diff mbox series

[iwl-net,v2,4/5] ice: fix input validation for virtchnl BW

Message ID 20250225090847.513849-7-martyna.szapar-mudlaw@linux.intel.com (mailing list archive)
State Awaiting Upstream
Delegated to: Netdev Maintainers
Headers show
Series ice: fix validation issues in virtchnl parameters | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers fail 4 blamed authors not CCed: jiri@resnulli.us kuba@kernel.org wenjun1.wu@intel.com pabeni@redhat.com; 8 maintainers not CCed: wenjun1.wu@intel.com kuba@kernel.org andrew+netdev@lunn.ch edumazet@google.com pabeni@redhat.com przemyslaw.kitszel@intel.com jiri@resnulli.us anthony.l.nguyen@intel.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 36 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 140 this patch: 140
netdev/source_inline success Was 0 now: 0

Commit Message

Szapar-Mudlaw, Martyna Feb. 25, 2025, 9:08 a.m. UTC 
From: Lukasz Czapnik <lukasz.czapnik@intel.com>

Add missing validation of tc and queue id values sent by a VF in
ice_vc_cfg_q_bw().
Additionally fixed logged value in the warning message,
where max_tx_rate was incorrectly referenced instead of min_tx_rate.
Also correct error handling in this function by properly exiting
when invalid configuration is detected.

Fixes: 015307754a19 ("ice: Support VF queue rate limit and quanta size configuration")
Reviewed-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Signed-off-by: Lukasz Czapnik <lukasz.czapnik@intel.com>
Co-developed-by: Martyna Szapar-Mudlaw <martyna.szapar-mudlaw@linux.intel.com>
Signed-off-by: Martyna Szapar-Mudlaw <martyna.szapar-mudlaw@linux.intel.com>
---
 drivers/net/ethernet/intel/ice/ice_virtchnl.c | 24 ++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
index adb1bf12542f..824ef849b0ea 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
@@ -1865,15 +1865,33 @@  static int ice_vc_cfg_q_bw(struct ice_vf *vf, u8 *msg)
 
 	for (i = 0; i < qbw->num_queues; i++) {
 		if (qbw->cfg[i].shaper.peak != 0 && vf->max_tx_rate != 0 &&
-		    qbw->cfg[i].shaper.peak > vf->max_tx_rate)
+		    qbw->cfg[i].shaper.peak > vf->max_tx_rate) {
 			dev_warn(ice_pf_to_dev(vf->pf), "The maximum queue %d rate limit configuration may not take effect because the maximum TX rate for VF-%d is %d\n",
 				 qbw->cfg[i].queue_id, vf->vf_id,
 				 vf->max_tx_rate);
+			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+			goto err;
+		}
 		if (qbw->cfg[i].shaper.committed != 0 && vf->min_tx_rate != 0 &&
-		    qbw->cfg[i].shaper.committed < vf->min_tx_rate)
+		    qbw->cfg[i].shaper.committed < vf->min_tx_rate) {
 			dev_warn(ice_pf_to_dev(vf->pf), "The minimum queue %d rate limit configuration may not take effect because the minimum TX rate for VF-%d is %d\n",
 				 qbw->cfg[i].queue_id, vf->vf_id,
-				 vf->max_tx_rate);
+				 vf->min_tx_rate);
+			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+			goto err;
+		}
+		if (qbw->cfg[i].queue_id > vf->num_vf_qs) {
+			dev_warn(ice_pf_to_dev(vf->pf), "VF-%d trying to configure invalid queue_id\n",
+				 vf->vf_id);
+			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+			goto err;
+		}
+		if (qbw->cfg[i].tc >= ICE_MAX_TRAFFIC_CLASS) {
+			dev_warn(ice_pf_to_dev(vf->pf), "VF-%d trying to configure a traffic class higher than allowed\n",
+				 vf->vf_id);
+			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+			goto err;
+		}
 	}
 
 	for (i = 0; i < qbw->num_queues; i++) {