1 files changed, 107 insertions, 123 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index f559e60992fa..06e712cdc3d9 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -7,6 +7,7 @@
 #include "ice_lib.h"
 #include "ice_fltr.h"
 #include "ice_dcb_lib.h"
+#include "ice_type.h"
 #include "ice_vsi_vlan_ops.h"
 
 /**
@@ -20,6 +21,8 @@ const char *ice_vsi_type_str(enum ice_vsi_type vsi_type)
 		return "ICE_VSI_PF";
 	case ICE_VSI_VF:
 		return "ICE_VSI_VF";
+	case ICE_VSI_SF:
+		return "ICE_VSI_SF";
 	case ICE_VSI_CTRL:
 		return "ICE_VSI_CTRL";
 	case ICE_VSI_CHNL:
@@ -135,6 +138,7 @@ static void ice_vsi_set_num_desc(struct ice_vsi *vsi)
 {
 	switch (vsi->type) {
 	case ICE_VSI_PF:
+	case ICE_VSI_SF:
 	case ICE_VSI_CTRL:
 	case ICE_VSI_LB:
 		/* a user could change the values of num_[tr]x_desc using
@@ -201,6 +205,12 @@ static void ice_vsi_set_num_qs(struct ice_vsi *vsi)
 					   max_t(int, vsi->alloc_rxq,
 						 vsi->alloc_txq));
 		break;
+	case ICE_VSI_SF:
+		vsi->alloc_txq = 1;
+		vsi->alloc_rxq = 1;
+		vsi->num_q_vectors = 1;
+		vsi->irq_dyn_alloc = true;
+		break;
 	case ICE_VSI_VF:
 		if (vf->num_req_qs)
 			vf->num_vf_qs = vf->num_req_qs;
@@ -423,7 +433,7 @@ err_out:
  * This deallocates the VSI's queue resources, removes it from the PF's
  * VSI array if necessary, and deallocates the VSI
  */
-static void ice_vsi_free(struct ice_vsi *vsi)
+void ice_vsi_free(struct ice_vsi *vsi)
 {
 	struct ice_pf *pf = NULL;
 	struct device *dev;
@@ -447,6 +457,7 @@ static void ice_vsi_free(struct ice_vsi *vsi)
 
 	ice_vsi_free_stats(vsi);
 	ice_vsi_free_arrays(vsi);
+	mutex_destroy(&vsi->xdp_state_lock);
 	mutex_unlock(&pf->sw_mutex);
 	devm_kfree(dev, vsi);
 }
@@ -558,6 +569,7 @@ ice_vsi_alloc_def(struct ice_vsi *vsi, struct ice_channel *ch)
 
 	switch (vsi->type) {
 	case ICE_VSI_PF:
+	case ICE_VSI_SF:
 		/* Setup default MSIX irq handler for VSI */
 		vsi->irq_handler = ice_msix_clean_rings;
 		break;
@@ -594,7 +606,7 @@ ice_vsi_alloc_def(struct ice_vsi *vsi, struct ice_channel *ch)
  *
  * returns a pointer to a VSI on success, NULL on failure.
  */
-static struct ice_vsi *ice_vsi_alloc(struct ice_pf *pf)
+struct ice_vsi *ice_vsi_alloc(struct ice_pf *pf)
 {
 	struct device *dev = ice_pf_to_dev(pf);
 	struct ice_vsi *vsi = NULL;
@@ -626,6 +638,8 @@ static struct ice_vsi *ice_vsi_alloc(struct ice_pf *pf)
 	pf->next_vsi = ice_get_free_slot(pf->vsi, pf->num_alloc_vsi,
 					 pf->next_vsi);
 
