From 95a27b3ba5f5bafcfe17bba0f60d1c49f7b4bd20 Mon Sep 17 00:00:00 2001 From: Junyu Jiang Date: Mon, 2 Dec 2019 20:03:27 +0000 Subject: [PATCH] net/ixgbe: enable jumbo frame for VF Enable jumbo frame for VF by configuring DPDK PF. Signed-off-by: Junyu Jiang Acked-by: Wei Zhao --- 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 d0d85e1386..66b856e110 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); } -- 2.20.1