IB/uverbs: Move to new headers and make naming consistent

Use macros to make names consistent in ioctl() uAPI:
The ioctl() uAPI works with object-method hierarchy. The method part
also states which handler should be executed when this method is called
from user-space. Therefore, we need to tie method, method's id, method's
handler and the object owning this method together.
Previously, this was done through explicit developer chosen names.
This makes grepping the code harder. Changing the method's name,
method's handler and object's name to be automatically generated based
on the ids.

The headers are split in a way so they be included and used by
user-space. One header strictly contains structures that are used
directly by user-space applications, where another header is used for
internal library (i.e. libibverbs) to form the ioctl() commands.
Other header simply contains the required general command structure.

Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/core/uverbs.h

@@ -47,6 +47,9 @@
 #include <rdma/ib_umem.h>
 #include <rdma/ib_user_verbs.h>
 
+#define UVERBS_MODULE_NAME ib_uverbs
+#include <rdma/uverbs_named_ioctl.h>
+
 static inline void
 ib_uverbs_init_udata(struct ib_udata *udata,
 		     const void __user *ibuf,

drivers/infiniband/core/uverbs_cmd.c

@@ -50,7 +50,7 @@
 static struct ib_uverbs_completion_event_file *
 ib_uverbs_lookup_comp_file(int fd, struct ib_ucontext *context)
 {
-	struct ib_uobject *uobj = uobj_get_read(uobj_get_type(comp_channel),
+	struct ib_uobject *uobj = uobj_get_read(UVERBS_OBJECT_COMP_CHANNEL,
 						fd, context);
 	struct ib_uobject_file *uobj_file;
 
@@ -322,7 +322,7 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file,
                    in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
                    out_len - sizeof(resp));
 
-	uobj  = uobj_alloc(uobj_get_type(pd), file->ucontext);
+	uobj  = uobj_alloc(UVERBS_OBJECT_PD, file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
 
@@ -372,7 +372,7 @@ ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	uobj  = uobj_get_write(uobj_get_type(pd), cmd.pd_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_PD, cmd.pd_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -517,7 +517,7 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file,
 		}
 	}
 
-	obj  = (struct ib_uxrcd_object *)uobj_alloc(uobj_get_type(xrcd),
+	obj  = (struct ib_uxrcd_object *)uobj_alloc(UVERBS_OBJECT_XRCD,
 						    file->ucontext);
 	if (IS_ERR(obj)) {
 		ret = PTR_ERR(obj);
@@ -602,7 +602,7 @@ ssize_t ib_uverbs_close_xrcd(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	uobj  = uobj_get_write(uobj_get_type(xrcd), cmd.xrcd_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_XRCD, cmd.xrcd_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -663,11 +663,11 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
 	if (ret)
 		return ret;
 
-	uobj  = uobj_alloc(uobj_get_type(mr), file->ucontext);
+	uobj  = uobj_alloc(UVERBS_OBJECT_MR, file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
 
-	pd = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext);
+	pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, file->ucontext);
 	if (!pd) {
 		ret = -EINVAL;
 		goto err_free;
@@ -758,7 +758,7 @@ ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file,
 	     (cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK)))
 			return -EINVAL;
 
-	uobj  = uobj_get_write(uobj_get_type(mr), cmd.mr_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_MR, cmd.mr_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -772,7 +772,7 @@ ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file,
 	}
 
 	if (cmd.flags & IB_MR_REREG_PD) {
-		pd = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext);
+		pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, file->ucontext);
 		if (!pd) {
 			ret = -EINVAL;
 			goto put_uobjs;
@@ -824,7 +824,7 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	uobj  = uobj_get_write(uobj_get_type(mr), cmd.mr_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_MR, cmd.mr_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -853,11 +853,11 @@ ssize_t ib_uverbs_alloc_mw(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof(cmd)))
 		return -EFAULT;
 
-	uobj  = uobj_alloc(uobj_get_type(mw), file->ucontext);
+	uobj  = uobj_alloc(UVERBS_OBJECT_MW, file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
 
-	pd = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext);
+	pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, file->ucontext);
 	if (!pd) {
 		ret = -EINVAL;
 		goto err_free;
@@ -916,7 +916,7 @@ ssize_t ib_uverbs_dealloc_mw(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof(cmd)))
 		return -EFAULT;
 
-	uobj  = uobj_get_write(uobj_get_type(mw), cmd.mw_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_MW, cmd.mw_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -941,7 +941,7 @@ ssize_t ib_uverbs_create_comp_channel(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	uobj = uobj_alloc(uobj_get_type(comp_channel), file->ucontext);
+	uobj = uobj_alloc(UVERBS_OBJECT_COMP_CHANNEL, file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
 
@@ -986,7 +986,7 @@ static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file,
 	if (cmd->comp_vector >= file->device->num_comp_vectors)
 		return ERR_PTR(-EINVAL);
 
-	obj  = (struct ib_ucq_object *)uobj_alloc(uobj_get_type(cq),
+	obj  = (struct ib_ucq_object *)uobj_alloc(UVERBS_OBJECT_CQ,
 						  file->ucontext);
 	if (IS_ERR(obj))
 		return obj;
@@ -1175,7 +1175,7 @@ ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file,
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
 		   out_len - sizeof(resp));
 
-	cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext);
+	cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file->ucontext);
 	if (!cq)
 		return -EINVAL;
 
@@ -1240,7 +1240,7 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext);
+	cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file->ucontext);
 	if (!cq)
 		return -EINVAL;
 
@@ -1287,7 +1287,7 @@ ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext);
+	cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file->ucontext);
 	if (!cq)
 		return -EINVAL;
 
@@ -1314,7 +1314,7 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	uobj  = uobj_get_write(uobj_get_type(cq), cmd.cq_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_CQ, cmd.cq_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -1373,7 +1373,7 @@ static int create_qp(struct ib_uverbs_file *file,
 	if (cmd->qp_type == IB_QPT_RAW_PACKET && !capable(CAP_NET_RAW))
 		return -EPERM;
 