+	mutex_init(&vsi->xdp_state_lock);
+
 unlock_pf:
 	mutex_unlock(&pf->sw_mutex);
 	return vsi;
@@ -886,6 +900,11 @@ static void ice_vsi_set_rss_params(struct ice_vsi *vsi)
 					      max_rss_size);
 		vsi->rss_lut_type = ICE_LUT_PF;
 		break;
+	case ICE_VSI_SF:
+		vsi->rss_table_size = ICE_LUT_VSI_SIZE;
+		vsi->rss_size = min_t(u16, num_online_cpus(), max_rss_size);
+		vsi->rss_lut_type = ICE_LUT_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.
@@ -1133,6 +1152,7 @@ static void ice_set_rss_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi)
 		lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_PF;
 		break;
 	case ICE_VSI_VF:
+	case ICE_VSI_SF:
 		/* VF VSI will gets a small RSS table which is a VSI LUT type */
 		lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI;
 		break;
@@ -1211,6 +1231,7 @@ static int ice_vsi_init(struct ice_vsi *vsi, u32 vsi_flags)
 	case ICE_VSI_PF:
 		ctxt->flags = ICE_AQ_VSI_TYPE_PF;
 		break;
+	case ICE_VSI_SF:
 	case ICE_VSI_CHNL:
 		ctxt->flags = ICE_AQ_VSI_TYPE_VMDQ2;
 		break;
@@ -2092,6 +2113,7 @@ static void ice_set_agg_vsi(struct ice_vsi *vsi)
 	case ICE_VSI_CHNL:
 	case ICE_VSI_LB:
 	case ICE_VSI_PF:
+	case ICE_VSI_SF:
 		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];
@@ -2261,6 +2283,7 @@ static int ice_vsi_cfg_def(struct ice_vsi *vsi)
 
 	switch (vsi->type) {
 	case ICE_VSI_CTRL:
+	case ICE_VSI_SF:
 	case ICE_VSI_PF:
 		ret = ice_vsi_alloc_q_vectors(vsi);
 		if (ret)
@@ -2286,9 +2309,6 @@ static int ice_vsi_cfg_def(struct ice_vsi *vsi)
 
 		ice_vsi_map_rings_to_vectors(vsi);
 
-		/* Associate q_vector rings to napi */
-		ice_vsi_set_napi_queues(vsi);
-
 		vsi->stat_offsets_loaded = false;
 
 		/* ICE_VSI_CTRL does not need RSS so skip RSS processing */
@@ -2413,20 +2433,13 @@ void ice_vsi_decfg(struct ice_vsi *vsi)
 	struct ice_pf *pf = vsi->back;
 	int err;
 
-	/* The Rx rule will only exist to remove if the LLDP FW
-	 * engine is currently stopped
-	 */
-	if (!ice_is_safe_mode(pf) && vsi->type == ICE_VSI_PF &&
-	    !test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags))
-		ice_cfg_sw_lldp(vsi, false, false);
-
 	ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx);
 	err = ice_rm_vsi_rdma_cfg(vsi->port_info, vsi->idx);
 	if (err)
 		dev_err(ice_pf_to_dev(pf), "Failed to remove RDMA scheduler config for VSI %u, err %d\n",
 			vsi->vsi_num, err);
 
-	if (ice_is_xdp_ena_vsi(vsi))
+	if (vsi->xdp_rings)
 		/* return value check can be skipped here, it always returns
 		 * 0 if reset is in progress
 		 */
@@ -2528,7 +2541,7 @@ static void ice_vsi_release_msix(struct ice_vsi *vsi)
 		for (q = 0; q < q_vector->num_ring_tx; q++) {
 			ice_write_itr(&q_vector->tx, 0);
 			wr32(hw, QINT_TQCTL(vsi->txq_map[txq]), 0);
-			if (ice_is_xdp_ena_vsi(vsi)) {
+			if (vsi->xdp_rings) {
 				u32 xdp_txq = txq + vsi->num_xdp_txq;
 
 				wr32(hw, QINT_TQCTL(vsi->txq_map[xdp_txq]), 0);
@@ -2628,6 +2641,7 @@ void ice_vsi_close(struct ice_vsi *vsi)
 	if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state))
 		ice_down(vsi);
 
