Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from David Miller:

 1) Support IPV6 RA Captive Portal Identifier, from Maciej Żenczykowski.

 2) Use bio_vec in the networking instead of custom skb_frag_t, from
    Matthew Wilcox.

 3) Make use of xmit_more in r8169 driver, from Heiner Kallweit.

 4) Add devmap_hash to xdp, from Toke Høiland-Jørgensen.

 5) Support all variants of 5750X bnxt_en chips, from Michael Chan.

 6) More RTNL avoidance work in the core and mlx5 driver, from Vlad
    Buslov.

 7) Add TCP syn cookies bpf helper, from Petar Penkov.

 8) Add 'nettest' to selftests and use it, from David Ahern.

 9) Add extack support to drop_monitor, add packet alert mode and
    support for HW drops, from Ido Schimmel.

10) Add VLAN offload to stmmac, from Jose Abreu.

11) Lots of devm_platform_ioremap_resource() conversions, from
    YueHaibing.

12) Add IONIC driver, from Shannon Nelson.

13) Several kTLS cleanups, from Jakub Kicinski.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1930 commits)
  mlxsw: spectrum_buffers: Add the ability to query the CPU port's shared buffer
  mlxsw: spectrum: Register CPU port with devlink
  mlxsw: spectrum_buffers: Prevent changing CPU port's configuration
  net: ena: fix incorrect update of intr_delay_resolution
  net: ena: fix retrieval of nonadaptive interrupt moderation intervals
  net: ena: fix update of interrupt moderation register
  net: ena: remove all old adaptive rx interrupt moderation code from ena_com
  net: ena: remove ena_restore_ethtool_params() and relevant fields
  net: ena: remove old adaptive interrupt moderation code from ena_netdev
  net: ena: remove code duplication in ena_com_update_nonadaptive_moderation_interval _*()
  net: ena: enable the interrupt_moderation in driver_supported_features
  net: ena: reimplement set/get_coalesce()
  net: ena: switch to dim algorithm for rx adaptive interrupt moderation
  net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
  net: phy: adin: implement Energy Detect Powerdown mode via phy-tunable
  ethtool: implement Energy Detect Powerdown support via phy-tunable
  xen-netfront: do not assume sk_buff_head list is empty in error handling
  s390/ctcm: Delete unnecessary checks before the macro call “dev_kfree_skb”
  net: ena: don't wake up tx queue when down
  drop_monitor: Better sanitize notified packets
  ...

1 files changed, 59 insertions, 2 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 8271fd651725..1acdd43a2edd 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -1623,12 +1623,13 @@ ice_remove_rule_internal(struct ice_hw *hw, u8 recp_id,
 		status = ice_aq_sw_rules(hw, s_rule,
 					 ICE_SW_RULE_RX_TX_NO_HDR_SIZE, 1,
 					 ice_aqc_opc_remove_sw_rules, NULL);
-		if (status)
-			goto exit;
 
 		/* Remove a book keeping from the list */
 		devm_kfree(ice_hw_to_dev(hw), s_rule);
 
+		if (status)
+			goto exit;
+
 		list_del(&list_elem->list_entry);
 		devm_kfree(ice_hw_to_dev(hw), list_elem);
 	}
@@ -2137,6 +2138,38 @@ out:
 }
 
 /**
+ * ice_find_ucast_rule_entry - Search for a unicast MAC filter rule entry
+ * @hw: pointer to the hardware structure
+ * @recp_id: lookup type for which the specified rule needs to be searched
+ * @f_info: rule information
+ *
+ * Helper function to search for a unicast rule entry - this is to be used
+ * to remove unicast MAC filter that is not shared with other VSIs on the
+ * PF switch.
+ *
+ * Returns pointer to entry storing the rule if found
+ */
+static struct ice_fltr_mgmt_list_entry *
+ice_find_ucast_rule_entry(struct ice_hw *hw, u8 recp_id,
+			  struct ice_fltr_info *f_info)
+{
+	struct ice_switch_info *sw = hw->switch_info;
+	struct ice_fltr_mgmt_list_entry *list_itr;
+	struct list_head *list_head;
+
+	list_head = &sw->recp_list[recp_id].filt_rules;
+	list_for_each_entry(list_itr, list_head, list_entry) {
+		if (!memcmp(&f_info->l_data, &list_itr->fltr_info.l_data,
+			    sizeof(f_info->l_data)) &&
+		    f_info->fwd_id.hw_vsi_id ==
+		    list_itr->fltr_info.fwd_id.hw_vsi_id &&
+		    f_info->flag == list_itr->fltr_info.flag)
+			return list_itr;
+	}
+	return NULL;
+}
+
+/**
  * ice_remove_mac - remove a MAC address based filter rule
  * @hw: pointer to the hardware structure
  * @m_list: list of MAC addresses and forwarding information
@@ -2153,15 +2186,39 @@ enum ice_status
 ice_remove_mac(struct ice_hw *hw, struct list_head *m_list)
 {
 	struct ice_fltr_list_entry *list_itr, *tmp;
+	struct mutex *rule_lock; /* Lock to protect filter rule list */
 
 	if (!m_list)
 		return ICE_ERR_PARAM;
 
+	rule_lock = &hw->switch_info->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock;
 	list_for_each_entry_safe(list_itr, tmp, m_list, list_entry) {
 		enum ice_sw_lkup_type l_type = list_itr->fltr_info.lkup_type;
+		u8 *add = &list_itr->fltr_info.l_data.mac.mac_addr[0];
+		u16 vsi_handle;
 
 		if (l_type != ICE_SW_LKUP_MAC)
 			return ICE_ERR_PARAM;
+
+		vsi_handle = list_itr->fltr_info.vsi_handle;
+		if (!ice_is_vsi_valid(hw, vsi_handle))
+			return ICE_ERR_PARAM;
+
+		list_itr->fltr_info.fwd_id.hw_vsi_id =
+					ice_get_hw_vsi_num(hw, vsi_handle);
+		if (is_unicast_ether_addr(add) && !hw->ucast_shared) {
+			/* Don't remove the unicast address that belongs to
+			 * another VSI on the switch, since it is not being
+			 * shared...
+			 */
+			mutex_lock(rule_lock);
+			if (!ice_find_ucast_rule_entry(hw, ICE_SW_LKUP_MAC,
+						       &list_itr->fltr_info)) {
+				mutex_unlock(rule_lock);
+				return ICE_ERR_DOES_NOT_EXIST;
+			}
+			mutex_unlock(rule_lock);
+		}
 		list_itr->status = ice_remove_rule_internal(hw,
 							    ICE_SW_LKUP_MAC,
 							    list_itr);