net/gve: allow GVE MTU greater than RTE_ETHER_MTU
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Commit Message
This patch corrects the MTU setting behavior in the GVE DPDK driver to
remove the artificial upper limit of RTE_ETHER_MTU. Instead, the max MTU
is dictated by the default value of the MTU that the device sends during
initialization, which will always be the maximum supported MTU.
Signed-off-by: Joshua Washington <joshwash@google.com>
---
drivers/net/gve/gve_ethdev.c | 5 +++--
drivers/net/gve/gve_ethdev.h | 3 ---
2 files changed, 3 insertions(+), 5 deletions(-)
Comments
On 9/29/2023 9:38 PM, Joshua Washington wrote:
> This patch corrects the MTU setting behavior in the GVE DPDK driver to
> remove the artificial upper limit of RTE_ETHER_MTU. Instead, the max MTU
> is dictated by the default value of the MTU that the device sends during
> initialization, which will always be the maximum supported MTU.
>
> Signed-off-by: Joshua Washington <joshwash@google.com>
>
Fixes: 71dea04cdf9a ("net/gve: support device info and configure")
Cc: stable@dpdk.org
Applied to dpdk-next-net/main, thanks.
@@ -7,6 +7,7 @@
#include "base/gve_register.h"
#include "base/gve_osdep.h"
#include "gve_version.h"
+#include "rte_ether.h"
static void
gve_write_version(uint8_t *driver_version_register)
@@ -297,8 +298,8 @@ gve_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
dev_info->max_tx_queues = priv->max_nb_txq;
dev_info->min_rx_bufsize = GVE_MIN_BUF_SIZE;
dev_info->max_rx_pktlen = GVE_MAX_RX_PKTLEN;
- dev_info->max_mtu = GVE_MAX_MTU;
- dev_info->min_mtu = GVE_MIN_MTU;
+ dev_info->max_mtu = priv->max_mtu;
+ dev_info->min_mtu = RTE_ETHER_MIN_MTU;
dev_info->rx_offload_capa = 0;
dev_info->tx_offload_capa =
@@ -23,9 +23,6 @@
#define GVE_MIN_BUF_SIZE 1024
#define GVE_MAX_RX_PKTLEN 65535
-#define GVE_MAX_MTU RTE_ETHER_MTU
-#define GVE_MIN_MTU RTE_ETHER_MIN_MTU
-
#define GVE_TX_CKSUM_OFFLOAD_MASK ( \
RTE_MBUF_F_TX_L4_MASK | \
RTE_MBUF_F_TX_TCP_SEG)