+	ice_vsi_clear_napi_queues(vsi);
 	ice_vsi_free_irq(vsi);
 	ice_vsi_free_tx_rings(vsi);
 	ice_vsi_free_rx_rings(vsi);
@@ -2647,7 +2661,8 @@ int ice_ena_vsi(struct ice_vsi *vsi, bool locked)
 
 	clear_bit(ICE_VSI_NEEDS_RESTART, vsi->state);
 
-	if (vsi->netdev && vsi->type == ICE_VSI_PF) {
+	if (vsi->netdev && (vsi->type == ICE_VSI_PF ||
+			    vsi->type == ICE_VSI_SF)) {
 		if (netif_running(vsi->netdev)) {
 			if (!locked)
 				rtnl_lock();
@@ -2671,143 +2686,99 @@ int ice_ena_vsi(struct ice_vsi *vsi, bool locked)
  */
 void ice_dis_vsi(struct ice_vsi *vsi, bool locked)
 {
-	if (test_bit(ICE_VSI_DOWN, vsi->state))
-		return;
+	bool already_down = test_bit(ICE_VSI_DOWN, vsi->state);
 
 	set_bit(ICE_VSI_NEEDS_RESTART, vsi->state);
 
-	if (vsi->type == ICE_VSI_PF && vsi->netdev) {
+	if (vsi->netdev && (vsi->type == ICE_VSI_PF ||
+			    vsi->type == ICE_VSI_SF)) {
 		if (netif_running(vsi->netdev)) {
 			if (!locked)
 				rtnl_lock();
-
-			ice_vsi_close(vsi);
+			already_down = test_bit(ICE_VSI_DOWN, vsi->state);
+			if (!already_down)
+				ice_vsi_close(vsi);
 
 			if (!locked)
 				rtnl_unlock();
-		} else {
+		} else if (!already_down) {
 			ice_vsi_close(vsi);
 		}
-	} else if (vsi->type == ICE_VSI_CTRL) {
+	} else if (vsi->type == ICE_VSI_CTRL && !already_down) {
 		ice_vsi_close(vsi);
 	}
 }
 
 /**
- * __ice_queue_set_napi - Set the napi instance for the queue
- * @dev: device to which NAPI and queue belong
- * @queue_index: Index of queue
- * @type: queue type as RX or TX
- * @napi: NAPI context
- * @locked: is the rtnl_lock already held
- *
- * Set the napi instance for the queue. Caller indicates the lock status.
- */
-static void
-__ice_queue_set_napi(struct net_device *dev, unsigned int queue_index,
-		     enum netdev_queue_type type, struct napi_struct *napi,
-		     bool locked)
-{
-	if (!locked)
-		rtnl_lock();
-	netif_queue_set_napi(dev, queue_index, type, napi);
-	if (!locked)
-		rtnl_unlock();
-}
-
-/**
- * ice_queue_set_napi - Set the napi instance for the queue
- * @vsi: VSI being configured
- * @queue_index: Index of queue
- * @type: queue type as RX or TX
- * @napi: NAPI context
+ * ice_vsi_set_napi_queues - associate netdev queues with napi
+ * @vsi: VSI pointer
  *
- * Set the napi instance for the queue. The rtnl lock state is derived from the
- * execution path.
+ * Associate queue[s] with napi for all vectors.
+ * The caller must hold rtnl_lock.
  */
-void
-ice_queue_set_napi(struct ice_vsi *vsi, unsigned int queue_index,
-		   enum netdev_queue_type type, struct napi_struct *napi)
+void ice_vsi_set_napi_queues(struct ice_vsi *vsi)
 {
-	struct ice_pf *pf = vsi->back;
+	struct net_device *netdev = vsi->netdev;
+	int q_idx, v_idx;
 
-	if (!vsi->netdev)
+	if (!netdev)
 		return;
 
