RDMA/rxe: Remove support for SMI QPs from rdma_rxe

Currently the rdma_rxe driver supports SMI type QPs in a few places which
is incorrect. RoCE devices never should support SMI QPs.  This commit
removes SMI QP support from the driver.

Link: https://lore.kernel.org/r/20220407185416.16372-1-rpearsonhpe@gmail.comSigned-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/sw/rxe/rxe_opcode.c

@@ -29,7 +29,6 @@ struct rxe_wr_opcode_info rxe_wr_opcode_info[] = {
 	[IB_WR_SEND]					= {
 		.name	= "IB_WR_SEND",
 		.mask	= {
-			[IB_QPT_SMI]	= WR_INLINE_MASK | WR_SEND_MASK,
 			[IB_QPT_GSI]	= WR_INLINE_MASK | WR_SEND_MASK,
 			[IB_QPT_RC]	= WR_INLINE_MASK | WR_SEND_MASK,
 			[IB_QPT_UC]	= WR_INLINE_MASK | WR_SEND_MASK,
@@ -39,7 +38,6 @@ struct rxe_wr_opcode_info rxe_wr_opcode_info[] = {
 	[IB_WR_SEND_WITH_IMM]				= {
 		.name	= "IB_WR_SEND_WITH_IMM",
 		.mask	= {
-			[IB_QPT_SMI]	= WR_INLINE_MASK | WR_SEND_MASK,
 			[IB_QPT_GSI]	= WR_INLINE_MASK | WR_SEND_MASK,
 			[IB_QPT_RC]	= WR_INLINE_MASK | WR_SEND_MASK,
 			[IB_QPT_UC]	= WR_INLINE_MASK | WR_SEND_MASK,

drivers/infiniband/sw/rxe/rxe_qp.c

@@ -63,7 +63,6 @@ int rxe_qp_chk_init(struct rxe_dev *rxe, struct ib_qp_init_attr *init)
 	int port_num = init->port_num;
 
 	switch (init->qp_type) {
-	case IB_QPT_SMI:
 	case IB_QPT_GSI:
 	case IB_QPT_RC:
 	case IB_QPT_UC:
@@ -81,7 +80,7 @@ int rxe_qp_chk_init(struct rxe_dev *rxe, struct ib_qp_init_attr *init)
 	if (rxe_qp_chk_cap(rxe, cap, !!init->srq))
 		goto err1;
 
-	if (init->qp_type == IB_QPT_SMI || init->qp_type == IB_QPT_GSI) {
+	if (init->qp_type == IB_QPT_GSI) {
 		if (!rdma_is_port_valid(&rxe->ib_dev, port_num)) {
 			pr_warn("invalid port = %d\n", port_num);
 			goto err1;
@@ -89,11 +88,6 @@ int rxe_qp_chk_init(struct rxe_dev *rxe, struct ib_qp_init_attr *init)
 
 		port = &rxe->port;
 
-		if (init->qp_type == IB_QPT_SMI && port->qp_smi_index) {
-			pr_warn("SMI QP exists for port %d\n", port_num);
-			goto err1;
-		}
-
 		if (init->qp_type == IB_QPT_GSI && port->qp_gsi_index) {
 			pr_warn("GSI QP exists for port %d\n", port_num);
 			goto err1;
@@ -167,12 +161,6 @@ static void rxe_qp_init_misc(struct rxe_dev *rxe, struct rxe_qp *qp,
 	port			= &rxe->port;
 
 	switch (init->qp_type) {
-	case IB_QPT_SMI:
-		qp->ibqp.qp_num		= 0;
-		port->qp_smi_index	= qpn;
-		qp->attr.port_num	= init->port_num;
-		break;
-
 	case IB_QPT_GSI:
 		qp->ibqp.qp_num		= 1;
 		port->qp_gsi_index	= qpn;

drivers/infiniband/sw/rxe/rxe_recv.c

@@ -34,7 +34,6 @@ static int check_type_state(struct rxe_dev *rxe, struct rxe_pkt_info *pkt,
 		}
 		break;
 	case IB_QPT_UD:
-	case IB_QPT_SMI:
 	case IB_QPT_GSI:
 		if (unlikely(pkt_type != IB_OPCODE_UD)) {
 			pr_warn_ratelimited("bad qp type\n");

drivers/infiniband/sw/rxe/rxe_req.c

@@ -308,7 +308,6 @@ static int next_opcode(struct rxe_qp *qp, struct rxe_send_wqe *wqe,
 	case IB_QPT_UC:
 		return next_opcode_uc(qp, opcode, fits);
 
-	case IB_QPT_SMI:
 	case IB_QPT_UD:
 	case IB_QPT_GSI:
 		switch (opcode) {

drivers/infiniband/sw/rxe/rxe_resp.c

@@ -277,7 +277,6 @@ static enum resp_states check_op_valid(struct rxe_qp *qp,
 		break;
 
 	case IB_QPT_UD:
-	case IB_QPT_SMI:
 	case IB_QPT_GSI:
 		break;
 
@@ -819,7 +818,6 @@ static enum resp_states execute(struct rxe_qp *qp, struct rxe_pkt_info *pkt)
 
 	if (pkt->mask & RXE_SEND_MASK) {
 		if (qp_type(qp) == IB_QPT_UD ||
-		    qp_type(qp) == IB_QPT_SMI ||
 		    qp_type(qp) == IB_QPT_GSI) {
 			if (skb->protocol == htons(ETH_P_IP)) {
 				memset(&hdr.reserved, 0,

drivers/infiniband/sw/rxe/rxe_verbs.c

@@ -536,7 +536,6 @@ static void init_send_wr(struct rxe_qp *qp, struct rxe_send_wr *wr,
 	wr->send_flags = ibwr->send_flags;
 
 	if (qp_type(qp) == IB_QPT_UD ||
-	    qp_type(qp) == IB_QPT_SMI ||
 	    qp_type(qp) == IB_QPT_GSI) {
 		struct ib_ah *ibah = ud_wr(ibwr)->ah;
 

drivers/infiniband/sw/rxe/rxe_verbs.h

@@ -373,7 +373,6 @@ struct rxe_port {
 	spinlock_t		port_lock; /* guard port */
 	unsigned int		mtu_cap;
 	/* special QPs */
-	u32			qp_smi_index;
 	u32			qp_gsi_index;
 };