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ice: Copy dcbx configuration only if mode is correct

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In rebuild DCB desired_dcbx_cfg was copy to local_dcbx_cfg, but
if DCBX mode is IEEE desired_dcbx_cfg is not initialized by DCBX
config from FW. Change logic to copy config value only if mode is
set to CEE.

If driver copy desired_dcbx_cfg to local_dcbx_cfg in IEEE mode there
is problem with globr. System is frozen after two or more globr.

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Michal Swiatkowski 2019-07-29 02:04:48 -07:00 committed by Jeff Kirsher
parent 64bcaec642
commit 42a179c80d
1 changed files with 4 additions and 2 deletions
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6
drivers/net/ethernet/intel/ice/ice_dcb_lib.c
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@ -334,8 +334,10 @@ void ice_dcb_rebuild(struct ice_pf *pf)
devm_kfree(&pf->pdev->dev, prev_cfg);
/* Set the local desired config */
memset(&pf->hw.port_info->local_dcbx_cfg, 0, sizeof(*local_dcbx_cfg));
memcpy(local_dcbx_cfg, desired_dcbx_cfg, sizeof(*local_dcbx_cfg));
if (local_dcbx_cfg->dcbx_mode == ICE_DCBX_MODE_CEE)
memcpy(local_dcbx_cfg, desired_dcbx_cfg,
sizeof(*local_dcbx_cfg));
ice_cfg_etsrec_defaults(pf->hw.port_info);
ret = ice_set_dcb_cfg(pf->hw.port_info);
if (ret) {