Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2023-03-28 (ice)

This series contains updates to ice driver only.

Jesse fixes mismatched header documentation reported when building with
W=1.

Brett restricts setting of VSI context to only applicable fields for the
given ICE_AQ_VSI_PROP_Q_OPT_VALID bit.

Junfeng adds check when adding Flow Director filters that conflict with
existing filter rules.

Jakob Koschel adds interim variable for iterating to prevent possible
misuse after looping.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  ice: fix invalid check for empty list in ice_sched_assoc_vsi_to_agg()
  ice: add profile conflict check for AVF FDIR
  ice: Fix ice_cfg_rdma_fltr() to only update relevant fields
  ice: fix W=1 headers mismatch
====================

Link: https://lore.kernel.org/r/20230328172035.3904953-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

5 files changed, 102 insertions, 8 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c
index 4eca8d195ef0..b7682de0ae05 100644
--- a/drivers/net/ethernet/intel/ice/ice_sched.c
+++ b/drivers/net/ethernet/intel/ice/ice_sched.c
@@ -2788,7 +2788,7 @@ static int
 ice_sched_assoc_vsi_to_agg(struct ice_port_info *pi, u32 agg_id,
 			   u16 vsi_handle, unsigned long *tc_bitmap)
 {
-	struct ice_sched_agg_vsi_info *agg_vsi_info, *old_agg_vsi_info = NULL;
+	struct ice_sched_agg_vsi_info *agg_vsi_info, *iter, *old_agg_vsi_info = NULL;
 	struct ice_sched_agg_info *agg_info, *old_agg_info;
 	struct ice_hw *hw = pi->hw;
 	int status = 0;
@@ -2806,11 +2806,13 @@ ice_sched_assoc_vsi_to_agg(struct ice_port_info *pi, u32 agg_id,
 	if (old_agg_info && old_agg_info != agg_info) {
 		struct ice_sched_agg_vsi_info *vtmp;
 
-		list_for_each_entry_safe(old_agg_vsi_info, vtmp,
+		list_for_each_entry_safe(iter, vtmp,
 					 &old_agg_info->agg_vsi_list,
 					 list_entry)
-			if (old_agg_vsi_info->vsi_handle == vsi_handle)
+			if (iter->vsi_handle == vsi_handle) {
+				old_agg_vsi_info = iter;
 				break;
+			}
 	}
 
 	/* check if entry already exist */
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 61f844d22512..46b36851af46 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -1780,18 +1780,36 @@ ice_update_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
 int
 ice_cfg_rdma_fltr(struct ice_hw *hw, u16 vsi_handle, bool enable)
 {
-	struct ice_vsi_ctx *ctx;
+	struct ice_vsi_ctx *ctx, *cached_ctx;
+	int status;
+
+	cached_ctx = ice_get_vsi_ctx(hw, vsi_handle);
+	if (!cached_ctx)
+		return -ENOENT;
 
-	ctx = ice_get_vsi_ctx(hw, vsi_handle);
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
-		return -EIO;
+		return -ENOMEM;
+
+	ctx->info.q_opt_rss = cached_ctx->info.q_opt_rss;
+	ctx->info.q_opt_tc = cached_ctx->info.q_opt_tc;
+	ctx->info.q_opt_flags = cached_ctx->info.q_opt_flags;
+
+	ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID);
 
 	if (enable)
 		ctx->info.q_opt_flags |= ICE_AQ_VSI_Q_OPT_PE_FLTR_EN;
 	else
 		ctx->info.q_opt_flags &= ~ICE_AQ_VSI_Q_OPT_PE_FLTR_EN;
 
