Acked-by: Wei Zhao <wei.zh...@intel.com>
> -----Original Message-----
> From: dev <dev-boun...@dpdk.org> On Behalf Of Junyu Jiang
> Sent: Tuesday, December 3, 2019 4:03 AM
> To: dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo...@intel.com>; Yang, Qiming
> <qiming.y...@intel.com>; Jiang, JunyuX <junyux.ji...@intel.com>
> Subject: [dpdk-dev] [PATCH] net/ixgbe: enable jumbo frame for VF
>
> Enable jumbo frame for VF by configuring DPDK PF.
>
> Signed-off-by: Junyu Jiang <junyux.ji...@intel.com>
> ---
> drivers/net/ixgbe/ixgbe_pf.c | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/drivers/net/ixgbe/ixgbe_pf.c b/drivers/net/ixgbe/ixgbe_pf.c index
> d0d85e138..66b856e11 100644
> --- a/drivers/net/ixgbe/ixgbe_pf.c
> +++ b/drivers/net/ixgbe/ixgbe_pf.c
> @@ -544,6 +544,7 @@ ixgbe_set_vf_lpe(struct rte_eth_dev *dev,
> __rte_unused uint32_t vf, uint32_t *ms
> struct ixgbe_hw *hw =
> IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> uint32_t new_mtu = msgbuf[1];
> uint32_t max_frs;
> + uint32_t hlreg0;
> int max_frame = new_mtu + RTE_ETHER_HDR_LEN +
> RTE_ETHER_CRC_LEN;
>
> /* X540 and X550 support jumbo frames in IOV mode */ @@ -560,6
> +561,18 @@ ixgbe_set_vf_lpe(struct rte_eth_dev *dev, __rte_unused
> uint32_t vf, uint32_t *ms
> max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) &
> IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT;
> if (max_frs < new_mtu) {
> + hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
> + if (new_mtu > RTE_ETHER_MAX_LEN) {
> + dev->data->dev_conf.rxmode.offloads |=
> + DEV_RX_OFFLOAD_JUMBO_FRAME;
> + hlreg0 |= IXGBE_HLREG0_JUMBOEN;
> + } else {
> + dev->data->dev_conf.rxmode.offloads &=
> + ~DEV_RX_OFFLOAD_JUMBO_FRAME;
> + hlreg0 &= ~IXGBE_HLREG0_JUMBOEN;
> + }
> + IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
> +
> max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT;
> IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
> }
> --
> 2.17.1
