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Subjectdrivers/vdpa/mlx5/core/resources.c:33: undefined reference to `mlx5_cmd_exec'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: eb5f95f1593f7c22dac681b19e815828e2af3efd
commit: 29064bfdabd5ef49eac6909d3a36a075e3b52255 vdpa/mlx5: Add support library for mlx5 VDPA implementation
date: 6 weeks ago
config: riscv-randconfig-p002-20200919 (attached as .config)
compiler: riscv32-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 29064bfdabd5ef49eac6909d3a36a075e3b52255
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `dealloc_pd':
>> drivers/vdpa/mlx5/core/resources.c:33: undefined reference to `mlx5_cmd_exec'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `destroy_uctx':
drivers/vdpa/mlx5/core/resources.c:85: undefined reference to `mlx5_cmd_exec'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `mlx5_vdpa_create_tis':
drivers/vdpa/mlx5/core/resources.c:95: undefined reference to `mlx5_cmd_exec'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `mlx5_vdpa_destroy_tis':
drivers/vdpa/mlx5/core/resources.c:109: undefined reference to `mlx5_cmd_exec'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `mlx5_vdpa_create_rqt':
drivers/vdpa/mlx5/core/resources.c:118: undefined reference to `mlx5_cmd_exec'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o:drivers/vdpa/mlx5/core/resources.c:132: more undefined references to `mlx5_cmd_exec' follow
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `mlx5_vdpa_alloc_resources':
>> drivers/vdpa/mlx5/core/resources.c:230: undefined reference to `mlx5_get_uars_page'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `create_uctx':
drivers/vdpa/mlx5/core/resources.c:69: undefined reference to `mlx5_cmd_exec'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `mlx5_vdpa_alloc_resources':
>> drivers/vdpa/mlx5/core/resources.c:263: undefined reference to `mlx5_put_uars_page'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `alloc_pd':
drivers/vdpa/mlx5/core/resources.c:18: undefined reference to `mlx5_cmd_exec'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `get_null_mkey':
drivers/vdpa/mlx5/core/resources.c:44: undefined reference to `mlx5_cmd_exec'
riscv32-linux-ld: drivers/vdpa/mlx5/core/resources.o: in function `mlx5_vdpa_free_resources':
drivers/vdpa/mlx5/core/resources.c:278: undefined reference to `mlx5_put_uars_page'

# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=29064bfdabd5ef49eac6909d3a36a075e3b52255
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 29064bfdabd5ef49eac6909d3a36a075e3b52255
vim +33 drivers/vdpa/mlx5/core/resources.c

24
25 static int dealloc_pd(struct mlx5_vdpa_dev *dev, u32 pdn, u16 uid)
26 {
27 u32 in[MLX5_ST_SZ_DW(dealloc_pd_in)] = {};
28 struct mlx5_core_dev *mdev = dev->mdev;
29
30 MLX5_SET(dealloc_pd_in, in, opcode, MLX5_CMD_OP_DEALLOC_PD);
31 MLX5_SET(dealloc_pd_in, in, pd, pdn);
32 MLX5_SET(dealloc_pd_in, in, uid, uid);
> 33 return mlx5_cmd_exec_in(mdev, dealloc_pd, in);
34 }
35
36 static int get_null_mkey(struct mlx5_vdpa_dev *dev, u32 *null_mkey)
37 {
38 u32 out[MLX5_ST_SZ_DW(query_special_contexts_out)] = {};
39 u32 in[MLX5_ST_SZ_DW(query_special_contexts_in)] = {};
40 struct mlx5_core_dev *mdev = dev->mdev;
41 int err;
42
43 MLX5_SET(query_special_contexts_in, in, opcode, MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS);
44 err = mlx5_cmd_exec_inout(mdev, query_special_contexts, in, out);
45 if (!err)
