modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/infiniband/hw/mlx4/srq.c
..
..
@@ -37,6 +37,7 @@
37
37
 
38
38
 #include "mlx4_ib.h"
39
39
 #include <rdma/mlx4-abi.h>
40
+#include <rdma/uverbs_ioctl.h>
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41
 
41
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 static void *get_wqe(struct mlx4_ib_srq *srq, int n)
42
43
 {
..
..
@@ -68,12 +69,14 @@
68
69
 	}
69
70
 }
70
71
 
71
-struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
72
-				  struct ib_srq_init_attr *init_attr,
73
-				  struct ib_udata *udata)
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+int mlx4_ib_create_srq(struct ib_srq *ib_srq,
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+		       struct ib_srq_init_attr *init_attr,
74
+		       struct ib_udata *udata)
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75
 {
75
-	struct mlx4_ib_dev *dev = to_mdev(pd->device);
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-	struct mlx4_ib_srq *srq;
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+	struct mlx4_ib_dev *dev = to_mdev(ib_srq->device);
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+	struct mlx4_ib_ucontext *ucontext = rdma_udata_to_drv_context(
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+		udata, struct mlx4_ib_ucontext, ibucontext);
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+	struct mlx4_ib_srq *srq = to_msrq(ib_srq);
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80
 	struct mlx4_wqe_srq_next_seg *next;
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81
 	struct mlx4_wqe_data_seg *scatter;
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82
 	u32 cqn;
..
..
@@ -86,11 +89,7 @@
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 	/* Sanity check SRQ size before proceeding */
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 	if (init_attr->attr.max_wr  >= dev->dev->caps.max_srq_wqes ||
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91
 	    init_attr->attr.max_sge >  dev->dev->caps.max_srq_sge)
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-		return ERR_PTR(-EINVAL);
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-
91
-	srq = kmalloc(sizeof *srq, GFP_KERNEL);
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-	if (!srq)
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-		return ERR_PTR(-ENOMEM);
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+		return -EINVAL;
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93
 
95
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 	mutex_init(&srq->mutex);
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95
 	spin_lock_init(&srq->lock);
..
..
@@ -105,23 +104,20 @@
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104
 
106
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 	buf_size = srq->msrq.max * desc_size;
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106
 
108
-	if (pd->uobject) {
107
+	if (udata) {
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108
 		struct mlx4_ib_create_srq ucmd;
110
109
 
111
-		if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
112
-			err = -EFAULT;
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-			goto err_srq;
114
-		}
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+		if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)))
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+			return -EFAULT;
115
112
 
116
-		srq->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr,
117
-					buf_size, 0, 0);
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-		if (IS_ERR(srq->umem)) {
119
-			err = PTR_ERR(srq->umem);
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-			goto err_srq;
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-		}
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+		srq->umem =
114
+			ib_umem_get(ib_srq->device, ucmd.buf_addr, buf_size, 0);
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+		if (IS_ERR(srq->umem))
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+			return PTR_ERR(srq->umem);
122
117
 
123
-		err = mlx4_mtt_init(dev->dev, ib_umem_page_count(srq->umem),
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-				    srq->umem->page_shift, &srq->mtt);
118
+		err = mlx4_mtt_init(
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+			dev->dev, ib_umem_num_dma_blocks(srq->umem, PAGE_SIZE),
120
+			PAGE_SHIFT, &srq->mtt);
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121
 		if (err)
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122
 			goto err_buf;
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123
 
..
..
@@ -129,14 +125,13 @@
129
125
 		if (err)
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126
 			goto err_mtt;
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127
 
132
-		err = mlx4_ib_db_map_user(to_mucontext(pd->uobject->context),
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-					  ucmd.db_addr, &srq->db);
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+		err = mlx4_ib_db_map_user(udata, ucmd.db_addr, &srq->db);
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129
 		if (err)
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130
 			goto err_mtt;
136
131
 	} else {
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132
 		err = mlx4_db_alloc(dev->dev, &srq->db, 0);
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133
 		if (err)
139
-			goto err_srq;
134
+			return err;
140
135
 
