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ice: Add support for switch filter programming
A VSI needs traffic directed towards it. This is done by programming filter rules on the switch (embedded vSwitch) element in the hardware, which connects the VSI to the ingress/egress port. This patch introduces data structures and functions necessary to add remove or update switch rules on the switch element. This is a pretty low level function that is generic enough to add a whole range of filters. This patch also introduces two top level functions ice_add_mac and ice_remove mac which through a series of intermediate helper functions eventually call ice_aq_sw_rules to add/delete simple MAC based filters. It's worth noting that one invocation of ice_add_mac/ice_remove_mac is capable of adding/deleting multiple MAC filters. Also worth noting is the fact that the driver maintains a list of currently active filters, so every filter addition/removal causes an update to this list. This is done for a couple of reasons: 1) If two VSIs try to add the same filters, we need to detect it and do things a little differently (i.e. use VSI lists, described below) as the same filter can't be added more than once. 2) In the event of a hardware reset we can simply walk through this list and restore the filters. VSI Lists: In a multi-VSI situation, it's possible that multiple VSIs want to add the same filter rule. For example, two VSIs that want to receive broadcast traffic would both add a filter for destination MAC ff:ff:ff:ff:ff:ff. This can become cumbersome to maintain and so this is handled using a VSI list. A VSI list is resource that can be allocated in the hardware using the ice_aq_alloc_free_res admin queue command. Simply put, a VSI list can be thought of as a subscription list containing a set of VSIs to which the packet should be forwarded, should the filter match. For example, if VSI-0 has already added a broadcast filter, and VSI-1 wants to do the same thing, the filter creation flow will detect this, allocate a VSI list and update the switch rule so that broadcast traffic will now be forwarded to the VSI list which contains VSI-0 and VSI-1. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Anirudh Venkataramanan
committed by
Jeff Kirsher
Jeff Kirsher
parent
3a858ba392
commit
9daf8208dd
@@ -8,6 +8,7 @@
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* descriptor format. It is shared between Firmware and Software.
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*/
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#define ICE_MAX_VSI 768
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#define ICE_AQC_TOPO_MAX_LEVEL_NUM 0x9
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#define ICE_AQ_SET_MAC_FRAME_SIZE_MAX 9728
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@@ -191,6 +192,46 @@ struct ice_aqc_get_sw_cfg_resp {
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struct ice_aqc_get_sw_cfg_resp_elem elements[1];
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};
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/* These resource type defines are used for all switch resource
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* commands where a resource type is required, such as:
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* Get Resource Allocation command (indirect 0x0204)
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* Allocate Resources command (indirect 0x0208)
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* Free Resources command (indirect 0x0209)
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* Get Allocated Resource Descriptors Command (indirect 0x020A)
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*/
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#define ICE_AQC_RES_TYPE_VSI_LIST_REP 0x03
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#define ICE_AQC_RES_TYPE_VSI_LIST_PRUNE 0x04
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/* Allocate Resources command (indirect 0x0208)
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* Free Resources command (indirect 0x0209)
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*/
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struct ice_aqc_alloc_free_res_cmd {
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__le16 num_entries; /* Number of Resource entries */
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u8 reserved[6];
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__le32 addr_high;
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__le32 addr_low;
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};
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/* Resource descriptor */
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struct ice_aqc_res_elem {
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union {
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__le16 sw_resp;
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__le16 flu_resp;
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} e;
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};
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/* Buffer for Allocate/Free Resources commands */
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struct ice_aqc_alloc_free_res_elem {
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__le16 res_type; /* Types defined above cmd 0x0204 */
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#define ICE_AQC_RES_TYPE_SHARED_S 7
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#define ICE_AQC_RES_TYPE_SHARED_M (0x1 << ICE_AQC_RES_TYPE_SHARED_S)
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#define ICE_AQC_RES_TYPE_VSI_PRUNE_LIST_S 8
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#define ICE_AQC_RES_TYPE_VSI_PRUNE_LIST_M \
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(0xF << ICE_AQC_RES_TYPE_VSI_PRUNE_LIST_S)
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__le16 num_elems;
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struct ice_aqc_res_elem elem[1];
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};
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/* Add VSI (indirect 0x0210)
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* Update VSI (indirect 0x0211)
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* Get VSI (indirect 0x0212)
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@@ -384,6 +425,202 @@ struct ice_aqc_vsi_props {
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u8 reserved[24];
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};
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/* Add/Update/Remove/Get switch rules (indirect 0x02A0, 0x02A1, 0x02A2, 0x02A3)
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*/
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struct ice_aqc_sw_rules {
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/* ops: add switch rules, referring the number of rules.