46 *null_mkey = MLX5_GET(query_special_contexts_out, out, null_mkey);
47 return err;
48 }
49
50 static int create_uctx(struct mlx5_vdpa_dev *mvdev, u16 *uid)
51 {
52 u32 out[MLX5_ST_SZ_DW(create_uctx_out)] = {};
53 int inlen;
54 void *in;
55 int err;
56
57 /* 0 means not supported */
58 if (!MLX5_CAP_GEN(mvdev->mdev, log_max_uctx))
59 return -EOPNOTSUPP;
60
61 inlen = MLX5_ST_SZ_BYTES(create_uctx_in);
62 in = kzalloc(inlen, GFP_KERNEL);
63 if (!in)
64 return -ENOMEM;
65
66 MLX5_SET(create_uctx_in, in, opcode, MLX5_CMD_OP_CREATE_UCTX);
67 MLX5_SET(create_uctx_in, in, uctx.cap, MLX5_UCTX_CAP_RAW_TX);
68
69 err = mlx5_cmd_exec(mvdev->mdev, in, inlen, out, sizeof(out));
70 kfree(in);
71 if (!err)
72 *uid = MLX5_GET(create_uctx_out, out, uid);
73
74 return err;
75 }
76
77 static void destroy_uctx(struct mlx5_vdpa_dev *mvdev, u32 uid)
78 {
79 u32 out[MLX5_ST_SZ_DW(destroy_uctx_out)] = {};
80 u32 in[MLX5_ST_SZ_DW(destroy_uctx_in)] = {};
81
82 MLX5_SET(destroy_uctx_in, in, opcode, MLX5_CMD_OP_DESTROY_UCTX);
83 MLX5_SET(destroy_uctx_in, in, uid, uid);
84
85 mlx5_cmd_exec(mvdev->mdev, in, sizeof(in), out, sizeof(out));
86 }
87
88 int mlx5_vdpa_create_tis(struct mlx5_vdpa_dev *mvdev, void *in, u32 *tisn)
89 {
90 u32 out[MLX5_ST_SZ_DW(create_tis_out)] = {};
91 int err;
92
93 MLX5_SET(create_tis_in, in, opcode, MLX5_CMD_OP_CREATE_TIS);
94 MLX5_SET(create_tis_in, in, uid, mvdev->res.uid);
95 err = mlx5_cmd_exec_inout(mvdev->mdev, create_tis, in, out);
96 if (!err)
97 *tisn = MLX5_GET(create_tis_out, out, tisn);
98
99 return err;
100 }
101
102 void mlx5_vdpa_destroy_tis(struct mlx5_vdpa_dev *mvdev, u32 tisn)
103 {
104 u32 in[MLX5_ST_SZ_DW(destroy_tis_in)] = {};
105
106 MLX5_SET(destroy_tis_in, in, opcode, MLX5_CMD_OP_DESTROY_TIS);
107 MLX5_SET(destroy_tis_in, in, uid, mvdev->res.uid);
108 MLX5_SET(destroy_tis_in, in, tisn, tisn);
109 mlx5_cmd_exec_in(mvdev->mdev, destroy_tis, in);
110 }
111
112 int mlx5_vdpa_create_rqt(struct mlx5_vdpa_dev *mvdev, void *in, int inlen, u32 *rqtn)
113 {
114 u32 out[MLX5_ST_SZ_DW(create_rqt_out)] = {};
115 int err;
116
117 MLX5_SET(create_rqt_in, in, opcode, MLX5_CMD_OP_CREATE_RQT);
118 err = mlx5_cmd_exec(mvdev->mdev, in, inlen, out, sizeof(out));
119 if (!err)
120 *rqtn = MLX5_GET(create_rqt_out, out, rqtn);
121
122 return err;
123 }
124
125 void mlx5_vdpa_destroy_rqt(struct mlx5_vdpa_dev *mvdev, u32 rqtn)
126 {
127 u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)] = {};
128
129 MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT);
130 MLX5_SET(destroy_rqt_in, in, uid, mvdev->res.uid);
131 MLX5_SET(destroy_rqt_in, in, rqtn, rqtn);
132 mlx5_cmd_exec_in(mvdev->mdev, destroy_rqt, in);
133 }
134
135 int mlx5_vdpa_create_tir(struct mlx5_vdpa_dev *mvdev, void *in, u32 *tirn)
136 {
137 u32 out[MLX5_ST_SZ_DW(create_tir_out)] = {};
138 int err;
139
140 MLX5_SET(create_tir_in, in, opcode, MLX5_CMD_OP_CREATE_TIR);
141 err = mlx5_cmd_exec_inout(mvdev->mdev, create_tir, in, out);
142 if (!err)
143 *tirn = MLX5_GET(create_tir_out, out, tirn);
144
145 return err;
146 }
147
148 void mlx5_vdpa_destroy_tir(struct mlx5_vdpa_dev *mvdev, u32 tirn)
149 {
150 u32 in[MLX5_ST_SZ_DW(destroy_tir_in)] = {};
151
152 MLX5_SET(destroy_tir_in, in, opcode, MLX5_CMD_OP_DESTROY_TIR);
153 MLX5_SET(destroy_tir_in, in, uid, mvdev->res.uid);
154 MLX5_SET(destroy_tir_in, in, tirn, tirn);
155 mlx5_cmd_exec_in(mvdev->mdev, destroy_tir, in);
156 }
157
158 int mlx5_vdpa_alloc_transport_domain(struct mlx5_vdpa_dev *mvdev, u32 *tdn)
159 {
