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 2019-08-23

This series contains updates to ice driver only.

Dave adds logic for the necessary bits to be set in the VSI context for
the PF_VSI and the TX_descriptors for control packets egressing the
PF_VSI.  Updated the logic to detect both DCBx and LLDP states in the
firmware engine to account for situations where DCBx is enabled and LLDP
is disabled.  Fixed the driver to treat the DCBx state of "NOT_STARTED"
as a valid state and should not assume "is_fw_lldp" true automatically.
Since "enable-fw-lldp" flag was confusing and cumbersome, change the
flag to "fw-lldp-agent" with a value of on or off to help clarify
whether the LLDP agent is running or not.

Brett fixes an issue where synchronize_irq() was being called from the
host of VF's, which should not be done.

Michal fixed an issue when rebuilding the DCBx configuration while in
IEEE mode versus CEE mode, so add a check before copying the
configuration value to ensure we are only in CEE mode.

Jake fixes the PF to reject any VF request to setup head writeback since
the support has been deprecated.

Mitch adds an additional check to ensure the VF is active before sending
out an error message that a message was unable to be sent to a
particular VF.

Chinh updates the driver to use "topology" mode when checking the PHY
for status, since this mode provides us the current module type that is
available.  Fixes the driver from clearing the auto_fec_enable bit which
was blocking a user from forcing non-spec compliant FEC configurations.

Amruth does a refactor on the code to first check, then assign in the
virtual channel space.

Bruce updates the driver to actually update the stats when a user runs
the ethtool command 'ethtool -S <iface>' instead of providing a snapshot
of the stats that maybe from a second ago.

Akeem fixes up the adding/removing of VSI MAC filters for VFs, so that
VFs cannot add/remove a filter from another VSI.  We now track the
number of filters added right from when the VF resources get allocated
and won't get into MAC filter mis-match issue in the switch.
====================

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

1 files changed, 58 insertions, 55 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index 1b1d1ea0c8f9..86637d99ee77 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -540,7 +540,10 @@ static int ice_alloc_vsi_res(struct ice_vf *vf)
 
 	status = ice_add_mac(&pf->hw, &tmp_add_list);
 	if (status)
-		dev_err(&pf->pdev->dev, "could not add mac filters\n");
+		dev_err(&pf->pdev->dev,
+			"could not add mac filters error %d\n", status);
+	else
+		vf->num_mac = 1;
 
 	/* Clear this bit after VF initialization since we shouldn't reclaim
 	 * and reassign interrupts for synchronous or asynchronous VFR events.
@@ -1512,10 +1515,10 @@ ice_vc_send_msg_to_vf(struct ice_vf *vf, u32 v_opcode,
 
 	aq_ret = ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, v_opcode, v_retval,
 				       msg, msglen, NULL);
-	if (aq_ret) {
+	if (aq_ret && pf->hw.mailboxq.sq_last_status != ICE_AQ_RC_ENOSYS) {
 		dev_info(&pf->pdev->dev,
-			 "Unable to send the message to VF %d aq_err %d\n",
-			 vf->vf_id, pf->hw.mailboxq.sq_last_status);
+			 "Unable to send the message to VF %d ret %d aq_err %d\n",
+			 vf->vf_id, aq_ret, pf->hw.mailboxq.sq_last_status);
 		return -EIO;
 	}
 
@@ -1734,18 +1737,18 @@ static int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg)
 		goto error_param;
 	}
 
-	vsi = pf->vsi[vf->lan_vsi_idx];
-	if (!vsi) {
+	if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
 
-	if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
+	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
 
-	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
+	vsi = pf->vsi[vf->lan_vsi_idx];
+	if (!vsi) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
@@ -1781,18 +1784,18 @@ static int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg)
 		goto error_param;
 	}
 
-	vsi = pf->vsi[vf->lan_vsi_idx];
-	if (!vsi) {
+	if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
 
-	if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
+	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
 
-	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
+	vsi = pf->vsi[vf->lan_vsi_idx];
+	if (!vsi) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
 	}
@@ -1877,6 +1880,12 @@ static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg)
 		goto error_param;
 	}
 
+	if (vqs->rx_queues > ICE_MAX_BASE_QS_PER_VF ||
+	    vqs->tx_queues > ICE_MAX_BASE_QS_PER_VF) {
+		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+		goto error_param;
+	}
+
 	vsi = pf->vsi[vf->lan_vsi_idx];
 	if (!vsi) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
@@ -1932,6 +1941,12 @@ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
 		goto error_param;
 	}
 
+	if (vqs->rx_queues > ICE_MAX_BASE_QS_PER_VF ||
+	    vqs->tx_queues > ICE_MAX_BASE_QS_PER_VF) {
+		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+		goto error_param;
+	}
+
 	vsi = pf->vsi[vf->lan_vsi_idx];
 	if (!vsi) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
@@ -1984,12 +1999,6 @@ static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
 	irqmap_info = (struct virtchnl_irq_map_info *)msg;
 	num_q_vectors_mapped = irqmap_info->num_vectors;
 