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* ops: update switch rules, referring the number of filters
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* ops: remove switch rules, referring the entry index.
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* ops: get switch rules, referring to the number of filters.
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*/
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__le16 num_rules_fltr_entry_index;
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u8 reserved[6];
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__le32 addr_high;
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__le32 addr_low;
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};
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/* Add/Update/Get/Remove lookup Rx/Tx command/response entry
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* This structures describes the lookup rules and associated actions. "index"
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* is returned as part of a response to a successful Add command, and can be
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* used to identify the rule for Update/Get/Remove commands.
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*/
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struct ice_sw_rule_lkup_rx_tx {
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__le16 recipe_id;
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#define ICE_SW_RECIPE_LOGICAL_PORT_FWD 10
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/* Source port for LOOKUP_RX and source VSI in case of LOOKUP_TX */
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__le16 src;
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__le32 act;
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/* Bit 0:1 - Action type */
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#define ICE_SINGLE_ACT_TYPE_S 0x00
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#define ICE_SINGLE_ACT_TYPE_M (0x3 << ICE_SINGLE_ACT_TYPE_S)
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/* Bit 2 - Loop back enable
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* Bit 3 - LAN enable
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*/
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#define ICE_SINGLE_ACT_LB_ENABLE BIT(2)
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#define ICE_SINGLE_ACT_LAN_ENABLE BIT(3)
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/* Action type = 0 - Forward to VSI or VSI list */
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#define ICE_SINGLE_ACT_VSI_FORWARDING 0x0
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#define ICE_SINGLE_ACT_VSI_ID_S 4
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#define ICE_SINGLE_ACT_VSI_ID_M (0x3FF << ICE_SINGLE_ACT_VSI_ID_S)
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#define ICE_SINGLE_ACT_VSI_LIST_ID_S 4
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#define ICE_SINGLE_ACT_VSI_LIST_ID_M (0x3FF << ICE_SINGLE_ACT_VSI_LIST_ID_S)
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/* This bit needs to be set if action is forward to VSI list */
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#define ICE_SINGLE_ACT_VSI_LIST BIT(14)
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#define ICE_SINGLE_ACT_VALID_BIT BIT(17)
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#define ICE_SINGLE_ACT_DROP BIT(18)
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/* Action type = 1 - Forward to Queue of Queue group */
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#define ICE_SINGLE_ACT_TO_Q 0x1
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#define ICE_SINGLE_ACT_Q_INDEX_S 4
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#define ICE_SINGLE_ACT_Q_INDEX_M (0x7FF << ICE_SINGLE_ACT_Q_INDEX_S)
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#define ICE_SINGLE_ACT_Q_REGION_S 15
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#define ICE_SINGLE_ACT_Q_REGION_M (0x7 << ICE_SINGLE_ACT_Q_REGION_S)
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#define ICE_SINGLE_ACT_Q_PRIORITY BIT(18)
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/* Action type = 2 - Prune */
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#define ICE_SINGLE_ACT_PRUNE 0x2
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#define ICE_SINGLE_ACT_EGRESS BIT(15)
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#define ICE_SINGLE_ACT_INGRESS BIT(16)
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#define ICE_SINGLE_ACT_PRUNET BIT(17)
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/* Bit 18 should be set to 0 for this action */
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/* Action type = 2 - Pointer */
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#define ICE_SINGLE_ACT_PTR 0x2
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#define ICE_SINGLE_ACT_PTR_VAL_S 4
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#define ICE_SINGLE_ACT_PTR_VAL_M (0x1FFF << ICE_SINGLE_ACT_PTR_VAL_S)
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/* Bit 18 should be set to 1 */
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#define ICE_SINGLE_ACT_PTR_BIT BIT(18)
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/* Action type = 3 - Other actions. Last two bits
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* are other action identifier
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*/
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#define ICE_SINGLE_ACT_OTHER_ACTS 0x3
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#define ICE_SINGLE_OTHER_ACT_IDENTIFIER_S 17
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#define ICE_SINGLE_OTHER_ACT_IDENTIFIER_M \
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(0x3 << \ ICE_SINGLE_OTHER_ACT_IDENTIFIER_S)
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/* Bit 17:18 - Defines other actions */
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/* Other action = 0 - Mirror VSI */
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#define ICE_SINGLE_OTHER_ACT_MIRROR 0
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#define ICE_SINGLE_ACT_MIRROR_VSI_ID_S 4
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#define ICE_SINGLE_ACT_MIRROR_VSI_ID_M \
