[dpdk-dev] [PATCH v2 10/20] thunderx/nicvf: add mtu_set and promiscuous_enable support

Jerin Jacob jerin.jacob at caviumnetworks.com
Sun May 29 18:53:05 CEST 2016


Signed-off-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
Signed-off-by: Maciej Czekaj <maciej.czekaj at caviumnetworks.com>
Signed-off-by: Kamil Rytarowski <Kamil.Rytarowski at caviumnetworks.com>
Signed-off-by: Zyta Szpak <zyta.szpak at semihalf.com>
Signed-off-by: Slawomir Rosek <slawomir.rosek at semihalf.com>
Signed-off-by: Radoslaw Biernacki <rad at semihalf.com>
---
 drivers/net/thunderx/nicvf_ethdev.c | 53 +++++++++++++++++++++++++++++++++++++
 drivers/net/thunderx/nicvf_ethdev.h |  2 ++
 2 files changed, 55 insertions(+)

diff --git a/drivers/net/thunderx/nicvf_ethdev.c b/drivers/net/thunderx/nicvf_ethdev.c
index 87286fe..b0f3f5d 100644
--- a/drivers/net/thunderx/nicvf_ethdev.c
+++ b/drivers/net/thunderx/nicvf_ethdev.c
@@ -71,8 +71,10 @@
 
 static int nicvf_dev_configure(struct rte_eth_dev *dev);
 static int nicvf_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete);
+static void nicvf_dev_promisc_enable(struct rte_eth_dev *dev __rte_unused);
 static void nicvf_dev_info_get(struct rte_eth_dev *dev,
 			       struct rte_eth_dev_info *dev_info);
+static int nicvf_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu);
 static int nicvf_dev_reta_update(struct rte_eth_dev *dev,
 				 struct rte_eth_rss_reta_entry64 *reta_conf,
 				 uint16_t reta_size);
@@ -193,6 +195,49 @@ nicvf_dev_link_update(struct rte_eth_dev *dev,
 }
 
 static int
+nicvf_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
+{
+	struct nicvf *nic = nicvf_pmd_priv(dev);
+	uint32_t buffsz, frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
+
+	PMD_INIT_FUNC_TRACE();
+
+	if (frame_size > NIC_HW_MAX_FRS)
+		return -EINVAL;
+
+	if (frame_size < NIC_HW_MIN_FRS)
+		return -EINVAL;
+
+	buffsz = dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM;
+
+	/*
+	 * Refuse mtu that requires the support of scattered packets
+	 * when this feature has not been enabled before.
+	 */
+	if (!dev->data->scattered_rx &&
+		(frame_size + 2 * VLAN_TAG_SIZE > buffsz))
+		return -EINVAL;
+
+	/* check <seg size> * <max_seg>  >= max_frame */
+	if (dev->data->scattered_rx &&
+		(frame_size + 2 * VLAN_TAG_SIZE > buffsz * NIC_HW_MAX_SEGS))
+		return -EINVAL;
+
+	if (frame_size > ETHER_MAX_LEN)
+		dev->data->dev_conf.rxmode.jumbo_frame = 1;
+	else
+		dev->data->dev_conf.rxmode.jumbo_frame = 0;
+
+	if (nicvf_mbox_update_hw_max_frs(nic, frame_size))
+		return -EINVAL;
+
+	/* Update max frame size */
+	dev->data->dev_conf.rxmode.max_rx_pkt_len = (uint32_t)frame_size;
+	nic->mtu = mtu;
+	return 0;
+}
+
+static int
 nicvf_dev_get_reg_length(struct rte_eth_dev *dev  __rte_unused)
 {
 	return nicvf_reg_get_count();
@@ -217,6 +262,12 @@ nicvf_dev_get_regs(struct rte_eth_dev *dev, struct rte_dev_reg_info *regs)
 	return -ENOTSUP;
 }
 
+/* Promiscuous mode enabled by default in LMAC to VF 1:1 map configuration */
+static void
+nicvf_dev_promisc_enable(struct rte_eth_dev *dev __rte_unused)
+{
+}
+
 static inline uint64_t
 nicvf_rss_ethdev_to_nic(struct nicvf *nic, uint64_t ethdev_rss)
 {
@@ -817,7 +868,9 @@ nicvf_dev_configure(struct rte_eth_dev *dev)
 static const struct eth_dev_ops nicvf_eth_dev_ops = {
 	.dev_configure            = nicvf_dev_configure,
 	.link_update              = nicvf_dev_link_update,
+	.promiscuous_enable       = nicvf_dev_promisc_enable,
 	.dev_infos_get            = nicvf_dev_info_get,
+	.mtu_set                  = nicvf_dev_set_mtu,
 	.reta_update              = nicvf_dev_reta_update,
 	.reta_query               = nicvf_dev_reta_query,
 	.rss_hash_update          = nicvf_dev_rss_hash_update,
diff --git a/drivers/net/thunderx/nicvf_ethdev.h b/drivers/net/thunderx/nicvf_ethdev.h
index afb875a..b1af468 100644
--- a/drivers/net/thunderx/nicvf_ethdev.h
+++ b/drivers/net/thunderx/nicvf_ethdev.h
@@ -62,6 +62,8 @@
 #define NICVF_MAX_RX_FREE_THRESH        1024
 #define NICVF_MAX_TX_FREE_THRESH        1024
 
+#define VLAN_TAG_SIZE                   4	/* 802.3ac tag */
+
 static inline struct nicvf *
 nicvf_pmd_priv(struct rte_eth_dev *eth_dev)
 {
-- 
2.5.5



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