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

Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2021-10-07

Michal Swiatkowski says:

The following patch series introduces basic switchdev model
support in ice driver. Implement the following blocks of
switchdev framework:
- VF port representors creation
- control plane VSI definition
- exception path (a. k. a. "slow-path") - to allow a virtual
switch or linux bridge to receive any packet that doesn't match
any hw filter
- link state management of virtual ports
- query virtual port statistics

Hardware offload support in switchdev mode is out of scope of
this patchset. Devlink interface is used to toggle between
switchdev and legacy (the default) modes of the driver.

---
Note: This series includes the use enum ice_status, however, we have
patches in our queue to remove it from the driver [1]. We are working
through the patches that precede the removal series.

[1] https://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=265957
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 110 insertions, 2 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index 3adbd9a179a7..93565f597266 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -24,6 +24,8 @@ const char *ice_vsi_type_str(enum ice_vsi_type vsi_type)
 		return "ICE_VSI_CTRL";
 	case ICE_VSI_LB:
 		return "ICE_VSI_LB";
+	case ICE_VSI_SWITCHDEV_CTRL:
+		return "ICE_VSI_SWITCHDEV_CTRL";
 	default:
 		return "unknown";
 	}
@@ -132,6 +134,7 @@ static void ice_vsi_set_num_desc(struct ice_vsi *vsi)
 {
 	switch (vsi->type) {
 	case ICE_VSI_PF:
+	case ICE_VSI_SWITCHDEV_CTRL:
 	case ICE_VSI_CTRL:
 	case ICE_VSI_LB:
 		/* a user could change the values of num_[tr]x_desc using
@@ -200,6 +203,14 @@ static void ice_vsi_set_num_qs(struct ice_vsi *vsi, u16 vf_id)
 					   max_t(int, vsi->alloc_rxq,
 						 vsi->alloc_txq));
 		break;
+	case ICE_VSI_SWITCHDEV_CTRL:
+		/* The number of queues for ctrl VSI is equal to number of VFs.
+		 * Each ring is associated to the corresponding VF_PR netdev.
+		 */
+		vsi->alloc_txq = pf->num_alloc_vfs;
+		vsi->alloc_rxq = pf->num_alloc_vfs;
+		vsi->num_q_vectors = 1;
+		break;
 	case ICE_VSI_VF:
 		vf = &pf->vf[vsi->vf_id];
 		if (vf->num_req_qs)
@@ -408,6 +419,21 @@ static irqreturn_t ice_msix_clean_rings(int __always_unused irq, void *data)
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t ice_eswitch_msix_clean_rings(int __always_unused irq, void *data)
+{
+	struct ice_q_vector *q_vector = (struct ice_q_vector *)data;
+	struct ice_pf *pf = q_vector->vsi->back;
+	int i;
+
+	if (!q_vector->tx.ring && !q_vector->rx.ring)
+		return IRQ_HANDLED;
+
+	ice_for_each_vf(pf, i)
+		napi_schedule(&pf->vf[i].repr->q_vector->napi);
+
+	return IRQ_HANDLED;
+}
+
 /**
  * ice_vsi_alloc - Allocates the next available struct VSI in the PF
  * @pf: board private structure
@@ -448,6 +474,13 @@ ice_vsi_alloc(struct ice_pf *pf, enum ice_vsi_type vsi_type, u16 vf_id)
 		ice_vsi_set_num_qs(vsi, ICE_INVAL_VFID);
 
 	switch (vsi->type) {
+	case ICE_VSI_SWITCHDEV_CTRL:
+		if (ice_vsi_alloc_arrays(vsi))
+			goto err_rings;
+
+		/* Setup eswitch MSIX irq handler for VSI */
+		vsi->irq_handler = ice_eswitch_msix_clean_rings;
+		break;
 	case ICE_VSI_PF:
 		if (ice_vsi_alloc_arrays(vsi))
 			goto err_rings;
@@ -707,6 +740,12 @@ static void ice_vsi_set_rss_params(struct ice_vsi *vsi)
 				      BIT(cap->rss_table_entry_width));
 		vsi->rss_lut_type = ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF;
 		break;
+	case ICE_VSI_SWITCHDEV_CTRL:
+		vsi->rss_table_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
+		vsi->rss_size = min_t(u16, num_online_cpus(),
+				      BIT(cap->rss_table_entry_width));
+		vsi->rss_lut_type = ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_VSI;
+		break;
 	case ICE_VSI_VF:
 		/* VF VSI will get a small RSS table.
 		 * For VSI_LUT, LUT size should be set to 64 bytes.
@@ -980,6 +1019,9 @@ static int ice_vsi_init(struct ice_vsi *vsi, bool init_vsi)
 	case ICE_VSI_PF:
 		ctxt->flags = ICE_AQ_VSI_TYPE_PF;
 		break;
+	case ICE_VSI_SWITCHDEV_CTRL:
+		ctxt->flags = ICE_AQ_VSI_TYPE_VMDQ2;
+		break;
 	case ICE_VSI_VF:
 		ctxt->flags = ICE_AQ_VSI_TYPE_VF;
 		/* VF number here is the absolute VF number (0-255) */
@@ -2297,6 +2339,7 @@ static void ice_set_agg_vsi(struct ice_vsi *vsi)
 	case ICE_VSI_CTRL:
 	case ICE_VSI_LB:
 	case ICE_VSI_PF:
+	case ICE_VSI_SWITCHDEV_CTRL:
 		max_agg_nodes = ICE_MAX_PF_AGG_NODES;
 		agg_node_id_start = ICE_PF_AGG_NODE_ID_START;
 		agg_node_iter = &pf->pf_agg_node[0];
@@ -2448,6 +2491,7 @@ ice_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi,
 