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(0x3FF << ICE_SINGLE_ACT_MIRROR_VSI_ID_S)
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/* Other action = 3 - Set Stat count */
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#define ICE_SINGLE_OTHER_ACT_STAT_COUNT 3
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#define ICE_SINGLE_ACT_STAT_COUNT_INDEX_S 4
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#define ICE_SINGLE_ACT_STAT_COUNT_INDEX_M \
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(0x7F << ICE_SINGLE_ACT_STAT_COUNT_INDEX_S)
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__le16 index; /* The index of the rule in the lookup table */
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/* Length and values of the header to be matched per recipe or
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* lookup-type
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*/
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__le16 hdr_len;
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u8 hdr[1];
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} __packed;
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/* Add/Update/Remove large action command/response entry
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* "index" is returned as part of a response to a successful Add command, and
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* can be used to identify the action for Update/Get/Remove commands.
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*/
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struct ice_sw_rule_lg_act {
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__le16 index; /* Index in large action table */
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__le16 size;
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__le32 act[1]; /* array of size for actions */
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/* Max number of large actions */
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#define ICE_MAX_LG_ACT 4
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/* Bit 0:1 - Action type */
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#define ICE_LG_ACT_TYPE_S 0
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#define ICE_LG_ACT_TYPE_M (0x7 << ICE_LG_ACT_TYPE_S)
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/* Action type = 0 - Forward to VSI or VSI list */
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#define ICE_LG_ACT_VSI_FORWARDING 0
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#define ICE_LG_ACT_VSI_ID_S 3
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#define ICE_LG_ACT_VSI_ID_M (0x3FF << ICE_LG_ACT_VSI_ID_S)
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#define ICE_LG_ACT_VSI_LIST_ID_S 3
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#define ICE_LG_ACT_VSI_LIST_ID_M (0x3FF << ICE_LG_ACT_VSI_LIST_ID_S)
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/* This bit needs to be set if action is forward to VSI list */
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#define ICE_LG_ACT_VSI_LIST BIT(13)
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#define ICE_LG_ACT_VALID_BIT BIT(16)
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/* Action type = 1 - Forward to Queue of Queue group */
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#define ICE_LG_ACT_TO_Q 0x1
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#define ICE_LG_ACT_Q_INDEX_S 3
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#define ICE_LG_ACT_Q_INDEX_M (0x7FF << ICE_LG_ACT_Q_INDEX_S)
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#define ICE_LG_ACT_Q_REGION_S 14
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#define ICE_LG_ACT_Q_REGION_M (0x7 << ICE_LG_ACT_Q_REGION_S)
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#define ICE_LG_ACT_Q_PRIORITY_SET BIT(17)
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/* Action type = 2 - Prune */
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#define ICE_LG_ACT_PRUNE 0x2
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#define ICE_LG_ACT_EGRESS BIT(14)
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#define ICE_LG_ACT_INGRESS BIT(15)
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#define ICE_LG_ACT_PRUNET BIT(16)
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/* Action type = 3 - Mirror VSI */
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#define ICE_LG_OTHER_ACT_MIRROR 0x3
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#define ICE_LG_ACT_MIRROR_VSI_ID_S 3
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#define ICE_LG_ACT_MIRROR_VSI_ID_M (0x3FF << ICE_LG_ACT_MIRROR_VSI_ID_S)
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/* Action type = 5 - Large Action */
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#define ICE_LG_ACT_GENERIC 0x5
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#define ICE_LG_ACT_GENERIC_VALUE_S 3
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#define ICE_LG_ACT_GENERIC_VALUE_M (0xFFFF << ICE_LG_ACT_GENERIC_VALUE_S)
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#define ICE_LG_ACT_GENERIC_OFFSET_S 19
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#define ICE_LG_ACT_GENERIC_OFFSET_M (0x7 << ICE_LG_ACT_GENERIC_OFFSET_S)
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#define ICE_LG_ACT_GENERIC_PRIORITY_S 22
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#define ICE_LG_ACT_GENERIC_PRIORITY_M (0x7 << ICE_LG_ACT_GENERIC_PRIORITY_S)
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/* Action = 7 - Set Stat count */
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#define ICE_LG_ACT_STAT_COUNT 0x7
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#define ICE_LG_ACT_STAT_COUNT_S 3
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#define ICE_LG_ACT_STAT_COUNT_M (0x7F << ICE_LG_ACT_STAT_COUNT_S)
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};
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/* Add/Update/Remove VSI list command/response entry
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* "index" is returned as part of a response to a successful Add command, and
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* can be used to identify the VSI list for Update/Get/Remove commands.
