From 89de9921dfa77e43b985bde99a6031ab66511020 Mon Sep 17 00:00:00 2001 From: Paul M Stillwell Jr Date: Wed, 6 Sep 2023 13:57:01 -0600 Subject: virtchnl: Add CRC stripping capability Some VFs may want to disable CRC stripping on incoming packets so create an offload for that. The VF already sends information about configuring its RX queues so use that structure to indicate that the CRC stripping should be enabled or not. Signed-off-by: Paul M Stillwell Jr Reviewed-by: Jesse Brandeburg Reviewed-by: Paul Menzel Signed-off-by: Ahmed Zaki Signed-off-by: Tony Nguyen --- include/linux/avf/virtchnl.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'include/linux/avf') diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h index d0807ad43f93..dd71d3009771 100644 --- a/include/linux/avf/virtchnl.h +++ b/include/linux/avf/virtchnl.h @@ -240,6 +240,7 @@ VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource); #define VIRTCHNL_VF_OFFLOAD_REQ_QUEUES BIT(6) /* used to negotiate communicating link speeds in Mbps */ #define VIRTCHNL_VF_CAP_ADV_LINK_SPEED BIT(7) +#define VIRTCHNL_VF_OFFLOAD_CRC BIT(10) #define VIRTCHNL_VF_OFFLOAD_VLAN_V2 BIT(15) #define VIRTCHNL_VF_OFFLOAD_VLAN BIT(16) #define VIRTCHNL_VF_OFFLOAD_RX_POLLING BIT(17) @@ -295,7 +296,13 @@ VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_txq_info); /* VIRTCHNL_OP_CONFIG_RX_QUEUE * VF sends this message to set up parameters for one RX queue. * External data buffer contains one instance of virtchnl_rxq_info. - * PF configures requested queue and returns a status code. + * PF configures requested queue and returns a status code. The + * crc_disable flag disables CRC stripping on the VF. Setting + * the crc_disable flag to 1 will disable CRC stripping for each + * queue in the VF where the flag is set. The VIRTCHNL_VF_OFFLOAD_CRC + * offload must have been set prior to sending this info or the PF + * will ignore the request. This flag should be set the same for + * all of the queues for a VF. */ /* Rx queue config info */ @@ -307,7 +314,7 @@ struct virtchnl_rxq_info { u16 splithdr_enabled; /* deprecated with AVF 1.0 */ u32 databuffer_size; u32 max_pkt_size; - u8 pad0; + u8 crc_disable; u8 rxdid; u8 pad1[2]; u64 dma_ring_addr; -- cgit v1.2.3-73-gaa49b