-	obj  = (struct ib_uqp_object *)uobj_alloc(uobj_get_type(qp),
+	obj  = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP,
 						  file->ucontext);
 	if (IS_ERR(obj))
 		return PTR_ERR(obj);
@@ -1384,7 +1384,7 @@ static int create_qp(struct ib_uverbs_file *file,
 	if (cmd_sz >= offsetof(typeof(*cmd), rwq_ind_tbl_handle) +
 		      sizeof(cmd->rwq_ind_tbl_handle) &&
 		      (cmd->comp_mask & IB_UVERBS_CREATE_QP_MASK_IND_TABLE)) {
-		ind_tbl = uobj_get_obj_read(rwq_ind_table,
+		ind_tbl = uobj_get_obj_read(rwq_ind_table, UVERBS_OBJECT_RWQ_IND_TBL,
 					    cmd->rwq_ind_tbl_handle,
 					    file->ucontext);
 		if (!ind_tbl) {
@@ -1411,7 +1411,7 @@ static int create_qp(struct ib_uverbs_file *file,
 		has_sq = false;
 
 	if (cmd->qp_type == IB_QPT_XRC_TGT) {
-		xrcd_uobj = uobj_get_read(uobj_get_type(xrcd), cmd->pd_handle,
+		xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->pd_handle,
 					  file->ucontext);
 
 		if (IS_ERR(xrcd_uobj)) {
@@ -1431,7 +1431,7 @@ static int create_qp(struct ib_uverbs_file *file,
 			cmd->max_recv_sge = 0;
 		} else {
 			if (cmd->is_srq) {
-				srq = uobj_get_obj_read(srq, cmd->srq_handle,
+				srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd->srq_handle,
 							file->ucontext);
 				if (!srq || srq->srq_type == IB_SRQT_XRC) {
 					ret = -EINVAL;
@@ -1441,7 +1441,7 @@ static int create_qp(struct ib_uverbs_file *file,
 
 			if (!ind_tbl) {
 				if (cmd->recv_cq_handle != cmd->send_cq_handle) {
-					rcq = uobj_get_obj_read(cq, cmd->recv_cq_handle,
+					rcq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd->recv_cq_handle,
 								file->ucontext);
 					if (!rcq) {
 						ret = -EINVAL;
@@ -1452,11 +1452,11 @@ static int create_qp(struct ib_uverbs_file *file,
 		}
 
 		if (has_sq)
-			scq = uobj_get_obj_read(cq, cmd->send_cq_handle,
+			scq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd->send_cq_handle,
 						file->ucontext);
 		if (!ind_tbl)
 			rcq = rcq ?: scq;
-		pd  = uobj_get_obj_read(pd, cmd->pd_handle, file->ucontext);
+		pd  = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle, file->ucontext);
 		if (!pd || (!scq && has_sq)) {
 			ret = -EINVAL;
 			goto err_put;
@@ -1753,12 +1753,12 @@ ssize_t ib_uverbs_open_qp(struct ib_uverbs_file *file,
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
 		   out_len - sizeof(resp));
 
-	obj  = (struct ib_uqp_object *)uobj_alloc(uobj_get_type(qp),
+	obj  = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP,
 						  file->ucontext);
 	if (IS_ERR(obj))
 		return PTR_ERR(obj);
 
-	xrcd_uobj = uobj_get_read(uobj_get_type(xrcd), cmd.pd_handle,
+	xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd.pd_handle,
 				  file->ucontext);
 	if (IS_ERR(xrcd_uobj)) {
 		ret = -EINVAL;
@@ -1861,7 +1861,7 @@ ssize_t ib_uverbs_query_qp(struct ib_uverbs_file *file,
 		goto out;
 	}
 
-	qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext);
+	qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file->ucontext);
 	if (!qp) {
 		ret = -EINVAL;
 		goto out;
@@ -1966,7 +1966,7 @@ static int modify_qp(struct ib_uverbs_file *file,
 	if (!attr)
 		return -ENOMEM;
 
-	qp = uobj_get_obj_read(qp, cmd->base.qp_handle, file->ucontext);
+	qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd->base.qp_handle, file->ucontext);
 	if (!qp) {
 		ret = -EINVAL;
 		goto out;
@@ -2121,7 +2121,7 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file,
 
 	memset(&resp, 0, sizeof resp);
 
-	uobj  = uobj_get_write(uobj_get_type(qp), cmd.qp_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_QP, cmd.qp_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -2187,7 +2187,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
 	if (!user_wr)
 		return -ENOMEM;
 
-	qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext);
+	qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file->ucontext);
 	if (!qp)
 		goto out;
 
@@ -2223,7 +2223,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
 				goto out_put;
 			}
 
-			ud->ah = uobj_get_obj_read(ah, user_wr->wr.ud.ah,
+			ud->ah = uobj_get_obj_read(ah, UVERBS_OBJECT_AH, user_wr->wr.ud.ah,
 						   file->ucontext);
 			if (!ud->ah) {
 				kfree(ud);
@@ -2458,7 +2458,7 @@ ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file,
 	if (IS_ERR(wr))
 		return PTR_ERR(wr);
 
-	qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext);
+	qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file->ucontext);
 	if (!qp)
 		goto out;
 
@@ -2507,7 +2507,7 @@ ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file,
 	if (IS_ERR(wr))
 		return PTR_ERR(wr);
 
-	srq = uobj_get_obj_read(srq, cmd.srq_handle, file->ucontext);
+	srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, file->ucontext);
 	if (!srq)
 		goto out;
 
@@ -2564,11 +2564,11 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file,
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
 		   out_len - sizeof(resp));
 
