Commit 43a7e1cf authored Aug 07, 2020 by Sergey Nemov Committed by Greg Kroah-Hartman Aug 11, 2020

i40e: add num_vectors checker in iwarp handler



[ Upstream commit 7015ca3df965378bcef072cca9cd63ed098665b5 ]

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.

Fixes: e3219ce6 ("i40e: Add support for client interface for IWARP driver")
Signed-off-by: Sergey Nemov <sergey.nemov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 46a41ed2

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -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));