return ret;
+	}
+
+	ret = dpni_set_rx_tc_dist(dpni, CMD_PRI_LOW, priv->token, tc_index,
+				  &tc_cfg);
+	rte_free(p_params);
+	if (ret) {
+		RTE_LOG(ERR, PMD, "Setting distribution for Rx failed with"
+			" err code: %d\n", ret);
+		return ret;
+	}
+	return ret;
+}
+
+static void
+dpaa2_distset_to_dpkg_profile_cfg(
+		uint32_t req_dist_set,
+		struct dpkg_profile_cfg *kg_cfg)
+{
+	uint32_t loop = 0, i = 0, dist_field = 0;
+	int l2_configured = 0, l3_configured = 0;
+	int l4_configured = 0, sctp_configured = 0;
+
+	memset(kg_cfg, 0, sizeof(struct dpkg_profile_cfg));
+	while (req_dist_set) {
+		if (req_dist_set % 2 != 0) {
+			dist_field = 1U << loop;
+			switch (dist_field) {
+			case ETH_RSS_L2_PAYLOAD:
+
+				if (l2_configured)
+					break;
+				l2_configured = 1;
+
+				kg_cfg->extracts[i].extract.from_hdr.prot =
+					NET_PROT_ETH;
+				kg_cfg->extracts[i].extract.from_hdr.field =
+					NH_FLD_ETH_TYPE;
+				kg_cfg->extracts[i].type =
+					DPKG_EXTRACT_FROM_HDR;
+				kg_cfg->extracts[i].extract.from_hdr.type =
+					DPKG_FULL_FIELD;
+				i++;
+			break;
+
+			case ETH_RSS_IPV4:
+			case ETH_RSS_FRAG_IPV4:
+			case ETH_RSS_NONFRAG_IPV4_OTHER:
+			case ETH_RSS_IPV6:
+			case ETH_RSS_FRAG_IPV6:
+			case ETH_RSS_NONFRAG_IPV6_OTHER:
+			case ETH_RSS_IPV6_EX:
+
+				if (l3_configured)
+					break;
+				l3_configured = 1;
+
+				kg_cfg->extracts[i].extract.from_hdr.prot =
+					NET_PROT_IP;
+				kg_cfg->extracts[i].extract.from_hdr.field =
+					NH_FLD_IP_SRC;
+				kg_cfg->extracts[i].type =
+					DPKG_EXTRACT_FROM_HDR;
+				kg_cfg->extracts[i].extract.from_hdr.type =
+					DPKG_FULL_FIELD;
+				i++;
+
+				kg_cfg->extracts[i].extract.from_hdr.prot =
+					NET_PROT_IP;
+				kg_cfg->extracts[i].extract.from_hdr.field =
+					NH_FLD_IP_DST;
+				kg_cfg->extracts[i].type =
+					DPKG_EXTRACT_FROM_HDR;
+				kg_cfg->extracts[i].extract.from_hdr.type =
+					DPKG_FULL_FIELD;
+				i++;
+
+				kg_cfg->extracts[i].extract.from_hdr.prot =
+					NET_PROT_IP;
+				kg_cfg->extracts[i].extract.from_hdr.field =
+					NH_FLD_IP_PROTO;
+				kg_cfg->extracts[i].type =
+					DPKG_EXTRACT_FROM_HDR;
+				kg_cfg->extracts[i].extract.from_hdr.type =
+					DPKG_FULL_FIELD;
+				kg_cfg->num_extracts++;
+				i++;
+			break;
+
+			case ETH_RSS_NONFRAG_IPV4_TCP:
+			case ETH_RSS_NONFRAG_IPV6_TCP:
+			case ETH_RSS_NONFRAG_IPV4_UDP:
+			case ETH_RSS_NONFRAG_IPV6_UDP:
+			case ETH_RSS_IPV6_TCP_EX:
+			case ETH_RSS_IPV6_UDP_EX:
+
+				if (l4_configured)
+					break;
+				l4_configured = 1;
+
+				kg_cfg->extracts[i].extract.from_hdr.prot =
+					NET_PROT_TCP;
+				kg_cfg->extracts[i].extract.from_hdr.field =
+					NH_FLD_TCP_PORT_SRC;
+				kg_cfg->extracts[i].type =
+					DPKG_EXTRACT_FROM_HDR;
+				kg_cfg->extracts[i].extract.from_hdr.type =
+					DPKG_FULL_FIELD;
+				i++;
+
+				kg_cfg->extracts[i].extract.from_hdr.prot =
+					NET_PROT_TCP;
+				kg_cfg->extracts[i].extract.from_hdr.field =
+					NH_FLD_TCP_PORT_SRC;
+				kg_cfg->extracts[i].type =
+					DPKG_EXTRACT_FROM_HDR;
+				kg_cfg->extracts[i].extract.from_hdr.type =
+					DPKG_FULL_FIELD;
+				i++;
+				break;
+
+			case ETH_RSS_NONFRAG_IPV4_SCTP:
+			case ETH_RSS_NONFRAG_IPV6_SCTP:
+
+				if (sctp_configured)
+					break;
+				sctp_configured = 1;
+
+				kg_cfg->extracts[i].extract.from_hdr.prot =
+					NET_PROT_SCTP;
+				kg_cfg->extracts[i].extract.from_hdr.field =
+					NH_FLD_SCTP_PORT_SRC;
+				kg_cfg->extracts[i].type =
+					DPKG_EXTRACT_FROM_HDR;
+				kg_cfg->extracts[i].extract.from_hdr.type =
+					DPKG_FULL_FIELD;
+				i++;
+
+				kg_cfg->extracts[i].extract.from_hdr.prot =
+					NET_PROT_SCTP;
+				kg_cfg->extracts[i].extract.from_hdr.field =
+					NH_FLD_SCTP_PORT_DST;
+				kg_cfg->extracts[i].type =
+					DPKG_EXTRACT_FROM_HDR;
+				kg_cfg->extracts[i].extract.from_hdr.type =
+					DPKG_FULL_FIELD;
+				i++;
+				break;
+
+			default:
+				PMD_DRV_LOG(WARNING, "Bad flow distribution"
+					    " option %x\n", dist_field);
+			}
+		}
+		req_dist_set = req_dist_set >> 1;
+		loop++;
+	}
+	kg_cfg->num_extracts = i;
+}
diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
index ef826fb..266f70b 100644
--- a/drivers/net/dpaa2/dpaa2_ethdev.c
+++ b/drivers/net/dpaa2/dpaa2_ethdev.c
@@ -115,7 +115,8 @@ 
 	}
 
