[Infiniband] Add multiport support for Arbel cards

1 files changed, 65 insertions, 1 deletions

diff --git a/src/drivers/infiniband/arbel.h b/src/drivers/infiniband/arbel.h
index 94fa67c1b..68be8248d 100644
--- a/src/drivers/infiniband/arbel.h
+++ b/src/drivers/infiniband/arbel.h
@@ -18,7 +18,7 @@
  */
 
 /* Ports in existence */
-#define ARBEL_NUM_PORTS			1
+#define ARBEL_NUM_PORTS			2
 #define ARBEL_PORT_BASE			1
 
 /* PCI BARs */
@@ -57,6 +57,7 @@
 #define ARBEL_HCR_RST2INIT_QPEE		0x0019
 #define ARBEL_HCR_INIT2RTR_QPEE		0x001a
 #define ARBEL_HCR_RTR2RTS_QPEE		0x001b
+#define ARBEL_HCR_RTS2RTS_QPEE		0x001c
 #define ARBEL_HCR_2RST_QPEE		0x0021
 #define ARBEL_HCR_MAD_IFC		0x0024
 #define ARBEL_HCR_READ_MGM		0x0025
@@ -86,6 +87,14 @@
 #define ARBEL_PAGE_SIZE			4096
 
 #define ARBEL_DB_POST_SND_OFFSET	0x10
+#define ARBEL_DB_EQ_OFFSET(_eqn)	( 0x08 * (_eqn) )
+
+#define ARBEL_QPEE_OPT_PARAM_QKEY	0x00000020UL
+
+#define ARBEL_MAP_EQ			( 0UL << 31 )
+#define ARBEL_UNMAP_EQ			( 1UL << 31 )
+
+#define ARBEL_EV_PORT_STATE_CHANGE	0x09
 
 /*
  * Datatypes that seem to be missing from the autogenerated documentation
@@ -104,6 +113,20 @@ struct arbelprm_scalar_parameter_st {
 	pseudo_bit_t value[0x00020];
 } __attribute__ (( packed ));
 
+struct arbelprm_event_mask_st {
+	pseudo_bit_t reserved0[0x00020];
+/* -------------- */
+	pseudo_bit_t completion[0x00001];
+	pseudo_bit_t reserved1[0x0008];
+	pseudo_bit_t port_state_change[0x00001];
+	pseudo_bit_t reserved2[0x00016];
+} __attribute__ (( packed ));
+
+struct arbelprm_port_state_change_event_st {
+	pseudo_bit_t reserved[0x00020];
+	struct arbelprm_port_state_change_st data;
+} __attribute__ (( packed ));
+
 /*
  * Wrapper structures for hardware datatypes
  *
@@ -115,6 +138,8 @@ struct MLX_DECLARE_STRUCT ( arbelprm_completion_queue_entry );
 struct MLX_DECLARE_STRUCT ( arbelprm_completion_with_error );
 struct MLX_DECLARE_STRUCT ( arbelprm_cq_arm_db_record );
 struct MLX_DECLARE_STRUCT ( arbelprm_cq_ci_db_record );
+struct MLX_DECLARE_STRUCT ( arbelprm_event_mask );
+struct MLX_DECLARE_STRUCT ( arbelprm_event_queue_entry );
 struct MLX_DECLARE_STRUCT ( arbelprm_eqc );
 struct MLX_DECLARE_STRUCT ( arbelprm_hca_command_register );
 struct MLX_DECLARE_STRUCT ( arbelprm_init_hca );
@@ -123,6 +148,7 @@ struct MLX_DECLARE_STRUCT ( arbelprm_mad_ifc );
 struct MLX_DECLARE_STRUCT ( arbelprm_mgm_entry );
 struct MLX_DECLARE_STRUCT ( arbelprm_mgm_hash );
 struct MLX_DECLARE_STRUCT ( arbelprm_mpt );
+struct MLX_DECLARE_STRUCT ( arbelprm_port_state_change_event );
 struct MLX_DECLARE_STRUCT ( arbelprm_qp_db_record );
 struct MLX_DECLARE_STRUCT ( arbelprm_qp_ee_state_transitions );
 struct MLX_DECLARE_STRUCT ( arbelprm_query_dev_lim );
@@ -172,6 +198,11 @@ union arbelprm_completion_entry {
 	struct arbelprm_completion_with_error error;
 } __attribute__ (( packed ));
 
+union arbelprm_event_entry {
+	struct arbelprm_event_queue_entry generic;
+	struct arbelprm_port_state_change_event port_state_change;
+} __attribute__ (( packed ));
+
 union arbelprm_doorbell_record {
 	struct arbelprm_cq_arm_db_record cq_arm;
 	struct arbelprm_cq_ci_db_record cq_ci;
@@ -215,6 +246,8 @@ struct arbel_dev_limits {
 	unsigned int reserved_cqs;
 	/** CQ context entry size */
 	size_t cqc_entry_size;
+	/** Number of reserved EQs */
+	unsigned int reserved_eqs;
 	/** Number of reserved MTTs */
 	unsigned int reserved_mtts;
 	/** MTT entry size */
@@ -304,6 +337,33 @@ struct arbel_completion_queue {
 	size_t cqe_size;
 };
 
+/** Maximum number of allocatable event queues
+ *
+ * This is a policy decision, not a device limit.
+ */
+#define ARBEL_MAX_EQS		64
+
+/** A Arbel event queue */
+struct arbel_event_queue {
+	/** Event queue entries */
+	union arbelprm_event_entry *eqe;
+	/** Size of event queue */
+	size_t eqe_size;
+	/** Event queue number */
+	unsigned long eqn;
+	/** Next event queue entry index */
+	unsigned long next_idx;
+	/** Doorbell register */
+	void *doorbell;
+};
+
+/** Number of event queue entries
+ *
+ * This is a policy decision.
+ */
+#define ARBEL_NUM_EQES		4
+
+
 /** An Arbel resource bitmask */
 typedef uint32_t arbel_bitmask_t;
 
@@ -318,6 +378,8 @@ struct arbel {
 	void *config;
 	/** PCI user Access Region */
 	void *uar;
+	/** Event queue consumer index doorbells */
+	void *eq_ci_doorbells;
 
 	/** Command input mailbox */
 	void *mailbox_in;
@@ -333,6 +395,8 @@ struct arbel {
 	/** ICM area */
 	userptr_t icm;
 
+	/** Event queue */
+	struct arbel_event_queue eq;
 	/** Doorbell records */
 	union arbelprm_doorbell_record *db_rec;
 	/** Reserved LKey