Commit | Line | Data |
---|---|---|
93a76530 GS |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* Texas Instruments K3 AM65 Ethernet Switch SubSystem Driver | |
3 | * | |
4 | * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ | |
5 | * | |
6 | */ | |
7 | ||
23015ff1 | 8 | #include <linux/clk.h> |
93a76530 GS |
9 | #include <linux/etherdevice.h> |
10 | #include <linux/if_vlan.h> | |
11 | #include <linux/interrupt.h> | |
0b718007 | 12 | #include <linux/irqdomain.h> |
93a76530 GS |
13 | #include <linux/kernel.h> |
14 | #include <linux/kmemleak.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/netdevice.h> | |
17 | #include <linux/net_tstamp.h> | |
18 | #include <linux/of.h> | |
19 | #include <linux/of_mdio.h> | |
20 | #include <linux/of_net.h> | |
21 | #include <linux/of_device.h> | |
e8609e69 | 22 | #include <linux/phylink.h> |
93a76530 GS |
23 | #include <linux/phy/phy.h> |
24 | #include <linux/platform_device.h> | |
25 | #include <linux/pm_runtime.h> | |
26 | #include <linux/regmap.h> | |
27 | #include <linux/mfd/syscon.h> | |
38389aa6 | 28 | #include <linux/sys_soc.h> |
93a76530 GS |
29 | #include <linux/dma/ti-cppi5.h> |
30 | #include <linux/dma/k3-udma-glue.h> | |
957e2235 | 31 | #include <net/switchdev.h> |
93a76530 GS |
32 | |
33 | #include "cpsw_ale.h" | |
34 | #include "cpsw_sl.h" | |
35 | #include "am65-cpsw-nuss.h" | |
86e8b070 | 36 | #include "am65-cpsw-switchdev.h" |
93a76530 | 37 | #include "k3-cppi-desc-pool.h" |
b1f66a5b | 38 | #include "am65-cpts.h" |
93a76530 GS |
39 | |
40 | #define AM65_CPSW_SS_BASE 0x0 | |
41 | #define AM65_CPSW_SGMII_BASE 0x100 | |
42 | #define AM65_CPSW_XGMII_BASE 0x2100 | |
43 | #define AM65_CPSW_CPSW_NU_BASE 0x20000 | |
44 | #define AM65_CPSW_NU_PORTS_BASE 0x1000 | |
8127224c | 45 | #define AM65_CPSW_NU_FRAM_BASE 0x12000 |
93a76530 GS |
46 | #define AM65_CPSW_NU_STATS_BASE 0x1a000 |
47 | #define AM65_CPSW_NU_ALE_BASE 0x1e000 | |
48 | #define AM65_CPSW_NU_CPTS_BASE 0x1d000 | |
49 | ||
50 | #define AM65_CPSW_NU_PORTS_OFFSET 0x1000 | |
51 | #define AM65_CPSW_NU_STATS_PORT_OFFSET 0x200 | |
8127224c | 52 | #define AM65_CPSW_NU_FRAM_PORT_OFFSET 0x200 |
93a76530 GS |
53 | |
54 | #define AM65_CPSW_MAX_PORTS 8 | |
55 | ||
56 | #define AM65_CPSW_MIN_PACKET_SIZE VLAN_ETH_ZLEN | |
57 | #define AM65_CPSW_MAX_PACKET_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN) | |
58 | ||
59 | #define AM65_CPSW_REG_CTL 0x004 | |
60 | #define AM65_CPSW_REG_STAT_PORT_EN 0x014 | |
61 | #define AM65_CPSW_REG_PTYPE 0x018 | |
62 | ||
63 | #define AM65_CPSW_P0_REG_CTL 0x004 | |
64 | #define AM65_CPSW_PORT0_REG_FLOW_ID_OFFSET 0x008 | |
65 | ||
66 | #define AM65_CPSW_PORT_REG_PRI_CTL 0x01c | |
67 | #define AM65_CPSW_PORT_REG_RX_PRI_MAP 0x020 | |
68 | #define AM65_CPSW_PORT_REG_RX_MAXLEN 0x024 | |
69 | ||
70 | #define AM65_CPSW_PORTN_REG_SA_L 0x308 | |
71 | #define AM65_CPSW_PORTN_REG_SA_H 0x30c | |
72 | #define AM65_CPSW_PORTN_REG_TS_CTL 0x310 | |
73 | #define AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG 0x314 | |
74 | #define AM65_CPSW_PORTN_REG_TS_VLAN_LTYPE_REG 0x318 | |
75 | #define AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2 0x31C | |
76 | ||
37184fc1 SV |
77 | #define AM65_CPSW_SGMII_CONTROL_REG 0x010 |
78 | #define AM65_CPSW_SGMII_CONTROL_MR_AN_ENABLE BIT(0) | |
79 | ||
93a76530 GS |
80 | #define AM65_CPSW_CTL_VLAN_AWARE BIT(1) |
81 | #define AM65_CPSW_CTL_P0_ENABLE BIT(2) | |
82 | #define AM65_CPSW_CTL_P0_TX_CRC_REMOVE BIT(13) | |
83 | #define AM65_CPSW_CTL_P0_RX_PAD BIT(14) | |
84 | ||
85 | /* AM65_CPSW_P0_REG_CTL */ | |
86 | #define AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN BIT(0) | |
87 | ||
88 | /* AM65_CPSW_PORT_REG_PRI_CTL */ | |
89 | #define AM65_CPSW_PORT_REG_PRI_CTL_RX_PTYPE_RROBIN BIT(8) | |
90 | ||
91 | /* AM65_CPSW_PN_TS_CTL register fields */ | |
92 | #define AM65_CPSW_PN_TS_CTL_TX_ANX_F_EN BIT(4) | |
93 | #define AM65_CPSW_PN_TS_CTL_TX_VLAN_LT1_EN BIT(5) | |
94 | #define AM65_CPSW_PN_TS_CTL_TX_VLAN_LT2_EN BIT(6) | |
95 | #define AM65_CPSW_PN_TS_CTL_TX_ANX_D_EN BIT(7) | |
96 | #define AM65_CPSW_PN_TS_CTL_TX_ANX_E_EN BIT(10) | |
97 | #define AM65_CPSW_PN_TS_CTL_TX_HOST_TS_EN BIT(11) | |
98 | #define AM65_CPSW_PN_TS_CTL_MSG_TYPE_EN_SHIFT 16 | |
99 | ||
100 | /* AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG register fields */ | |
101 | #define AM65_CPSW_PN_TS_SEQ_ID_OFFSET_SHIFT 16 | |
102 | ||
103 | /* AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2 */ | |
104 | #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_107 BIT(16) | |
105 | #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_129 BIT(17) | |
106 | #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_130 BIT(18) | |
107 | #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_131 BIT(19) | |
108 | #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_132 BIT(20) | |
109 | #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_319 BIT(21) | |
110 | #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_320 BIT(22) | |
111 | #define AM65_CPSW_PN_TS_CTL_LTYPE2_TS_TTL_NONZERO BIT(23) | |
112 | ||
113 | /* The PTP event messages - Sync, Delay_Req, Pdelay_Req, and Pdelay_Resp. */ | |
114 | #define AM65_CPSW_TS_EVENT_MSG_TYPE_BITS (BIT(0) | BIT(1) | BIT(2) | BIT(3)) | |
115 | ||
116 | #define AM65_CPSW_TS_SEQ_ID_OFFSET (0x1e) | |
117 | ||
118 | #define AM65_CPSW_TS_TX_ANX_ALL_EN \ | |
119 | (AM65_CPSW_PN_TS_CTL_TX_ANX_D_EN | \ | |
120 | AM65_CPSW_PN_TS_CTL_TX_ANX_E_EN | \ | |
121 | AM65_CPSW_PN_TS_CTL_TX_ANX_F_EN) | |
122 | ||
123 | #define AM65_CPSW_ALE_AGEOUT_DEFAULT 30 | |
124 | /* Number of TX/RX descriptors */ | |
125 | #define AM65_CPSW_MAX_TX_DESC 500 | |
126 | #define AM65_CPSW_MAX_RX_DESC 500 | |
127 | ||
128 | #define AM65_CPSW_NAV_PS_DATA_SIZE 16 | |
129 | #define AM65_CPSW_NAV_SW_DATA_SIZE 16 | |
130 | ||
131 | #define AM65_CPSW_DEBUG (NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK | \ | |
132 | NETIF_MSG_IFUP | NETIF_MSG_PROBE | NETIF_MSG_IFDOWN | \ | |
133 | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) | |
134 | ||
135 | static void am65_cpsw_port_set_sl_mac(struct am65_cpsw_port *slave, | |
136 | const u8 *dev_addr) | |
137 | { | |
138 | u32 mac_hi = (dev_addr[0] << 0) | (dev_addr[1] << 8) | | |
139 | (dev_addr[2] << 16) | (dev_addr[3] << 24); | |
140 | u32 mac_lo = (dev_addr[4] << 0) | (dev_addr[5] << 8); | |
141 | ||
142 | writel(mac_hi, slave->port_base + AM65_CPSW_PORTN_REG_SA_H); | |
143 | writel(mac_lo, slave->port_base + AM65_CPSW_PORTN_REG_SA_L); | |
144 | } | |
145 | ||
146 | static void am65_cpsw_sl_ctl_reset(struct am65_cpsw_port *port) | |
147 | { | |
148 | cpsw_sl_reset(port->slave.mac_sl, 100); | |
149 | /* Max length register has to be restored after MAC SL reset */ | |
150 | writel(AM65_CPSW_MAX_PACKET_SIZE, | |
151 | port->port_base + AM65_CPSW_PORT_REG_RX_MAXLEN); | |
152 | } | |
153 | ||
154 | static void am65_cpsw_nuss_get_ver(struct am65_cpsw_common *common) | |
155 | { | |
156 | common->nuss_ver = readl(common->ss_base); | |
157 | common->cpsw_ver = readl(common->cpsw_base); | |
158 | dev_info(common->dev, | |
38389aa6 | 159 | "initializing am65 cpsw nuss version 0x%08X, cpsw version 0x%08X Ports: %u quirks:%08x\n", |
93a76530 GS |
160 | common->nuss_ver, |
161 | common->cpsw_ver, | |
38389aa6 GS |
162 | common->port_num + 1, |
163 | common->pdata.quirks); | |
93a76530 GS |
164 | } |
165 | ||
93a76530 GS |
166 | static int am65_cpsw_nuss_ndo_slave_add_vid(struct net_device *ndev, |
167 | __be16 proto, u16 vid) | |
168 | { | |
169 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
170 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
171 | u32 port_mask, unreg_mcast = 0; | |
172 | int ret; | |
173 | ||
86e8b070 VR |
174 | if (!common->is_emac_mode) |
175 | return 0; | |
176 | ||
7bcffde0 GS |
177 | if (!netif_running(ndev) || !vid) |
178 | return 0; | |
179 | ||
2240514c MC |
180 | ret = pm_runtime_resume_and_get(common->dev); |
181 | if (ret < 0) | |
93a76530 | 182 | return ret; |
93a76530 GS |
183 | |
184 | port_mask = BIT(port->port_id) | ALE_PORT_HOST; | |
185 | if (!vid) | |
186 | unreg_mcast = port_mask; | |
187 | dev_info(common->dev, "Adding vlan %d to vlan filter\n", vid); | |
2d64a034 GS |
188 | ret = cpsw_ale_vlan_add_modify(common->ale, vid, port_mask, |
189 | unreg_mcast, port_mask, 0); | |
93a76530 GS |
190 | |
191 | pm_runtime_put(common->dev); | |
192 | return ret; | |
193 | } | |
194 | ||
195 | static int am65_cpsw_nuss_ndo_slave_kill_vid(struct net_device *ndev, | |
196 | __be16 proto, u16 vid) | |
197 | { | |
198 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
2d64a034 | 199 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); |
93a76530 GS |
200 | int ret; |
201 | ||
86e8b070 VR |
202 | if (!common->is_emac_mode) |
203 | return 0; | |
204 | ||
7bcffde0 GS |
205 | if (!netif_running(ndev) || !vid) |
206 | return 0; | |
207 | ||
2240514c MC |
208 | ret = pm_runtime_resume_and_get(common->dev); |
209 | if (ret < 0) | |
93a76530 | 210 | return ret; |
93a76530 GS |
211 | |
212 | dev_info(common->dev, "Removing vlan %d from vlan filter\n", vid); | |
2d64a034 GS |
213 | ret = cpsw_ale_del_vlan(common->ale, vid, |
214 | BIT(port->port_id) | ALE_PORT_HOST); | |
93a76530 GS |
215 | |
216 | pm_runtime_put(common->dev); | |
217 | return ret; | |
218 | } | |
219 | ||
84b4aa49 GS |
220 | static void am65_cpsw_slave_set_promisc(struct am65_cpsw_port *port, |
221 | bool promisc) | |
93a76530 GS |
222 | { |
223 | struct am65_cpsw_common *common = port->common; | |
224 | ||
86e8b070 VR |
225 | if (promisc && !common->is_emac_mode) { |
226 | dev_dbg(common->dev, "promisc mode requested in switch mode"); | |
227 | return; | |
228 | } | |
229 | ||
93a76530 GS |
230 | if (promisc) { |
231 | /* Enable promiscuous mode */ | |
232 | cpsw_ale_control_set(common->ale, port->port_id, | |
233 | ALE_PORT_MACONLY_CAF, 1); | |
234 | dev_dbg(common->dev, "promisc enabled\n"); | |
235 | } else { | |
236 | /* Disable promiscuous mode */ | |
237 | cpsw_ale_control_set(common->ale, port->port_id, | |
238 | ALE_PORT_MACONLY_CAF, 0); | |
239 | dev_dbg(common->dev, "promisc disabled\n"); | |
240 | } | |
241 | } | |
242 | ||
243 | static void am65_cpsw_nuss_ndo_slave_set_rx_mode(struct net_device *ndev) | |
244 | { | |
245 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
246 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
247 | u32 port_mask; | |
248 | bool promisc; | |
249 | ||
250 | promisc = !!(ndev->flags & IFF_PROMISC); | |
84b4aa49 | 251 | am65_cpsw_slave_set_promisc(port, promisc); |
93a76530 GS |
252 | |
253 | if (promisc) | |
254 | return; | |
255 | ||
256 | /* Restore allmulti on vlans if necessary */ | |
257 | cpsw_ale_set_allmulti(common->ale, | |
258 | ndev->flags & IFF_ALLMULTI, port->port_id); | |
259 | ||
260 | port_mask = ALE_PORT_HOST; | |
261 | /* Clear all mcast from ALE */ | |
262 | cpsw_ale_flush_multicast(common->ale, port_mask, -1); | |
263 | ||
264 | if (!netdev_mc_empty(ndev)) { | |
265 | struct netdev_hw_addr *ha; | |
266 | ||
267 | /* program multicast address list into ALE register */ | |
268 | netdev_for_each_mc_addr(ha, ndev) { | |
269 | cpsw_ale_add_mcast(common->ale, ha->addr, | |
270 | port_mask, 0, 0, 0); | |
271 | } | |
272 | } | |
273 | } | |
274 | ||
275 | static void am65_cpsw_nuss_ndo_host_tx_timeout(struct net_device *ndev, | |
276 | unsigned int txqueue) | |
277 | { | |
278 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
279 | struct am65_cpsw_tx_chn *tx_chn; | |
280 | struct netdev_queue *netif_txq; | |
281 | unsigned long trans_start; | |
282 | ||
283 | netif_txq = netdev_get_tx_queue(ndev, txqueue); | |
284 | tx_chn = &common->tx_chns[txqueue]; | |
5337824f | 285 | trans_start = READ_ONCE(netif_txq->trans_start); |
93a76530 GS |
286 | |
287 | netdev_err(ndev, "txq:%d DRV_XOFF:%d tmo:%u dql_avail:%d free_desc:%zu\n", | |
288 | txqueue, | |
289 | netif_tx_queue_stopped(netif_txq), | |
290 | jiffies_to_msecs(jiffies - trans_start), | |
291 | dql_avail(&netif_txq->dql), | |
292 | k3_cppi_desc_pool_avail(tx_chn->desc_pool)); | |
293 | ||
294 | if (netif_tx_queue_stopped(netif_txq)) { | |
295 | /* try recover if stopped by us */ | |
296 | txq_trans_update(netif_txq); | |
297 | netif_tx_wake_queue(netif_txq); | |
298 | } | |
299 | } | |
300 | ||
301 | static int am65_cpsw_nuss_rx_push(struct am65_cpsw_common *common, | |
302 | struct sk_buff *skb) | |
303 | { | |
304 | struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns; | |
305 | struct cppi5_host_desc_t *desc_rx; | |
306 | struct device *dev = common->dev; | |
307 | u32 pkt_len = skb_tailroom(skb); | |
308 | dma_addr_t desc_dma; | |
309 | dma_addr_t buf_dma; | |
310 | void *swdata; | |
311 | ||
312 | desc_rx = k3_cppi_desc_pool_alloc(rx_chn->desc_pool); | |
313 | if (!desc_rx) { | |
314 | dev_err(dev, "Failed to allocate RXFDQ descriptor\n"); | |
315 | return -ENOMEM; | |
316 | } | |
317 | desc_dma = k3_cppi_desc_pool_virt2dma(rx_chn->desc_pool, desc_rx); | |