 	vq_id = 0;
-	for (dist_idx = 0; dist_idx < priv->nb_rx_queues; dist_idx++) {
+	for (dist_idx = 0; dist_idx < priv->num_dist_per_tc[DPAA2_DEF_TC];
+	     dist_idx++) {
 		mcq = (struct dpaa2_queue *)priv->rx_vq[vq_id];
 		mcq->tc_index = DPAA2_DEF_TC;
 		mcq->flow_id = dist_idx;
@@ -141,6 +142,7 @@ 
 {
 	struct rte_eth_dev_data *data = dev->data;
 	struct rte_eth_conf *eth_conf = &data->dev_conf;
+	int ret;
 
 	PMD_INIT_FUNC_TRACE();
 
@@ -152,6 +154,18 @@ 
 		return -1;
 	}
 
+	if (eth_conf->rxmode.mq_mode == ETH_MQ_RX_RSS) {
+		/* Return in case number of Rx queues is 1 */
+		if (data->nb_rx_queues == 1)
+			return 0;
+		ret = dpaa2_setup_flow_dist(dev,
+				eth_conf->rx_adv_conf.rss_conf.rss_hf);
+		if (ret) {
+			PMD_INIT_LOG(ERR, "unable to set flow distribution."
+				     "please check queue config\n");
+			return ret;
+		}
+	}
 	return 0;
 }
 
@@ -183,7 +197,7 @@ 
 	dpaa2_q->mb_pool = mb_pool; /**< mbuf pool to populate RX ring. */
 
 	/*Get the tc id and flow id from given VQ id*/
-	flow_id = rx_queue_id;
+	flow_id = rx_queue_id % priv->num_dist_per_tc[dpaa2_q->tc_index];
 	memset(&cfg, 0, sizeof(struct dpni_queue));
 
 	options = options | DPNI_QUEUE_OPT_USER_CTX;
@@ -373,7 +387,7 @@ 
 	struct fsl_mc_io *dpni_dev;
 	struct dpni_attr attr;
 	struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
-	int ret, hw_id;
+	int i, ret, hw_id;
 
 	PMD_INIT_FUNC_TRACE();
 
@@ -415,7 +429,16 @@ 
 	}
 
 	priv->num_tc = attr.num_tcs;
-	priv->nb_rx_queues = attr.num_queues;
+	for (i = 0; i < attr.num_tcs; i++) {
+		priv->num_dist_per_tc[i] = attr.num_queues;
+		break;
+	}
+
+	/* Distribution is per Tc only,
+	 * so choosing RX queues from default TC only
+	 */
+	priv->nb_rx_queues = priv->num_dist_per_tc[DPAA2_DEF_TC];
+
 	priv->nb_tx_queues = attr.num_queues;
 
 	priv->hw = dpni_dev;
diff --git a/drivers/net/dpaa2/dpaa2_ethdev.h b/drivers/net/dpaa2/dpaa2_ethdev.h
index 5f599a7..d24fcc6 100644
--- a/drivers/net/dpaa2/dpaa2_ethdev.h
+++ b/drivers/net/dpaa2/dpaa2_ethdev.h
@@ -37,12 +37,16 @@ 
 #include <mc/fsl_dpni.h>
 #include <mc/fsl_mc_sys.h>
 
+#define MAX_TCS			DPNI_MAX_TC
 #define MAX_RX_QUEUES		16
 #define MAX_TX_QUEUES		16
 
 /*default tc to be used for ,congestion, distribution etc configuration. */
 #define DPAA2_DEF_TC		0
 
+/* Size of the input SMMU mapped memory required by MC */
+#define DIST_PARAM_IOVA_SIZE 256
+
 struct dpaa2_dev_priv {
 	void *hw;
 	int32_t hw_id;
@@ -53,7 +57,15 @@  struct dpaa2_dev_priv {
 	void *rx_vq[MAX_RX_QUEUES];
 	void *tx_vq[MAX_TX_QUEUES];
 
+	uint16_t num_dist_per_tc[MAX_TCS];
 	uint8_t num_tc;
 	uint8_t flags; /*dpaa2 config flags */
 };
+
+int dpaa2_setup_flow_dist(struct rte_eth_dev *eth_dev,
+			  uint32_t req_dist_set);
+
+int dpaa2_remove_flow_dist(struct rte_eth_dev *eth_dev,
+			   uint8_t tc_index);
+
 #endif /* _DPAA2_ETHDEV_H */