[Intel-wired-lan] [PATCH iwl-next v4 2/4] ice: Support FCS/CRC strip disable for VF
Ahmed Zaki
ahmed.zaki at intel.com
Fri Sep 1 17:08:48 UTC 2023
From: Haiyue Wang <haiyue.wang at intel.com>
To support CRC strip enable/disable functionality, VF needs the explicit
request VIRTCHNL_VF_OFFLOAD_CRC offload. Then according to crc_disable
flag of Rx queue configuration information to set up the queue context.
Signed-off-by: Haiyue Wang <haiyue.wang at intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg at intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki at intel.com>
---
drivers/net/ethernet/intel/ice/ice_virtchnl.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
index b03426ac932b..c0c3e524c523 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
@@ -486,6 +486,9 @@ static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg)
if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
+ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_CRC)
+ vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_CRC;
+
if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
@@ -1666,6 +1669,18 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr;
vsi->rx_rings[i]->count = qpi->rxq.ring_len;
+ if (qpi->rxq.crc_disable &&
+ !(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_CRC)) {
+ goto error_param;
+ }
+
+ if (qpi->rxq.crc_disable)
+ vsi->rx_rings[q_idx]->flags |=
+ ICE_RX_FLAGS_CRC_STRIP_DIS;
+ else
+ vsi->rx_rings[q_idx]->flags &=
+ ~ICE_RX_FLAGS_CRC_STRIP_DIS;
+
if (qpi->rxq.databuffer_size != 0 &&
(qpi->rxq.databuffer_size > ((16 * 1024) - 128) ||
qpi->rxq.databuffer_size < 1024))
--
2.34.1
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