318 | ||
ed569ed9 PU |
319 | buf_dma = dma_map_single(rx_chn->dma_dev, skb->data, pkt_len, |
320 | DMA_FROM_DEVICE); | |
321 | if (unlikely(dma_mapping_error(rx_chn->dma_dev, buf_dma))) { | |
93a76530 GS |
322 | k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); |
323 | dev_err(dev, "Failed to map rx skb buffer\n"); | |
324 | return -EINVAL; | |
325 | } | |
326 | ||
327 | cppi5_hdesc_init(desc_rx, CPPI5_INFO0_HDESC_EPIB_PRESENT, | |
328 | AM65_CPSW_NAV_PS_DATA_SIZE); | |
39fd0547 | 329 | k3_udma_glue_rx_dma_to_cppi5_addr(rx_chn->rx_chn, &buf_dma); |
a9e60cf0 | 330 | cppi5_hdesc_attach_buf(desc_rx, buf_dma, skb_tailroom(skb), buf_dma, skb_tailroom(skb)); |
93a76530 GS |
331 | swdata = cppi5_hdesc_get_swdata(desc_rx); |
332 | *((void **)swdata) = skb; | |
333 | ||
334 | return k3_udma_glue_push_rx_chn(rx_chn->rx_chn, 0, desc_rx, desc_dma); | |
335 | } | |
336 | ||
337 | void am65_cpsw_nuss_set_p0_ptype(struct am65_cpsw_common *common) | |
338 | { | |
339 | struct am65_cpsw_host *host_p = am65_common_get_host(common); | |
340 | u32 val, pri_map; | |
341 | ||
342 | /* P0 set Receive Priority Type */ | |
343 | val = readl(host_p->port_base + AM65_CPSW_PORT_REG_PRI_CTL); | |
344 | ||
345 | if (common->pf_p0_rx_ptype_rrobin) { | |
346 | val |= AM65_CPSW_PORT_REG_PRI_CTL_RX_PTYPE_RROBIN; | |
347 | /* Enet Ports fifos works in fixed priority mode only, so | |
348 | * reset P0_Rx_Pri_Map so all packet will go in Enet fifo 0 | |
349 | */ | |
350 | pri_map = 0x0; | |
351 | } else { | |
352 | val &= ~AM65_CPSW_PORT_REG_PRI_CTL_RX_PTYPE_RROBIN; | |
353 | /* restore P0_Rx_Pri_Map */ | |
354 | pri_map = 0x76543210; | |
355 | } | |
356 | ||
357 | writel(pri_map, host_p->port_base + AM65_CPSW_PORT_REG_RX_PRI_MAP); | |
358 | writel(val, host_p->port_base + AM65_CPSW_PORT_REG_PRI_CTL); | |
359 | } | |
360 | ||
58356eb3 VR |
361 | static void am65_cpsw_init_host_port_switch(struct am65_cpsw_common *common); |
362 | static void am65_cpsw_init_host_port_emac(struct am65_cpsw_common *common); | |
363 | static void am65_cpsw_init_port_switch_ale(struct am65_cpsw_port *port); | |
364 | static void am65_cpsw_init_port_emac_ale(struct am65_cpsw_port *port); | |
365 | ||
3342a10f | 366 | static int am65_cpsw_nuss_common_open(struct am65_cpsw_common *common) |
93a76530 GS |
367 | { |
368 | struct am65_cpsw_host *host_p = am65_common_get_host(common); | |
369 | int port_idx, i, ret; | |
370 | struct sk_buff *skb; | |
371 | u32 val, port_mask; | |
372 | ||
373 | if (common->usage_count) | |
374 | return 0; | |
375 | ||
376 | /* Control register */ | |
377 | writel(AM65_CPSW_CTL_P0_ENABLE | AM65_CPSW_CTL_P0_TX_CRC_REMOVE | | |
378 | AM65_CPSW_CTL_VLAN_AWARE | AM65_CPSW_CTL_P0_RX_PAD, | |
379 | common->cpsw_base + AM65_CPSW_REG_CTL); | |
380 | /* Max length register */ | |
381 | writel(AM65_CPSW_MAX_PACKET_SIZE, | |
382 | host_p->port_base + AM65_CPSW_PORT_REG_RX_MAXLEN); | |
383 | /* set base flow_id */ | |
384 | writel(common->rx_flow_id_base, | |
385 | host_p->port_base + AM65_CPSW_PORT0_REG_FLOW_ID_OFFSET); | |
386 | /* en tx crc offload */ | |
97067aaf | 387 | writel(AM65_CPSW_P0_REG_CTL_RX_CHECKSUM_EN, host_p->port_base + AM65_CPSW_P0_REG_CTL); |
93a76530 GS |
388 | |
389 | am65_cpsw_nuss_set_p0_ptype(common); | |
390 | ||
391 | /* enable statistic */ | |
392 | val = BIT(HOST_PORT_NUM); | |
393 | for (port_idx = 0; port_idx < common->port_num; port_idx++) { | |
394 | struct am65_cpsw_port *port = &common->ports[port_idx]; | |
395 | ||
396 | if (!port->disabled) | |
397 | val |= BIT(port->port_id); | |
398 | } | |
399 | writel(val, common->cpsw_base + AM65_CPSW_REG_STAT_PORT_EN); | |
400 | ||
401 | /* disable priority elevation */ | |
402 | writel(0, common->cpsw_base + AM65_CPSW_REG_PTYPE); | |
403 | ||
404 | cpsw_ale_start(common->ale); | |
405 | ||
406 | /* limit to one RX flow only */ | |
407 | cpsw_ale_control_set(common->ale, HOST_PORT_NUM, | |
408 | ALE_DEFAULT_THREAD_ID, 0); | |
409 | cpsw_ale_control_set(common->ale, HOST_PORT_NUM, | |
410 | ALE_DEFAULT_THREAD_ENABLE, 1); | |
93a76530 GS |
411 | /* switch to vlan unaware mode */ |
412 | cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_VLAN_AWARE, 1); | |
413 | cpsw_ale_control_set(common->ale, HOST_PORT_NUM, | |
414 | ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); | |
415 | ||
416 | /* default vlan cfg: create mask based on enabled ports */ | |
417 | port_mask = GENMASK(common->port_num, 0) & | |
418 | ~common->disabled_ports_mask; | |
419 | ||
420 | cpsw_ale_add_vlan(common->ale, 0, port_mask, | |
421 | port_mask, port_mask, | |
422 | port_mask & ~ALE_PORT_HOST); | |
423 | ||
58356eb3 VR |
424 | if (common->is_emac_mode) |
425 | am65_cpsw_init_host_port_emac(common); | |
426 | else | |
427 | am65_cpsw_init_host_port_switch(common); | |
428 | ||
93a76530 GS |
429 | for (i = 0; i < common->rx_chns.descs_num; i++) { |
430 | skb = __netdev_alloc_skb_ip_align(NULL, | |
431 | AM65_CPSW_MAX_PACKET_SIZE, | |
432 | GFP_KERNEL); | |
433 | if (!skb) { | |
434 | dev_err(common->dev, "cannot allocate skb\n"); | |
435 | return -ENOMEM; | |
436 | } | |
437 | ||
438 | ret = am65_cpsw_nuss_rx_push(common, skb); | |
439 | if (ret < 0) { | |
440 | dev_err(common->dev, | |
441 | "cannot submit skb to channel rx, error %d\n", | |
442 | ret); | |
443 | kfree_skb(skb); | |
444 | return ret; | |
445 | } | |
446 | kmemleak_not_leak(skb); | |
447 | } | |
448 | k3_udma_glue_enable_rx_chn(common->rx_chns.rx_chn); | |
449 | ||
450 | for (i = 0; i < common->tx_ch_num; i++) { | |
451 | ret = k3_udma_glue_enable_tx_chn(common->tx_chns[i].tx_chn); | |
452 | if (ret) | |
453 | return ret; | |
454 | napi_enable(&common->tx_chns[i].napi_tx); | |
455 | } | |
456 | ||
457 | napi_enable(&common->napi_rx); | |
47bfc4d1 VR |
458 | if (common->rx_irq_disabled) { |
459 | common->rx_irq_disabled = false; | |
460 | enable_irq(common->rx_chns.irq); | |
461 | } | |
93a76530 GS |
462 | |
463 | dev_dbg(common->dev, "cpsw_nuss started\n"); | |
464 | return 0; | |
465 | } | |
466 | ||
467 | static void am65_cpsw_nuss_tx_cleanup(void *data, dma_addr_t desc_dma); | |
468 | static void am65_cpsw_nuss_rx_cleanup(void *data, dma_addr_t desc_dma); | |
469 | ||
470 | static int am65_cpsw_nuss_common_stop(struct am65_cpsw_common *common) | |
471 | { | |
472 | int i; | |
473 | ||
474 | if (common->usage_count != 1) | |
475 | return 0; | |
476 | ||
477 | cpsw_ale_control_set(common->ale, HOST_PORT_NUM, | |
478 | ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); | |
479 | ||
480 | /* shutdown tx channels */ | |
481 | atomic_set(&common->tdown_cnt, common->tx_ch_num); | |
482 | /* ensure new tdown_cnt value is visible */ | |
483 | smp_mb__after_atomic(); | |
484 | reinit_completion(&common->tdown_complete); | |
485 | ||
486 | for (i = 0; i < common->tx_ch_num; i++) | |
487 | k3_udma_glue_tdown_tx_chn(common->tx_chns[i].tx_chn, false); | |
488 | ||
489 | i = wait_for_completion_timeout(&common->tdown_complete, | |
490 | msecs_to_jiffies(1000)); | |
491 | if (!i) | |
492 | dev_err(common->dev, "tx timeout\n"); | |
493 | for (i = 0; i < common->tx_ch_num; i++) | |
494 | napi_disable(&common->tx_chns[i].napi_tx); | |
495 | ||
496 | for (i = 0; i < common->tx_ch_num; i++) { | |
497 | k3_udma_glue_reset_tx_chn(common->tx_chns[i].tx_chn, | |
498 | &common->tx_chns[i], | |
499 | am65_cpsw_nuss_tx_cleanup); | |
500 | k3_udma_glue_disable_tx_chn(common->tx_chns[i].tx_chn); | |
501 | } | |
502 | ||
503 | k3_udma_glue_tdown_rx_chn(common->rx_chns.rx_chn, true); | |
504 | napi_disable(&common->napi_rx); | |
505 | ||
506 | for (i = 0; i < AM65_CPSW_MAX_RX_FLOWS; i++) | |
507 | k3_udma_glue_reset_rx_chn(common->rx_chns.rx_chn, i, | |
508 | &common->rx_chns, | |
509 | am65_cpsw_nuss_rx_cleanup, !!i); | |
510 | ||
511 | k3_udma_glue_disable_rx_chn(common->rx_chns.rx_chn); | |
512 | ||
513 | cpsw_ale_stop(common->ale); | |
514 | ||
515 | writel(0, common->cpsw_base + AM65_CPSW_REG_CTL); | |
516 | writel(0, common->cpsw_base + AM65_CPSW_REG_STAT_PORT_EN); | |
517 | ||
518 | dev_dbg(common->dev, "cpsw_nuss stopped\n"); | |
519 | return 0; | |
520 | } | |
521 | ||
522 | static int am65_cpsw_nuss_ndo_slave_stop(struct net_device *ndev) | |
523 | { | |
524 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
525 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
526 | int ret; | |
527 | ||
e8609e69 | 528 | phylink_stop(port->slave.phylink); |
93a76530 GS |
529 | |
530 | netif_tx_stop_all_queues(ndev); | |
531 | ||
e8609e69 | 532 | phylink_disconnect_phy(port->slave.phylink); |
93a76530 GS |
533 | |
534 | ret = am65_cpsw_nuss_common_stop(common); | |
535 | if (ret) | |
536 | return ret; | |
537 | ||
538 | common->usage_count--; | |
539 | pm_runtime_put(common->dev); | |
540 | return 0; | |
541 | } | |
542 | ||
7bcffde0 GS |
543 | static int cpsw_restore_vlans(struct net_device *vdev, int vid, void *arg) |
544 | { | |
545 | struct am65_cpsw_port *port = arg; | |
546 | ||
547 | if (!vdev) | |
548 | return 0; | |
549 | ||
550 | return am65_cpsw_nuss_ndo_slave_add_vid(port->ndev, 0, vid); | |
551 | } | |
552 | ||
93a76530 GS |
553 | static int am65_cpsw_nuss_ndo_slave_open(struct net_device *ndev) |
554 | { | |
555 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
556 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
93a76530 GS |
557 | int ret, i; |
558 | ||
2240514c MC |
559 | ret = pm_runtime_resume_and_get(common->dev); |
560 | if (ret < 0) | |
93a76530 | 561 | return ret; |
93a76530 GS |
562 | |
563 | /* Notify the stack of the actual queue counts. */ | |
564 | ret = netif_set_real_num_tx_queues(ndev, common->tx_ch_num); | |
565 | if (ret) { | |
566 | dev_err(common->dev, "cannot set real number of tx queues\n"); | |
567 | return ret; | |
568 | } | |
569 | ||
570 | ret = netif_set_real_num_rx_queues(ndev, AM65_CPSW_MAX_RX_QUEUES); | |
571 | if (ret) { | |
572 | dev_err(common->dev, "cannot set real number of rx queues\n"); | |
573 | return ret; | |
574 | } | |
575 | ||
576 | for (i = 0; i < common->tx_ch_num; i++) | |
577 | netdev_tx_reset_queue(netdev_get_tx_queue(ndev, i)); | |
578 | ||
3342a10f | 579 | ret = am65_cpsw_nuss_common_open(common); |
93a76530 GS |
580 | if (ret) |
581 | return ret; | |
582 | ||
583 | common->usage_count++; | |
584 | ||
585 | am65_cpsw_port_set_sl_mac(port, ndev->dev_addr); | |
586 | ||
58356eb3 VR |
587 | if (common->is_emac_mode) |
588 | am65_cpsw_init_port_emac_ale(port); | |
589 | else | |
590 | am65_cpsw_init_port_switch_ale(port); | |
93a76530 GS |
591 | |
592 | /* mac_sl should be configured via phy-link interface */ | |
593 | am65_cpsw_sl_ctl_reset(port); | |
594 | ||
e8609e69 SV |
595 | ret = phylink_of_phy_connect(port->slave.phylink, port->slave.phy_node, 0); |
596 | if (ret) | |
597 | goto error_cleanup; | |
93a76530 | 598 | |
7bcffde0 GS |
599 | /* restore vlan configurations */ |
600 | vlan_for_each(ndev, cpsw_restore_vlans, port); | |
601 | ||
e8609e69 | 602 | phylink_start(port->slave.phylink); |
93a76530 GS |
603 | |
604 | return 0; | |
605 | ||
606 | error_cleanup: | |
607 | am65_cpsw_nuss_ndo_slave_stop(ndev); | |
608 | return ret; | |
609 | } | |
610 | ||
611 | static void am65_cpsw_nuss_rx_cleanup(void *data, dma_addr_t desc_dma) | |
612 | { | |
613 | struct am65_cpsw_rx_chn *rx_chn = data; | |
614 | struct cppi5_host_desc_t *desc_rx; | |
615 | struct sk_buff *skb; | |
616 | dma_addr_t buf_dma; | |
617 | u32 buf_dma_len; | |
618 | void **swdata; | |
619 | ||
620 | desc_rx = k3_cppi_desc_pool_dma2virt(rx_chn->desc_pool, desc_dma); | |
621 | swdata = cppi5_hdesc_get_swdata(desc_rx); | |
622 | skb = *swdata; | |
623 | cppi5_hdesc_get_obuf(desc_rx, &buf_dma, &buf_dma_len); | |
39fd0547 | 624 | k3_udma_glue_rx_cppi5_to_dma_addr(rx_chn->rx_chn, &buf_dma); |
93a76530 | 625 | |
ed569ed9 | 626 | dma_unmap_single(rx_chn->dma_dev, buf_dma, buf_dma_len, DMA_FROM_DEVICE); |
93a76530 GS |
627 | k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); |
628 | ||
629 | dev_kfree_skb_any(skb); | |
630 | } | |
631 | ||
b1f66a5b GS |
632 | static void am65_cpsw_nuss_rx_ts(struct sk_buff *skb, u32 *psdata) |
633 | { | |
634 | struct skb_shared_hwtstamps *ssh; | |
635 | u64 ns; | |
636 | ||
637 | ns = ((u64)psdata[1] << 32) | psdata[0]; | |
638 | ||
639 | ssh = skb_hwtstamps(skb); | |
640 | memset(ssh, 0, sizeof(*ssh)); | |
641 | ssh->hwtstamp = ns_to_ktime(ns); | |
642 | } | |
643 | ||
93a76530 GS |
644 | /* RX psdata[2] word format - checksum information */ |
645 | #define AM65_CPSW_RX_PSD_CSUM_ADD GENMASK(15, 0) | |
646 | #define AM65_CPSW_RX_PSD_CSUM_ERR BIT(16) | |
647 | #define AM65_CPSW_RX_PSD_IS_FRAGMENT BIT(17) | |
648 | #define AM65_CPSW_RX_PSD_IS_TCP BIT(18) | |
649 | #define AM65_CPSW_RX_PSD_IPV6_VALID BIT(19) | |
650 | #define AM65_CPSW_RX_PSD_IPV4_VALID BIT(20) | |
651 | ||
652 | static void am65_cpsw_nuss_rx_csum(struct sk_buff *skb, u32 csum_info) | |
653 | { | |
654 | /* HW can verify IPv4/IPv6 TCP/UDP packets checksum | |
655 | * csum information provides in psdata[2] word: | |