-	return ice_update_vsi(hw, vsi_handle, ctx, NULL);
+	status = ice_update_vsi(hw, vsi_handle, ctx, NULL);
+	if (!status) {
+		cached_ctx->info.q_opt_flags = ctx->info.q_opt_flags;
+		cached_ctx->info.valid_sections |= ctx->info.valid_sections;
+	}
+
+	kfree(ctx);
+	return status;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index b61dd9f01540..4fcf2d07eb85 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -938,6 +938,7 @@ ice_reuse_rx_page(struct ice_rx_ring *rx_ring, struct ice_rx_buf *old_buf)
  * ice_get_rx_buf - Fetch Rx buffer and synchronize data for use
  * @rx_ring: Rx descriptor ring to transact packets on
  * @size: size of buffer to add to skb
+ * @ntc: index of next to clean element
  *
  * This function will pull an Rx buffer from the ring and synchronize it
  * for use by the CPU.
@@ -1026,7 +1027,6 @@ ice_build_skb(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp)
 /**
  * ice_construct_skb - Allocate skb and populate it
  * @rx_ring: Rx descriptor ring to transact packets on
- * @rx_buf: Rx buffer to pull data from
  * @xdp: xdp_buff pointing to the data
  *
  * This function allocates an skb. It then populates it with the page
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
index 7bc5aa340c7d..c8322fb6f2b3 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
@@ -438,6 +438,7 @@ busy:
  * ice_finalize_xdp_rx - Bump XDP Tx tail and/or flush redirect map
  * @xdp_ring: XDP ring
  * @xdp_res: Result of the receive batch
+ * @first_idx: index to write from caller
  *
  * This function bumps XDP Tx tail and/or flush redirect map, and
  * should be called when a batch of packets has been processed in the
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
index e6ef6b303222..5fd75e75772e 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
@@ -542,6 +542,72 @@ static void ice_vc_fdir_rem_prof_all(struct ice_vf *vf)
 }
 
 /**
+ * ice_vc_fdir_has_prof_conflict
+ * @vf: pointer to the VF structure
+ * @conf: FDIR configuration for each filter
+ *
+ * Check if @conf has conflicting profile with existing profiles
+ *
+ * Return: true on success, and false on error.
+ */
+static bool
+ice_vc_fdir_has_prof_conflict(struct ice_vf *vf,
+			      struct virtchnl_fdir_fltr_conf *conf)
+{
+	struct ice_fdir_fltr *desc;
+
+	list_for_each_entry(desc, &vf->fdir.fdir_rule_list, fltr_node) {
+		struct virtchnl_fdir_fltr_conf *existing_conf;
+		enum ice_fltr_ptype flow_type_a, flow_type_b;
+		struct ice_fdir_fltr *a, *b;
+
+		existing_conf = to_fltr_conf_from_desc(desc);
+		a = &existing_conf->input;
+		b = &conf->input;
+		flow_type_a = a->flow_type;
+		flow_type_b = b->flow_type;
+
+		/* No need to compare two rules with different tunnel types or
+		 * with the same protocol type.
+		 */
+		if (existing_conf->ttype != conf->ttype ||
+		    flow_type_a == flow_type_b)
+			continue;
+
+		switch (flow_type_a) {
+		case ICE_FLTR_PTYPE_NONF_IPV4_UDP:
+		case ICE_FLTR_PTYPE_NONF_IPV4_TCP:
+		case ICE_FLTR_PTYPE_NONF_IPV4_SCTP:
+			if (flow_type_b == ICE_FLTR_PTYPE_NONF_IPV4_OTHER)
+				return true;
+			break;
+		case ICE_FLTR_PTYPE_NONF_IPV4_OTHER:
+			if (flow_type_b == ICE_FLTR_PTYPE_NONF_IPV4_UDP ||
+			    flow_type_b == ICE_FLTR_PTYPE_NONF_IPV4_TCP ||
+			    flow_type_b == ICE_FLTR_PTYPE_NONF_IPV4_SCTP)
+				return true;
+			break;
+		case ICE_FLTR_PTYPE_NONF_IPV6_UDP:
+		case ICE_FLTR_PTYPE_NONF_IPV6_TCP:
+		case ICE_FLTR_PTYPE_NONF_IPV6_SCTP:
+			if (flow_type_b == ICE_FLTR_PTYPE_NONF_IPV6_OTHER)
+				return true;
+			break;
+		case ICE_FLTR_PTYPE_NONF_IPV6_OTHER:
+			if (flow_type_b == ICE_FLTR_PTYPE_NONF_IPV6_UDP ||
+			    flow_type_b == ICE_FLTR_PTYPE_NONF_IPV6_TCP ||
+			    flow_type_b == ICE_FLTR_PTYPE_NONF_IPV6_SCTP)
+				return true;
+			break;
+		default:
+			break;
+		}
+	}
+
+	return false;
+}
+
+/**
  * ice_vc_fdir_write_flow_prof
  * @vf: pointer to the VF structure
  * @flow: filter flow type
@@ -677,6 +743,13 @@ ice_vc_fdir_config_input_set(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
 	enum ice_fltr_ptype flow;
 	int ret;
 
+	ret = ice_vc_fdir_has_prof_conflict(vf, conf);
+	if (ret) {
+		dev_dbg(dev, "Found flow profile conflict for VF %d\n",
+			vf->vf_id);
+		return ret;
+	}
+
 	flow = input->flow_type;
 	ret = ice_vc_fdir_alloc_prof(vf, flow);
 	if (ret) {