-	vsi = pf->vsi[vf->lan_vsi_idx];
-	if (!vsi) {
-		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
-		goto error_param;
-	}
-
 	/* Check to make sure number of VF vectors mapped is not greater than
 	 * number of VF vectors originally allocated, and check that
 	 * there is actually at least a single VF queue vector mapped
@@ -2001,6 +2010,12 @@ static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
 		goto error_param;
 	}
 
+	vsi = pf->vsi[vf->lan_vsi_idx];
+	if (!vsi) {
+		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+		goto error_param;
+	}
+
 	for (i = 0; i < num_q_vectors_mapped; i++) {
 		struct ice_q_vector *q_vector;
 
@@ -2092,10 +2107,6 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
 		goto error_param;
 	}
 
-	vsi = pf->vsi[vf->lan_vsi_idx];
-	if (!vsi)
-		goto error_param;
-
 	if (qci->num_queue_pairs > ICE_MAX_BASE_QS_PER_VF) {
 		dev_err(&pf->pdev->dev,
 			"VF-%d requesting more than supported number of queues: %d\n",
@@ -2104,11 +2115,18 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
 		goto error_param;
 	}
 
+	vsi = pf->vsi[vf->lan_vsi_idx];
+	if (!vsi) {
+		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+		goto error_param;
+	}
+
 	for (i = 0; i < qci->num_queue_pairs; i++) {
 		qpi = &qci->qpair[i];
 		if (qpi->txq.vsi_id != qci->vsi_id ||
 		    qpi->rxq.vsi_id != qci->vsi_id ||
 		    qpi->rxq.queue_id != qpi->txq.queue_id ||
+		    qpi->txq.headwb_enabled ||
 		    !ice_vc_isvalid_q_id(vf, qci->vsi_id, qpi->txq.queue_id)) {
 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 			goto error_param;
@@ -2193,7 +2211,7 @@ ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set)
 	    (struct virtchnl_ether_addr_list *)msg;
 	struct ice_pf *pf = vf->pf;
 	enum virtchnl_ops vc_op;
-	LIST_HEAD(mac_list);
+	enum ice_status status;
 	struct ice_vsi *vsi;
 	int mac_count = 0;
 	int i;
@@ -2267,33 +2285,32 @@ ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set)
 			goto handle_mac_exit;
 		}
 
-		/* get here if maddr is multicast or if VF can change MAC */
-		if (ice_add_mac_to_list(vsi, &mac_list, al->list[i].addr)) {
-			v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
+		/* program the updated filter list */
+		status = ice_vsi_cfg_mac_fltr(vsi, maddr, set);
+		if (status == ICE_ERR_DOES_NOT_EXIST ||
+		    status == ICE_ERR_ALREADY_EXISTS) {
+			dev_info(&pf->pdev->dev,
+				 "can't %s MAC filters %pM for VF %d, error %d\n",
+				 set ? "add" : "remove", maddr, vf->vf_id,
+				 status);
+		} else if (status) {
+			dev_err(&pf->pdev->dev,
+				"can't %s MAC filters for VF %d, error %d\n",
+				set ? "add" : "remove", vf->vf_id, status);
+			v_ret = ice_err_to_virt_err(status);
 			goto handle_mac_exit;
 		}
+
 		mac_count++;
 	}
 
-	/* program the updated filter list */
+	/* Track number of MAC filters programmed for the VF VSI */
 	if (set)
-		v_ret = ice_err_to_virt_err(ice_add_mac(&pf->hw, &mac_list));
+		vf->num_mac += mac_count;
 	else
-		v_ret = ice_err_to_virt_err(ice_remove_mac(&pf->hw, &mac_list));
-
-	if (v_ret) {
-		dev_err(&pf->pdev->dev,
-			"can't %s MAC filters for VF %d, error %d\n",
-			set ? "add" : "remove", vf->vf_id, v_ret);
-	} else {
-		if (set)
-			vf->num_mac += mac_count;
-		else
-			vf->num_mac -= mac_count;
-	}
+		vf->num_mac -= mac_count;
 
 handle_mac_exit:
-	ice_free_fltr_list(&pf->pdev->dev, &mac_list);
 	/* send the response to the VF */
 	return ice_vc_send_msg_to_vf(vf, vc_op, v_ret, NULL, 0);
 }
@@ -2754,20 +2771,6 @@ void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event)
 			err = -EPERM;
 		else
 			err = -EINVAL;
-		goto error_handler;
-	}
-
-	/* Perform additional checks specific to RSS and Virtchnl */
-	if (v_opcode == VIRTCHNL_OP_CONFIG_RSS_KEY) {
-		struct virtchnl_rss_key *vrk = (struct virtchnl_rss_key *)msg;
-
-		if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE)
-			err = -EINVAL;
-	} else if (v_opcode == VIRTCHNL_OP_CONFIG_RSS_LUT) {
-		struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg;
-
-		if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE)
-			err = -EINVAL;
 	}
 
 error_handler: