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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/crypto/cavium/nitrox/nitrox_lib.c
..
..
@@ -17,30 +17,29 @@
17
17
 
18
18
 #define CRYPTO_CTX_SIZE	256
19
19
 
20
-/* command queue alignments */
21
-#define PKT_IN_ALIGN	16
20
+/* packet inuput ring alignments */
21
+#define PKTIN_Q_ALIGN_BYTES 16
22
+/* AQM Queue input alignments */
23
+#define AQM_Q_ALIGN_BYTES 32
22
24
 
23
-static int cmdq_common_init(struct nitrox_cmdq *cmdq)
25
+static int nitrox_cmdq_init(struct nitrox_cmdq *cmdq, int align_bytes)
24
26
 {
25
27
 	struct nitrox_device *ndev = cmdq->ndev;
26
-	u32 qsize;
27
28
 
28
-	qsize = (ndev->qlen) * cmdq->instr_size;
29
-	cmdq->head_unaligned = dma_zalloc_coherent(DEV(ndev),
30
-						   (qsize + PKT_IN_ALIGN),
31
-						   &cmdq->dma_unaligned,
32
-						   GFP_KERNEL);
33
-	if (!cmdq->head_unaligned)
29
+	cmdq->qsize = (ndev->qlen * cmdq->instr_size) + align_bytes;
30
+	cmdq->unalign_base = dma_alloc_coherent(DEV(ndev), cmdq->qsize,
31
+						&cmdq->unalign_dma,
32
+						GFP_KERNEL);
33
+	if (!cmdq->unalign_base)
34
34
 		return -ENOMEM;
35
35
 
36
-	cmdq->head = PTR_ALIGN(cmdq->head_unaligned, PKT_IN_ALIGN);
37
-	cmdq->dma = PTR_ALIGN(cmdq->dma_unaligned, PKT_IN_ALIGN);
38
-	cmdq->qsize = (qsize + PKT_IN_ALIGN);
36
+	cmdq->dma = PTR_ALIGN(cmdq->unalign_dma, align_bytes);
37
+	cmdq->base = cmdq->unalign_base + (cmdq->dma - cmdq->unalign_dma);
39
38
 	cmdq->write_idx = 0;
40
39
 
41
-	spin_lock_init(&cmdq->response_lock);
42
-	spin_lock_init(&cmdq->cmdq_lock);
43
-	spin_lock_init(&cmdq->backlog_lock);
40
+	spin_lock_init(&cmdq->cmd_qlock);
41
+	spin_lock_init(&cmdq->resp_qlock);
42
+	spin_lock_init(&cmdq->backlog_qlock);
44
43
 
45
44
 	INIT_LIST_HEAD(&cmdq->response_head);
46
45
 	INIT_LIST_HEAD(&cmdq->backlog_head);
..
..
@@ -51,68 +50,138 @@
51
50
 	return 0;
52
51
 }
53
52
 
54
-static void cmdq_common_cleanup(struct nitrox_cmdq *cmdq)
53
+static void nitrox_cmdq_reset(struct nitrox_cmdq *cmdq)
55
54
 {
56
-	struct nitrox_device *ndev = cmdq->ndev;
55
+	cmdq->write_idx = 0;
56
+	atomic_set(&cmdq->pending_count, 0);
57
+	atomic_set(&cmdq->backlog_count, 0);
58
+}
57
59
 
60
+static void nitrox_cmdq_cleanup(struct nitrox_cmdq *cmdq)
61
+{
62
+	struct nitrox_device *ndev;
63
+
64
+	if (!cmdq)
65
+		return;
66
+
67
+	if (!cmdq->unalign_base)
68
+		return;
69
+
70
+	ndev = cmdq->ndev;
58
71
 	cancel_work_sync(&cmdq->backlog_qflush);
59
72
 
60
73
 	dma_free_coherent(DEV(ndev), cmdq->qsize,
61
-			  cmdq->head_unaligned, cmdq->dma_unaligned);
62
-
63
-	atomic_set(&cmdq->pending_count, 0);
64
-	atomic_set(&cmdq->backlog_count, 0);
74
+			  cmdq->unalign_base, cmdq->unalign_dma);
75
+	nitrox_cmdq_reset(cmdq);
65
76
 
66
77
 	cmdq->dbell_csr_addr = NULL;
67
-	cmdq->head = NULL;
78
+	cmdq->compl_cnt_csr_addr = NULL;
79
+	cmdq->unalign_base = NULL;
80
+	cmdq->base = NULL;
81
+	cmdq->unalign_dma = 0;
68
82
 	cmdq->dma = 0;
69
83
 	cmdq->qsize = 0;
70
84
 	cmdq->instr_size = 0;
71
85
 }
72
86
 
73
-static void nitrox_cleanup_pkt_cmdqs(struct nitrox_device *ndev)
87
+static void nitrox_free_aqm_queues(struct nitrox_device *ndev)
74
88
 {
75
89
 	int i;
76
90
 
77
91
 	for (i = 0; i < ndev->nr_queues; i++) {
78
-		struct nitrox_cmdq *cmdq = &ndev->pkt_cmdqs[i];
79
-
80
-		cmdq_common_cleanup(cmdq);
92
+		nitrox_cmdq_cleanup(ndev->aqmq[i]);
93
+		kfree_sensitive(ndev->aqmq[i]);
94
+		ndev->aqmq[i] = NULL;
81
95
 	}
82
-	kfree(ndev->pkt_cmdqs);
83
-	ndev->pkt_cmdqs = NULL;
84
96
 }
85
97
 
86
-static int nitrox_init_pkt_cmdqs(struct nitrox_device *ndev)
98
+static int nitrox_alloc_aqm_queues(struct nitrox_device *ndev)
87
99
 {
88
-	int i, err, size;
100
+	int i, err;
89
101
 
90
-	size = ndev->nr_queues * sizeof(struct nitrox_cmdq);
91
-	ndev->pkt_cmdqs = kzalloc(size, GFP_KERNEL);
92
-	if (!ndev->pkt_cmdqs)
102
+	for (i = 0; i < ndev->nr_queues; i++) {
103
+		struct nitrox_cmdq *cmdq;
104
+		u64 offset;
105
+
106
+		cmdq = kzalloc_node(sizeof(*cmdq), GFP_KERNEL, ndev->node);
107
+		if (!cmdq) {
108
+			err = -ENOMEM;
109
+			goto aqmq_fail;
110
+		}
111
+
112
+		cmdq->ndev = ndev;
113
+		cmdq->qno = i;
114
+		cmdq->instr_size = sizeof(struct aqmq_command_s);
115
+
116
+		/* AQM Queue Doorbell Counter Register Address */
117
+		offset = AQMQ_DRBLX(i);
118
+		cmdq->dbell_csr_addr = NITROX_CSR_ADDR(ndev, offset);
119
+		/* AQM Queue Commands Completed Count Register Address */
120
+		offset = AQMQ_CMD_CNTX(i);
121
+		cmdq->compl_cnt_csr_addr = NITROX_CSR_ADDR(ndev, offset);
122
+
123
+		err = nitrox_cmdq_init(cmdq, AQM_Q_ALIGN_BYTES);
124
+		if (err) {
125
+			kfree_sensitive(cmdq);
126
+			goto aqmq_fail;
127
+		}
128
+		ndev->aqmq[i] = cmdq;
129
+	}
130
+
131
+	return 0;
132
+
133
+aqmq_fail:
134
+	nitrox_free_aqm_queues(ndev);
135
+	return err;
136
+}
137
+
138
+static void nitrox_free_pktin_queues(struct nitrox_device *ndev)
139
+{
140
+	int i;
141
+
142
+	for (i = 0; i < ndev->nr_queues; i++) {
143
+		struct nitrox_cmdq *cmdq = &ndev->pkt_inq[i];
144
+
145
+		nitrox_cmdq_cleanup(cmdq);
146
+	}
147
+	kfree(ndev->pkt_inq);
148
+	ndev->pkt_inq = NULL;
149
+}
150
+
151
+static int nitrox_alloc_pktin_queues(struct nitrox_device *ndev)
152
+{
153
+	int i, err;
154
+
155
+	ndev->pkt_inq = kcalloc_node(ndev->nr_queues,
156
+				     sizeof(struct nitrox_cmdq),
157
+				     GFP_KERNEL, ndev->node);
158
+	if (!ndev->pkt_inq)
93
159
 		return -ENOMEM;
94
160
 
95
161
 	for (i = 0; i < ndev->nr_queues; i++) {
96
162
 		struct nitrox_cmdq *cmdq;
97
163
 		u64 offset;
98
164
 
99
-		cmdq = &ndev->pkt_cmdqs[i];
165
+		cmdq = &ndev->pkt_inq[i];
100
166
 		cmdq->ndev = ndev;
101
167
 		cmdq->qno = i;
102
168
 		cmdq->instr_size = sizeof(struct nps_pkt_instr);
103
169
 
170
+		/* packet input ring doorbell address */
104
171
 		offset = NPS_PKT_IN_INSTR_BAOFF_DBELLX(i);
105
-		/* SE ring doorbell address for this queue */
106
172
 		cmdq->dbell_csr_addr = NITROX_CSR_ADDR(ndev, offset);
173
+		/* packet solicit port completion count address */
174
+		offset = NPS_PKT_SLC_CNTSX(i);
175
+		cmdq->compl_cnt_csr_addr = NITROX_CSR_ADDR(ndev, offset);
107
176
 
108
-		err = cmdq_common_init(cmdq);
177
+		err = nitrox_cmdq_init(cmdq, PKTIN_Q_ALIGN_BYTES);
109
178
 		if (err)
110
-			goto pkt_cmdq_fail;
179
+			goto pktq_fail;
111
180
 	}
112
181
 	return 0;
113
182
 
114
-pkt_cmdq_fail:
115
-	nitrox_cleanup_pkt_cmdqs(ndev);
183
+pktq_fail:
184
+	nitrox_free_pktin_queues(ndev);
116
185
 	return err;
117
186
 }
118
187
 
..
..
@@ -122,7 +191,7 @@
122
191
 
123
192
 	/* Crypto context pool, 16 byte aligned */
124
193
 	size = CRYPTO_CTX_SIZE + sizeof(struct ctx_hdr);
125
-	ndev->ctx_pool = dma_pool_create("crypto-context",
194
+	ndev->ctx_pool = dma_pool_create("nitrox-context",
126
195
 					 DEV(ndev), size, 16, 0);
127
196
 	if (!ndev->ctx_pool)
128
197
 		return -ENOMEM;
..
..
@@ -154,7 +223,7 @@
154
223
 	if (!chdr)
155
224
 		return NULL;
156
225
 
157
-	vaddr = dma_pool_alloc(ndev->ctx_pool, (GFP_KERNEL | __GFP_ZERO), &dma);
226
+	vaddr = dma_pool_zalloc(ndev->ctx_pool, GFP_KERNEL, &dma);
158
227
 	if (!vaddr) {
159
228
 		kfree(chdr);
160
229
 		return NULL;
..
..
@@ -206,9 +275,15 @@
206
275
 	if (err)
207
276
 		return err;
208
277
 
209
-	err = nitrox_init_pkt_cmdqs(ndev);
278
+	err = nitrox_alloc_pktin_queues(ndev);
210
279
 	if (err)
211
280
 		destroy_crypto_dma_pool(ndev);
281
+
282
+	err = nitrox_alloc_aqm_queues(ndev);
283
+	if (err) {
284
+		nitrox_free_pktin_queues(ndev);
285
+		destroy_crypto_dma_pool(ndev);
286
+	}
212
287
 
213
288
 	return err;
214
289
 }
..
..
@@ -219,6 +294,7 @@
219
294
  */
220
295
 void nitrox_common_sw_cleanup(struct nitrox_device *ndev)
221
296
 {
222
-	nitrox_cleanup_pkt_cmdqs(ndev);
297
+	nitrox_free_aqm_queues(ndev);
298
+	nitrox_free_pktin_queues(ndev);
223
299
 	destroy_crypto_dma_pool(ndev);
224
300
 }