-	uobj  = uobj_alloc(uobj_get_type(ah), file->ucontext);
+	uobj  = uobj_alloc(UVERBS_OBJECT_AH, file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
 
-	pd = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext);
+	pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, file->ucontext);
 	if (!pd) {
 		ret = -EINVAL;
 		goto err;
@@ -2636,7 +2636,7 @@ ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	uobj  = uobj_get_write(uobj_get_type(ah), cmd.ah_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_AH, cmd.ah_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -2659,7 +2659,7 @@ ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext);
+	qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file->ucontext);
 	if (!qp)
 		return -EINVAL;
 
@@ -2710,7 +2710,7 @@ ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext);
+	qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file->ucontext);
 	if (!qp)
 		return -EINVAL;
 
@@ -2934,18 +2934,18 @@ int ib_uverbs_ex_create_wq(struct ib_uverbs_file *file,
 	if (cmd.comp_mask)
 		return -EOPNOTSUPP;
 
-	obj  = (struct ib_uwq_object *)uobj_alloc(uobj_get_type(wq),
+	obj  = (struct ib_uwq_object *)uobj_alloc(UVERBS_OBJECT_WQ,
 						  file->ucontext);
 	if (IS_ERR(obj))
 		return PTR_ERR(obj);
 
-	pd  = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext);
+	pd  = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, file->ucontext);
 	if (!pd) {
 		err = -EINVAL;
 		goto err_uobj;
 	}
 
-	cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext);
+	cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file->ucontext);
 	if (!cq) {
 		err = -EINVAL;
 		goto err_put_pd;
@@ -3049,7 +3049,7 @@ int ib_uverbs_ex_destroy_wq(struct ib_uverbs_file *file,
 		return -EOPNOTSUPP;
 
 	resp.response_length = required_resp_len;
-	uobj  = uobj_get_write(uobj_get_type(wq), cmd.wq_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_WQ, cmd.wq_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -3100,7 +3100,7 @@ int ib_uverbs_ex_modify_wq(struct ib_uverbs_file *file,
 	if (cmd.attr_mask > (IB_WQ_STATE | IB_WQ_CUR_STATE | IB_WQ_FLAGS))
 		return -EINVAL;
 
-	wq = uobj_get_obj_read(wq, cmd.wq_handle, file->ucontext);
+	wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ, cmd.wq_handle, file->ucontext);
 	if (!wq)
 		return -EINVAL;
 
@@ -3194,7 +3194,7 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file,
 
 	for (num_read_wqs = 0; num_read_wqs < num_wq_handles;
 			num_read_wqs++) {
-		wq = uobj_get_obj_read(wq, wqs_handles[num_read_wqs],
+		wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ, wqs_handles[num_read_wqs],
 				       file->ucontext);
 		if (!wq) {
 			err = -EINVAL;
@@ -3204,7 +3204,7 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file,
 		wqs[num_read_wqs] = wq;
 	}
 
-	uobj  = uobj_alloc(uobj_get_type(rwq_ind_table), file->ucontext);
+	uobj  = uobj_alloc(UVERBS_OBJECT_RWQ_IND_TBL, file->ucontext);
 	if (IS_ERR(uobj)) {
 		err = PTR_ERR(uobj);
 		goto put_wqs;
@@ -3291,7 +3291,7 @@ int ib_uverbs_ex_destroy_rwq_ind_table(struct ib_uverbs_file *file,
 	if (cmd.comp_mask)
 		return -EOPNOTSUPP;
 
-	uobj  = uobj_get_write(uobj_get_type(rwq_ind_table), cmd.ind_tbl_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_RWQ_IND_TBL, cmd.ind_tbl_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -3370,13 +3370,13 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file,
 		kern_flow_attr = &cmd.flow_attr;
 	}
 
-	uobj  = uobj_alloc(uobj_get_type(flow), file->ucontext);
+	uobj  = uobj_alloc(UVERBS_OBJECT_FLOW, file->ucontext);
 	if (IS_ERR(uobj)) {
 		err = PTR_ERR(uobj);
 		goto err_free_attr;
 	}
 
-	qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext);
+	qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file->ucontext);
 	if (!qp) {
 		err = -EINVAL;
 		goto err_uobj;
@@ -3472,7 +3472,7 @@ int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file,
 	if (cmd.comp_mask)
 		return -EINVAL;
 
-	uobj  = uobj_get_write(uobj_get_type(flow), cmd.flow_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_FLOW, cmd.flow_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -3494,7 +3494,7 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
 	struct ib_srq_init_attr          attr;
 	int ret;
 
-	obj  = (struct ib_usrq_object *)uobj_alloc(uobj_get_type(srq),
+	obj  = (struct ib_usrq_object *)uobj_alloc(UVERBS_OBJECT_SRQ,
 						   file->ucontext);
 	if (IS_ERR(obj))
 		return PTR_ERR(obj);
@@ -3503,7 +3503,7 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
 		attr.ext.tag_matching.max_num_tags = cmd->max_num_tags;
 
 	if (cmd->srq_type == IB_SRQT_XRC) {
-		xrcd_uobj = uobj_get_read(uobj_get_type(xrcd), cmd->xrcd_handle,
+		xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->xrcd_handle,
 					  file->ucontext);
 		if (IS_ERR(xrcd_uobj)) {
 			ret = -EINVAL;
@@ -3521,7 +3521,7 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
 	}
 
 	if (ib_srq_has_cq(cmd->srq_type)) {
-		attr.ext.cq  = uobj_get_obj_read(cq, cmd->cq_handle,
+		attr.ext.cq  = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd->cq_handle,
 						 file->ucontext);
 		if (!attr.ext.cq) {
 			ret = -EINVAL;
@@ -3529,7 +3529,7 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
 		}
 	}
 