656 | * AM65_CPSW_RX_PSD_CSUM_ERR bit - indicates csum error | |
657 | * AM65_CPSW_RX_PSD_IPV6_VALID and AM65_CPSW_RX_PSD_IPV4_VALID | |
658 | * bits - indicates IPv4/IPv6 packet | |
659 | * AM65_CPSW_RX_PSD_IS_FRAGMENT bit - indicates fragmented packet | |
660 | * AM65_CPSW_RX_PSD_CSUM_ADD has value 0xFFFF for non fragmented packets | |
661 | * or csum value for fragmented packets if !AM65_CPSW_RX_PSD_CSUM_ERR | |
662 | */ | |
663 | skb_checksum_none_assert(skb); | |
664 | ||
665 | if (unlikely(!(skb->dev->features & NETIF_F_RXCSUM))) | |
666 | return; | |
667 | ||
668 | if ((csum_info & (AM65_CPSW_RX_PSD_IPV6_VALID | | |
669 | AM65_CPSW_RX_PSD_IPV4_VALID)) && | |
670 | !(csum_info & AM65_CPSW_RX_PSD_CSUM_ERR)) { | |
671 | /* csum for fragmented packets is unsupported */ | |
672 | if (!(csum_info & AM65_CPSW_RX_PSD_IS_FRAGMENT)) | |
673 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
674 | } | |
675 | } | |
676 | ||
677 | static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_common *common, | |
678 | u32 flow_idx) | |
679 | { | |
680 | struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns; | |
681 | u32 buf_dma_len, pkt_len, port_id = 0, csum_info; | |
682 | struct am65_cpsw_ndev_priv *ndev_priv; | |
683 | struct am65_cpsw_ndev_stats *stats; | |
684 | struct cppi5_host_desc_t *desc_rx; | |
685 | struct device *dev = common->dev; | |
686 | struct sk_buff *skb, *new_skb; | |
687 | dma_addr_t desc_dma, buf_dma; | |
688 | struct am65_cpsw_port *port; | |
689 | struct net_device *ndev; | |
690 | void **swdata; | |
691 | u32 *psdata; | |
692 | int ret = 0; | |
693 | ||
694 | ret = k3_udma_glue_pop_rx_chn(rx_chn->rx_chn, flow_idx, &desc_dma); | |
695 | if (ret) { | |
696 | if (ret != -ENODATA) | |
697 | dev_err(dev, "RX: pop chn fail %d\n", ret); | |
698 | return ret; | |
699 | } | |
700 | ||
6a40e289 | 701 | if (cppi5_desc_is_tdcm(desc_dma)) { |
93a76530 GS |
702 | dev_dbg(dev, "%s RX tdown flow: %u\n", __func__, flow_idx); |
703 | return 0; | |
704 | } | |
705 | ||
706 | desc_rx = k3_cppi_desc_pool_dma2virt(rx_chn->desc_pool, desc_dma); | |
707 | dev_dbg(dev, "%s flow_idx: %u desc %pad\n", | |
708 | __func__, flow_idx, &desc_dma); | |
709 | ||
710 | swdata = cppi5_hdesc_get_swdata(desc_rx); | |
711 | skb = *swdata; | |
712 | cppi5_hdesc_get_obuf(desc_rx, &buf_dma, &buf_dma_len); | |
39fd0547 | 713 | k3_udma_glue_rx_cppi5_to_dma_addr(rx_chn->rx_chn, &buf_dma); |
93a76530 GS |
714 | pkt_len = cppi5_hdesc_get_pktlen(desc_rx); |
715 | cppi5_desc_get_tags_ids(&desc_rx->hdr, &port_id, NULL); | |
716 | dev_dbg(dev, "%s rx port_id:%d\n", __func__, port_id); | |
717 | port = am65_common_get_port(common, port_id); | |
718 | ndev = port->ndev; | |
719 | skb->dev = ndev; | |
720 | ||
721 | psdata = cppi5_hdesc_get_psdata(desc_rx); | |
b1f66a5b GS |
722 | /* add RX timestamp */ |
723 | if (port->rx_ts_enabled) | |
724 | am65_cpsw_nuss_rx_ts(skb, psdata); | |
93a76530 GS |
725 | csum_info = psdata[2]; |
726 | dev_dbg(dev, "%s rx csum_info:%#x\n", __func__, csum_info); | |
727 | ||
ed569ed9 | 728 | dma_unmap_single(rx_chn->dma_dev, buf_dma, buf_dma_len, DMA_FROM_DEVICE); |
93a76530 GS |
729 | |
730 | k3_cppi_desc_pool_free(rx_chn->desc_pool, desc_rx); | |
731 | ||
732 | new_skb = netdev_alloc_skb_ip_align(ndev, AM65_CPSW_MAX_PACKET_SIZE); | |
733 | if (new_skb) { | |
86e8b070 VR |
734 | ndev_priv = netdev_priv(ndev); |
735 | am65_cpsw_nuss_set_offload_fwd_mark(skb, ndev_priv->offload_fwd_mark); | |
93a76530 GS |
736 | skb_put(skb, pkt_len); |
737 | skb->protocol = eth_type_trans(skb, ndev); | |
738 | am65_cpsw_nuss_rx_csum(skb, csum_info); | |
739 | napi_gro_receive(&common->napi_rx, skb); | |
740 | ||
93a76530 GS |
741 | stats = this_cpu_ptr(ndev_priv->stats); |
742 | ||
743 | u64_stats_update_begin(&stats->syncp); | |
744 | stats->rx_packets++; | |
745 | stats->rx_bytes += pkt_len; | |
746 | u64_stats_update_end(&stats->syncp); | |
747 | kmemleak_not_leak(new_skb); | |
748 | } else { | |
749 | ndev->stats.rx_dropped++; | |
750 | new_skb = skb; | |
751 | } | |
752 | ||
753 | if (netif_dormant(ndev)) { | |
754 | dev_kfree_skb_any(new_skb); | |
755 | ndev->stats.rx_dropped++; | |
756 | return 0; | |
757 | } | |
758 | ||
759 | ret = am65_cpsw_nuss_rx_push(common, new_skb); | |
760 | if (WARN_ON(ret < 0)) { | |
761 | dev_kfree_skb_any(new_skb); | |
762 | ndev->stats.rx_errors++; | |
763 | ndev->stats.rx_dropped++; | |
764 | } | |
765 | ||
766 | return ret; | |
767 | } | |
768 | ||
769 | static int am65_cpsw_nuss_rx_poll(struct napi_struct *napi_rx, int budget) | |
770 | { | |
771 | struct am65_cpsw_common *common = am65_cpsw_napi_to_common(napi_rx); | |
772 | int flow = AM65_CPSW_MAX_RX_FLOWS; | |
773 | int cur_budget, ret; | |
774 | int num_rx = 0; | |
775 | ||
776 | /* process every flow */ | |
777 | while (flow--) { | |
778 | cur_budget = budget - num_rx; | |
779 | ||
780 | while (cur_budget--) { | |
781 | ret = am65_cpsw_nuss_rx_packets(common, flow); | |
782 | if (ret) | |
783 | break; | |
784 | num_rx++; | |
785 | } | |
786 | ||
787 | if (num_rx >= budget) | |
788 | break; | |
789 | } | |
790 | ||
791 | dev_dbg(common->dev, "%s num_rx:%d %d\n", __func__, num_rx, budget); | |
792 | ||
47bfc4d1 VR |
793 | if (num_rx < budget && napi_complete_done(napi_rx, num_rx)) { |
794 | if (common->rx_irq_disabled) { | |
795 | common->rx_irq_disabled = false; | |
796 | enable_irq(common->rx_chns.irq); | |
797 | } | |
798 | } | |
93a76530 GS |
799 | |
800 | return num_rx; | |
801 | } | |
802 | ||
803 | static void am65_cpsw_nuss_xmit_free(struct am65_cpsw_tx_chn *tx_chn, | |
93a76530 GS |
804 | struct cppi5_host_desc_t *desc) |
805 | { | |
806 | struct cppi5_host_desc_t *first_desc, *next_desc; | |
807 | dma_addr_t buf_dma, next_desc_dma; | |
808 | u32 buf_dma_len; | |
809 | ||
810 | first_desc = desc; | |
811 | next_desc = first_desc; | |
812 | ||
813 | cppi5_hdesc_get_obuf(first_desc, &buf_dma, &buf_dma_len); | |
39fd0547 | 814 | k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &buf_dma); |
93a76530 | 815 | |
ed569ed9 | 816 | dma_unmap_single(tx_chn->dma_dev, buf_dma, buf_dma_len, DMA_TO_DEVICE); |
93a76530 GS |
817 | |
818 | next_desc_dma = cppi5_hdesc_get_next_hbdesc(first_desc); | |
39fd0547 | 819 | k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &next_desc_dma); |
93a76530 GS |
820 | while (next_desc_dma) { |
821 | next_desc = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, | |
822 | next_desc_dma); | |
823 | cppi5_hdesc_get_obuf(next_desc, &buf_dma, &buf_dma_len); | |
39fd0547 | 824 | k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &buf_dma); |
93a76530 | 825 | |
ed569ed9 | 826 | dma_unmap_page(tx_chn->dma_dev, buf_dma, buf_dma_len, |
93a76530 GS |
827 | DMA_TO_DEVICE); |
828 | ||
829 | next_desc_dma = cppi5_hdesc_get_next_hbdesc(next_desc); | |
39fd0547 | 830 | k3_udma_glue_tx_cppi5_to_dma_addr(tx_chn->tx_chn, &next_desc_dma); |
93a76530 GS |
831 | |
832 | k3_cppi_desc_pool_free(tx_chn->desc_pool, next_desc); | |
833 | } | |
834 | ||
835 | k3_cppi_desc_pool_free(tx_chn->desc_pool, first_desc); | |
836 | } | |
837 | ||
838 | static void am65_cpsw_nuss_tx_cleanup(void *data, dma_addr_t desc_dma) | |
839 | { | |
840 | struct am65_cpsw_tx_chn *tx_chn = data; | |
841 | struct cppi5_host_desc_t *desc_tx; | |
842 | struct sk_buff *skb; | |
843 | void **swdata; | |
844 | ||
845 | desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, desc_dma); | |
846 | swdata = cppi5_hdesc_get_swdata(desc_tx); | |
847 | skb = *(swdata); | |
ed569ed9 | 848 | am65_cpsw_nuss_xmit_free(tx_chn, desc_tx); |
93a76530 GS |
849 | |
850 | dev_kfree_skb_any(skb); | |
851 | } | |
852 | ||
a9e60cf0 GS |
853 | static struct sk_buff * |
854 | am65_cpsw_nuss_tx_compl_packet(struct am65_cpsw_tx_chn *tx_chn, | |
855 | dma_addr_t desc_dma) | |
856 | { | |
857 | struct am65_cpsw_ndev_priv *ndev_priv; | |
858 | struct am65_cpsw_ndev_stats *stats; | |
859 | struct cppi5_host_desc_t *desc_tx; | |
860 | struct net_device *ndev; | |
861 | struct sk_buff *skb; | |
862 | void **swdata; | |
863 | ||
864 | desc_tx = k3_cppi_desc_pool_dma2virt(tx_chn->desc_pool, | |
865 | desc_dma); | |
866 | swdata = cppi5_hdesc_get_swdata(desc_tx); | |
867 | skb = *(swdata); | |
ed569ed9 | 868 | am65_cpsw_nuss_xmit_free(tx_chn, desc_tx); |
a9e60cf0 GS |
869 | |
870 | ndev = skb->dev; | |
871 | ||
872 | am65_cpts_tx_timestamp(tx_chn->common->cpts, skb); | |
873 | ||
874 | ndev_priv = netdev_priv(ndev); | |
875 | stats = this_cpu_ptr(ndev_priv->stats); | |
876 | u64_stats_update_begin(&stats->syncp); | |
877 | stats->tx_packets++; | |
878 | stats->tx_bytes += skb->len; | |
879 | u64_stats_update_end(&stats->syncp); | |
880 | ||
881 | return skb; | |
882 | } | |
883 | ||
884 | static void am65_cpsw_nuss_tx_wake(struct am65_cpsw_tx_chn *tx_chn, struct net_device *ndev, | |
885 | struct netdev_queue *netif_txq) | |
886 | { | |
887 | if (netif_tx_queue_stopped(netif_txq)) { | |
888 | /* Check whether the queue is stopped due to stalled | |
889 | * tx dma, if the queue is stopped then wake the queue | |
890 | * as we have free desc for tx | |
891 | */ | |
892 | __netif_tx_lock(netif_txq, smp_processor_id()); | |
893 | if (netif_running(ndev) && | |
894 | (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >= MAX_SKB_FRAGS)) | |
895 | netif_tx_wake_queue(netif_txq); | |
896 | ||
897 | __netif_tx_unlock(netif_txq); | |
898 | } | |
899 | } | |
900 | ||
93a76530 GS |
901 | static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common, |
902 | int chn, unsigned int budget) | |
903 | { | |
93a76530 GS |
904 | struct device *dev = common->dev; |
905 | struct am65_cpsw_tx_chn *tx_chn; | |
906 | struct netdev_queue *netif_txq; | |
907 | unsigned int total_bytes = 0; | |
908 | struct net_device *ndev; | |
909 | struct sk_buff *skb; | |
910 | dma_addr_t desc_dma; | |
911 | int res, num_tx = 0; | |
93a76530 GS |
912 | |
913 | tx_chn = &common->tx_chns[chn]; | |
914 | ||
915 | while (true) { | |
a9e60cf0 | 916 | spin_lock(&tx_chn->lock); |
93a76530 | 917 | res = k3_udma_glue_pop_tx_chn(tx_chn->tx_chn, &desc_dma); |
a9e60cf0 | 918 | spin_unlock(&tx_chn->lock); |
93a76530 GS |
919 | if (res == -ENODATA) |
920 | break; | |
921 | ||
6a40e289 | 922 | if (cppi5_desc_is_tdcm(desc_dma)) { |
93a76530 GS |
923 | if (atomic_dec_and_test(&common->tdown_cnt)) |
924 | complete(&common->tdown_complete); | |
925 | break; | |
926 | } | |
927 | ||
a9e60cf0 GS |
928 | skb = am65_cpsw_nuss_tx_compl_packet(tx_chn, desc_dma); |
929 | total_bytes = skb->len; | |
93a76530 | 930 | ndev = skb->dev; |
a9e60cf0 GS |
931 | napi_consume_skb(skb, budget); |
932 | num_tx++; | |
93a76530 | 933 | |
a9e60cf0 | 934 | netif_txq = netdev_get_tx_queue(ndev, chn); |
b1f66a5b | 935 | |
a9e60cf0 GS |
936 | netdev_tx_completed_queue(netif_txq, num_tx, total_bytes); |
937 | ||
938 | am65_cpsw_nuss_tx_wake(tx_chn, ndev, netif_txq); | |
939 | } | |
93a76530 | 940 | |
a9e60cf0 GS |
941 | dev_dbg(dev, "%s:%u pkt:%d\n", __func__, chn, num_tx); |
942 | ||
943 | return num_tx; | |
944 | } | |
945 | ||
946 | static int am65_cpsw_nuss_tx_compl_packets_2g(struct am65_cpsw_common *common, | |
947 | int chn, unsigned int budget) | |
948 | { | |
949 | struct device *dev = common->dev; | |
950 | struct am65_cpsw_tx_chn *tx_chn; | |
951 | struct netdev_queue *netif_txq; | |
952 | unsigned int total_bytes = 0; | |
953 | struct net_device *ndev; | |
954 | struct sk_buff *skb; | |
955 | dma_addr_t desc_dma; | |
956 | int res, num_tx = 0; | |
957 | ||
958 | tx_chn = &common->tx_chns[chn]; | |
959 | ||
960 | while (true) { | |
961 | res = k3_udma_glue_pop_tx_chn(tx_chn->tx_chn, &desc_dma); | |
962 | if (res == -ENODATA) | |
963 | break; | |
964 | ||
965 | if (cppi5_desc_is_tdcm(desc_dma)) { | |
966 | if (atomic_dec_and_test(&common->tdown_cnt)) | |
967 | complete(&common->tdown_complete); | |
968 | break; | |
969 | } | |
970 | ||
971 | skb = am65_cpsw_nuss_tx_compl_packet(tx_chn, desc_dma); | |
972 | ||
973 | ndev = skb->dev; | |
93a76530 GS |
974 | total_bytes += skb->len; |
975 | napi_consume_skb(skb, budget); | |
976 | num_tx++; | |
977 | } | |
978 | ||
979 | if (!num_tx) | |
980 | return 0; | |
981 | ||
982 | netif_txq = netdev_get_tx_queue(ndev, chn); | |
983 | ||
984 | netdev_tx_completed_queue(netif_txq, num_tx, total_bytes); | |
985 | ||
a9e60cf0 | 986 | am65_cpsw_nuss_tx_wake(tx_chn, ndev, netif_txq); |
93a76530 | 987 | |
93a76530 GS |
988 | dev_dbg(dev, "%s:%u pkt:%d\n", __func__, chn, num_tx); |
989 | ||
990 | return num_tx; | |
991 | } | |
992 | ||
993 | static int am65_cpsw_nuss_tx_poll(struct napi_struct *napi_tx, int budget) | |
994 | { | |
995 | struct am65_cpsw_tx_chn *tx_chn = am65_cpsw_napi_to_tx_chn(napi_tx); | |
996 | int num_tx; | |
997 | ||
a9e60cf0 GS |
998 | if (AM65_CPSW_IS_CPSW2G(tx_chn->common)) |
999 | num_tx = am65_cpsw_nuss_tx_compl_packets_2g(tx_chn->common, tx_chn->id, budget); | |
1000 | else | |
1001 | num_tx = am65_cpsw_nuss_tx_compl_packets(tx_chn->common, tx_chn->id, budget); | |
1002 | ||
3bacbe04 GS |
1003 | if (num_tx >= budget) |
1004 | return budget; | |
1005 | ||
1006 | if (napi_complete_done(napi_tx, num_tx)) | |
93a76530 | 1007 | enable_irq(tx_chn->irq); |
93a76530 | 1008 | |
3bacbe04 | 1009 | return 0; |
93a76530 GS |
1010 | } |
1011 | ||
1012 | static irqreturn_t am65_cpsw_nuss_rx_irq(int irq, void *dev_id) | |
1013 | { | |
1014 | struct am65_cpsw_common *common = dev_id; | |
1015 | ||
47bfc4d1 | 1016 | common->rx_irq_disabled = true; |
93a76530 GS |
1017 | disable_irq_nosync(irq); |
1018 | napi_schedule(&common->napi_rx); | |
1019 | ||
1020 | return IRQ_HANDLED; | |
1021 | } | |
1022 | ||
1023 | static irqreturn_t am65_cpsw_nuss_tx_irq(int irq, void *dev_id) | |
1024 | { | |
1025 | struct am65_cpsw_tx_chn *tx_chn = dev_id; | |
1026 | ||
1027 | disable_irq_nosync(irq); | |
1028 | napi_schedule(&tx_chn->napi_tx); | |
1029 | ||
1030 | return IRQ_HANDLED; | |
1031 | } | |
1032 | ||
1033 | static netdev_tx_t am65_cpsw_nuss_ndo_slave_xmit(struct sk_buff *skb, | |
1034 | struct net_device *ndev) | |
1035 | { | |
1036 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
1037 | struct cppi5_host_desc_t *first_desc, *next_desc, *cur_desc; | |
1038 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
1039 | struct device *dev = common->dev; | |
1040 | struct am65_cpsw_tx_chn *tx_chn; | |
1041 | struct netdev_queue *netif_txq; | |
1042 | dma_addr_t desc_dma, buf_dma; | |
1043 | int ret, q_idx, i; | |
1044 | void **swdata; | |
1045 | u32 *psdata; | |
1046 | u32 pkt_len; | |
1047 | ||
1048 | /* padding enabled in hw */ | |
1049 | pkt_len = skb_headlen(skb); | |
1050 | ||
b1f66a5b GS |
1051 | /* SKB TX timestamp */ |
1052 | if (port->tx_ts_enabled) | |
1053 | am65_cpts_prep_tx_timestamp(common->cpts, skb); | |
1054 | ||
93a76530 GS |
1055 | q_idx = skb_get_queue_mapping(skb); |
1056 | dev_dbg(dev, "%s skb_queue:%d\n", __func__, q_idx); | |
1057 | ||
1058 | tx_chn = &common->tx_chns[q_idx]; | |
1059 | netif_txq = netdev_get_tx_queue(ndev, q_idx); | |
1060 | ||
1061 | /* Map the linear buffer */ | |
ed569ed9 | 1062 | buf_dma = dma_map_single(tx_chn->dma_dev, skb->data, pkt_len, |
93a76530 | 1063 | DMA_TO_DEVICE); |
ed569ed9 | 1064 | if (unlikely(dma_mapping_error(tx_chn->dma_dev, buf_dma))) { |
93a76530 GS |
1065 | dev_err(dev, "Failed to map tx skb buffer\n"); |
1066 | ndev->stats.tx_errors++; | |
1067 | goto err_free_skb; | |
1068 | } | |
1069 | ||
1070 | first_desc = k3_cppi_desc_pool_alloc(tx_chn->desc_pool); | |
1071 | if (!first_desc) { | |
1072 | dev_dbg(dev, "Failed to allocate descriptor\n"); | |
ed569ed9 PU |
1073 | dma_unmap_single(tx_chn->dma_dev, buf_dma, pkt_len, |
1074 | DMA_TO_DEVICE); | |
93a76530 GS |
1075 | goto busy_stop_q; |
1076 | } | |
1077 | ||
1078 | cppi5_hdesc_init(first_desc, CPPI5_INFO0_HDESC_EPIB_PRESENT, | |
1079 | AM65_CPSW_NAV_PS_DATA_SIZE); | |
1080 | cppi5_desc_set_pktids(&first_desc->hdr, 0, 0x3FFF); | |
1081 | cppi5_hdesc_set_pkttype(first_desc, 0x7); | |
1082 | cppi5_desc_set_tags_ids(&first_desc->hdr, 0, port->port_id); | |
1083 | ||
39fd0547 | 1084 | k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &buf_dma); |
93a76530 GS |
1085 | cppi5_hdesc_attach_buf(first_desc, buf_dma, pkt_len, buf_dma, pkt_len); |
1086 | swdata = cppi5_hdesc_get_swdata(first_desc); | |
1087 | *(swdata) = skb; | |
1088 | psdata = cppi5_hdesc_get_psdata(first_desc); | |
1089 | ||
1090 | /* HW csum offload if enabled */ | |
1091 | psdata[2] = 0; | |
1092 | if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) { | |
1093 | unsigned int cs_start, cs_offset; | |
1094 | ||
1095 | cs_start = skb_transport_offset(skb); | |
1096 | cs_offset = cs_start + skb->csum_offset; | |
1097 | /* HW numerates bytes starting from 1 */ | |
1098 | psdata[2] = ((cs_offset + 1) << 24) | | |
1099 | ((cs_start + 1) << 16) | (skb->len - cs_start); | |
1100 | dev_dbg(dev, "%s tx psdata:%#x\n", __func__, psdata[2]); | |
1101 | } | |
1102 | ||
1103 | if (!skb_is_nonlinear(skb)) | |
1104 | goto done_tx; | |
1105 | ||
1106 | dev_dbg(dev, "fragmented SKB\n"); | |
1107 | ||
1108 | /* Handle the case where skb is fragmented in pages */ | |
1109 | cur_desc = first_desc; | |
1110 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { | |
1111 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; | |
1112 | u32 frag_size = skb_frag_size(frag); | |
1113 | ||
1114 | next_desc = k3_cppi_desc_pool_alloc(tx_chn->desc_pool); | |
1115 | if (!next_desc) { | |
1116 | dev_err(dev, "Failed to allocate descriptor\n"); | |
1117 | goto busy_free_descs; | |
1118 | } | |
1119 | ||
ed569ed9 | 1120 | buf_dma = skb_frag_dma_map(tx_chn->dma_dev, frag, 0, frag_size, |
93a76530 | 1121 | DMA_TO_DEVICE); |
ed569ed9 | 1122 | if (unlikely(dma_mapping_error(tx_chn->dma_dev, buf_dma))) { |
93a76530 GS |
1123 | dev_err(dev, "Failed to map tx skb page\n"); |
1124 | k3_cppi_desc_pool_free(tx_chn->desc_pool, next_desc); | |
1125 | ndev->stats.tx_errors++; | |
1126 | goto err_free_descs; | |
1127 | } | |
1128 | ||
1129 | cppi5_hdesc_reset_hbdesc(next_desc); | |
39fd0547 | 1130 | k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &buf_dma); |
93a76530 GS |
1131 | cppi5_hdesc_attach_buf(next_desc, |
1132 | buf_dma, frag_size, buf_dma, frag_size); | |
1133 | ||
1134 | desc_dma = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, | |
1135 | next_desc); | |
39fd0547 | 1136 | k3_udma_glue_tx_dma_to_cppi5_addr(tx_chn->tx_chn, &desc_dma); |
93a76530 GS |
1137 | cppi5_hdesc_link_hbdesc(cur_desc, desc_dma); |
1138 | ||
1139 | pkt_len += frag_size; | |
1140 | cur_desc = next_desc; | |
1141 | } | |
1142 | WARN_ON(pkt_len != skb->len); | |
1143 | ||
1144 | done_tx: | |
1145 | skb_tx_timestamp(skb); | |
1146 | ||
1147 | /* report bql before sending packet */ | |
1148 | netdev_tx_sent_queue(netif_txq, pkt_len); | |
1149 | ||
1150 | cppi5_hdesc_set_pktlen(first_desc, pkt_len); | |
1151 | desc_dma = k3_cppi_desc_pool_virt2dma(tx_chn->desc_pool, first_desc); | |
a9e60cf0 GS |
1152 | if (AM65_CPSW_IS_CPSW2G(common)) { |
1153 | ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, first_desc, desc_dma); | |
1154 | } else { | |
1155 | spin_lock_bh(&tx_chn->lock); | |
1156 | ret = k3_udma_glue_push_tx_chn(tx_chn->tx_chn, first_desc, desc_dma); | |
1157 | spin_unlock_bh(&tx_chn->lock); | |
1158 | } | |
93a76530 GS |
1159 | if (ret) { |
1160 | dev_err(dev, "can't push desc %d\n", ret); | |
1161 | /* inform bql */ | |
1162 | netdev_tx_completed_queue(netif_txq, 1, pkt_len); | |
1163 | ndev->stats.tx_errors++; | |
1164 | goto err_free_descs; | |
1165 | } | |
1166 | ||
1167 | if (k3_cppi_desc_pool_avail(tx_chn->desc_pool) < MAX_SKB_FRAGS) { | |
1168 | netif_tx_stop_queue(netif_txq); | |
1169 | /* Barrier, so that stop_queue visible to other cpus */ | |
1170 | smp_mb__after_atomic(); | |
1171 | dev_dbg(dev, "netif_tx_stop_queue %d\n", q_idx); | |
1172 | ||
1173 | /* re-check for smp */ | |
1174 | if (k3_cppi_desc_pool_avail(tx_chn->desc_pool) >= | |
1175 | MAX_SKB_FRAGS) { | |
1176 | netif_tx_wake_queue(netif_txq); | |
1177 | dev_dbg(dev, "netif_tx_wake_queue %d\n", q_idx); | |
1178 | } | |
1179 | } | |
1180 | ||
1181 | return NETDEV_TX_OK; | |
1182 | ||
1183 | err_free_descs: | |
ed569ed9 | 1184 | am65_cpsw_nuss_xmit_free(tx_chn, first_desc); |
93a76530 GS |
1185 | err_free_skb: |
1186 | ndev->stats.tx_dropped++; | |
1187 | dev_kfree_skb_any(skb); | |
1188 | return NETDEV_TX_OK; | |
1189 | ||
1190 | busy_free_descs: | |
ed569ed9 | 1191 | am65_cpsw_nuss_xmit_free(tx_chn, first_desc); |
93a76530 GS |
1192 | busy_stop_q: |
1193 | netif_tx_stop_queue(netif_txq); | |
1194 | return NETDEV_TX_BUSY; | |
1195 | } | |
1196 | ||
1197 | static int am65_cpsw_nuss_ndo_slave_set_mac_address(struct net_device *ndev, | |
1198 | void *addr) | |
1199 | { | |
1200 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
1201 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
1202 | struct sockaddr *sockaddr = (struct sockaddr *)addr; | |
1203 | int ret; | |
1204 | ||
1205 | ret = eth_prepare_mac_addr_change(ndev, addr); | |
1206 | if (ret < 0) | |
1207 | return ret; | |
1208 | ||
2240514c MC |
1209 | ret = pm_runtime_resume_and_get(common->dev); |
1210 | if (ret < 0) | |
93a76530 | 1211 | return ret; |
93a76530 GS |
1212 | |
1213 | cpsw_ale_del_ucast(common->ale, ndev->dev_addr, | |
1214 | HOST_PORT_NUM, 0, 0); | |
1215 | cpsw_ale_add_ucast(common->ale, sockaddr->sa_data, | |
1216 | HOST_PORT_NUM, ALE_SECURE, 0); | |
1217 | ||
1218 | am65_cpsw_port_set_sl_mac(port, addr); | |
1219 | eth_commit_mac_addr_change(ndev, sockaddr); | |
1220 | ||
1221 | pm_runtime_put(common->dev); | |
1222 | ||
1223 | return 0; | |
1224 | } | |
1225 | ||
b1f66a5b GS |
1226 | static int am65_cpsw_nuss_hwtstamp_set(struct net_device *ndev, |
1227 | struct ifreq *ifr) | |
1228 | { | |
1229 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
1230 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
1231 | u32 ts_ctrl, seq_id, ts_ctrl_ltype2, ts_vlan_ltype; | |
1232 | struct hwtstamp_config cfg; | |
1233 | ||
1234 | if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) | |
1235 | return -EOPNOTSUPP; | |
1236 | ||
1237 | if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) | |
1238 | return -EFAULT; | |
1239 | ||
1240 | /* TX HW timestamp */ | |
1241 | switch (cfg.tx_type) { | |
1242 | case HWTSTAMP_TX_OFF: | |
1243 | case HWTSTAMP_TX_ON: | |
1244 | break; | |
1245 | default: | |
1246 | return -ERANGE; | |
1247 | } | |
1248 | ||
1249 | switch (cfg.rx_filter) { | |
1250 | case HWTSTAMP_FILTER_NONE: | |
1251 | port->rx_ts_enabled = false; | |
1252 | break; | |
1253 | case HWTSTAMP_FILTER_ALL: | |
1254 | case HWTSTAMP_FILTER_SOME: | |
1255 | case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: | |
1256 | case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: | |
1257 | case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: | |
1258 | case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: | |
1259 | case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: | |
1260 | case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: | |
1261 | case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: | |
1262 | case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: | |
1263 | case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: | |
1264 | case HWTSTAMP_FILTER_PTP_V2_EVENT: | |
1265 | case HWTSTAMP_FILTER_PTP_V2_SYNC: | |
1266 | case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: | |
1267 | case HWTSTAMP_FILTER_NTP_ALL: | |
1268 | port->rx_ts_enabled = true; | |
1269 | cfg.rx_filter = HWTSTAMP_FILTER_ALL; | |
1270 | break; | |
1271 | default: | |
1272 | return -ERANGE; | |
1273 | } | |
1274 | ||
1275 | port->tx_ts_enabled = (cfg.tx_type == HWTSTAMP_TX_ON); | |
1276 | ||
1277 | /* cfg TX timestamp */ | |
1278 | seq_id = (AM65_CPSW_TS_SEQ_ID_OFFSET << | |
1279 | AM65_CPSW_PN_TS_SEQ_ID_OFFSET_SHIFT) | ETH_P_1588; | |
1280 | ||
1281 | ts_vlan_ltype = ETH_P_8021Q; | |
1282 | ||
1283 | ts_ctrl_ltype2 = ETH_P_1588 | | |
1284 | AM65_CPSW_PN_TS_CTL_LTYPE2_TS_107 | | |
1285 | AM65_CPSW_PN_TS_CTL_LTYPE2_TS_129 | | |
1286 | AM65_CPSW_PN_TS_CTL_LTYPE2_TS_130 | | |
1287 | AM65_CPSW_PN_TS_CTL_LTYPE2_TS_131 | | |
1288 | AM65_CPSW_PN_TS_CTL_LTYPE2_TS_132 | | |
1289 | AM65_CPSW_PN_TS_CTL_LTYPE2_TS_319 | | |
1290 | AM65_CPSW_PN_TS_CTL_LTYPE2_TS_320 | | |
1291 | AM65_CPSW_PN_TS_CTL_LTYPE2_TS_TTL_NONZERO; | |
1292 | ||
1293 | ts_ctrl = AM65_CPSW_TS_EVENT_MSG_TYPE_BITS << | |
1294 | AM65_CPSW_PN_TS_CTL_MSG_TYPE_EN_SHIFT; | |
1295 | ||
1296 | if (port->tx_ts_enabled) | |
1297 | ts_ctrl |= AM65_CPSW_TS_TX_ANX_ALL_EN | | |
1298 | AM65_CPSW_PN_TS_CTL_TX_VLAN_LT1_EN; | |
1299 | ||
1300 | writel(seq_id, port->port_base + AM65_CPSW_PORTN_REG_TS_SEQ_LTYPE_REG); | |
1301 | writel(ts_vlan_ltype, port->port_base + | |
1302 | AM65_CPSW_PORTN_REG_TS_VLAN_LTYPE_REG); | |
1303 | writel(ts_ctrl_ltype2, port->port_base + | |
1304 | AM65_CPSW_PORTN_REG_TS_CTL_LTYPE2); | |
1305 | writel(ts_ctrl, port->port_base + AM65_CPSW_PORTN_REG_TS_CTL); | |
1306 | ||
1307 | /* en/dis RX timestamp */ | |
1308 | am65_cpts_rx_enable(common->cpts, port->rx_ts_enabled); | |
1309 | ||
1310 | return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; | |
1311 | } | |
1312 | ||
1313 | static int am65_cpsw_nuss_hwtstamp_get(struct net_device *ndev, | |
1314 | struct ifreq *ifr) | |
1315 | { | |
1316 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
1317 | struct hwtstamp_config cfg; | |
1318 | ||
1319 | if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) | |
1320 | return -EOPNOTSUPP; | |
1321 | ||
1322 | cfg.flags = 0; | |
1323 | cfg.tx_type = port->tx_ts_enabled ? | |
1324 | HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; | |
1325 | cfg.rx_filter = port->rx_ts_enabled ? | |
1326 | HWTSTAMP_FILTER_ALL : HWTSTAMP_FILTER_NONE; | |
1327 | ||
1328 | return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; | |
1329 | } | |
1330 | ||
93a76530 GS |
1331 | static int am65_cpsw_nuss_ndo_slave_ioctl(struct net_device *ndev, |
1332 | struct ifreq *req, int cmd) | |
1333 | { | |
1334 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
1335 | ||
1336 | if (!netif_running(ndev)) | |
1337 | return -EINVAL; | |
1338 | ||
b1f66a5b GS |
1339 | switch (cmd) { |
1340 | case SIOCSHWTSTAMP: | |
1341 | return am65_cpsw_nuss_hwtstamp_set(ndev, req); | |
1342 | case SIOCGHWTSTAMP: | |
1343 | return am65_cpsw_nuss_hwtstamp_get(ndev, req); | |
1344 | } | |
1345 | ||
e8609e69 | 1346 | return phylink_mii_ioctl(port->slave.phylink, req, cmd); |
93a76530 GS |
1347 | } |
1348 | ||
1349 | static void am65_cpsw_nuss_ndo_get_stats(struct net_device *dev, | |
1350 | struct rtnl_link_stats64 *stats) | |
1351 | { | |
1352 | struct am65_cpsw_ndev_priv *ndev_priv = netdev_priv(dev); | |
1353 | unsigned int start; | |
1354 | int cpu; | |
1355 | ||
1356 | for_each_possible_cpu(cpu) { | |
1357 | struct am65_cpsw_ndev_stats *cpu_stats; | |
1358 | u64 rx_packets; | |
1359 | u64 rx_bytes; | |
1360 | u64 tx_packets; | |
1361 | u64 tx_bytes; | |
1362 | ||
1363 | cpu_stats = per_cpu_ptr(ndev_priv->stats, cpu); | |
1364 | do { | |
1365 | start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); | |
1366 | rx_packets = cpu_stats->rx_packets; | |
1367 | rx_bytes = cpu_stats->rx_bytes; | |
1368 | tx_packets = cpu_stats->tx_packets; | |
1369 | tx_bytes = cpu_stats->tx_bytes; | |
1370 | } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); | |
1371 | ||
1372 | stats->rx_packets += rx_packets; | |
1373 | stats->rx_bytes += rx_bytes; | |
1374 | stats->tx_packets += tx_packets; | |
1375 | stats->tx_bytes += tx_bytes; | |
1376 | } | |
1377 | ||
1378 | stats->rx_errors = dev->stats.rx_errors; | |
1379 | stats->rx_dropped = dev->stats.rx_dropped; | |
1380 | stats->tx_dropped = dev->stats.tx_dropped; | |
1381 | } | |
1382 | ||
58356eb3 VR |
1383 | static struct devlink_port *am65_cpsw_ndo_get_devlink_port(struct net_device *ndev) |
1384 | { | |
1385 | struct am65_cpsw_port *port = am65_ndev_to_port(ndev); | |
1386 | ||
1387 | return &port->devlink_port; | |
1388 | } | |
1389 | ||
84b4aa49 | 1390 | static const struct net_device_ops am65_cpsw_nuss_netdev_ops = { |
93a76530 GS |
1391 | .ndo_open = am65_cpsw_nuss_ndo_slave_open, |
1392 | .ndo_stop = am65_cpsw_nuss_ndo_slave_stop, | |
1393 | .ndo_start_xmit = am65_cpsw_nuss_ndo_slave_xmit, | |
1394 | .ndo_set_rx_mode = am65_cpsw_nuss_ndo_slave_set_rx_mode, | |
1395 | .ndo_get_stats64 = am65_cpsw_nuss_ndo_get_stats, | |
1396 | .ndo_validate_addr = eth_validate_addr, | |
1397 | .ndo_set_mac_address = am65_cpsw_nuss_ndo_slave_set_mac_address, | |
1398 | .ndo_tx_timeout = am65_cpsw_nuss_ndo_host_tx_timeout, | |
1399 | .ndo_vlan_rx_add_vid = am65_cpsw_nuss_ndo_slave_add_vid, | |
1400 | .ndo_vlan_rx_kill_vid = am65_cpsw_nuss_ndo_slave_kill_vid, | |
a7605370 | 1401 | .ndo_eth_ioctl = am65_cpsw_nuss_ndo_slave_ioctl, |
8127224c | 1402 | .ndo_setup_tc = am65_cpsw_qos_ndo_setup_tc, |
58356eb3 | 1403 | .ndo_get_devlink_port = am65_cpsw_ndo_get_devlink_port, |
93a76530 GS |
1404 | }; |
1405 | ||
e8609e69 SV |
1406 | static void am65_cpsw_nuss_mac_config(struct phylink_config *config, unsigned int mode, |
1407 | const struct phylink_link_state *state) | |
1408 | { | |
37184fc1 SV |
1409 | struct am65_cpsw_slave_data *slave = container_of(config, struct am65_cpsw_slave_data, |
1410 | phylink_config); | |
1411 | struct am65_cpsw_port *port = container_of(slave, struct am65_cpsw_port, slave); | |
1412 | struct am65_cpsw_common *common = port->common; | |
1413 | ||
1414 | if (common->pdata.extra_modes & BIT(state->interface)) | |
1415 | writel(AM65_CPSW_SGMII_CONTROL_MR_AN_ENABLE, | |
1416 | port->sgmii_base + AM65_CPSW_SGMII_CONTROL_REG); | |
e8609e69 SV |
1417 | } |
1418 | ||
1419 | static void am65_cpsw_nuss_mac_link_down(struct phylink_config *config, unsigned int mode, | |
1420 | phy_interface_t interface) | |
1421 | { | |
1422 | struct am65_cpsw_slave_data *slave = container_of(config, struct am65_cpsw_slave_data, | |
1423 | phylink_config); | |
1424 | struct am65_cpsw_port *port = container_of(slave, struct am65_cpsw_port, slave); | |
1425 | struct am65_cpsw_common *common = port->common; | |
1426 | struct net_device *ndev = port->ndev; | |
1427 | int tmo; | |
1428 | ||
1429 | /* disable forwarding */ | |
1430 | cpsw_ale_control_set(common->ale, port->port_id, ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); | |
1431 | ||
1432 | cpsw_sl_ctl_set(port->slave.mac_sl, CPSW_SL_CTL_CMD_IDLE); | |
1433 | ||
1434 | tmo = cpsw_sl_wait_for_idle(port->slave.mac_sl, 100); | |
1435 | dev_dbg(common->dev, "down msc_sl %08x tmo %d\n", | |
1436 | cpsw_sl_reg_read(port->slave.mac_sl, CPSW_SL_MACSTATUS), tmo); | |
1437 | ||
1438 | cpsw_sl_ctl_reset(port->slave.mac_sl); | |
1439 | ||
1440 | am65_cpsw_qos_link_down(ndev); | |
1441 | netif_tx_stop_all_queues(ndev); | |
1442 | } | |
1443 | ||
1444 | static void am65_cpsw_nuss_mac_link_up(struct phylink_config *config, struct phy_device *phy, | |
1445 | unsigned int mode, phy_interface_t interface, int speed, | |
1446 | int duplex, bool tx_pause, bool rx_pause) | |
1447 | { | |
1448 | struct am65_cpsw_slave_data *slave = container_of(config, struct am65_cpsw_slave_data, | |
1449 | phylink_config); | |
1450 | struct am65_cpsw_port *port = container_of(slave, struct am65_cpsw_port, slave); | |
1451 | struct am65_cpsw_common *common = port->common; | |
1452 | u32 mac_control = CPSW_SL_CTL_GMII_EN; | |
1453 | struct net_device *ndev = port->ndev; | |
1454 | ||
1455 | if (speed == SPEED_1000) | |
1456 | mac_control |= CPSW_SL_CTL_GIG; | |
1457 | if (speed == SPEED_10 && interface == PHY_INTERFACE_MODE_RGMII) | |
1458 | /* Can be used with in band mode only */ | |
1459 | mac_control |= CPSW_SL_CTL_EXT_EN; | |
1460 | if (speed == SPEED_100 && interface == PHY_INTERFACE_MODE_RMII) | |
1461 | mac_control |= CPSW_SL_CTL_IFCTL_A; | |
1462 | if (duplex) | |
1463 | mac_control |= CPSW_SL_CTL_FULLDUPLEX; | |
1464 | ||
1465 | /* rx_pause/tx_pause */ | |
1466 | if (rx_pause) | |
1467 | mac_control |= CPSW_SL_CTL_RX_FLOW_EN; | |
1468 | ||
1469 | if (tx_pause) | |
1470 | mac_control |= CPSW_SL_CTL_TX_FLOW_EN; | |
1471 | ||
1472 | cpsw_sl_ctl_set(port->slave.mac_sl, mac_control); | |
1473 | ||
1474 | /* enable forwarding */ | |
1475 | cpsw_ale_control_set(common->ale, port->port_id, ALE_PORT_STATE, ALE_PORT_STATE_FORWARD); | |
1476 | ||
1477 | am65_cpsw_qos_link_up(ndev, speed); | |
1478 | netif_tx_wake_all_queues(ndev); | |
1479 | } | |
1480 | ||
1481 | static const struct phylink_mac_ops am65_cpsw_phylink_mac_ops = { | |
1482 | .validate = phylink_generic_validate, | |
1483 | .mac_config = am65_cpsw_nuss_mac_config, | |
1484 | .mac_link_down = am65_cpsw_nuss_mac_link_down, | |
1485 | .mac_link_up = am65_cpsw_nuss_mac_link_up, | |
1486 | }; | |
1487 | ||
93a76530 GS |
1488 | static void am65_cpsw_nuss_slave_disable_unused(struct am65_cpsw_port *port) |
1489 | { | |
1490 | struct am65_cpsw_common *common = port->common; | |
1491 | ||
1492 | if (!port->disabled) | |
1493 | return; | |
1494 | ||
93a76530 GS |
1495 | cpsw_ale_control_set(common->ale, port->port_id, |
1496 | ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); | |
1497 | ||
1498 | cpsw_sl_reset(port->slave.mac_sl, 100); | |
1499 | cpsw_sl_ctl_reset(port->slave.mac_sl); | |
1500 | } | |
1501 | ||
1502 | static void am65_cpsw_nuss_free_tx_chns(void *data) | |
1503 | { | |
1504 | struct am65_cpsw_common *common = data; | |
1505 | int i; | |
1506 | ||
1507 | for (i = 0; i < common->tx_ch_num; i++) { | |
1508 | struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; | |
1509 | ||
93a76530 GS |
1510 | if (!IS_ERR_OR_NULL(tx_chn->desc_pool)) |
1511 | k3_cppi_desc_pool_destroy(tx_chn->desc_pool); | |
1512 | ||
ce8eb4c7 VR |
1513 | if (!IS_ERR_OR_NULL(tx_chn->tx_chn)) |
1514 | k3_udma_glue_release_tx_chn(tx_chn->tx_chn); | |
1515 | ||
93a76530 GS |
1516 | memset(tx_chn, 0, sizeof(*tx_chn)); |
1517 | } | |
1518 | } | |
1519 | ||
1520 | void am65_cpsw_nuss_remove_tx_chns(struct am65_cpsw_common *common) | |
1521 | { | |
1522 | struct device *dev = common->dev; | |
1523 | int i; | |
1524 | ||
1525 | devm_remove_action(dev, am65_cpsw_nuss_free_tx_chns, common); | |
1526 | ||
1527 | for (i = 0; i < common->tx_ch_num; i++) { | |
1528 | struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; | |
1529 | ||
1530 | if (tx_chn->irq) | |
1531 | devm_free_irq(dev, tx_chn->irq, tx_chn); | |
1532 | ||
1533 | netif_napi_del(&tx_chn->napi_tx); | |
1534 | ||
93a76530 GS |
1535 | if (!IS_ERR_OR_NULL(tx_chn->desc_pool)) |
1536 | k3_cppi_desc_pool_destroy(tx_chn->desc_pool); | |
1537 | ||
ce8eb4c7 VR |
1538 | if (!IS_ERR_OR_NULL(tx_chn->tx_chn)) |
1539 | k3_udma_glue_release_tx_chn(tx_chn->tx_chn); | |
1540 | ||
93a76530 GS |
1541 | memset(tx_chn, 0, sizeof(*tx_chn)); |
1542 | } | |
1543 | } | |
1544 | ||
1545 | static int am65_cpsw_nuss_init_tx_chns(struct am65_cpsw_common *common) | |
1546 | { | |
1547 | u32 max_desc_num = ALIGN(AM65_CPSW_MAX_TX_DESC, MAX_SKB_FRAGS); | |
1548 | struct k3_udma_glue_tx_channel_cfg tx_cfg = { 0 }; | |
1549 | struct device *dev = common->dev; | |
1550 | struct k3_ring_cfg ring_cfg = { | |
1551 | .elm_size = K3_RINGACC_RING_ELSIZE_8, | |
1552 | .mode = K3_RINGACC_RING_MODE_RING, | |
1553 | .flags = 0 | |
1554 | }; | |
1555 | u32 hdesc_size; | |
1556 | int i, ret = 0; | |
1557 | ||
1558 | hdesc_size = cppi5_hdesc_calc_size(true, AM65_CPSW_NAV_PS_DATA_SIZE, | |
1559 | AM65_CPSW_NAV_SW_DATA_SIZE); | |
1560 | ||
1561 | tx_cfg.swdata_size = AM65_CPSW_NAV_SW_DATA_SIZE; | |
1562 | tx_cfg.tx_cfg = ring_cfg; | |
1563 | tx_cfg.txcq_cfg = ring_cfg; | |
1564 | tx_cfg.tx_cfg.size = max_desc_num; | |
1565 | tx_cfg.txcq_cfg.size = max_desc_num; | |
1566 | ||
1567 | for (i = 0; i < common->tx_ch_num; i++) { | |
1568 | struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; | |
1569 | ||
1570 | snprintf(tx_chn->tx_chn_name, | |
1571 | sizeof(tx_chn->tx_chn_name), "tx%d", i); | |
1572 | ||
a9e60cf0 | 1573 | spin_lock_init(&tx_chn->lock); |
93a76530 GS |
1574 | tx_chn->common = common; |
1575 | tx_chn->id = i; | |
1576 | tx_chn->descs_num = max_desc_num; | |
93a76530 GS |
1577 | |
1578 | tx_chn->tx_chn = | |
1579 | k3_udma_glue_request_tx_chn(dev, | |
1580 | tx_chn->tx_chn_name, | |
1581 | &tx_cfg); | |
1582 | if (IS_ERR(tx_chn->tx_chn)) { | |
8fbc2f9e GS |
1583 | ret = dev_err_probe(dev, PTR_ERR(tx_chn->tx_chn), |
1584 | "Failed to request tx dma channel\n"); | |
93a76530 GS |
1585 | goto err; |
1586 | } | |
ed569ed9 PU |
1587 | tx_chn->dma_dev = k3_udma_glue_tx_get_dma_device(tx_chn->tx_chn); |
1588 | ||
1589 | tx_chn->desc_pool = k3_cppi_desc_pool_create_name(tx_chn->dma_dev, | |
1590 | tx_chn->descs_num, | |
1591 | hdesc_size, | |
1592 | tx_chn->tx_chn_name); | |
1593 | if (IS_ERR(tx_chn->desc_pool)) { | |
1594 | ret = PTR_ERR(tx_chn->desc_pool); | |
1595 | dev_err(dev, "Failed to create poll %d\n", ret); | |
1596 | goto err; | |
1597 | } | |
93a76530 GS |
1598 | |
1599 | tx_chn->irq = k3_udma_glue_tx_get_irq(tx_chn->tx_chn); | |
1600 | if (tx_chn->irq <= 0) { | |
1601 | dev_err(dev, "Failed to get tx dma irq %d\n", | |
1602 | tx_chn->irq); | |
1603 | goto err; | |
1604 | } | |
1605 | ||
1606 | snprintf(tx_chn->tx_chn_name, | |
1607 | sizeof(tx_chn->tx_chn_name), "%s-tx%d", | |
1608 | dev_name(dev), tx_chn->id); | |
1609 | } | |
1610 | ||
1611 | err: | |
1612 | i = devm_add_action(dev, am65_cpsw_nuss_free_tx_chns, common); | |
1613 | if (i) { | |
e6aaeafd | 1614 | dev_err(dev, "Failed to add free_tx_chns action %d\n", i); |
93a76530 GS |
1615 | return i; |
1616 | } | |
1617 | ||
1618 | return ret; | |
1619 | } | |
1620 | ||
1621 | static void am65_cpsw_nuss_free_rx_chns(void *data) | |
1622 | { | |
1623 | struct am65_cpsw_common *common = data; | |
1624 | struct am65_cpsw_rx_chn *rx_chn; | |
1625 | ||
1626 | rx_chn = &common->rx_chns; | |
1627 | ||
93a76530 GS |
1628 | if (!IS_ERR_OR_NULL(rx_chn->desc_pool)) |
1629 | k3_cppi_desc_pool_destroy(rx_chn->desc_pool); | |
ce8eb4c7 VR |
1630 | |
1631 | if (!IS_ERR_OR_NULL(rx_chn->rx_chn)) | |
1632 | k3_udma_glue_release_rx_chn(rx_chn->rx_chn); | |
93a76530 GS |
1633 | } |
1634 | ||
1635 | static int am65_cpsw_nuss_init_rx_chns(struct am65_cpsw_common *common) | |
1636 | { | |
1637 | struct am65_cpsw_rx_chn *rx_chn = &common->rx_chns; | |
1638 | struct k3_udma_glue_rx_channel_cfg rx_cfg = { 0 }; | |
1639 | u32 max_desc_num = AM65_CPSW_MAX_RX_DESC; | |
1640 | struct device *dev = common->dev; | |
1641 | u32 hdesc_size; | |
1642 | u32 fdqring_id; | |
1643 | int i, ret = 0; | |
1644 | ||
1645 | hdesc_size = cppi5_hdesc_calc_size(true, AM65_CPSW_NAV_PS_DATA_SIZE, | |
1646 | AM65_CPSW_NAV_SW_DATA_SIZE); | |
1647 | ||
1648 | rx_cfg.swdata_size = AM65_CPSW_NAV_SW_DATA_SIZE; | |
1649 | rx_cfg.flow_id_num = AM65_CPSW_MAX_RX_FLOWS; | |
1650 | rx_cfg.flow_id_base = common->rx_flow_id_base; | |
1651 | ||
1652 | /* init all flows */ | |
1653 | rx_chn->dev = dev; | |
1654 | rx_chn->descs_num = max_desc_num; | |
93a76530 GS |
1655 | |
1656 | rx_chn->rx_chn = k3_udma_glue_request_rx_chn(dev, "rx", &rx_cfg); | |
1657 | if (IS_ERR(rx_chn->rx_chn)) { | |
8fbc2f9e GS |
1658 | ret = dev_err_probe(dev, PTR_ERR(rx_chn->rx_chn), |
1659 | "Failed to request rx dma channel\n"); | |
93a76530 GS |
1660 | goto err; |
1661 | } | |
ed569ed9 PU |
1662 | rx_chn->dma_dev = k3_udma_glue_rx_get_dma_device(rx_chn->rx_chn); |
1663 | ||
1664 | rx_chn->desc_pool = k3_cppi_desc_pool_create_name(rx_chn->dma_dev, | |
1665 | rx_chn->descs_num, | |
1666 | hdesc_size, "rx"); | |
1667 | if (IS_ERR(rx_chn->desc_pool)) { | |
1668 | ret = PTR_ERR(rx_chn->desc_pool); | |
1669 | dev_err(dev, "Failed to create rx poll %d\n", ret); | |
1670 | goto err; | |
1671 | } | |
93a76530 GS |
1672 | |
1673 | common->rx_flow_id_base = | |
1674 | k3_udma_glue_rx_get_flow_id_base(rx_chn->rx_chn); | |
1675 | dev_info(dev, "set new flow-id-base %u\n", common->rx_flow_id_base); | |
1676 | ||
1677 | fdqring_id = K3_RINGACC_RING_ID_ANY; | |
1678 | for (i = 0; i < rx_cfg.flow_id_num; i++) { | |
1679 | struct k3_ring_cfg rxring_cfg = { | |
1680 | .elm_size = K3_RINGACC_RING_ELSIZE_8, | |
1681 | .mode = K3_RINGACC_RING_MODE_RING, | |
1682 | .flags = 0, | |
1683 | }; | |
1684 | struct k3_ring_cfg fdqring_cfg = { | |
1685 | .elm_size = K3_RINGACC_RING_ELSIZE_8, | |
93a76530 GS |
1686 | .flags = K3_RINGACC_RING_SHARED, |
1687 | }; | |
1688 | struct k3_udma_glue_rx_flow_cfg rx_flow_cfg = { | |
1689 | .rx_cfg = rxring_cfg, | |
1690 | .rxfdq_cfg = fdqring_cfg, | |
1691 | .ring_rxq_id = K3_RINGACC_RING_ID_ANY, | |
1692 | .src_tag_lo_sel = | |
1693 | K3_UDMA_GLUE_SRC_TAG_LO_USE_REMOTE_SRC_TAG, | |
1694 | }; | |
1695 | ||
1696 | rx_flow_cfg.ring_rxfdq0_id = fdqring_id; | |
1697 | rx_flow_cfg.rx_cfg.size = max_desc_num; | |
1698 | rx_flow_cfg.rxfdq_cfg.size = max_desc_num; | |
c6275c02 | 1699 | rx_flow_cfg.rxfdq_cfg.mode = common->pdata.fdqring_mode; |
93a76530 GS |
1700 | |
1701 | ret = k3_udma_glue_rx_flow_init(rx_chn->rx_chn, | |
1702 | i, &rx_flow_cfg); | |
1703 | if (ret) { | |
1704 | dev_err(dev, "Failed to init rx flow%d %d\n", i, ret); | |
1705 | goto err; | |
1706 | } | |
1707 | if (!i) | |
1708 | fdqring_id = | |
1709 | k3_udma_glue_rx_flow_get_fdq_id(rx_chn->rx_chn, | |
1710 | i); | |
1711 | ||
1712 | rx_chn->irq = k3_udma_glue_rx_get_irq(rx_chn->rx_chn, i); | |
1713 | ||
1714 | if (rx_chn->irq <= 0) { | |
1715 | dev_err(dev, "Failed to get rx dma irq %d\n", | |
1716 | rx_chn->irq); | |
1717 | ret = -ENXIO; | |
1718 | goto err; | |
1719 | } | |
1720 | } | |
1721 | ||
1722 | err: | |
1723 | i = devm_add_action(dev, am65_cpsw_nuss_free_rx_chns, common); | |
1724 | if (i) { | |
e6aaeafd | 1725 | dev_err(dev, "Failed to add free_rx_chns action %d\n", i); |
93a76530 GS |
1726 | return i; |
1727 | } | |
1728 | ||
1729 | return ret; | |
1730 | } | |
1731 | ||
1732 | static int am65_cpsw_nuss_init_host_p(struct am65_cpsw_common *common) | |
1733 | { | |
1734 | struct am65_cpsw_host *host_p = am65_common_get_host(common); | |
1735 | ||
1736 | host_p->common = common; | |
1737 | host_p->port_base = common->cpsw_base + AM65_CPSW_NU_PORTS_BASE; | |
1738 | host_p->stat_base = common->cpsw_base + AM65_CPSW_NU_STATS_BASE; | |
1739 | ||
1740 | return 0; | |
1741 | } | |
1742 | ||
1743 | static int am65_cpsw_am654_get_efuse_macid(struct device_node *of_node, | |
1744 | int slave, u8 *mac_addr) | |
1745 | { | |
1746 | u32 mac_lo, mac_hi, offset; | |
1747 | struct regmap *syscon; | |
1748 | int ret; | |
1749 | ||
1750 | syscon = syscon_regmap_lookup_by_phandle(of_node, "ti,syscon-efuse"); | |
1751 | if (IS_ERR(syscon)) { | |
1752 | if (PTR_ERR(syscon) == -ENODEV) | |
1753 | return 0; | |
1754 | return PTR_ERR(syscon); | |
1755 | } | |
1756 | ||
1757 | ret = of_property_read_u32_index(of_node, "ti,syscon-efuse", 1, | |
1758 | &offset); | |
1759 | if (ret) | |
1760 | return ret; | |
1761 | ||
1762 | regmap_read(syscon, offset, &mac_lo); | |
1763 | regmap_read(syscon, offset + 4, &mac_hi); | |
1764 | ||
1765 | mac_addr[0] = (mac_hi >> 8) & 0xff; | |
1766 | mac_addr[1] = mac_hi & 0xff; | |
1767 | mac_addr[2] = (mac_lo >> 24) & 0xff; | |
1768 | mac_addr[3] = (mac_lo >> 16) & 0xff; | |
1769 | mac_addr[4] = (mac_lo >> 8) & 0xff; | |
1770 | mac_addr[5] = mac_lo & 0xff; | |
1771 | ||
1772 | return 0; | |
1773 | } | |
1774 | ||
b1f66a5b GS |
1775 | static int am65_cpsw_init_cpts(struct am65_cpsw_common *common) |
1776 | { | |
1777 | struct device *dev = common->dev; | |
1778 | struct device_node *node; | |
1779 | struct am65_cpts *cpts; | |
1780 | void __iomem *reg_base; | |
1781 | ||
1782 | if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)) | |
1783 | return 0; | |
1784 | ||
1785 | node = of_get_child_by_name(dev->of_node, "cpts"); | |
1786 | if (!node) { | |
1787 | dev_err(dev, "%s cpts not found\n", __func__); | |
1788 | return -ENOENT; | |
1789 | } | |
1790 | ||
1791 | reg_base = common->cpsw_base + AM65_CPSW_NU_CPTS_BASE; | |
1792 | cpts = am65_cpts_create(dev, reg_base, node); | |
1793 | if (IS_ERR(cpts)) { | |
1794 | int ret = PTR_ERR(cpts); | |
1795 | ||
5dd89d2f | 1796 | of_node_put(node); |
b1f66a5b GS |
1797 | if (ret == -EOPNOTSUPP) { |
1798 | dev_info(dev, "cpts disabled\n"); | |
1799 | return 0; | |
1800 | } | |
1801 | ||
1802 | dev_err(dev, "cpts create err %d\n", ret); | |
1803 | return ret; | |
1804 | } | |
1805 | common->cpts = cpts; | |
a9c74700 GS |
1806 | /* Forbid PM runtime if CPTS is running. |
1807 | * K3 CPSWxG modules may completely lose context during ON->OFF | |
1808 | * transitions depending on integration. | |
1809 | * AM65x/J721E MCU CPSW2G: false | |
1810 | * J721E MAIN_CPSW9G: true | |
1811 | */ | |
1812 | pm_runtime_forbid(dev); | |
b1f66a5b GS |
1813 | |
1814 | return 0; | |
1815 | } | |
1816 | ||
93a76530 GS |
1817 | static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) |
1818 | { | |
1819 | struct device_node *node, *port_np; | |
1820 | struct device *dev = common->dev; | |
1821 | int ret; | |
1822 | ||
1823 | node = of_get_child_by_name(dev->of_node, "ethernet-ports"); | |
1824 | if (!node) | |
1825 | return -ENOENT; | |
1826 | ||
1827 | for_each_child_of_node(node, port_np) { | |
1828 | struct am65_cpsw_port *port; | |
93a76530 GS |
1829 | u32 port_id; |
1830 | ||
1831 | /* it is not a slave port node, continue */ | |
1832 | if (strcmp(port_np->name, "port")) | |
1833 | continue; | |
1834 | ||
1835 | ret = of_property_read_u32(port_np, "reg", &port_id); | |
1836 | if (ret < 0) { | |
1837 | dev_err(dev, "%pOF error reading port_id %d\n", | |
1838 | port_np, ret); | |
be565ec7 | 1839 | goto of_node_put; |
93a76530 GS |
1840 | } |
1841 | ||
1842 | if (!port_id || port_id > common->port_num) { | |
1843 | dev_err(dev, "%pOF has invalid port_id %u %s\n", | |
1844 | port_np, port_id, port_np->name); | |
be565ec7 WQ |
1845 | ret = -EINVAL; |
1846 | goto of_node_put; | |
93a76530 GS |
1847 | } |
1848 | ||
1849 | port = am65_common_get_port(common, port_id); | |
1850 | port->port_id = port_id; | |
1851 | port->common = common; | |
1852 | port->port_base = common->cpsw_base + AM65_CPSW_NU_PORTS_BASE + | |
1853 | AM65_CPSW_NU_PORTS_OFFSET * (port_id); | |
37184fc1 SV |
1854 | if (common->pdata.extra_modes) |
1855 | port->sgmii_base = common->ss_base + AM65_CPSW_SGMII_BASE * (port_id); | |
93a76530 GS |
1856 | port->stat_base = common->cpsw_base + AM65_CPSW_NU_STATS_BASE + |
1857 | (AM65_CPSW_NU_STATS_PORT_OFFSET * port_id); | |
1858 | port->name = of_get_property(port_np, "label", NULL); | |
8127224c IK |
1859 | port->fetch_ram_base = |
1860 | common->cpsw_base + AM65_CPSW_NU_FRAM_BASE + | |
1861 | (AM65_CPSW_NU_FRAM_PORT_OFFSET * (port_id - 1)); | |
93a76530 | 1862 | |
d6d0aeaf | 1863 | port->slave.mac_sl = cpsw_sl_get("am65", dev, port->port_base); |
be565ec7 WQ |
1864 | if (IS_ERR(port->slave.mac_sl)) { |
1865 | ret = PTR_ERR(port->slave.mac_sl); | |
1866 | goto of_node_put; | |
1867 | } | |
d6d0aeaf | 1868 | |
93a76530 | 1869 | port->disabled = !of_device_is_available(port_np); |
84b4aa49 GS |
1870 | if (port->disabled) { |
1871 | common->disabled_ports_mask |= BIT(port->port_id); | |
93a76530 | 1872 | continue; |
84b4aa49 | 1873 | } |
93a76530 GS |
1874 | |
1875 | port->slave.ifphy = devm_of_phy_get(dev, port_np, NULL); | |
1876 | if (IS_ERR(port->slave.ifphy)) { | |
1877 | ret = PTR_ERR(port->slave.ifphy); | |
1878 | dev_err(dev, "%pOF error retrieving port phy: %d\n", | |
1879 | port_np, ret); | |
be565ec7 | 1880 | goto of_node_put; |
93a76530 GS |
1881 | } |
1882 | ||
1883 | port->slave.mac_only = | |
1884 | of_property_read_bool(port_np, "ti,mac-only"); | |
1885 | ||
1886 | /* get phy/link info */ | |
e8609e69 | 1887 | port->slave.phy_node = port_np; |
93a76530 GS |
1888 | ret = of_get_phy_mode(port_np, &port->slave.phy_if); |
1889 | if (ret) { | |
1890 | dev_err(dev, "%pOF read phy-mode err %d\n", | |
1891 | port_np, ret); | |
be565ec7 | 1892 | goto of_node_put; |
93a76530 GS |
1893 | } |
1894 | ||
763015a7 SV |
1895 | ret = phy_set_mode_ext(port->slave.ifphy, PHY_MODE_ETHERNET, port->slave.phy_if); |
1896 | if (ret) | |
1897 | goto of_node_put; | |
1898 | ||
83216e39 MW |
1899 | ret = of_get_mac_address(port_np, port->slave.mac_addr); |
1900 | if (ret) { | |
1901 | am65_cpsw_am654_get_efuse_macid(port_np, | |
1902 | port->port_id, | |
1903 | port->slave.mac_addr); | |
1904 | if (!is_valid_ether_addr(port->slave.mac_addr)) { | |
ba530fea | 1905 | eth_random_addr(port->slave.mac_addr); |
83216e39 MW |
1906 | dev_err(dev, "Use random MAC address\n"); |
1907 | } | |
93a76530 GS |
1908 | } |
1909 | } | |
1910 | of_node_put(node); | |
1911 | ||
84b4aa49 GS |
1912 | /* is there at least one ext.port */ |
1913 | if (!(~common->disabled_ports_mask & GENMASK(common->port_num, 1))) { | |
1914 | dev_err(dev, "No Ext. port are available\n"); | |
1915 | return -ENODEV; | |
1916 | } | |
1917 | ||
93a76530 | 1918 | return 0; |
be565ec7 WQ |
1919 | |
1920 | of_node_put: | |
1921 | of_node_put(port_np); | |
1922 | of_node_put(node); | |
1923 | return ret; | |
93a76530 GS |
1924 | } |
1925 | ||
1926 | static void am65_cpsw_pcpu_stats_free(void *data) | |
1927 | { | |
1928 | struct am65_cpsw_ndev_stats __percpu *stats = data; | |
1929 | ||
1930 | free_percpu(stats); | |
1931 | } | |
1932 | ||
e8609e69 SV |
1933 | static void am65_cpsw_nuss_phylink_cleanup(struct am65_cpsw_common *common) |
1934 | { | |
1935 | struct am65_cpsw_port *port; | |
1936 | int i; | |
1937 | ||
1938 | for (i = 0; i < common->port_num; i++) { | |
1939 | port = &common->ports[i]; | |
1940 | if (port->slave.phylink) | |
1941 | phylink_destroy(port->slave.phylink); | |
1942 | } | |
1943 | } | |
1944 | ||
84b4aa49 GS |
1945 | static int |
1946 | am65_cpsw_nuss_init_port_ndev(struct am65_cpsw_common *common, u32 port_idx) | |
93a76530 GS |
1947 | { |
1948 | struct am65_cpsw_ndev_priv *ndev_priv; | |
1949 | struct device *dev = common->dev; | |
1950 | struct am65_cpsw_port *port; | |
e8609e69 | 1951 | struct phylink *phylink; |
93a76530 GS |
1952 | int ret; |
1953 | ||
84b4aa49 GS |
1954 | port = &common->ports[port_idx]; |
1955 | ||
1956 | if (port->disabled) | |
1957 | return 0; | |
93a76530 GS |
1958 | |
1959 | /* alloc netdev */ | |
1960 | port->ndev = devm_alloc_etherdev_mqs(common->dev, | |
1961 | sizeof(struct am65_cpsw_ndev_priv), | |
1962 | AM65_CPSW_MAX_TX_QUEUES, | |
1963 | AM65_CPSW_MAX_RX_QUEUES); | |
1964 | if (!port->ndev) { | |
1965 | dev_err(dev, "error allocating slave net_device %u\n", | |
1966 | port->port_id); | |
1967 | return -ENOMEM; | |
1968 | } | |
1969 | ||
1970 | ndev_priv = netdev_priv(port->ndev); | |
1971 | ndev_priv->port = port; | |
1972 | ndev_priv->msg_enable = AM65_CPSW_DEBUG; | |
1973 | SET_NETDEV_DEV(port->ndev, dev); | |
1974 | ||
f3956ebb | 1975 | eth_hw_addr_set(port->ndev, port->slave.mac_addr); |
93a76530 GS |
1976 | |
1977 | port->ndev->min_mtu = AM65_CPSW_MIN_PACKET_SIZE; | |
1978 | port->ndev->max_mtu = AM65_CPSW_MAX_PACKET_SIZE; | |
1979 | port->ndev->hw_features = NETIF_F_SG | | |
1980 | NETIF_F_RXCSUM | | |
2c4dc314 MK |
1981 | NETIF_F_HW_CSUM | |
1982 | NETIF_F_HW_TC; | |
93a76530 GS |
1983 | port->ndev->features = port->ndev->hw_features | |
1984 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
1985 | port->ndev->vlan_features |= NETIF_F_SG; | |
84b4aa49 | 1986 | port->ndev->netdev_ops = &am65_cpsw_nuss_netdev_ops; |
93a76530 GS |
1987 | port->ndev->ethtool_ops = &am65_cpsw_ethtool_ops_slave; |
1988 | ||
e8609e69 SV |
1989 | /* Configuring Phylink */ |
1990 | port->slave.phylink_config.dev = &port->ndev->dev; | |
1991 | port->slave.phylink_config.type = PHYLINK_NETDEV; | |
1992 | port->slave.phylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_10 | MAC_100 | MAC_1000FD; | |
1993 | ||
37184fc1 SV |
1994 | if (phy_interface_mode_is_rgmii(port->slave.phy_if)) { |
1995 | phy_interface_set_rgmii(port->slave.phylink_config.supported_interfaces); | |
1996 | } else if (port->slave.phy_if == PHY_INTERFACE_MODE_RMII) { | |
1997 | __set_bit(PHY_INTERFACE_MODE_RMII, | |
1998 | port->slave.phylink_config.supported_interfaces); | |
1999 | } else if (common->pdata.extra_modes & BIT(port->slave.phy_if)) { | |
2000 | __set_bit(PHY_INTERFACE_MODE_QSGMII, | |
2001 | port->slave.phylink_config.supported_interfaces); | |
2002 | } else { | |
2003 | dev_err(dev, "selected phy-mode is not supported\n"); | |
2004 | return -EOPNOTSUPP; | |
2005 | } | |
e8609e69 | 2006 | |
0b718007 SV |
2007 | phylink = phylink_create(&port->slave.phylink_config, |
2008 | of_node_to_fwnode(port->slave.phy_node), | |
2009 | port->slave.phy_if, | |
e8609e69 SV |
2010 | &am65_cpsw_phylink_mac_ops); |
2011 | if (IS_ERR(phylink)) | |
2012 | return PTR_ERR(phylink); | |
2013 | ||
2014 | port->slave.phylink = phylink; | |
2015 | ||
93a76530 | 2016 | /* Disable TX checksum offload by default due to HW bug */ |
38389aa6 | 2017 | if (common->pdata.quirks & AM65_CPSW_QUIRK_I2027_NO_TX_CSUM) |
93a76530 GS |
2018 | port->ndev->features &= ~NETIF_F_HW_CSUM; |
2019 | ||
2020 | ndev_priv->stats = netdev_alloc_pcpu_stats(struct am65_cpsw_ndev_stats); | |
2021 | if (!ndev_priv->stats) | |
2022 | return -ENOMEM; | |
2023 | ||
2024 | ret = devm_add_action_or_reset(dev, am65_cpsw_pcpu_stats_free, | |
2025 | ndev_priv->stats); | |
84b4aa49 GS |
2026 | if (ret) |
2027 | dev_err(dev, "failed to add percpu stat free action %d\n", ret); | |
2028 | ||
2029 | if (!common->dma_ndev) | |
2030 | common->dma_ndev = port->ndev; | |
2031 | ||
2032 | return ret; | |
2033 | } | |
2034 | ||
2035 | static int am65_cpsw_nuss_init_ndevs(struct am65_cpsw_common *common) | |
2036 | { | |
2037 | int ret; | |
2038 | int i; | |
2039 | ||
2040 | for (i = 0; i < common->port_num; i++) { | |
2041 | ret = am65_cpsw_nuss_init_port_ndev(common, i); | |
2042 | if (ret) | |
2043 | return ret; | |
93a76530 GS |
2044 | } |
2045 | ||
84b4aa49 | 2046 | netif_napi_add(common->dma_ndev, &common->napi_rx, |
b48b89f9 | 2047 | am65_cpsw_nuss_rx_poll); |
93a76530 | 2048 | |
93a76530 GS |
2049 | return ret; |
2050 | } | |
2051 | ||
84b4aa49 | 2052 | static int am65_cpsw_nuss_ndev_add_tx_napi(struct am65_cpsw_common *common) |
93a76530 GS |
2053 | { |
2054 | struct device *dev = common->dev; | |
93a76530 GS |
2055 | int i, ret = 0; |
2056 | ||
93a76530 GS |
2057 | for (i = 0; i < common->tx_ch_num; i++) { |
2058 | struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i]; | |
2059 | ||
16d083e2 JK |
2060 | netif_napi_add_tx(common->dma_ndev, &tx_chn->napi_tx, |
2061 | am65_cpsw_nuss_tx_poll); | |
93a76530 GS |
2062 | |
2063 | ret = devm_request_irq(dev, tx_chn->irq, | |
2064 | am65_cpsw_nuss_tx_irq, | |
6f5c27f9 GS |
2065 | IRQF_TRIGGER_HIGH, |
2066 | tx_chn->tx_chn_name, tx_chn); | |
93a76530 GS |
2067 | if (ret) { |
2068 | dev_err(dev, "failure requesting tx%u irq %u, %d\n", | |
2069 | tx_chn->id, tx_chn->irq, ret); | |
2070 | goto err; | |
2071 | } | |
2072 | } | |
2073 | ||
2074 | err: | |
2075 | return ret; | |
2076 | } | |
2077 | ||
84b4aa49 GS |
2078 | static void am65_cpsw_nuss_cleanup_ndev(struct am65_cpsw_common *common) |
2079 | { | |
2080 | struct am65_cpsw_port *port; | |
2081 | int i; | |
2082 | ||
2083 | for (i = 0; i < common->port_num; i++) { | |
2084 | port = &common->ports[i]; | |
2085 | if (port->ndev) | |
2086 | unregister_netdev(port->ndev); | |
2087 | } | |
2088 | } | |
2089 | ||
2934db9b VR |
2090 | static void am65_cpsw_port_offload_fwd_mark_update(struct am65_cpsw_common *common) |
2091 | { | |
2092 | int set_val = 0; | |
2093 | int i; | |
2094 | ||
2095 | if (common->br_members == (GENMASK(common->port_num, 1) & ~common->disabled_ports_mask)) | |
2096 | set_val = 1; | |
2097 | ||
2098 | dev_dbg(common->dev, "set offload_fwd_mark %d\n", set_val); | |
2099 | ||
2100 | for (i = 1; i <= common->port_num; i++) { | |
2101 | struct am65_cpsw_port *port = am65_common_get_port(common, i); | |
ae03d189 | 2102 | struct am65_cpsw_ndev_priv *priv; |
2934db9b | 2103 | |
ae03d189 GS |
2104 | if (!port->ndev) |
2105 | continue; | |
2106 | ||
2107 | priv = am65_ndev_to_priv(port->ndev); | |
2934db9b VR |
2108 | priv->offload_fwd_mark = set_val; |
2109 | } | |
2110 | } | |
2111 | ||
2112 | bool am65_cpsw_port_dev_check(const struct net_device *ndev) | |
2113 | { | |
2114 | if (ndev->netdev_ops == &am65_cpsw_nuss_netdev_ops) { | |
2115 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
2116 | ||
2117 | return !common->is_emac_mode; | |
2118 | } | |
2119 | ||
2120 | return false; | |
2121 | } | |
2122 | ||
2f5dc00f VO |
2123 | static int am65_cpsw_netdevice_port_link(struct net_device *ndev, |
2124 | struct net_device *br_ndev, | |
2125 | struct netlink_ext_ack *extack) | |
2934db9b VR |
2126 | { |
2127 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
2128 | struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev); | |
2f5dc00f | 2129 | int err; |
2934db9b VR |
2130 | |
2131 | if (!common->br_members) { | |
2132 | common->hw_bridge_dev = br_ndev; | |
2133 | } else { | |
2134 | /* This is adding the port to a second bridge, this is | |
2135 | * unsupported | |
2136 | */ | |
2137 | if (common->hw_bridge_dev != br_ndev) | |
2138 | return -EOPNOTSUPP; | |
2139 | } | |
2140 | ||
4e51bf44 | 2141 | err = switchdev_bridge_port_offload(ndev, ndev, NULL, NULL, NULL, |
47211192 | 2142 | false, extack); |
2f5dc00f VO |
2143 | if (err) |
2144 | return err; | |
2145 | ||
2934db9b VR |
2146 | common->br_members |= BIT(priv->port->port_id); |
2147 | ||
2148 | am65_cpsw_port_offload_fwd_mark_update(common); | |
2149 | ||
2150 | return NOTIFY_DONE; | |
2151 | } | |
2152 | ||
2153 | static void am65_cpsw_netdevice_port_unlink(struct net_device *ndev) | |
2154 | { | |
2155 | struct am65_cpsw_common *common = am65_ndev_to_common(ndev); | |
2156 | struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev); | |
2157 | ||
4e51bf44 | 2158 | switchdev_bridge_port_unoffload(ndev, NULL, NULL, NULL); |
2f5dc00f | 2159 | |
2934db9b VR |
2160 | common->br_members &= ~BIT(priv->port->port_id); |
2161 | ||
2162 | am65_cpsw_port_offload_fwd_mark_update(common); | |
2163 | ||
2164 | if (!common->br_members) | |
2165 | common->hw_bridge_dev = NULL; | |
2166 | } | |
2167 | ||
2168 | /* netdev notifier */ | |
2169 | static int am65_cpsw_netdevice_event(struct notifier_block *unused, | |
2170 | unsigned long event, void *ptr) | |
2171 | { | |
2f5dc00f | 2172 | struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr); |
2934db9b VR |
2173 | struct net_device *ndev = netdev_notifier_info_to_dev(ptr); |
2174 | struct netdev_notifier_changeupper_info *info; | |
2175 | int ret = NOTIFY_DONE; | |
2176 | ||
2177 | if (!am65_cpsw_port_dev_check(ndev)) | |
2178 | return NOTIFY_DONE; | |
2179 | ||
2180 | switch (event) { | |
2181 | case NETDEV_CHANGEUPPER: | |
2182 | info = ptr; | |
2183 | ||
2184 | if (netif_is_bridge_master(info->upper_dev)) { | |
2185 | if (info->linking) | |
2f5dc00f VO |
2186 | ret = am65_cpsw_netdevice_port_link(ndev, |
2187 | info->upper_dev, | |
2188 | extack); | |
2934db9b VR |
2189 | else |
2190 | am65_cpsw_netdevice_port_unlink(ndev); | |
2191 | } | |
2192 | break; | |
2193 | default: | |
2194 | return NOTIFY_DONE; | |
2195 | } | |
2196 | ||
2197 | return notifier_from_errno(ret); | |
2198 | } | |
2199 | ||
2200 | static int am65_cpsw_register_notifiers(struct am65_cpsw_common *cpsw) | |
2201 | { | |
2202 | int ret = 0; | |
2203 | ||
2204 | if (AM65_CPSW_IS_CPSW2G(cpsw) || | |
2205 | !IS_REACHABLE(CONFIG_TI_K3_AM65_CPSW_SWITCHDEV)) | |
2206 | return 0; | |
2207 | ||
2208 | cpsw->am65_cpsw_netdevice_nb.notifier_call = &am65_cpsw_netdevice_event; | |
2209 | ret = register_netdevice_notifier(&cpsw->am65_cpsw_netdevice_nb); | |
2210 | if (ret) { | |
2211 | dev_err(cpsw->dev, "can't register netdevice notifier\n"); | |
2212 | return ret; | |
2213 | } | |
2214 | ||
86e8b070 VR |
2215 | ret = am65_cpsw_switchdev_register_notifiers(cpsw); |
2216 | if (ret) | |
2217 | unregister_netdevice_notifier(&cpsw->am65_cpsw_netdevice_nb); | |
2218 | ||
2934db9b VR |
2219 | return ret; |
2220 | } | |
2221 | ||
2222 | static void am65_cpsw_unregister_notifiers(struct am65_cpsw_common *cpsw) | |
2223 | { | |
2224 | if (AM65_CPSW_IS_CPSW2G(cpsw) || | |
2225 | !IS_REACHABLE(CONFIG_TI_K3_AM65_CPSW_SWITCHDEV)) | |
2226 | return; | |
2227 | ||
86e8b070 | 2228 | am65_cpsw_switchdev_unregister_notifiers(cpsw); |
2934db9b VR |
2229 | unregister_netdevice_notifier(&cpsw->am65_cpsw_netdevice_nb); |
2230 | } | |
2231 | ||
58356eb3 VR |
2232 | static const struct devlink_ops am65_cpsw_devlink_ops = {}; |
2233 | ||
2234 | static void am65_cpsw_init_stp_ale_entry(struct am65_cpsw_common *cpsw) | |
2235 | { | |
2236 | cpsw_ale_add_mcast(cpsw->ale, eth_stp_addr, ALE_PORT_HOST, ALE_SUPER, 0, | |
2237 | ALE_MCAST_BLOCK_LEARN_FWD); | |
2238 | } | |
2239 | ||
2240 | static void am65_cpsw_init_host_port_switch(struct am65_cpsw_common *common) | |
2241 | { | |
2242 | struct am65_cpsw_host *host = am65_common_get_host(common); | |
2243 | ||
2244 | writel(common->default_vlan, host->port_base + AM65_CPSW_PORT_VLAN_REG_OFFSET); | |
2245 | ||
2246 | am65_cpsw_init_stp_ale_entry(common); | |
2247 | ||
2248 | cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_P0_UNI_FLOOD, 1); | |
2249 | dev_dbg(common->dev, "Set P0_UNI_FLOOD\n"); | |
2250 | cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_PORT_NOLEARN, 0); | |
2251 | } | |
2252 | ||
2253 | static void am65_cpsw_init_host_port_emac(struct am65_cpsw_common *common) | |
2254 | { | |
2255 | struct am65_cpsw_host *host = am65_common_get_host(common); | |
2256 | ||
2257 | writel(0, host->port_base + AM65_CPSW_PORT_VLAN_REG_OFFSET); | |
2258 | ||
2259 | cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_P0_UNI_FLOOD, 0); | |
2260 | dev_dbg(common->dev, "unset P0_UNI_FLOOD\n"); | |
2261 | ||
2262 | /* learning make no sense in multi-mac mode */ | |
2263 | cpsw_ale_control_set(common->ale, HOST_PORT_NUM, ALE_PORT_NOLEARN, 1); | |
2264 | } | |
2265 | ||
2266 | static int am65_cpsw_dl_switch_mode_get(struct devlink *dl, u32 id, | |
2267 | struct devlink_param_gset_ctx *ctx) | |
2268 | { | |
2269 | struct am65_cpsw_devlink *dl_priv = devlink_priv(dl); | |
2270 | struct am65_cpsw_common *common = dl_priv->common; | |
2271 | ||
2272 | dev_dbg(common->dev, "%s id:%u\n", __func__, id); | |
2273 | ||
2274 | if (id != AM65_CPSW_DL_PARAM_SWITCH_MODE) | |
2275 | return -EOPNOTSUPP; | |
2276 | ||
2277 | ctx->val.vbool = !common->is_emac_mode; | |
2278 | ||
2279 | return 0; | |
2280 | } | |
2281 | ||
2282 | static void am65_cpsw_init_port_emac_ale(struct am65_cpsw_port *port) | |
2283 | { | |
2284 | struct am65_cpsw_slave_data *slave = &port->slave; | |
2285 | struct am65_cpsw_common *common = port->common; | |
2286 | u32 port_mask; | |
2287 | ||
2288 | writel(slave->port_vlan, port->port_base + AM65_CPSW_PORT_VLAN_REG_OFFSET); | |
2289 | ||
2290 | if (slave->mac_only) | |
2291 | /* enable mac-only mode on port */ | |
2292 | cpsw_ale_control_set(common->ale, port->port_id, | |
2293 | ALE_PORT_MACONLY, 1); | |
2294 | ||
2295 | cpsw_ale_control_set(common->ale, port->port_id, ALE_PORT_NOLEARN, 1); | |
2296 | ||
2297 | port_mask = BIT(port->port_id) | ALE_PORT_HOST; | |
2298 | ||
2299 | cpsw_ale_add_ucast(common->ale, port->ndev->dev_addr, | |
2300 | HOST_PORT_NUM, ALE_SECURE, slave->port_vlan); | |
2301 | cpsw_ale_add_mcast(common->ale, port->ndev->broadcast, | |
2302 | port_mask, ALE_VLAN, slave->port_vlan, ALE_MCAST_FWD_2); | |
2303 | } | |
2304 | ||
2305 | static void am65_cpsw_init_port_switch_ale(struct am65_cpsw_port *port) | |
2306 | { | |
2307 | struct am65_cpsw_slave_data *slave = &port->slave; | |
2308 | struct am65_cpsw_common *cpsw = port->common; | |
2309 | u32 port_mask; | |
2310 | ||
2311 | cpsw_ale_control_set(cpsw->ale, port->port_id, | |
2312 | ALE_PORT_NOLEARN, 0); | |
2313 | ||
2314 | cpsw_ale_add_ucast(cpsw->ale, port->ndev->dev_addr, | |
2315 | HOST_PORT_NUM, ALE_SECURE | ALE_BLOCKED | ALE_VLAN, | |
2316 | slave->port_vlan); | |
2317 | ||
2318 | port_mask = BIT(port->port_id) | ALE_PORT_HOST; | |
2319 | ||
2320 | cpsw_ale_add_mcast(cpsw->ale, port->ndev->broadcast, | |
2321 | port_mask, ALE_VLAN, slave->port_vlan, | |
2322 | ALE_MCAST_FWD_2); | |
2323 | ||
2324 | writel(slave->port_vlan, port->port_base + AM65_CPSW_PORT_VLAN_REG_OFFSET); | |
2325 | ||
2326 | cpsw_ale_control_set(cpsw->ale, port->port_id, | |
2327 | ALE_PORT_MACONLY, 0); | |
2328 | } | |
2329 | ||
2330 | static int am65_cpsw_dl_switch_mode_set(struct devlink *dl, u32 id, | |
2331 | struct devlink_param_gset_ctx *ctx) | |
2332 | { | |
2333 | struct am65_cpsw_devlink *dl_priv = devlink_priv(dl); | |
2334 | struct am65_cpsw_common *cpsw = dl_priv->common; | |
2335 | bool switch_en = ctx->val.vbool; | |
2336 | bool if_running = false; | |
2337 | int i; | |
2338 | ||
2339 | dev_dbg(cpsw->dev, "%s id:%u\n", __func__, id); | |
2340 | ||
