net: lan966x: add port module support

This patch adds support for netdev and phylink in the switch. The
injection + extraction is register based. This will be replaced with DMA
accees.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/microchip/lan966x/Makefile

@@ -5,4 +5,4 @@
 
 obj-$(CONFIG_LAN966X_SWITCH) += lan966x-switch.o
 
-lan966x-switch-objs  := lan966x_main.o
+lan966x-switch-objs  := lan966x_main.o lan966x_phylink.o lan966x_port.o

drivers/net/ethernet/microchip/lan966x/lan966x_ifh.h

@@ -0,0 +1,173 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef __LAN966X_IFH_H__
+#define __LAN966X_IFH_H__
+
+/* Fields with description (*) should just be cleared upon injection
+ * IFH is transmitted MSByte first (Highest bit pos sent as MSB of first byte)
+ */
+
+#define IFH_LEN                      7
+
+/* Timestamp for frame */
+#define IFH_POS_TIMESTAMP            192
+
+/* Bypass analyzer with a prefilled IFH */
+#define IFH_POS_BYPASS               191
+
+/* Masqueraded injection with masq_port defining logical source port */
+#define IFH_POS_MASQ                 190
+
+/* Masqueraded port number for injection */
+#define IFH_POS_MASQ_PORT            186
+
+/* Frame length (*) */
+#define IFH_POS_LEN                  178
+
+/* Cell filling mode. Full(0),Etype(1), LlctOpt(2), Llct(3) */
+#define IFH_POS_WRDMODE              176
+
+/* Frame has 16 bits rtag removed compared to line data */
+#define IFH_POS_RTAG48               175
+
+/* Frame has a redundancy tag */
+#define IFH_POS_HAS_RED_TAG          174
+
+/* Frame has been cut through forwarded (*) */
+#define IFH_POS_CUTTHRU              173
+
+/* Rewriter command */
+#define IFH_POS_REW_CMD              163
+
+/* Enable OAM-related rewriting. PDU_TYPE encodes OAM type. */
+#define IFH_POS_REW_OAM              162
+
+/* PDU type. Encoding: (0-NONE, 1-Y1731_CCM, 2-MRP_TST, 3-MRP_ITST, 4-DLR_BCN,
+ * 5-DLR_ADV, 6-RTE_NULL_INJ, 7-IPV4, 8-IPV6, 9-Y1731_NON_CCM).
+ */
+#define IFH_POS_PDU_TYPE             158
+
+/* Update FCS before transmission */
+#define IFH_POS_FCS_UPD              157
+
+/* Classified DSCP value of frame */
+#define IFH_POS_DSCP                 151
+
+/* Yellow indication */
+#define IFH_POS_DP                   150
+
+/* Process in RTE/inbound */
+#define IFH_POS_RTE_INB_UPDATE       149
+
+/* Number of tags to pop from frame */
+#define IFH_POS_POP_CNT              147
+
+/* Number of tags in front of the ethertype */
+#define IFH_POS_ETYPE_OFS            145
+
+/* Logical source port of frame (*) */
+#define IFH_POS_SRCPORT              141
+
+/* Sequence number in redundancy tag */
+#define IFH_POS_SEQ_NUM              120
+
+/* Stagd flag and classified TCI of frame (PCP/DEI/VID) */
+#define IFH_POS_TCI                  103
+
+/* Classified internal priority for queuing */
+#define IFH_POS_QOS_CLASS            100
+
+/* Bit mask with eight cpu copy classses */
+#define IFH_POS_CPUQ                 92
+
+/* Relearn + learn flags (*) */
+#define IFH_POS_LEARN_FLAGS          90
+
+/* SFLOW identifier for frame (0-8: Tx port, 9: Rx sampling, 15: No sampling) */
+#define IFH_POS_SFLOW_ID             86
+
+/* Set if an ACL/S2 rule was hit (*).
+ * Super priority: acl_hit=0 and acl_hit(4)=1.
+ */
+#define IFH_POS_ACL_HIT              85
+
+/* S2 rule index hit (*) */
+#define IFH_POS_ACL_IDX              79
+
+/* ISDX as classified by S1 */
+#define IFH_POS_ISDX                 71
+
+/* Destination ports for frame */
+#define IFH_POS_DSTS                 62
+
+/* Storm policer to be applied: None/Uni/Multi/Broad (*) */
+#define IFH_POS_FLOOD                60
+
+/* Redundancy tag operation */
+#define IFH_POS_SEQ_OP               58
+
+/* Classified internal priority for resourcemgt, tagging etc */
+#define IFH_POS_IPV                  55
+
+/* Frame is for AFI use */
+#define IFH_POS_AFI                  54
+
+/* Internal aging value (*) */
+#define IFH_POS_AGED                 52
+
+/* RTP Identifier */
+#define IFH_POS_RTP_ID               42
+
+/* RTP MRPD flow */
+#define IFH_POS_RTP_SUBID            41
+
+/* Profinet DataStatus or opcua GroupVersion MSB */
+#define IFH_POS_PN_DATA_STATUS       33
+
+/* Profinet transfer status (1 iff the status is 0) */
+#define IFH_POS_PN_TRANSF_STATUS_ZERO 32
+
+/* Profinet cycle counter or opcua NetworkMessageNumber */
+#define IFH_POS_PN_CC                16
+
+#define IFH_WID_TIMESTAMP            32
+#define IFH_WID_BYPASS               1
+#define IFH_WID_MASQ                 1
+#define IFH_WID_MASQ_PORT            4
+#define IFH_WID_LEN                  14
+#define IFH_WID_WRDMODE              2
+#define IFH_WID_RTAG48               1
+#define IFH_WID_HAS_RED_TAG          1
+#define IFH_WID_CUTTHRU              1
+#define IFH_WID_REW_CMD              10
+#define IFH_WID_REW_OAM              1
+#define IFH_WID_PDU_TYPE             4
+#define IFH_WID_FCS_UPD              1
+#define IFH_WID_DSCP                 6
+#define IFH_WID_DP                   1
+#define IFH_WID_RTE_INB_UPDATE       1
+#define IFH_WID_POP_CNT              2
+#define IFH_WID_ETYPE_OFS            2
+#define IFH_WID_SRCPORT              4
+#define IFH_WID_SEQ_NUM              16
+#define IFH_WID_TCI                  17
+#define IFH_WID_QOS_CLASS            3
+#define IFH_WID_CPUQ                 8
+#define IFH_WID_LEARN_FLAGS          2
+#define IFH_WID_SFLOW_ID             4
+#define IFH_WID_ACL_HIT              1
+#define IFH_WID_ACL_IDX              6
+#define IFH_WID_ISDX                 8
+#define IFH_WID_DSTS                 9
+#define IFH_WID_FLOOD                2
+#define IFH_WID_SEQ_OP               2
+#define IFH_WID_IPV                  3
+#define IFH_WID_AFI                  1
+#define IFH_WID_AGED                 2
+#define IFH_WID_RTP_ID               10
+#define IFH_WID_RTP_SUBID            1
+#define IFH_WID_PN_DATA_STATUS       8
+#define IFH_WID_PN_TRANSF_STATUS_ZERO 1
+#define IFH_WID_PN_CC                16
+
+#endif /* __LAN966X_IFH_H__ */