-	pd  = uobj_get_obj_read(pd, cmd->pd_handle, file->ucontext);
+	pd  = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle, file->ucontext);
 	if (!pd) {
 		ret = -EINVAL;
 		goto err_put_cq;
@@ -3701,7 +3701,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd,
 		   out_len);
 
-	srq = uobj_get_obj_read(srq, cmd.srq_handle, file->ucontext);
+	srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, file->ucontext);
 	if (!srq)
 		return -EINVAL;
 
@@ -3732,7 +3732,7 @@ ssize_t ib_uverbs_query_srq(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	srq = uobj_get_obj_read(srq, cmd.srq_handle, file->ucontext);
+	srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, file->ucontext);
 	if (!srq)
 		return -EINVAL;
 
@@ -3769,7 +3769,7 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file,
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
-	uobj  = uobj_get_write(uobj_get_type(srq), cmd.srq_handle,
+	uobj  = uobj_get_write(UVERBS_OBJECT_SRQ, cmd.srq_handle,
 			       file->ucontext);
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
@@ -3942,7 +3942,7 @@ int ib_uverbs_ex_modify_cq(struct ib_uverbs_file *file,
 	if (cmd.attr_mask > IB_CQ_MODERATE)
 		return -EOPNOTSUPP;
 
-	cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext);
+	cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file->ucontext);
 	if (!cq)
 		return -EINVAL;
 

drivers/infiniband/core/uverbs_std_types.c

@@ -216,9 +216,9 @@ static int uverbs_hot_unplug_completion_event_file(struct ib_uobject_file *uobj_
  * spec.
  */
 static const struct uverbs_attr_def uverbs_uhw_compat_in =
-	UVERBS_ATTR_PTR_IN_SZ(UVERBS_UHW_IN, 0, UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ));
+	UVERBS_ATTR_PTR_IN_SZ(UVERBS_ATTR_UHW_IN, 0, UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ));
 static const struct uverbs_attr_def uverbs_uhw_compat_out =
-	UVERBS_ATTR_PTR_OUT_SZ(UVERBS_UHW_OUT, 0, UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ));
+	UVERBS_ATTR_PTR_OUT_SZ(UVERBS_ATTR_UHW_OUT, 0, UA_FLAGS(UVERBS_ATTR_SPEC_F_MIN_SZ));
 
 static void create_udata(struct uverbs_attr_bundle *ctx,
 			 struct ib_udata *udata)
@@ -229,9 +229,9 @@ static void create_udata(struct uverbs_attr_bundle *ctx,
 	 * Assume attr == 0 is input and attr == 1 is output.
 	 */
 	const struct uverbs_attr *uhw_in =
-		uverbs_attr_get(ctx, UVERBS_UHW_IN);
+		uverbs_attr_get(ctx, UVERBS_ATTR_UHW_IN);
 	const struct uverbs_attr *uhw_out =
-		uverbs_attr_get(ctx, UVERBS_UHW_OUT);
+		uverbs_attr_get(ctx, UVERBS_ATTR_UHW_OUT);
 
 	if (!IS_ERR(uhw_in)) {
 		udata->inlen = uhw_in->ptr_attr.len;
@@ -253,9 +253,9 @@ static void create_udata(struct uverbs_attr_bundle *ctx,
 	}
 }
 
-static int uverbs_create_cq_handler(struct ib_device *ib_dev,
-				    struct ib_uverbs_file *file,
-				    struct uverbs_attr_bundle *attrs)
+static int UVERBS_HANDLER(UVERBS_METHOD_CQ_CREATE)(struct ib_device *ib_dev,
+						   struct ib_uverbs_file *file,
+						   struct uverbs_attr_bundle *attrs)
 {
 	struct ib_ucontext *ucontext = file->ucontext;
 	struct ib_ucq_object           *obj;
@@ -271,19 +271,23 @@ static int uverbs_create_cq_handler(struct ib_device *ib_dev,
 	if (!(ib_dev->uverbs_cmd_mask & 1ULL << IB_USER_VERBS_CMD_CREATE_CQ))
 		return -EOPNOTSUPP;
 
-	ret = uverbs_copy_from(&attr.comp_vector, attrs, CREATE_CQ_COMP_VECTOR);
+	ret = uverbs_copy_from(&attr.comp_vector, attrs,
+			       UVERBS_ATTR_CREATE_CQ_COMP_VECTOR);
 	if (!ret)
-		ret = uverbs_copy_from(&attr.cqe, attrs, CREATE_CQ_CQE);
+		ret = uverbs_copy_from(&attr.cqe, attrs,
+				       UVERBS_ATTR_CREATE_CQ_CQE);
 	if (!ret)
-		ret = uverbs_copy_from(&user_handle, attrs, CREATE_CQ_USER_HANDLE);
+		ret = uverbs_copy_from(&user_handle, attrs,
+				       UVERBS_ATTR_CREATE_CQ_USER_HANDLE);
 	if (ret)
 		return ret;
 
 	/* Optional param, if it doesn't exist, we get -ENOENT and skip it */
-	if (uverbs_copy_from(&attr.flags, attrs, CREATE_CQ_FLAGS) == -EFAULT)
+	if (uverbs_copy_from(&attr.flags, attrs,
+			     UVERBS_ATTR_CREATE_CQ_FLAGS) == -EFAULT)
 		return -EFAULT;
 
-	ev_file_attr = uverbs_attr_get(attrs, CREATE_CQ_COMP_CHANNEL);
+	ev_file_attr = uverbs_attr_get(attrs, UVERBS_ATTR_CREATE_CQ_COMP_CHANNEL);
 	if (!IS_ERR(ev_file_attr)) {
 		ev_file_uobj = ev_file_attr->obj_attr.uobject;
 
@@ -298,7 +302,8 @@ static int uverbs_create_cq_handler(struct ib_device *ib_dev,
 		goto err_event_file;
 	}
 