141
136
 		*srq->db.db = 0;
142
137
 
..
..
@@ -183,15 +178,15 @@
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178
 	xrcdn = (init_attr->srq_type == IB_SRQT_XRC) ?
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179
 		to_mxrcd(init_attr->ext.xrc.xrcd)->xrcdn :
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180
 		(u16) dev->dev->caps.reserved_xrcds;
186
-	err = mlx4_srq_alloc(dev->dev, to_mpd(pd)->pdn, cqn, xrcdn, &srq->mtt,
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-			     srq->db.dma, &srq->msrq);
181
+	err = mlx4_srq_alloc(dev->dev, to_mpd(ib_srq->pd)->pdn, cqn, xrcdn,
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+			     &srq->mtt, srq->db.dma, &srq->msrq);
188
183
 	if (err)
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184
 		goto err_wrid;
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185
 
191
186
 	srq->msrq.event = mlx4_ib_srq_event;
192
187
 	srq->ibsrq.ext.xrc.srq_num = srq->msrq.srqn;
193
188
 
194
-	if (pd->uobject)
189
+	if (udata)
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190
 		if (ib_copy_to_udata(udata, &srq->msrq.srqn, sizeof (__u32))) {
196
191
 			err = -EFAULT;
197
192
 			goto err_wrid;
..
..
@@ -199,11 +194,11 @@
199
194
 
200
195
 	init_attr->attr.max_wr = srq->msrq.max - 1;
201
196
 
202
-	return &srq->ibsrq;
197
+	return 0;
203
198
 
204
199
 err_wrid:
205
-	if (pd->uobject)
206
-		mlx4_ib_db_unmap_user(to_mucontext(pd->uobject->context), &srq->db);
200
+	if (udata)
201
+		mlx4_ib_db_unmap_user(ucontext, &srq->db);
207
202
 	else
208
203
 		kvfree(srq->wrid);
209
204
 
..
..
@@ -211,19 +206,15 @@
211
206
 	mlx4_mtt_cleanup(dev->dev, &srq->mtt);
212
207
 
213
208
 err_buf:
214
-	if (pd->uobject)
215
-		ib_umem_release(srq->umem);
216
-	else
209
+	if (!srq->umem)
217
210
 		mlx4_buf_free(dev->dev, buf_size, &srq->buf);
211
+	ib_umem_release(srq->umem);
218
212
 
219
213
 err_db:
220
-	if (!pd->uobject)
214
+	if (!udata)
221
215
 		mlx4_db_free(dev->dev, &srq->db);
222
216
 
223
-err_srq:
224
-	kfree(srq);
225
-
226
-	return ERR_PTR(err);
217
+	return err;
227
218
 }
228
219
 
229
220
 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
..
..
@@ -270,7 +261,7 @@
270
261
 	return 0;
271
262
 }
272
263
 
273
-int mlx4_ib_destroy_srq(struct ib_srq *srq)
264
+int mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
274
265
 {
275
266
 	struct mlx4_ib_dev *dev = to_mdev(srq->device);
276
267
 	struct mlx4_ib_srq *msrq = to_msrq(srq);
..
..
@@ -278,18 +269,20 @@
278
269
 	mlx4_srq_free(dev->dev, &msrq->msrq);
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270
 	mlx4_mtt_cleanup(dev->dev, &msrq->mtt);
280
271
 
281
-	if (srq->uobject) {
282
-		mlx4_ib_db_unmap_user(to_mucontext(srq->uobject->context), &msrq->db);
283
-		ib_umem_release(msrq->umem);
272
+	if (udata) {
273
+		mlx4_ib_db_unmap_user(
274
+			rdma_udata_to_drv_context(
275
+				udata,
276
+				struct mlx4_ib_ucontext,
277
+				ibucontext),
278
+			&msrq->db);
284
279
 	} else {
285
280
 		kvfree(msrq->wrid);
286
281
 		mlx4_buf_free(dev->dev, msrq->msrq.max << msrq->msrq.wqe_shift,
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282
 			      &msrq->buf);
288
283
 		mlx4_db_free(dev->dev, &msrq->db);
289
284
 	}
290
-
291
-	kfree(msrq);
292
-
285
+	ib_umem_release(msrq->umem);
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286
 	return 0;
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287
 }
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288