-	if (current_work() == &pf->serv_task ||
-	    test_bit(ICE_PREPARED_FOR_RESET, pf->state) ||
-	    test_bit(ICE_DOWN, pf->state) ||
-	    test_bit(ICE_SUSPENDED, pf->state))
-		__ice_queue_set_napi(vsi->netdev, queue_index, type, napi,
-				     false);
-	else
-		__ice_queue_set_napi(vsi->netdev, queue_index, type, napi,
-				     true);
-}
+	ice_for_each_rxq(vsi, q_idx)
+		netif_queue_set_napi(netdev, q_idx, NETDEV_QUEUE_TYPE_RX,
+				     &vsi->rx_rings[q_idx]->q_vector->napi);
 
-/**
- * __ice_q_vector_set_napi_queues - Map queue[s] associated with the napi
- * @q_vector: q_vector pointer
- * @locked: is the rtnl_lock already held
- *
- * Associate the q_vector napi with all the queue[s] on the vector.
- * Caller indicates the lock status.
- */
-void __ice_q_vector_set_napi_queues(struct ice_q_vector *q_vector, bool locked)
-{
-	struct ice_rx_ring *rx_ring;
-	struct ice_tx_ring *tx_ring;
-
-	ice_for_each_rx_ring(rx_ring, q_vector->rx)
-		__ice_queue_set_napi(q_vector->vsi->netdev, rx_ring->q_index,
-				     NETDEV_QUEUE_TYPE_RX, &q_vector->napi,
-				     locked);
-
-	ice_for_each_tx_ring(tx_ring, q_vector->tx)
-		__ice_queue_set_napi(q_vector->vsi->netdev, tx_ring->q_index,
-				     NETDEV_QUEUE_TYPE_TX, &q_vector->napi,
-				     locked);
+	ice_for_each_txq(vsi, q_idx)
+		netif_queue_set_napi(netdev, q_idx, NETDEV_QUEUE_TYPE_TX,
+				     &vsi->tx_rings[q_idx]->q_vector->napi);
 	/* Also set the interrupt number for the NAPI */
-	netif_napi_set_irq(&q_vector->napi, q_vector->irq.virq);
+	ice_for_each_q_vector(vsi, v_idx) {
+		struct ice_q_vector *q_vector = vsi->q_vectors[v_idx];
+
+		netif_napi_set_irq(&q_vector->napi, q_vector->irq.virq);
+	}
 }
 
 /**
- * ice_q_vector_set_napi_queues - Map queue[s] associated with the napi
- * @q_vector: q_vector pointer
+ * ice_vsi_clear_napi_queues - dissociate netdev queues from napi
+ * @vsi: VSI pointer
  *
- * Associate the q_vector napi with all the queue[s] on the vector
+ * Clear the association between all VSI queues queue[s] and napi.
+ * The caller must hold rtnl_lock.
  */
-void ice_q_vector_set_napi_queues(struct ice_q_vector *q_vector)
+void ice_vsi_clear_napi_queues(struct ice_vsi *vsi)
 {
-	struct ice_rx_ring *rx_ring;
-	struct ice_tx_ring *tx_ring;
+	struct net_device *netdev = vsi->netdev;
+	int q_idx;
 
-	ice_for_each_rx_ring(rx_ring, q_vector->rx)
-		ice_queue_set_napi(q_vector->vsi, rx_ring->q_index,
-				   NETDEV_QUEUE_TYPE_RX, &q_vector->napi);
+	if (!netdev)
+		return;
 
-	ice_for_each_tx_ring(tx_ring, q_vector->tx)
-		ice_queue_set_napi(q_vector->vsi, tx_ring->q_index,
-				   NETDEV_QUEUE_TYPE_TX, &q_vector->napi);
-	/* Also set the interrupt number for the NAPI */
-	netif_napi_set_irq(&q_vector->napi, q_vector->irq.virq);
+	ice_for_each_txq(vsi, q_idx)
+		netif_queue_set_napi(netdev, q_idx, NETDEV_QUEUE_TYPE_TX, NULL);
+
+	ice_for_each_rxq(vsi, q_idx)
+		netif_queue_set_napi(netdev, q_idx, NETDEV_QUEUE_TYPE_RX, NULL);
 }
 