-	obj = container_of(uverbs_attr_get(attrs, CREATE_CQ_HANDLE)->obj_attr.uobject,
+	obj = container_of(uverbs_attr_get(attrs,
+					   UVERBS_ATTR_CREATE_CQ_HANDLE)->obj_attr.uobject,
 			   typeof(*obj), uobject);
 	obj->uverbs_file	   = ucontext->ufile;
 	obj->comp_events_reported  = 0;
@@ -326,7 +331,7 @@ static int uverbs_create_cq_handler(struct ib_device *ib_dev,
 	cq->res.type = RDMA_RESTRACK_CQ;
 	rdma_restrack_add(&cq->res);
 
-	ret = uverbs_copy_to(attrs, CREATE_CQ_RESP_CQE, &cq->cqe,
+	ret = uverbs_copy_to(attrs, UVERBS_ATTR_CREATE_CQ_RESP_CQE, &cq->cqe,
 			     sizeof(cq->cqe));
 	if (ret)
 		goto err_cq;
@@ -341,30 +346,31 @@ err_event_file:
 	return ret;
 };
 
-static DECLARE_UVERBS_METHOD(
-	uverbs_method_cq_create, UVERBS_CQ_CREATE, uverbs_create_cq_handler,
-	&UVERBS_ATTR_IDR(CREATE_CQ_HANDLE, UVERBS_OBJECT_CQ, UVERBS_ACCESS_NEW,
+static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_CQ_CREATE,
+	&UVERBS_ATTR_IDR(UVERBS_ATTR_CREATE_CQ_HANDLE, UVERBS_OBJECT_CQ,
+			 UVERBS_ACCESS_NEW,
 			 UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
-	&UVERBS_ATTR_PTR_IN(CREATE_CQ_CQE, u32,
+	&UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_CQ_CQE, u32,
 			    UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
-	&UVERBS_ATTR_PTR_IN(CREATE_CQ_USER_HANDLE, u64,
+	&UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_CQ_USER_HANDLE, u64,
 			    UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
-	&UVERBS_ATTR_FD(CREATE_CQ_COMP_CHANNEL, UVERBS_OBJECT_COMP_CHANNEL,
+	&UVERBS_ATTR_FD(UVERBS_ATTR_CREATE_CQ_COMP_CHANNEL,
+			UVERBS_OBJECT_COMP_CHANNEL,
 			UVERBS_ACCESS_READ),
-	&UVERBS_ATTR_PTR_IN(CREATE_CQ_COMP_VECTOR, u32,
+	&UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_CQ_COMP_VECTOR, u32,
 			    UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
-	&UVERBS_ATTR_PTR_IN(CREATE_CQ_FLAGS, u32),
-	&UVERBS_ATTR_PTR_OUT(CREATE_CQ_RESP_CQE, u32,
+	&UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_CQ_FLAGS, u32),
+	&UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_CREATE_CQ_RESP_CQE, u32,
 			     UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
 	&uverbs_uhw_compat_in, &uverbs_uhw_compat_out);
 
-static int uverbs_destroy_cq_handler(struct ib_device *ib_dev,
-				     struct ib_uverbs_file *file,
-				     struct uverbs_attr_bundle *attrs)
+static int UVERBS_HANDLER(UVERBS_METHOD_CQ_DESTROY)(struct ib_device *ib_dev,
+						    struct ib_uverbs_file *file,
+						    struct uverbs_attr_bundle *attrs)
 {
 	struct ib_uverbs_destroy_cq_resp resp;
 	struct ib_uobject *uobj =
-		uverbs_attr_get(attrs, DESTROY_CQ_HANDLE)->obj_attr.uobject;
+		uverbs_attr_get(attrs, UVERBS_ATTR_DESTROY_CQ_HANDLE)->obj_attr.uobject;
 	struct ib_ucq_object *obj = container_of(uobj, struct ib_ucq_object,
 						 uobject);
 	int ret;
@@ -379,81 +385,81 @@ static int uverbs_destroy_cq_handler(struct ib_device *ib_dev,
 	resp.comp_events_reported  = obj->comp_events_reported;
 	resp.async_events_reported = obj->async_events_reported;
 
-	return uverbs_copy_to(attrs, DESTROY_CQ_RESP, &resp, sizeof(resp));
+	return uverbs_copy_to(attrs, UVERBS_ATTR_DESTROY_CQ_RESP, &resp,
+			      sizeof(resp));
 }
 
-static DECLARE_UVERBS_METHOD(
-	uverbs_method_cq_destroy, UVERBS_CQ_DESTROY, uverbs_destroy_cq_handler,
-	&UVERBS_ATTR_IDR(DESTROY_CQ_HANDLE, UVERBS_OBJECT_CQ,
+static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_CQ_DESTROY,
+	&UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_CQ_HANDLE, UVERBS_OBJECT_CQ,
 			 UVERBS_ACCESS_DESTROY,
 			 UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
-	&UVERBS_ATTR_PTR_OUT(DESTROY_CQ_RESP, struct ib_uverbs_destroy_cq_resp,
+	&UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_DESTROY_CQ_RESP,
+			     struct ib_uverbs_destroy_cq_resp,
 			     UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_comp_channel,
-		      UVERBS_OBJECT_COMP_CHANNEL,
-		      &UVERBS_TYPE_ALLOC_FD(0,
-					      sizeof(struct ib_uverbs_completion_event_file),
-					      uverbs_hot_unplug_completion_event_file,
-					      &uverbs_event_fops,
-					      "[infinibandevent]", O_RDONLY));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_COMP_CHANNEL,
+			    &UVERBS_TYPE_ALLOC_FD(0,
+						  sizeof(struct ib_uverbs_completion_event_file),
+						  uverbs_hot_unplug_completion_event_file,
+						  &uverbs_event_fops,
+						  "[infinibandevent]", O_RDONLY));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_cq, UVERBS_OBJECT_CQ,
-		      &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_ucq_object), 0,
-						  uverbs_free_cq),
-		      &uverbs_method_cq_create,
-		      &uverbs_method_cq_destroy);
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_CQ,
+			    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_ucq_object), 0,
+						      uverbs_free_cq),
+			    &UVERBS_METHOD(UVERBS_METHOD_CQ_CREATE),
+			    &UVERBS_METHOD(UVERBS_METHOD_CQ_DESTROY)
+			   );
 
