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

Jeff Kirsher says:

====================
100GbE Intel Wired LAN Driver Updates 2019-03-22

This series contains updates to ice driver only.

Akeem enables MAC anti-spoofing by default when a new VSI is being
created.  Fixes an issue when reclaiming VF resources back to the pool
after reset, by freeing VF resources separately using the first VF
vector index to traverse the list, instead of starting at the last
assigned vectors list.  Added support for VF & PF promiscuous mode in
the ice driver.  Fixed the PF driver from letting the VF know it is "not
trusted" when it attempts to add more than its permitted additional MAC
addresses.  Altered how the driver gets the VF VSIs instances, instead
of using the mailbox messages to retrieve VSIs, get it directly via the
VF object in the PF data structure.

Bruce fixes return values to resolve static analysis warnings.  Made
whitespace changes to increase readability and reduce code wrapping.

Anirudh cleans up code by removing a function prototype that was never
implemented and removed an unused field in the ice_sched_vsi_info
structure.

Kiran fixes a potential divide by zero issue by adding a check.

Victor cleans up the transmit scheduler by adjusting the stack variable
usage and added/modified debug prints to make them more useful.

Yashaswini updates the driver in VEB mode to ensure that the LAN_EN bit
is set if all the right conditions are met.

Christopher ensures the loopback enable bit is not set for prune switch
rules, since all transmit traffic would be looped back to the internal
switch and dropped.
====================

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

1 files changed, 79 insertions, 16 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index d3061f243877..7a692f80bda4 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -297,13 +297,19 @@ static void ice_vsi_set_num_desc(struct ice_vsi *vsi)
 /**
  * ice_vsi_set_num_qs - Set number of queues, descriptors and vectors for a VSI
  * @vsi: the VSI being configured
+ * @vf_id: Id of the VF being configured
  *
  * Return 0 on success and a negative value on error
  */
-static void ice_vsi_set_num_qs(struct ice_vsi *vsi)
+static void ice_vsi_set_num_qs(struct ice_vsi *vsi, u16 vf_id)
 {
 	struct ice_pf *pf = vsi->back;
 
+	struct ice_vf *vf = NULL;
+
+	if (vsi->type == ICE_VSI_VF)
+		vsi->vf_id = vf_id;
+
 	switch (vsi->type) {
 	case ICE_VSI_PF:
 		vsi->alloc_txq = pf->num_lan_tx;
@@ -311,8 +317,9 @@ static void ice_vsi_set_num_qs(struct ice_vsi *vsi)
 		vsi->num_q_vectors = max_t(int, pf->num_lan_rx, pf->num_lan_tx);
 		break;
 	case ICE_VSI_VF:
-		vsi->alloc_txq = pf->num_vf_qps;
-		vsi->alloc_rxq = pf->num_vf_qps;
+		vf = &pf->vf[vsi->vf_id];
+		vsi->alloc_txq = vf->num_vf_qs;
+		vsi->alloc_rxq = vf->num_vf_qs;
 		/* pf->num_vf_msix includes (VF miscellaneous vector +
 		 * data queue interrupts). Since vsi->num_q_vectors is number
 		 * of queues vectors, subtract 1 from the original vector
@@ -472,10 +479,12 @@ static irqreturn_t ice_msix_clean_rings(int __always_unused irq, void *data)
  * ice_vsi_alloc - Allocates the next available struct VSI in the PF
  * @pf: board private structure
  * @type: type of VSI
+ * @vf_id: Id of the VF being configured
  *
  * returns a pointer to a VSI on success, NULL on failure.
  */
-static struct ice_vsi *ice_vsi_alloc(struct ice_pf *pf, enum ice_vsi_type type)
+static struct ice_vsi *
+ice_vsi_alloc(struct ice_pf *pf, enum ice_vsi_type type, u16 vf_id)
 {
 	struct ice_vsi *vsi = NULL;
 
@@ -501,7 +510,10 @@ static struct ice_vsi *ice_vsi_alloc(struct ice_pf *pf, enum ice_vsi_type type)
 	vsi->idx = pf->next_vsi;
 	vsi->work_lmt = ICE_DFLT_IRQ_WORK;
 
-	ice_vsi_set_num_qs(vsi);
+	if (type == ICE_VSI_VF)
+		ice_vsi_set_num_qs(vsi, vf_id);
+	else
+		ice_vsi_set_num_qs(vsi, ICE_INVAL_VFID);
 
 	switch (vsi->type) {
 	case ICE_VSI_PF:
@@ -869,7 +881,18 @@ static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt)
 		tx_count += tx_numq_tc;
 		ctxt->info.tc_mapping[i] = cpu_to_le16(qmap);
 	}
-	vsi->num_rxq = offset;
+
+	/* if offset is non-zero, means it is calculated correctly based on
+	 * enabled TCs for a given VSI otherwise qcount_rx will always
+	 * be correct and non-zero because it is based off - VSI's
+	 * allocated Rx queues which is at least 1 (hence qcount_tx will be
+	 * at least 1)
+	 */
+	if (offset)
+		vsi->num_rxq = offset;
+	else
+		vsi->num_rxq = qcount_rx;
+
 	vsi->num_txq = tx_count;
 
 	if (vsi->type == ICE_VSI_VF && vsi->num_txq != vsi->num_rxq) {
@@ -940,6 +963,7 @@ static int ice_vsi_init(struct ice_vsi *vsi)
 	if (!ctxt)
 		return -ENOMEM;
 
