From: Sergey Nemov Date: Fri, 29 Mar 2019 22:08:36 +0000 (-0700) Subject: i40e: add num_vectors checker in iwarp handler X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=7015ca3df965378bcef072cca9cd63ed098665b5;p=openwrt%2Fstaging%2Fblogic.git i40e: add num_vectors checker in iwarp handler Field num_vectors from struct virtchnl_iwarp_qvlist_info should not be larger than num_msix_vectors_vf in the hw struct. The iwarp uses the same set of vectors as the LAN VF driver. Signed-off-by: Sergey Nemov Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index 00345bbf68ec..25490cfb06fc 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -442,6 +442,16 @@ static int i40e_config_iwarp_qvlist(struct i40e_vf *vf, u32 next_q_idx, next_q_type; u32 msix_vf, size; + msix_vf = pf->hw.func_caps.num_msix_vectors_vf; + + if (qvlist_info->num_vectors > msix_vf) { + dev_warn(&pf->pdev->dev, + "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", + qvlist_info->num_vectors, + msix_vf); + goto err; + } + size = sizeof(struct virtchnl_iwarp_qvlist_info) + (sizeof(struct virtchnl_iwarp_qv_info) * (qvlist_info->num_vectors - 1));