-DECLARE_UVERBS_OBJECT(uverbs_object_qp, UVERBS_OBJECT_QP,
-		      &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uqp_object), 0,
-						  uverbs_free_qp));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_QP,
+			    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uqp_object), 0,
+						      uverbs_free_qp));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_mw, UVERBS_OBJECT_MW,
-		      &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_mw));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_MW,
+			    &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_mw));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_mr, UVERBS_OBJECT_MR,
-		      /* 1 is used in order to free the MR after all the MWs */
-		      &UVERBS_TYPE_ALLOC_IDR(1, uverbs_free_mr));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_MR,
+			    /* 1 is used in order to free the MR after all the MWs */
+			    &UVERBS_TYPE_ALLOC_IDR(1, uverbs_free_mr));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_srq, UVERBS_OBJECT_SRQ,
-		      &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object), 0,
-						  uverbs_free_srq));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_SRQ,
+			    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object), 0,
+						      uverbs_free_srq));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_ah, UVERBS_OBJECT_AH,
-		      &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_ah));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_AH,
+			    &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_ah));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_flow, UVERBS_OBJECT_FLOW,
-		      &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_flow));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_FLOW,
+			    &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_flow));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_wq, UVERBS_OBJECT_WQ,
-		      &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uwq_object), 0,
-						  uverbs_free_wq));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_WQ,
+			    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uwq_object), 0,
+						      uverbs_free_wq));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_rwq_ind_table,
-		      UVERBS_OBJECT_RWQ_IND_TBL,
-		      &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_rwq_ind_tbl));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_RWQ_IND_TBL,
+			    &UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_rwq_ind_tbl));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_xrcd, UVERBS_OBJECT_XRCD,
-		      &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uxrcd_object), 0,
-						  uverbs_free_xrcd));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_XRCD,
+			    &UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uxrcd_object), 0,
+						      uverbs_free_xrcd));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_pd, UVERBS_OBJECT_PD,
-		      /* 2 is used in order to free the PD after MRs */
-		      &UVERBS_TYPE_ALLOC_IDR(2, uverbs_free_pd));
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_PD,
+			    /* 2 is used in order to free the PD after MRs */
+			    &UVERBS_TYPE_ALLOC_IDR(2, uverbs_free_pd));
 
-DECLARE_UVERBS_OBJECT(uverbs_object_device, UVERBS_OBJECT_DEVICE, NULL);
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_DEVICE, NULL);
 
 DECLARE_UVERBS_OBJECT_TREE(uverbs_default_objects,
-			   &uverbs_object_device,
-			   &uverbs_object_pd,
-			   &uverbs_object_mr,
-			   &uverbs_object_comp_channel,
-			   &uverbs_object_cq,
-			   &uverbs_object_qp,
-			   &uverbs_object_ah,
-			   &uverbs_object_mw,
-			   &uverbs_object_srq,
-			   &uverbs_object_flow,
-			   &uverbs_object_wq,
-			   &uverbs_object_rwq_ind_table,
-			   &uverbs_object_xrcd);
+			   &UVERBS_OBJECT(UVERBS_OBJECT_DEVICE),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_PD),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_MR),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_COMP_CHANNEL),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_CQ),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_QP),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_AH),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_MW),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_SRQ),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_FLOW),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_WQ),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_RWQ_IND_TBL),
+			   &UVERBS_OBJECT(UVERBS_OBJECT_XRCD));

include/rdma/uverbs_ioctl.h

@@ -37,6 +37,7 @@
 #include <linux/uaccess.h>
 #include <rdma/rdma_user_ioctl.h>
 #include <rdma/ib_user_ioctl_verbs.h>
+#include <rdma/ib_user_ioctl_cmds.h>
 
 /*
  * =======================================

include/rdma/uverbs_named_ioctl.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2018, Mellanox Technologies inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _UVERBS_NAMED_IOCTL_
+#define _UVERBS_NAMED_IOCTL_
+
+#include <rdma/uverbs_ioctl.h>
+
+#ifndef UVERBS_MODULE_NAME
+#error "Please #define UVERBS_MODULE_NAME before including rdma/uverbs_named_ioctl.h"
+#endif
+
+#define _UVERBS_PASTE(x, y)	x ## y
+#define _UVERBS_NAME(x, y)	_UVERBS_PASTE(x, y)
+#define UVERBS_METHOD(id)	_UVERBS_NAME(UVERBS_MODULE_NAME, _method_##id)
+#define UVERBS_HANDLER(id)	_UVERBS_NAME(UVERBS_MODULE_NAME, _handler_##id)
+
+#define DECLARE_UVERBS_NAMED_METHOD(id, ...)	\
+	DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, UVERBS_HANDLER(id), ##__VA_ARGS__)
+
+#define DECLARE_UVERBS_NAMED_METHOD_WITH_HANDLER(id, handler, ...)	\
+	DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, handler, ##__VA_ARGS__)
+
+#define DECLARE_UVERBS_NAMED_METHOD_NO_OVERRIDE(id, handler, ...)	\
+	DECLARE_UVERBS_METHOD(UVERBS_METHOD(id), id, NULL, ##__VA_ARGS__)
+
+#define DECLARE_UVERBS_NAMED_OBJECT(id, ...)	\
+	DECLARE_UVERBS_OBJECT(UVERBS_OBJECT(id), id, ##__VA_ARGS__)
+
+#endif

