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From: Srikanth Kaka <srikanth.k@oneconvergence.com>
To: Matan Azrad <matan@nvidia.com>,
Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Cc: dev@dpdk.org, Vag Singh <vag.singh@oneconvergence.com>,
Anand Thulasiram <avelu@juniper.net>,
Srikanth Kaka <srikanth.k@oneconvergence.com>
Date: Fri, 8 Oct 2021 00:13:28 +0530
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Subject: [dpdk-dev] [PATCH v2 19/41] net/mlx5: add get MTU
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MTU is retrieved by making an IOCTL call
Signed-off-by: Srikanth Kaka <srikanth.k@oneconvergence.com>
Signed-off-by: Vag Singh <vag.singh@oneconvergence.com>
Signed-off-by: Anand Thulasiram <avelu@juniper.net>
---
drivers/net/mlx5/freebsd/mlx5_ethdev_os.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/drivers/net/mlx5/freebsd/mlx5_ethdev_os.c b/drivers/net/mlx5/freebsd/mlx5_ethdev_os.c
index 9aa38de649..b470c4ddec 100644
--- a/drivers/net/mlx5/freebsd/mlx5_ethdev_os.c
+++ b/drivers/net/mlx5/freebsd/mlx5_ethdev_os.c
@@ -96,6 +96,29 @@ mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr)
return mlx5_ifreq_by_ifname(ifname, req, ifr);
}
+/**
+ * Get device MTU.
+ *
+ * @param dev
+ * Pointer to Ethernet device.
+ * @param[out] mtu
+ * MTU value output buffer.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu)
+{
+ struct ifreq request;
+ int ret = mlx5_ifreq(dev, SIOCGIFMTU, &request);
+
+ if (ret)
+ return ret;
+ *mtu = request.ifr_mtu;
+ return 0;
+}
+
/**
* Get MAC address by querying netdevice.
*
--
2.30.2