DPDK patches and discussions
 help / color / mirror / Atom feed
From: gnandiba@amd.com
To: dev@dpdk.org
Cc: Amaranath.Somalapuram@amd.com
Subject: [dpdk-dev] [PATCH v1] net/axgbe: add support for set MTU API
Date: Mon,  1 Jun 2020 20:18:41 +0530
Message-ID: <20200601144841.7814-1-gnandiba@amd.com> (raw)

From: gnandiba <gnandiba@amd.com>

This patch adds support for set_mtu API which can be used to change
the Maximum Transmission unit (MTU) from application.

Signed-off-by: gnandiba <gnandiba@amd.com>
---
 drivers/net/axgbe/axgbe_ethdev.c | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index 867058845..cdb1297f5 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -73,6 +73,7 @@ static void axgbe_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
 static void axgbe_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
 	struct rte_eth_txq_info *qinfo);
 const uint32_t *axgbe_dev_supported_ptypes_get(struct rte_eth_dev *dev);
+static int axgb_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
 
 struct axgbe_xstats {
 	char name[RTE_ETH_XSTATS_NAME_SIZE];
@@ -214,6 +215,7 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
 	.dev_supported_ptypes_get     = axgbe_dev_supported_ptypes_get,
 	.rx_descriptor_status         = axgbe_dev_rx_descriptor_status,
 	.tx_descriptor_status         = axgbe_dev_tx_descriptor_status,
+	.mtu_set		= axgb_mtu_set,
 };
 
 static int axgbe_phy_reset(struct axgbe_port *pdata)
@@ -1254,7 +1256,35 @@ axgbe_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 		return ptypes;
 	return NULL;
 }
-
+static int axgb_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+	struct rte_eth_dev_info dev_info;
+	struct axgbe_port *pdata = dev->data->dev_private;
+	uint32_t frame_size = mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
+	unsigned int val = 0;
+	axgbe_dev_info_get(dev, &dev_info);
+	/* check that mtu is within the allowed range */
+	if ((mtu < RTE_ETHER_MIN_MTU) || (frame_size > dev_info.max_rx_pktlen))
+		return -EINVAL;
+	/* mtu setting is forbidden if port is start */
+	if (dev->data->dev_started) {
+		PMD_DRV_LOG(ERR, "port %d must be stopped before configuration",
+				dev->data->port_id);
+		return -EBUSY;
+	}
+	if (frame_size > RTE_ETHER_MAX_LEN) {
+		dev->data->dev_conf.rxmode.offloads |=
+			DEV_RX_OFFLOAD_JUMBO_FRAME;
+		val = 1;
+	} else {
+		dev->data->dev_conf.rxmode.offloads &=
+			~DEV_RX_OFFLOAD_JUMBO_FRAME;
+		val = 0;
+	}
+	AXGMAC_IOWRITE_BITS(pdata, MAC_RCR, JE, val);
+	dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+	return 0;
+}
 static void axgbe_get_all_hw_features(struct axgbe_port *pdata)
 {
 	unsigned int mac_hfr0, mac_hfr1, mac_hfr2;
-- 
2.17.1


             reply	other threads:[~2020-06-01 14:49 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-01 14:48 gnandiba [this message]
2020-06-04  5:22 ` Somalapuram, Amaranath
2020-06-08  9:08 ` Ferruh Yigit

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200601144841.7814-1-gnandiba@amd.com \
    --to=gnandiba@amd.com \
    --cc=Amaranath.Somalapuram@amd.com \
    --cc=dev@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	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