 /**
- * ice_vsi_set_napi_queues
- * @vsi: VSI pointer
+ * ice_napi_add - register NAPI handler for the VSI
+ * @vsi: VSI for which NAPI handler is to be registered
  *
- * Associate queue[s] with napi for all vectors
+ * This function is only called in the driver's load path. Registering the NAPI
+ * handler is done in ice_vsi_alloc_q_vector() for all other cases (i.e. resume,
+ * reset/rebuild, etc.)
  */
-void ice_vsi_set_napi_queues(struct ice_vsi *vsi)
+void ice_napi_add(struct ice_vsi *vsi)
 {
-	int i;
+	int v_idx;
 
 	if (!vsi->netdev)
 		return;
 
-	ice_for_each_q_vector(vsi, i)
-		ice_q_vector_set_napi_queues(vsi->q_vectors[i]);
+	ice_for_each_q_vector(vsi, v_idx)
+		netif_napi_add(vsi->netdev, &vsi->q_vectors[v_idx]->napi,
+			       ice_napi_poll);
 }
 
 /**
@@ -2828,6 +2799,14 @@ int ice_vsi_release(struct ice_vsi *vsi)
 		ice_rss_clean(vsi);
 
 	ice_vsi_close(vsi);
+
+	/* The Rx rule will only exist to remove if the LLDP FW
+	 * engine is currently stopped
+	 */
+	if (!ice_is_safe_mode(pf) && vsi->type == ICE_VSI_PF &&
+	    !test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags))
+		ice_cfg_sw_lldp(vsi, false, false);
+
 	ice_vsi_decfg(vsi);
 
 	/* retain SW VSI data structure since it is needed to unregister and
@@ -3039,19 +3018,23 @@ int ice_vsi_rebuild(struct ice_vsi *vsi, u32 vsi_flags)
 	if (WARN_ON(vsi->type == ICE_VSI_VF && !vsi->vf))
 		return -EINVAL;
 
+	mutex_lock(&vsi->xdp_state_lock);
+
 	ret = ice_vsi_realloc_stat_arrays(vsi);
 	if (ret)
-		goto err_vsi_cfg;
+		goto unlock;
 
 	ice_vsi_decfg(vsi);
 	ret = ice_vsi_cfg_def(vsi);
 	if (ret)
-		goto err_vsi_cfg;
+		goto unlock;
 
 	coalesce = kcalloc(vsi->num_q_vectors,
 			   sizeof(struct ice_coalesce_stored), GFP_KERNEL);
-	if (!coalesce)
-		return -ENOMEM;
+	if (!coalesce) {
+		ret = -ENOMEM;
+		goto decfg;
+	}
 
 	prev_num_q_vectors = ice_vsi_rebuild_get_coalesce(vsi, coalesce);
 
@@ -3059,22 +3042,23 @@ int ice_vsi_rebuild(struct ice_vsi *vsi, u32 vsi_flags)
 	if (ret) {
 		if (vsi_flags & ICE_VSI_FLAG_INIT) {
 			ret = -EIO;
-			goto err_vsi_cfg_tc_lan;
+			goto free_coalesce;
 		}
 
-		kfree(coalesce);
-		return ice_schedule_reset(pf, ICE_RESET_PFR);
+		ret = ice_schedule_reset(pf, ICE_RESET_PFR);
+		goto free_coalesce;
 	}
 
 	ice_vsi_rebuild_set_coalesce(vsi, coalesce, prev_num_q_vectors);
-	kfree(coalesce);
-
-	return 0;
+	clear_bit(ICE_VSI_REBUILD_PENDING, vsi->state);
 
-err_vsi_cfg_tc_lan:
-	ice_vsi_decfg(vsi);
+free_coalesce:
 	kfree(coalesce);
-err_vsi_cfg:
+decfg:
+	if (ret)
+		ice_vsi_decfg(vsi);
+unlock:
+	mutex_unlock(&vsi->xdp_state_lock);
 	return ret;
 }