160 u32 out[MLX5_ST_SZ_DW(alloc_transport_domain_out)] = {};
161 u32 in[MLX5_ST_SZ_DW(alloc_transport_domain_in)] = {};
162 int err;
163
164 MLX5_SET(alloc_transport_domain_in, in, opcode, MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN);
165 MLX5_SET(alloc_transport_domain_in, in, uid, mvdev->res.uid);
166
167 err = mlx5_cmd_exec_inout(mvdev->mdev, alloc_transport_domain, in, out);
168 if (!err)
169 *tdn = MLX5_GET(alloc_transport_domain_out, out, transport_domain);
170
171 return err;
172 }
173
174 void mlx5_vdpa_dealloc_transport_domain(struct mlx5_vdpa_dev *mvdev, u32 tdn)
175 {
176 u32 in[MLX5_ST_SZ_DW(dealloc_transport_domain_in)] = {};
177
178 MLX5_SET(dealloc_transport_domain_in, in, opcode, MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);
179 MLX5_SET(dealloc_transport_domain_in, in, uid, mvdev->res.uid);
180 MLX5_SET(dealloc_transport_domain_in, in, transport_domain, tdn);
181 mlx5_cmd_exec_in(mvdev->mdev, dealloc_transport_domain, in);
182 }
183
184 int mlx5_vdpa_create_mkey(struct mlx5_vdpa_dev *mvdev, struct mlx5_core_mkey *mkey, u32 *in,
185 int inlen)
186 {
187 u32 lout[MLX5_ST_SZ_DW(create_mkey_out)] = {};
188 u32 mkey_index;
189 void *mkc;
190 int err;
191
192 MLX5_SET(create_mkey_in, in, opcode, MLX5_CMD_OP_CREATE_MKEY);
193 MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
194
195 err = mlx5_cmd_exec(mvdev->mdev, in, inlen, lout, sizeof(lout));
196 if (err)
197 return err;
198
199 mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
200 mkey_index = MLX5_GET(create_mkey_out, lout, mkey_index);
201 mkey->iova = MLX5_GET64(mkc, mkc, start_addr);
202 mkey->size = MLX5_GET64(mkc, mkc, len);
203 mkey->key |= mlx5_idx_to_mkey(mkey_index);
204 mkey->pd = MLX5_GET(mkc, mkc, pd);
205 return 0;
206 }
207
208 int mlx5_vdpa_destroy_mkey(struct mlx5_vdpa_dev *mvdev, struct mlx5_core_mkey *mkey)
209 {
210 u32 in[MLX5_ST_SZ_DW(destroy_mkey_in)] = {};
211
212 MLX5_SET(destroy_mkey_in, in, uid, mvdev->res.uid);
213 MLX5_SET(destroy_mkey_in, in, opcode, MLX5_CMD_OP_DESTROY_MKEY);
214 MLX5_SET(destroy_mkey_in, in, mkey_index, mlx5_mkey_to_idx(mkey->key));
215 return mlx5_cmd_exec_in(mvdev->mdev, destroy_mkey, in);
216 }
217
218 int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev)
219 {
220 u64 offset = MLX5_CAP64_DEV_VDPA_EMULATION(mvdev->mdev, doorbell_bar_offset);
221 struct mlx5_vdpa_resources *res = &mvdev->res;
222 struct mlx5_core_dev *mdev = mvdev->mdev;
223 u64 kick_addr;
224 int err;
225
226 if (res->valid) {
227 mlx5_vdpa_warn(mvdev, "resources already allocated\n");
228 return -EINVAL;
229 }
> 230 res->uar = mlx5_get_uars_page(mdev);
231 if (IS_ERR(res->uar)) {
232 err = PTR_ERR(res->uar);
233 goto err_uars;
234 }
235
236 err = create_uctx(mvdev, &res->uid);
237 if (err)
238 goto err_uctx;
239
240 err = alloc_pd(mvdev, &res->pdn, res->uid);
241 if (err)
242 goto err_pd;
243
244 err = get_null_mkey(mvdev, &res->null_mkey);
245 if (err)
246 goto err_key;
247
248 kick_addr = pci_resource_start(mdev->pdev, 0) + offset;
249 res->kick_addr = ioremap(kick_addr, PAGE_SIZE);
250 if (!res->kick_addr) {
251 err = -ENOMEM;
252 goto err_key;
253 }
254 res->valid = true;
255
256 return 0;
257
258 err_key:
259 dealloc_pd(mvdev, res->pdn, res->uid);
260 err_pd:
261 destroy_uctx(mvdev, res->uid);
262 err_uctx:
263 mlx5_put_uars_page(mdev, res->uar);
264 err_uars:
265 return err;
266 }
267

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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