include/rdma/uverbs_std_types.h

@@ -38,19 +38,22 @@
 #include <rdma/ib_user_ioctl_verbs.h>
 
 #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
-extern const struct uverbs_object_def uverbs_object_comp_channel;
-extern const struct uverbs_object_def uverbs_object_cq;
-extern const struct uverbs_object_def uverbs_object_qp;
-extern const struct uverbs_object_def uverbs_object_rwq_ind_table;
-extern const struct uverbs_object_def uverbs_object_wq;
-extern const struct uverbs_object_def uverbs_object_srq;
-extern const struct uverbs_object_def uverbs_object_ah;
-extern const struct uverbs_object_def uverbs_object_flow;
-extern const struct uverbs_object_def uverbs_object_mr;
-extern const struct uverbs_object_def uverbs_object_mw;
-extern const struct uverbs_object_def uverbs_object_pd;
-extern const struct uverbs_object_def uverbs_object_xrcd;
-extern const struct uverbs_object_def uverbs_object_device;
+
+#define UVERBS_OBJECT(id)	uverbs_object_##id
+
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_DEVICE);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_PD);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_MR);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_COMP_CHANNEL);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_CQ);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_QP);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_AH);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_MW);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_SRQ);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_FLOW);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_WQ);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_RWQ_IND_TBL);
+extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_XRCD);
 
 extern const struct uverbs_object_tree_def uverbs_default_objects;
 static inline const struct uverbs_object_tree_def *uverbs_default_get_objects(void)
@@ -72,22 +75,22 @@ static inline struct ib_uobject *__uobj_get(const struct uverbs_obj_type *type,
 	return rdma_lookup_get_uobject(type, ucontext, id, write);
 }
 
-#define uobj_get_type(_object) uverbs_object_##_object.type_attrs
+#define uobj_get_type(_object) UVERBS_OBJECT(_object).type_attrs
 
 #define uobj_get_read(_type, _id, _ucontext)				\
-	 __uobj_get(_type, false, _ucontext, _id)
+	 __uobj_get(uobj_get_type(_type), false, _ucontext, _id)
 
-#define uobj_get_obj_read(_object, _id, _ucontext)			\
+#define uobj_get_obj_read(_object, _type, _id, _ucontext)		\
 ({									\
 	struct ib_uobject *__uobj =					\
-		__uobj_get(uverbs_object_##_object.type_attrs,		\
+		__uobj_get(uobj_get_type(_type),			\
 			   false, _ucontext, _id);			\
 									\
 	(struct ib_##_object *)(IS_ERR(__uobj) ? NULL : __uobj->object);\
 })
 
 #define uobj_get_write(_type, _id, _ucontext)				\
-	 __uobj_get(_type, true, _ucontext, _id)
+	 __uobj_get(uobj_get_type(_type), true, _ucontext, _id)
 
 static inline void uobj_put_read(struct ib_uobject *uobj)
 {
@@ -124,7 +127,7 @@ static inline struct ib_uobject *__uobj_alloc(const struct uverbs_obj_type *type
 }
 
 #define uobj_alloc(_type, ucontext)	\
-	__uobj_alloc(_type, ucontext)
+	__uobj_alloc(uobj_get_type(_type), ucontext)
 
 #endif
 

include/uapi/rdma/ib_user_ioctl_cmds.h

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2018, Mellanox Technologies inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef IB_USER_IOCTL_CMDS_H
+#define IB_USER_IOCTL_CMDS_H
+
+#define UVERBS_ID_NS_MASK 0xF000
+#define UVERBS_ID_NS_SHIFT 12
+
+#define UVERBS_UDATA_DRIVER_DATA_NS	1
+#define UVERBS_UDATA_DRIVER_DATA_FLAG	(1UL << UVERBS_ID_NS_SHIFT)
+
+enum uverbs_default_objects {
+	UVERBS_OBJECT_DEVICE, /* No instances of DEVICE are allowed */
+	UVERBS_OBJECT_PD,
+	UVERBS_OBJECT_COMP_CHANNEL,
+	UVERBS_OBJECT_CQ,
+	UVERBS_OBJECT_QP,
+	UVERBS_OBJECT_SRQ,
+	UVERBS_OBJECT_AH,
+	UVERBS_OBJECT_MR,
+	UVERBS_OBJECT_MW,
+	UVERBS_OBJECT_FLOW,
+	UVERBS_OBJECT_XRCD,
+	UVERBS_OBJECT_RWQ_IND_TBL,
+	UVERBS_OBJECT_WQ,
+};
+
+enum {
+	UVERBS_ATTR_UHW_IN = UVERBS_UDATA_DRIVER_DATA_FLAG,
+	UVERBS_ATTR_UHW_OUT,
+};
+
+enum uverbs_attrs_create_cq_cmd_attr_ids {
+	UVERBS_ATTR_CREATE_CQ_HANDLE,
+	UVERBS_ATTR_CREATE_CQ_CQE,
+	UVERBS_ATTR_CREATE_CQ_USER_HANDLE,
+	UVERBS_ATTR_CREATE_CQ_COMP_CHANNEL,
+	UVERBS_ATTR_CREATE_CQ_COMP_VECTOR,
+	UVERBS_ATTR_CREATE_CQ_FLAGS,
+	UVERBS_ATTR_CREATE_CQ_RESP_CQE,
+};
+
+enum uverbs_attrs_destroy_cq_cmd_attr_ids {
+	UVERBS_ATTR_DESTROY_CQ_HANDLE,
+	UVERBS_ATTR_DESTROY_CQ_RESP,
+};
+
+enum uverbs_methods_cq {
+	UVERBS_METHOD_CQ_CREATE,
+	UVERBS_METHOD_CQ_DESTROY,
+};
+
+#endif

include/uapi/rdma/ib_user_ioctl_verbs.h

@@ -1,5 +1,6 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
- * Copyright (c) 2017, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2017-2018, Mellanox Technologies inc.  All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -33,52 +34,10 @@
 #ifndef IB_USER_IOCTL_VERBS_H
 #define IB_USER_IOCTL_VERBS_H
 