+	ctxt->info = vsi->info;
 	switch (vsi->type) {
 	case ICE_VSI_PF:
 		ctxt->flags = ICE_AQ_VSI_TYPE_PF;
@@ -965,6 +989,14 @@ static int ice_vsi_init(struct ice_vsi *vsi)
 	ctxt->info.sw_id = vsi->port_info->sw_id;
 	ice_vsi_setup_q_map(vsi, ctxt);
 
+	/* Enable MAC Antispoof with new VSI being initialized or updated */
+	if (vsi->type == ICE_VSI_VF && pf->vf[vsi->vf_id].spoofchk) {
+		ctxt->info.valid_sections |=
+			cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
+		ctxt->info.sec_flags |=
+			ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF;
+	}
+
 	ret = ice_add_vsi(hw, vsi->idx, ctxt, NULL);
 	if (ret) {
 		dev_err(&pf->pdev->dev,
@@ -2075,8 +2107,9 @@ err_alloc_q_ids:
  * @rst_src: reset source
  * @rel_vmvf_num: Relative id of VF/VM
  */
-int ice_vsi_stop_lan_tx_rings(struct ice_vsi *vsi,
-			      enum ice_disq_rst_src rst_src, u16 rel_vmvf_num)
+int
+ice_vsi_stop_lan_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src,
+			  u16 rel_vmvf_num)
 {
 	return ice_vsi_stop_tx_rings(vsi, rst_src, rel_vmvf_num, vsi->tx_rings,
 				     0);
@@ -2086,10 +2119,11 @@ int ice_vsi_stop_lan_tx_rings(struct ice_vsi *vsi,
  * ice_cfg_vlan_pruning - enable or disable VLAN pruning on the VSI
  * @vsi: VSI to enable or disable VLAN pruning on
  * @ena: set to true to enable VLAN pruning and false to disable it
+ * @vlan_promisc: enable valid security flags if not in VLAN promiscuous mode
  *
  * returns 0 if VSI is updated, negative otherwise
  */
-int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena)
+int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena, bool vlan_promisc)
 {
 	struct ice_vsi_ctx *ctxt;
 	struct device *dev;
@@ -2117,8 +2151,10 @@ int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena)
 		ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
 	}
 
-	ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID |
-						ICE_AQ_VSI_PROP_SW_VALID);
+	if (!vlan_promisc)
+		ctxt->info.valid_sections =
+			cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID |
+				    ICE_AQ_VSI_PROP_SW_VALID);
 
 	status = ice_update_vsi(&vsi->back->hw, vsi->idx, ctxt, NULL);
 	if (status) {
@@ -2162,7 +2198,11 @@ ice_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi,
 	struct ice_vsi *vsi;
 	int ret, i;
 
-	vsi = ice_vsi_alloc(pf, type);
+	if (type == ICE_VSI_VF)
+		vsi = ice_vsi_alloc(pf, type, vf_id);
+	else
+		vsi = ice_vsi_alloc(pf, type, ICE_INVAL_VFID);
+
 	if (!vsi) {
 		dev_err(dev, "could not allocate VSI\n");
 		return NULL;
@@ -2646,6 +2686,7 @@ int ice_vsi_release(struct ice_vsi *vsi)
 int ice_vsi_rebuild(struct ice_vsi *vsi)
 {
 	u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 };
+	struct ice_vf *vf = NULL;
 	struct ice_pf *pf;
 	int ret, i;
 
@@ -2653,16 +2694,38 @@ int ice_vsi_rebuild(struct ice_vsi *vsi)
 		return -EINVAL;
 
 	pf = vsi->back;
+	if (vsi->type == ICE_VSI_VF)
+		vf = &pf->vf[vsi->vf_id];
+
 	ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx);
 	ice_vsi_free_q_vectors(vsi);
-	ice_free_res(vsi->back->sw_irq_tracker, vsi->sw_base_vector, vsi->idx);
-	ice_free_res(vsi->back->hw_irq_tracker, vsi->hw_base_vector, vsi->idx);
-	vsi->sw_base_vector = 0;
+
+	if (vsi->type != ICE_VSI_VF) {
+		/* reclaim SW interrupts back to the common pool */
+		ice_free_res(pf->sw_irq_tracker, vsi->sw_base_vector, vsi->idx);
+		pf->num_avail_sw_msix += vsi->num_q_vectors;
+		vsi->sw_base_vector = 0;
+		/* reclaim HW interrupts back to the common pool */
+		ice_free_res(pf->hw_irq_tracker, vsi->hw_base_vector,
+			     vsi->idx);
+		pf->num_avail_hw_msix += vsi->num_q_vectors;
+	} else {
+		/* Reclaim VF resources back to the common pool for reset and
+		 * and rebuild, with vector reassignment
+		 */
+		ice_free_res(pf->hw_irq_tracker, vf->first_vector_idx,
+			     vsi->idx);
+		pf->num_avail_hw_msix += pf->num_vf_msix;
+	}
 	vsi->hw_base_vector = 0;
+
 	ice_vsi_clear_rings(vsi);
 	ice_vsi_free_arrays(vsi, false);
 	ice_dev_onetime_setup(&vsi->back->hw);
-	ice_vsi_set_num_qs(vsi);
+	if (vsi->type == ICE_VSI_VF)
+		ice_vsi_set_num_qs(vsi, vf->vf_id);
+	else
+		ice_vsi_set_num_qs(vsi, ICE_INVAL_VFID);
 	ice_vsi_set_tc_cfg(vsi);
 
 	/* Initialize VSI struct elements and create VSI in FW */