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*/
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struct ice_sw_rule_vsi_list {
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__le16 index; /* Index of VSI/Prune list */
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__le16 number_vsi;
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__le16 vsi[1]; /* Array of number_vsi VSI numbers */
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};
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/* Query VSI list command/response entry */
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struct ice_sw_rule_vsi_list_query {
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__le16 index;
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DECLARE_BITMAP(vsi_list, ICE_MAX_VSI);
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} __packed;
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/* Add switch rule response:
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* Content of return buffer is same as the input buffer. The status field and
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* LUT index are updated as part of the response
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*/
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struct ice_aqc_sw_rules_elem {
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__le16 type; /* Switch rule type, one of T_... */
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#define ICE_AQC_SW_RULES_T_LKUP_RX 0x0
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#define ICE_AQC_SW_RULES_T_LKUP_TX 0x1
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#define ICE_AQC_SW_RULES_T_LG_ACT 0x2
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#define ICE_AQC_SW_RULES_T_VSI_LIST_SET 0x3
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#define ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR 0x4
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#define ICE_AQC_SW_RULES_T_PRUNE_LIST_SET 0x5
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#define ICE_AQC_SW_RULES_T_PRUNE_LIST_CLEAR 0x6
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__le16 status;
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union {
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struct ice_sw_rule_lkup_rx_tx lkup_tx_rx;
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struct ice_sw_rule_lg_act lg_act;
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struct ice_sw_rule_vsi_list vsi_list;
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struct ice_sw_rule_vsi_list_query vsi_list_query;
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} __packed pdata;
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};
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/* Get Default Topology (indirect 0x0400) */
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struct ice_aqc_get_topo {
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u8 port_num;
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@@ -766,11 +1003,13 @@ struct ice_aq_desc {
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struct ice_aqc_list_caps get_cap;
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struct ice_aqc_get_phy_caps get_phy;
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struct ice_aqc_get_sw_cfg get_sw_conf;
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struct ice_aqc_sw_rules sw_rules;
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struct ice_aqc_get_topo get_topo;
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struct ice_aqc_query_txsched_res query_sched_res;
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struct ice_aqc_add_move_delete_elem add_move_delete_elem;
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struct ice_aqc_nvm nvm;
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struct ice_aqc_add_get_update_free_vsi vsi_cmd;
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struct ice_aqc_alloc_free_res_cmd sw_res_ctrl;
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struct ice_aqc_get_link_status get_link_status;
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} params;
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};
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@@ -821,10 +1060,20 @@ enum ice_adminq_opc {
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/* internal switch commands */
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ice_aqc_opc_get_sw_cfg = 0x0200,
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/* Alloc/Free/Get Resources */
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ice_aqc_opc_alloc_res = 0x0208,
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ice_aqc_opc_free_res = 0x0209,
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/* VSI commands */
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ice_aqc_opc_add_vsi = 0x0210,
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ice_aqc_opc_update_vsi = 0x0211,
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ice_aqc_opc_free_vsi = 0x0213,
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/* switch rules population commands */
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ice_aqc_opc_add_sw_rules = 0x02A0,
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ice_aqc_opc_update_sw_rules = 0x02A1,
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ice_aqc_opc_remove_sw_rules = 0x02A2,
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ice_aqc_opc_clear_pf_cfg = 0x02A4,
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/* transmit scheduler commands */
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