 	switch (vsi->type) {
 	case ICE_VSI_CTRL:
+	case ICE_VSI_SWITCHDEV_CTRL:
 	case ICE_VSI_PF:
 		ret = ice_vsi_alloc_q_vectors(vsi);
 		if (ret)
@@ -2757,7 +2801,8 @@ void ice_dis_vsi(struct ice_vsi *vsi, bool locked)
 		} else {
 			ice_vsi_close(vsi);
 		}
-	} else if (vsi->type == ICE_VSI_CTRL) {
+	} else if (vsi->type == ICE_VSI_CTRL ||
+		   vsi->type == ICE_VSI_SWITCHDEV_CTRL) {
 		ice_vsi_close(vsi);
 	}
 }
@@ -2859,7 +2904,8 @@ int ice_vsi_release(struct ice_vsi *vsi)
 		clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state);
 	}
 
-	ice_devlink_destroy_port(vsi);
+	if (vsi->type == ICE_VSI_PF)
+		ice_devlink_destroy_pf_port(pf);
 
 	if (test_bit(ICE_FLAG_RSS_ENA, pf->flags))
 		ice_rss_clean(vsi);
@@ -3135,6 +3181,7 @@ int ice_vsi_rebuild(struct ice_vsi *vsi, bool init_vsi)
 
 	switch (vtype) {
 	case ICE_VSI_CTRL:
+	case ICE_VSI_SWITCHDEV_CTRL:
 	case ICE_VSI_PF:
 		ret = ice_vsi_alloc_q_vectors(vsi);
 		if (ret)
@@ -3620,3 +3667,64 @@ void ice_init_feature_support(struct ice_pf *pf)
 		break;
 	}
 }
+
+/**
+ * ice_vsi_update_security - update security block in VSI
+ * @vsi: pointer to VSI structure
+ * @fill: function pointer to fill ctx
+ */
+int
+ice_vsi_update_security(struct ice_vsi *vsi, void (*fill)(struct ice_vsi_ctx *))
+{
+	struct ice_vsi_ctx ctx = { 0 };
+
+	ctx.info = vsi->info;
+	ctx.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
+	fill(&ctx);
+
+	if (ice_update_vsi(&vsi->back->hw, vsi->idx, &ctx, NULL))
+		return -ENODEV;
+
+	vsi->info = ctx.info;
+	return 0;
+}
+
+/**
+ * ice_vsi_ctx_set_antispoof - set antispoof function in VSI ctx
+ * @ctx: pointer to VSI ctx structure
+ */
+void ice_vsi_ctx_set_antispoof(struct ice_vsi_ctx *ctx)
+{
+	ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF |
+			       (ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
+				ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
+}
+
+/**
+ * ice_vsi_ctx_clear_antispoof - clear antispoof function in VSI ctx
+ * @ctx: pointer to VSI ctx structure
+ */
+void ice_vsi_ctx_clear_antispoof(struct ice_vsi_ctx *ctx)
+{
+	ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF &
+			       ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
+				 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
+}
+
+/**
+ * ice_vsi_ctx_set_allow_override - allow destination override on VSI
+ * @ctx: pointer to VSI ctx structure
+ */
+void ice_vsi_ctx_set_allow_override(struct ice_vsi_ctx *ctx)
+{
+	ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD;
+}
+
+/**
+ * ice_vsi_ctx_clear_allow_override - turn off destination override on VSI
+ * @ctx: pointer to VSI ctx structure
+ */
+void ice_vsi_ctx_clear_allow_override(struct ice_vsi_ctx *ctx)
+{
+	ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD;
+}