octeontx2-af: cn10k: mcs: Handle MCS block interrupts

Hardware triggers an interrupt for events like PN wrap to zero,
PN crosses set threshold. This interrupt is received
by the MCS_AF. MCS AF then finds the PF/VF to which SA is mapped
and notifies them using mcs_intr_notify mbox message.

PF/VF using mcs_intr_cfg mbox can configure the list
of interrupts for which they want to receive the
notification from AF.

Signed-off-by: Geetha sowjanya <[email protected]>
Signed-off-by: Vamsi Attunuru <[email protected]>
Signed-off-by: Sunil Goutham <[email protected]>
Signed-off-by: Subbaraya Sundeep <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Geetha sowjanya

drivers/net/ethernet/marvell/octeontx2/af/mbox.h

@@ -326,6 +326,7 @@ M(MCS_GET_SA_STATS,	0xa00f, mcs_get_sa_stats, mcs_stats_req, mcs_sa_stats)	\
 M(MCS_GET_PORT_STATS,	0xa010, mcs_get_port_stats, mcs_stats_req,		\
 				mcs_port_stats)					\
 M(MCS_CLEAR_STATS,	0xa011,	mcs_clear_stats, mcs_clear_stats, msg_rsp)	\
+M(MCS_INTR_CFG,		0xa012, mcs_intr_cfg, mcs_intr_cfg, msg_rsp)		\
 M(MCS_SET_LMAC_MODE,	0xa013, mcs_set_lmac_mode, mcs_set_lmac_mode, msg_rsp)	\
 M(MCS_SET_PN_THRESHOLD, 0xa014, mcs_set_pn_threshold, mcs_set_pn_threshold,	\
 				msg_rsp)					\
@@ -351,11 +352,15 @@ M(CGX_LINK_EVENT,	0xC00, cgx_link_event, cgx_link_info_msg, msg_rsp)
 #define MBOX_UP_CPT_MESSAGES						\
 M(CPT_INST_LMTST,	0xD00, cpt_inst_lmtst, cpt_inst_lmtst_req, msg_rsp)
 
+#define MBOX_UP_MCS_MESSAGES						\
+M(MCS_INTR_NOTIFY,	0xE00, mcs_intr_notify, mcs_intr_info, msg_rsp)
+
 enum {
 #define M(_name, _id, _1, _2, _3) MBOX_MSG_ ## _name = _id,
 MBOX_MESSAGES
 MBOX_UP_CGX_MESSAGES
 MBOX_UP_CPT_MESSAGES
+MBOX_UP_MCS_MESSAGES
 #undef M
 };
 
@@ -2084,4 +2089,37 @@ struct mcs_clear_stats {
 	u8 all;		/* All resources stats mapped to PF are cleared */
 };
 
+struct mcs_intr_cfg {
+	struct mbox_msghdr hdr;
+#define MCS_CPM_RX_SECTAG_V_EQ1_INT		BIT_ULL(0)
+#define MCS_CPM_RX_SECTAG_E_EQ0_C_EQ1_INT	BIT_ULL(1)
+#define MCS_CPM_RX_SECTAG_SL_GTE48_INT		BIT_ULL(2)
+#define MCS_CPM_RX_SECTAG_ES_EQ1_SC_EQ1_INT	BIT_ULL(3)
+#define MCS_CPM_RX_SECTAG_SC_EQ1_SCB_EQ1_INT	BIT_ULL(4)
+#define MCS_CPM_RX_PACKET_XPN_EQ0_INT		BIT_ULL(5)
+#define MCS_CPM_RX_PN_THRESH_REACHED_INT	BIT_ULL(6)
+#define MCS_CPM_TX_PACKET_XPN_EQ0_INT		BIT_ULL(7)
+#define MCS_CPM_TX_PN_THRESH_REACHED_INT	BIT_ULL(8)
+#define MCS_CPM_TX_SA_NOT_VALID_INT		BIT_ULL(9)
+#define MCS_BBE_RX_DFIFO_OVERFLOW_INT		BIT_ULL(10)
+#define MCS_BBE_RX_PLFIFO_OVERFLOW_INT		BIT_ULL(11)
+#define MCS_BBE_TX_DFIFO_OVERFLOW_INT		BIT_ULL(12)
+#define MCS_BBE_TX_PLFIFO_OVERFLOW_INT		BIT_ULL(13)
+#define MCS_PAB_RX_CHAN_OVERFLOW_INT		BIT_ULL(14)
+#define MCS_PAB_TX_CHAN_OVERFLOW_INT		BIT_ULL(15)
+	u64 intr_mask;		/* Interrupt enable mask */
+	u8 mcs_id;
+	u8 lmac_id;
+	u64 rsvd;
+};
+
+struct mcs_intr_info {
+	struct mbox_msghdr hdr;
+	u64 intr_mask;
+	int sa_id;
+	u8 mcs_id;
+	u8 lmac_id;
+	u64 rsvd;
+};
+
 #endif /* MBOX_H */