Hi,
Best Regards,
Mark
> -----Original Message-----
> From: Wang, Xiao W
> Sent: Tuesday, February 02, 2016 6:50 PM
> To: Chen, Jing D
> Cc: dev at dpdk.org; Qiu, Michael; He, Shaopeng; Wang, Xiao W
> Subject: [PATCH v2 1/3] fm10k: enable FTAG based forwarding
>
> This patch enables reading sglort info into mbuf for RX and inserting
> an FTAG at the beginning of the packet for TX. The vlan_tci_outer field
> selected from rte_mbuf structure for sglort is not used in fm10k now.
> In FTAG based forwarding mode, the switch will forward packets according
> to glort info in FTAG rather than mac and vlan table.
>
> To activate this feature, user needs to turn
> ``CONFIG_RTE_LIBRTE_FM10K_FTAG_FWD``
> to y in common_linuxapp or common_bsdapp. Currently this feature is
> supported
> only on PF, because FM10K_PFVTCTL register is read-only for VF.
>
> Signed-off-by: Wang Xiao W <xiao.w.wang at intel.com>
> ---
> config/common_bsdapp | 1 +
> config/common_linuxapp | 1 +
> drivers/net/fm10k/fm10k_ethdev.c | 12 ++++++++++++
> drivers/net/fm10k/fm10k_rxtx.c | 17 +++++++++++++++++
> drivers/net/fm10k/fm10k_rxtx_vec.c | 9 +++++++++
> 5 files changed, 40 insertions(+)
>
> diff --git a/config/common_bsdapp b/config/common_bsdapp
> index ed7c31c..451f81a 100644
> --- a/config/common_bsdapp
> +++ b/config/common_bsdapp
> @@ -208,6 +208,7 @@ CONFIG_RTE_LIBRTE_FM10K_DEBUG_TX=n
> CONFIG_RTE_LIBRTE_FM10K_DEBUG_TX_FREE=n
> CONFIG_RTE_LIBRTE_FM10K_DEBUG_DRIVER=n
> CONFIG_RTE_LIBRTE_FM10K_RX_OLFLAGS_ENABLE=y
> +CONFIG_RTE_LIBRTE_FM10K_FTAG_FWD=n
>
> #
> # Compile burst-oriented Mellanox ConnectX-3 (MLX4) PMD
> diff --git a/config/common_linuxapp b/config/common_linuxapp
> index 74bc515..c928bce 100644
> --- a/config/common_linuxapp
> +++ b/config/common_linuxapp
> @@ -207,6 +207,7 @@ CONFIG_RTE_LIBRTE_FM10K_DEBUG_TX_FREE=n
> CONFIG_RTE_LIBRTE_FM10K_DEBUG_DRIVER=n
> CONFIG_RTE_LIBRTE_FM10K_RX_OLFLAGS_ENABLE=y
> CONFIG_RTE_LIBRTE_FM10K_INC_VECTOR=y
> +CONFIG_RTE_LIBRTE_FM10K_FTAG_FWD=n
>
> #
> # Compile burst-oriented Mellanox ConnectX-3 (MLX4) PMD
> diff --git a/drivers/net/fm10k/fm10k_ethdev.c
> b/drivers/net/fm10k/fm10k_ethdev.c
> index e4aed94..3a15c24 100644
> --- a/drivers/net/fm10k/fm10k_ethdev.c
> +++ b/drivers/net/fm10k/fm10k_ethdev.c
> @@ -668,6 +668,18 @@ fm10k_dev_tx_init(struct rte_eth_dev *dev)
> PMD_INIT_LOG(ERR, "failed to disable queue %d", i);
> return -1;
> }
> +#ifdef RTE_LIBRTE_FM10K_FTAG_FWD
> + /* Enable use of FTAG bit in TX descriptor, PFVTCTL
> + * register is read-only for VF.
> + */
> + if (hw->mac.type == fm10k_mac_pf)
> + FM10K_WRITE_REG(hw, FM10K_PFVTCTL(i),
> +
> FM10K_PFVTCTL_FTAG_DESC_ENABLE);
> + else {
> + PMD_INIT_LOG(ERR, "FTAG is not supported in
> VF.\n");
"\n" is not necessary.
> + return -1;
Return "-ENOTSUP"?
> + }
> +#endif
>
> /* set location and size for descriptor ring */
> FM10K_WRITE_REG(hw, FM10K_TDBAL(i),