-#include <rdma/rdma_user_ioctl.h>
-
-#define UVERBS_UDATA_DRIVER_DATA_NS	1
-#define UVERBS_UDATA_DRIVER_DATA_FLAG	(1UL << UVERBS_ID_NS_SHIFT)
-
-enum uverbs_default_objects {
-	UVERBS_OBJECT_DEVICE, /* No instances of DEVICE are allowed */
-	UVERBS_OBJECT_PD,
-	UVERBS_OBJECT_COMP_CHANNEL,
-	UVERBS_OBJECT_CQ,
-	UVERBS_OBJECT_QP,
-	UVERBS_OBJECT_SRQ,
-	UVERBS_OBJECT_AH,
-	UVERBS_OBJECT_MR,
-	UVERBS_OBJECT_MW,
-	UVERBS_OBJECT_FLOW,
-	UVERBS_OBJECT_XRCD,
-	UVERBS_OBJECT_RWQ_IND_TBL,
-	UVERBS_OBJECT_WQ,
-	UVERBS_OBJECT_LAST,
-};
-
-enum {
-	UVERBS_UHW_IN = UVERBS_UDATA_DRIVER_DATA_FLAG,
-	UVERBS_UHW_OUT,
-};
-
-enum uverbs_create_cq_cmd_attr_ids {
-	CREATE_CQ_HANDLE,
-	CREATE_CQ_CQE,
-	CREATE_CQ_USER_HANDLE,
-	CREATE_CQ_COMP_CHANNEL,
-	CREATE_CQ_COMP_VECTOR,
-	CREATE_CQ_FLAGS,
-	CREATE_CQ_RESP_CQE,
-};
-
-enum uverbs_destroy_cq_cmd_attr_ids {
-	DESTROY_CQ_HANDLE,
-	DESTROY_CQ_RESP,
-};
-
-enum uverbs_actions_cq_ops {
-	UVERBS_CQ_CREATE,
-	UVERBS_CQ_DESTROY,
-};
+#include <linux/types.h>
 
+#ifndef RDMA_UAPI_PTR
+#define RDMA_UAPI_PTR(_type, _name)	_type __attribute__((aligned(8))) _name
 #endif
 
+#endif

include/uapi/rdma/rdma_user_ioctl.h

@@ -34,49 +34,13 @@
 #ifndef RDMA_USER_IOCTL_H
 #define RDMA_USER_IOCTL_H
 
-#include <linux/types.h>
-#include <linux/ioctl.h>
 #include <rdma/ib_user_mad.h>
 #include <rdma/hfi/hfi1_ioctl.h>
+#include <rdma/rdma_user_ioctl_cmds.h>
 
-/* Documentation/ioctl/ioctl-number.txt */
-#define RDMA_IOCTL_MAGIC	0x1b
 /* Legacy name, for user space application which already use it */
 #define IB_IOCTL_MAGIC		RDMA_IOCTL_MAGIC
 
-#define RDMA_VERBS_IOCTL \
-	_IOWR(RDMA_IOCTL_MAGIC, 1, struct ib_uverbs_ioctl_hdr)
-
-#define UVERBS_ID_NS_MASK 0xF000
-#define UVERBS_ID_NS_SHIFT 12
-
-enum {
-	/* User input */
-	UVERBS_ATTR_F_MANDATORY = 1U << 0,
-	/*
-	 * Valid output bit should be ignored and considered set in
-	 * mandatory fields. This bit is kernel output.
-	 */
-	UVERBS_ATTR_F_VALID_OUTPUT = 1U << 1,
-};
-
-struct ib_uverbs_attr {
-	__u16 attr_id;		/* command specific type attribute */
-	__u16 len;		/* only for pointers */
-	__u16 flags;		/* combination of UVERBS_ATTR_F_XXXX */
-	__u16 reserved;
-	__aligned_u64 data;	/* ptr to command, inline data or idr/fd */
-};
-
-struct ib_uverbs_ioctl_hdr {
-	__u16 length;
-	__u16 object_id;
-	__u16 method_id;
-	__u16 num_attrs;
-	__aligned_u64 reserved;
-	struct ib_uverbs_attr  attrs[0];
-};
-
 /*
  * General blocks assignments
  * It is closed on purpose do not expose it it user space

include/uapi/rdma/rdma_user_ioctl_cmds.h

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2018, Mellanox Technologies inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef RDMA_USER_IOCTL_CMDS_H
+#define RDMA_USER_IOCTL_CMDS_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/* Documentation/ioctl/ioctl-number.txt */
+#define RDMA_IOCTL_MAGIC	0x1b
+#define RDMA_VERBS_IOCTL \
+	_IOWR(RDMA_IOCTL_MAGIC, 1, struct ib_uverbs_ioctl_hdr)
+
+enum {
+	/* User input */
+	UVERBS_ATTR_F_MANDATORY = 1U << 0,
+	/*
+	 * Valid output bit should be ignored and considered set in
+	 * mandatory fields. This bit is kernel output.
+	 */
+	UVERBS_ATTR_F_VALID_OUTPUT = 1U << 1,
+};
+
+struct ib_uverbs_attr {
+	__u16 attr_id;		/* command specific type attribute */
+	__u16 len;		/* only for pointers */
+	__u16 flags;		/* combination of UVERBS_ATTR_F_XXXX */
+	__u16 reserved;
+	__aligned_u64 data;	/* ptr to command, inline data or idr/fd */
+};
+
+struct ib_uverbs_ioctl_hdr {
+	__u16 length;
+	__u16 object_id;
+	__u16 method_id;
+	__u16 num_attrs;
+	__aligned_u64 reserved;
+	struct ib_uverbs_attr  attrs[0];
+};
+
+#endif