qedr: Add GSI support

Add support for GSI over light L2. Signed-off-by: Rajesh Borundia <[email protected]> Signed-off-by: Ram Amrani <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
cail · Oct 14, 2016 · 0488677 · 0488677
1 parent 1d1424c
commit 0488677
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Showing 7 changed files with 706 additions and 1 deletion.
diff --git a/drivers/infiniband/hw/qedr/Makefile b/drivers/infiniband/hw/qedr/Makefile
@@ -1,3 +1,3 @@
 obj-$(CONFIG_INFINIBAND_QEDR) := qedr.o
 
-qedr-y := main.o verbs.o
+qedr-y := main.o verbs.o qedr_cm.o
diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c
@@ -138,6 +138,9 @@ static int qedr_register_device(struct qedr_dev *dev)
 
 	dev->ibdev.query_pkey = qedr_query_pkey;
 
+	dev->ibdev.create_ah = qedr_create_ah;
+	dev->ibdev.destroy_ah = qedr_destroy_ah;
+
 	dev->ibdev.get_dma_mr = qedr_get_dma_mr;
 	dev->ibdev.dereg_mr = qedr_dereg_mr;
 	dev->ibdev.reg_user_mr = qedr_reg_user_mr;

diff --git a/drivers/infiniband/hw/qedr/qedr.h b/drivers/infiniband/hw/qedr/qedr.h
@@ -55,6 +55,7 @@
 #define QEDR_MSG_RQ   "  RQ"
 #define QEDR_MSG_SQ   "  SQ"
 #define QEDR_MSG_QP   "  QP"
+#define QEDR_MSG_GSI  " GSI"
 
 #define QEDR_CQ_MAGIC_NUMBER   (0x11223344)
 
@@ -148,6 +149,10 @@ struct qedr_dev {
 	u8			num_hwfns;
 	uint			wq_multiplier;
 	u8			gsi_ll2_mac_address[ETH_ALEN];
+	int			gsi_qp_created;
+	struct qedr_cq		*gsi_sqcq;
+	struct qedr_cq		*gsi_rqcq;
+	struct qedr_qp		*gsi_qp;
 };
 
 #define QEDR_MAX_SQ_PBL			(0x8000)
@@ -246,6 +251,9 @@ struct qedr_cq {
 
 	u16 icid;
 
+	/* Lock to protect completion handler */
+	spinlock_t comp_handler_lock;
+
 	/* Lock to protect multiplem CQ's */
 	spinlock_t cq_lock;
 	u8 arm_flags;
@@ -292,6 +300,7 @@ struct qedr_qp_hwq_info {
 	u16 prod;
 	u16 cons;
 	u16 wqe_cons;
+	u16 gsi_cons;
 	u16 max_wr;
 
 	/* DB */
@@ -366,6 +375,7 @@ struct qedr_qp {
 		struct ib_sge sg_list[RDMA_MAX_SGE_PER_RQ_WQE];
 		u8 wqe_size;
 
+		u8 smac[ETH_ALEN];
 		u16 vlan_id;
 		int rc;
 	} *rqe_wr_id;
@@ -473,6 +483,11 @@ static inline struct qedr_qp *get_qedr_qp(struct ib_qp *ibqp)
 	return container_of(ibqp, struct qedr_qp, ibqp);
 }
 
+static inline struct qedr_ah *get_qedr_ah(struct ib_ah *ibah)
+{
+	return container_of(ibah, struct qedr_ah, ibah);
+}
+
 static inline struct qedr_mr *get_qedr_mr(struct ib_mr *ibmr)
 {
 	return container_of(ibmr, struct qedr_mr, ibmr);