netdev - [PATCH net-next 03/12] ice: Advertise virtchnl UDP segmentation offload capability

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Message-Id: <20210422173130.1143082-4-anthony.l.nguyen@intel.com>
Date:   Thu, 22 Apr 2021 10:31:21 -0700
From:   Tony Nguyen <anthony.l.nguyen@...el.com>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     Brett Creeley <brett.creeley@...el.com>, netdev@...r.kernel.org,
        sassmann@...hat.com, anthony.l.nguyen@...el.com,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Konrad Jankowski <konrad0.jankowski@...el.com>
Subject: [PATCH net-next 03/12] ice: Advertise virtchnl UDP segmentation offload capability

From: Brett Creeley <brett.creeley@...el.com>

As the hardware is capable of supporting UDP segmentation offload, add a
capability bit to virtchnl.h to communicate this and have the driver
advertise its support.

Suggested-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
Signed-off-by: Brett Creeley <brett.creeley@...el.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 3 +++
 include/linux/avf/virtchnl.h                     | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index ccd6b3e8a5a9..1292a0b06eb5 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -2118,6 +2118,9 @@ static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg)
 	if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
 		vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
 
+	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO)
+		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_USO;
+
 	vfres->num_vsis = 1;
 	/* Tx and Rx queue are equal for VF */
 	vfres->num_queue_pairs = vsi->num_txq;
diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h
index debdd196773b..9e0341cf2c36 100644
--- a/include/linux/avf/virtchnl.h
+++ b/include/linux/avf/virtchnl.h
@@ -251,6 +251,7 @@ VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource);
 #define VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM		0X00200000
 #define VIRTCHNL_VF_OFFLOAD_RX_ENCAP_CSUM	0X00400000
 #define VIRTCHNL_VF_OFFLOAD_ADQ			0X00800000
+#define VIRTCHNL_VF_OFFLOAD_USO			0X02000000
 #define VIRTCHNL_VF_OFFLOAD_FDIR_PF		0X10000000
 
 /* Define below the capability flags that are not offloads */
-- 
2.26.2