From c7cb9dfc57a2aff7a7f270c883cbe0f5cd3f68e1 Mon Sep 17 00:00:00 2001 From: Marcin Szycik Date: Mon, 7 Nov 2022 17:10:38 +0100 Subject: [PATCH] ice: Fix configuring VIRTCHNL_OP_CONFIG_VSI_QUEUES with unbalanced queues Currently the VIRTCHNL_OP_CONFIG_VSI_QUEUES command may fail if there are less RX queues than TX queues requested. To fix it, only configure RXDID if RX queue exists. Fixes: e753df8fbca5 ("ice: Add support Flex RXD") Signed-off-by: Marcin Szycik Tested-by: Konrad Jankowski Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_virtchnl.c | 37 ++++++++++++--------------- 1 file changed, 17 insertions(+), 20 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c index ec90e59..dab3cd5 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c @@ -1621,9 +1621,6 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg) } for (i = 0; i < qci->num_queue_pairs; i++) { - struct ice_hw *hw; - u32 rxdid; - u16 pf_q; qpi = &qci->qpair[i]; if (qpi->txq.vsi_id != qci->vsi_id || qpi->rxq.vsi_id != qci->vsi_id || @@ -1664,6 +1661,7 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg) /* copy Rx queue info from VF into VSI */ if (qpi->rxq.ring_len > 0) { u16 max_frame_size = ice_vc_get_max_frame_size(vf); + u32 rxdid; vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr; vsi->rx_rings[i]->count = qpi->rxq.ring_len; @@ -1691,26 +1689,25 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg) vf->vf_id, i); goto error_param; } - } - /* VF Rx queue RXDID configuration */ - pf_q = vsi->rxq_map[qpi->rxq.queue_id]; - rxdid = qpi->rxq.rxdid; - hw = &vsi->back->hw; + /* If Rx flex desc is supported, select RXDID for Rx + * queues. Otherwise, use legacy 32byte descriptor + * format. Legacy 16byte descriptor is not supported. + * If this RXDID is selected, return error. + */ + if (vf->driver_caps & + VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) { + rxdid = qpi->rxq.rxdid; + if (!(BIT(rxdid) & pf->supported_rxdids)) + goto error_param; + } else { + rxdid = ICE_RXDID_LEGACY_1; + } - /* If Rx flex desc is supported, select RXDID for Rx queues. - * Otherwise, use legacy 32byte descriptor format. - * Legacy 16byte descriptor is not supported. If this RXDID - * is selected, return error. - */ - if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) { - if (!(BIT(rxdid) & pf->supported_rxdids)) - goto error_param; - } else { - rxdid = ICE_RXDID_LEGACY_1; + ice_write_qrxflxp_cntxt(&vsi->back->hw, + vsi->rxq_map[q_idx], + rxdid, 0x03, false); } - - ice_write_qrxflxp_cntxt(hw, pf_q, rxdid, 0x03, false); } /* send the response to the VF */ -- 2.7.4