2341 | if (id != AM65_CPSW_DL_PARAM_SWITCH_MODE) | |
2342 | return -EOPNOTSUPP; | |
2343 | ||
2344 | if (switch_en == !cpsw->is_emac_mode) | |
2345 | return 0; | |
2346 | ||
2347 | if (!switch_en && cpsw->br_members) { | |
2348 | dev_err(cpsw->dev, "Remove ports from bridge before disabling switch mode\n"); | |
2349 | return -EINVAL; | |
2350 | } | |
2351 | ||
2352 | rtnl_lock(); | |
2353 | ||
2354 | cpsw->is_emac_mode = !switch_en; | |
2355 | ||
2356 | for (i = 0; i < cpsw->port_num; i++) { | |
2357 | struct net_device *sl_ndev = cpsw->ports[i].ndev; | |
2358 | ||
2359 | if (!sl_ndev || !netif_running(sl_ndev)) | |
2360 | continue; | |
2361 | ||
2362 | if_running = true; | |
2363 | } | |
2364 | ||
2365 | if (!if_running) { | |
2366 | /* all ndevs are down */ | |
2367 | for (i = 0; i < cpsw->port_num; i++) { | |
2368 | struct net_device *sl_ndev = cpsw->ports[i].ndev; | |
2369 | struct am65_cpsw_slave_data *slave; | |
2370 | ||
2371 | if (!sl_ndev) | |
2372 | continue; | |
2373 | ||
2374 | slave = am65_ndev_to_slave(sl_ndev); | |
2375 | if (switch_en) | |
2376 | slave->port_vlan = cpsw->default_vlan; | |
2377 | else | |
2378 | slave->port_vlan = 0; | |
2379 | } | |
2380 | ||
2381 | goto exit; | |
2382 | } | |
2383 | ||
2384 | cpsw_ale_control_set(cpsw->ale, 0, ALE_BYPASS, 1); | |
2385 | /* clean up ALE table */ | |
2386 | cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, ALE_CLEAR, 1); | |
2387 | cpsw_ale_control_get(cpsw->ale, HOST_PORT_NUM, ALE_AGEOUT); | |
2388 | ||
2389 | if (switch_en) { | |
2390 | dev_info(cpsw->dev, "Enable switch mode\n"); | |
2391 | ||
2392 | am65_cpsw_init_host_port_switch(cpsw); | |
2393 | ||
2394 | for (i = 0; i < cpsw->port_num; i++) { | |
2395 | struct net_device *sl_ndev = cpsw->ports[i].ndev; | |
2396 | struct am65_cpsw_slave_data *slave; | |
2397 | struct am65_cpsw_port *port; | |
2398 | ||
2399 | if (!sl_ndev) | |
2400 | continue; | |
2401 | ||
2402 | port = am65_ndev_to_port(sl_ndev); | |
2403 | slave = am65_ndev_to_slave(sl_ndev); | |
2404 | slave->port_vlan = cpsw->default_vlan; | |
2405 | ||
2406 | if (netif_running(sl_ndev)) | |
2407 | am65_cpsw_init_port_switch_ale(port); | |
2408 | } | |
2409 | ||
2410 | } else { | |
2411 | dev_info(cpsw->dev, "Disable switch mode\n"); | |
2412 | ||
2413 | am65_cpsw_init_host_port_emac(cpsw); | |
2414 | ||
2415 | for (i = 0; i < cpsw->port_num; i++) { | |
2416 | struct net_device *sl_ndev = cpsw->ports[i].ndev; | |
2417 | struct am65_cpsw_port *port; | |
2418 | ||
2419 | if (!sl_ndev) | |
2420 | continue; | |
2421 | ||
2422 | port = am65_ndev_to_port(sl_ndev); | |
2423 | port->slave.port_vlan = 0; | |
2424 | if (netif_running(sl_ndev)) | |
2425 | am65_cpsw_init_port_emac_ale(port); | |
2426 | } | |
2427 | } | |
2428 | cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, ALE_BYPASS, 0); | |
2429 | exit: | |
2430 | rtnl_unlock(); | |
2431 | ||
2432 | return 0; | |
2433 | } | |
2434 | ||
2435 | static const struct devlink_param am65_cpsw_devlink_params[] = { | |
2436 | DEVLINK_PARAM_DRIVER(AM65_CPSW_DL_PARAM_SWITCH_MODE, "switch_mode", | |
2437 | DEVLINK_PARAM_TYPE_BOOL, | |
2438 | BIT(DEVLINK_PARAM_CMODE_RUNTIME), | |
2439 | am65_cpsw_dl_switch_mode_get, | |
2440 | am65_cpsw_dl_switch_mode_set, NULL), | |
2441 | }; | |
2442 | ||
58356eb3 VR |
2443 | static int am65_cpsw_nuss_register_devlink(struct am65_cpsw_common *common) |
2444 | { | |
2445 | struct devlink_port_attrs attrs = {}; | |
2446 | struct am65_cpsw_devlink *dl_priv; | |
2447 | struct device *dev = common->dev; | |
2448 | struct devlink_port *dl_port; | |
2449 | struct am65_cpsw_port *port; | |
2450 | int ret = 0; | |
2451 | int i; | |
2452 | ||
2453 | common->devlink = | |
919d13a7 | 2454 | devlink_alloc(&am65_cpsw_devlink_ops, sizeof(*dl_priv), dev); |
58356eb3 VR |
2455 | if (!common->devlink) |
2456 | return -ENOMEM; | |
2457 | ||
2458 | dl_priv = devlink_priv(common->devlink); | |
2459 | dl_priv->common = common; | |
2460 | ||
58356eb3 VR |
2461 | /* Provide devlink hook to switch mode when multiple external ports |
2462 | * are present NUSS switchdev driver is enabled. | |
2463 | */ | |
2464 | if (!AM65_CPSW_IS_CPSW2G(common) && | |
2465 | IS_ENABLED(CONFIG_TI_K3_AM65_CPSW_SWITCHDEV)) { | |
2466 | ret = devlink_params_register(common->devlink, | |
2467 | am65_cpsw_devlink_params, | |
2468 | ARRAY_SIZE(am65_cpsw_devlink_params)); | |
2469 | if (ret) { | |
2470 | dev_err(dev, "devlink params reg fail ret:%d\n", ret); | |
2471 | goto dl_unreg; | |
2472 | } | |
58356eb3 VR |
2473 | } |
2474 | ||
2475 | for (i = 1; i <= common->port_num; i++) { | |
2476 | port = am65_common_get_port(common, i); | |
2477 | dl_port = &port->devlink_port; | |
2478 | ||
7e777b1b MS |
2479 | if (port->ndev) |
2480 | attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; | |
2481 | else | |
2482 | attrs.flavour = DEVLINK_PORT_FLAVOUR_UNUSED; | |
58356eb3 VR |
2483 | attrs.phys.port_number = port->port_id; |
2484 | attrs.switch_id.id_len = sizeof(resource_size_t); | |
2485 | memcpy(attrs.switch_id.id, common->switch_id, attrs.switch_id.id_len); | |
2486 | devlink_port_attrs_set(dl_port, &attrs); | |
2487 | ||
2488 | ret = devlink_port_register(common->devlink, dl_port, port->port_id); | |
2489 | if (ret) { | |
2490 | dev_err(dev, "devlink_port reg fail for port %d, ret:%d\n", | |
2491 | port->port_id, ret); | |
2492 | goto dl_port_unreg; | |
2493 | } | |
58356eb3 | 2494 | } |
0d98ff22 | 2495 | devlink_register(common->devlink); |
58356eb3 VR |
2496 | return ret; |
2497 | ||
2498 | dl_port_unreg: | |
acf34954 LR |
2499 | for (i = i - 1; i >= 1; i--) { |
2500 | port = am65_common_get_port(common, i); | |
2501 | dl_port = &port->devlink_port; | |
2502 | ||
2503 | devlink_port_unregister(dl_port); | |
2504 | } | |
58356eb3 | 2505 | dl_unreg: |
58356eb3 | 2506 | devlink_free(common->devlink); |
58356eb3 VR |
2507 | return ret; |
2508 | } | |
2509 | ||
2510 | static void am65_cpsw_unregister_devlink(struct am65_cpsw_common *common) | |
2511 | { | |
acf34954 LR |
2512 | struct devlink_port *dl_port; |
2513 | struct am65_cpsw_port *port; | |
2514 | int i; | |
2515 | ||
0d98ff22 LR |
2516 | devlink_unregister(common->devlink); |
2517 | ||
acf34954 LR |
2518 | for (i = 1; i <= common->port_num; i++) { |
2519 | port = am65_common_get_port(common, i); | |
2520 | dl_port = &port->devlink_port; | |
2521 | ||
2522 | devlink_port_unregister(dl_port); | |
2523 | } | |
2524 | ||
58356eb3 | 2525 | if (!AM65_CPSW_IS_CPSW2G(common) && |
0d98ff22 LR |
2526 | IS_ENABLED(CONFIG_TI_K3_AM65_CPSW_SWITCHDEV)) |
2527 | devlink_params_unregister(common->devlink, | |
2528 | am65_cpsw_devlink_params, | |
58356eb3 | 2529 | ARRAY_SIZE(am65_cpsw_devlink_params)); |
58356eb3 | 2530 | |
58356eb3 VR |
2531 | devlink_free(common->devlink); |
2532 | } | |
2533 | ||
84b4aa49 | 2534 | static int am65_cpsw_nuss_register_ndevs(struct am65_cpsw_common *common) |
93a76530 GS |
2535 | { |
2536 | struct device *dev = common->dev; | |
0680e20a | 2537 | struct devlink_port *dl_port; |
93a76530 | 2538 | struct am65_cpsw_port *port; |
84b4aa49 | 2539 | int ret = 0, i; |
93a76530 | 2540 | |
84b4aa49 | 2541 | ret = am65_cpsw_nuss_ndev_add_tx_napi(common); |
93a76530 | 2542 | if (ret) |
84b4aa49 | 2543 | return ret; |
93a76530 GS |
2544 | |
2545 | ret = devm_request_irq(dev, common->rx_chns.irq, | |
2546 | am65_cpsw_nuss_rx_irq, | |
6f5c27f9 | 2547 | IRQF_TRIGGER_HIGH, dev_name(dev), common); |
93a76530 GS |
2548 | if (ret) { |
2549 | dev_err(dev, "failure requesting rx irq %u, %d\n", | |
2550 | common->rx_chns.irq, ret); | |
84b4aa49 GS |
2551 | return ret; |
2552 | } | |
2553 | ||
0680e20a SV |
2554 | ret = am65_cpsw_nuss_register_devlink(common); |
2555 | if (ret) | |
2556 | return ret; | |
2557 | ||
84b4aa49 GS |
2558 | for (i = 0; i < common->port_num; i++) { |
2559 | port = &common->ports[i]; | |
2560 | ||
2561 | if (!port->ndev) | |
2562 | continue; | |
2563 | ||
2564 | ret = register_netdev(port->ndev); | |
2565 | if (ret) { | |
2566 | dev_err(dev, "error registering slave net device%i %d\n", | |
2567 | i, ret); | |
2568 | goto err_cleanup_ndev; | |
2569 | } | |
0680e20a SV |
2570 | |
2571 | dl_port = &port->devlink_port; | |
2572 | devlink_port_type_eth_set(dl_port, port->ndev); | |
93a76530 GS |
2573 | } |
2574 | ||
2934db9b | 2575 | ret = am65_cpsw_register_notifiers(common); |
58356eb3 VR |
2576 | if (ret) |
2577 | goto err_cleanup_ndev; | |
93a76530 GS |
2578 | |
2579 | /* can't auto unregister ndev using devm_add_action() due to | |
2580 | * devres release sequence in DD core for DMA | |
2581 | */ | |
84b4aa49 | 2582 | |
58356eb3 | 2583 | return 0; |
0680e20a | 2584 | |
84b4aa49 GS |
2585 | err_cleanup_ndev: |
2586 | am65_cpsw_nuss_cleanup_ndev(common); | |
0680e20a | 2587 | am65_cpsw_unregister_devlink(common); |
2934db9b | 2588 | |
93a76530 GS |
2589 | return ret; |
2590 | } | |
2591 | ||
2592 | int am65_cpsw_nuss_update_tx_chns(struct am65_cpsw_common *common, int num_tx) | |
2593 | { | |
2594 | int ret; | |
2595 | ||
2596 | common->tx_ch_num = num_tx; | |
2597 | ret = am65_cpsw_nuss_init_tx_chns(common); | |
2598 | if (ret) | |
2599 | return ret; | |
2600 | ||
84b4aa49 | 2601 | return am65_cpsw_nuss_ndev_add_tx_napi(common); |
93a76530 GS |
2602 | } |
2603 | ||
38389aa6 GS |
2604 | struct am65_cpsw_soc_pdata { |
2605 | u32 quirks_dis; | |
2606 | }; | |
2607 | ||
2608 | static const struct am65_cpsw_soc_pdata am65x_soc_sr2_0 = { | |
2609 | .quirks_dis = AM65_CPSW_QUIRK_I2027_NO_TX_CSUM, | |
2610 | }; | |
2611 | ||
2612 | static const struct soc_device_attribute am65_cpsw_socinfo[] = { | |
2613 | { .family = "AM65X", | |
2614 | .revision = "SR2.0", | |
2615 | .data = &am65x_soc_sr2_0 | |
2616 | }, | |
2617 | {/* sentinel */} | |
2618 | }; | |
2619 | ||
93a76530 GS |
2620 | static const struct am65_cpsw_pdata am65x_sr1_0 = { |
2621 | .quirks = AM65_CPSW_QUIRK_I2027_NO_TX_CSUM, | |
7747d4b7 | 2622 | .ale_dev_id = "am65x-cpsw2g", |
c6275c02 | 2623 | .fdqring_mode = K3_RINGACC_RING_MODE_MESSAGE, |
93a76530 GS |
2624 | }; |
2625 | ||
38389aa6 | 2626 | static const struct am65_cpsw_pdata j721e_pdata = { |
93a76530 | 2627 | .quirks = 0, |
7747d4b7 | 2628 | .ale_dev_id = "am65x-cpsw2g", |
c6275c02 | 2629 | .fdqring_mode = K3_RINGACC_RING_MODE_MESSAGE, |
93a76530 GS |
2630 | }; |
2631 | ||
4f7cce27 VR |
2632 | static const struct am65_cpsw_pdata am64x_cpswxg_pdata = { |
2633 | .quirks = 0, | |
2634 | .ale_dev_id = "am64-cpswxg", | |
2635 | .fdqring_mode = K3_RINGACC_RING_MODE_RING, | |
2636 | }; | |
2637 | ||
37184fc1 SV |
2638 | static const struct am65_cpsw_pdata j7200_cpswxg_pdata = { |
2639 | .quirks = 0, | |
2640 | .ale_dev_id = "am64-cpswxg", | |
2641 | .fdqring_mode = K3_RINGACC_RING_MODE_RING, | |
2642 | .extra_modes = BIT(PHY_INTERFACE_MODE_QSGMII), | |
2643 | }; | |
2644 | ||
93a76530 | 2645 | static const struct of_device_id am65_cpsw_nuss_of_mtable[] = { |
38389aa6 GS |
2646 | { .compatible = "ti,am654-cpsw-nuss", .data = &am65x_sr1_0}, |
2647 | { .compatible = "ti,j721e-cpsw-nuss", .data = &j721e_pdata}, | |
4f7cce27 | 2648 | { .compatible = "ti,am642-cpsw-nuss", .data = &am64x_cpswxg_pdata}, |
37184fc1 | 2649 | { .compatible = "ti,j7200-cpswxg-nuss", .data = &j7200_cpswxg_pdata}, |
93a76530 GS |
2650 | { /* sentinel */ }, |
2651 | }; | |
2652 | MODULE_DEVICE_TABLE(of, am65_cpsw_nuss_of_mtable); | |
2653 | ||
38389aa6 GS |
2654 | static void am65_cpsw_nuss_apply_socinfo(struct am65_cpsw_common *common) |
2655 | { | |
2656 | const struct soc_device_attribute *soc; | |
2657 | ||
2658 | soc = soc_device_match(am65_cpsw_socinfo); | |
2659 | if (soc && soc->data) { | |
2660 | const struct am65_cpsw_soc_pdata *socdata = soc->data; | |
2661 | ||
2662 | /* disable quirks */ | |
2663 | common->pdata.quirks &= ~socdata->quirks_dis; | |
2664 | } | |
2665 | } | |
2666 | ||
93a76530 GS |
2667 | static int am65_cpsw_nuss_probe(struct platform_device *pdev) |
2668 | { | |
2074f9ea | 2669 | struct cpsw_ale_params ale_params = { 0 }; |
93a76530 GS |
2670 | const struct of_device_id *of_id; |
2671 | struct device *dev = &pdev->dev; | |
2672 | struct am65_cpsw_common *common; | |
2673 | struct device_node *node; | |
2674 | struct resource *res; | |
23015ff1 | 2675 | struct clk *clk; |
58356eb3 | 2676 | u64 id_temp; |
93a76530 GS |
2677 | int ret, i; |
2678 | ||
2679 | common = devm_kzalloc(dev, sizeof(struct am65_cpsw_common), GFP_KERNEL); | |
2680 | if (!common) | |
2681 | return -ENOMEM; | |
2682 | common->dev = dev; | |
2683 | ||
2684 | of_id = of_match_device(am65_cpsw_nuss_of_mtable, dev); | |
2685 | if (!of_id) | |
2686 | return -EINVAL; | |
38389aa6 GS |
2687 | common->pdata = *(const struct am65_cpsw_pdata *)of_id->data; |
2688 | ||
2689 | am65_cpsw_nuss_apply_socinfo(common); | |
93a76530 GS |
2690 | |
2691 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cpsw_nuss"); | |
2692 | common->ss_base = devm_ioremap_resource(&pdev->dev, res); | |
2693 | if (IS_ERR(common->ss_base)) | |
2694 | return PTR_ERR(common->ss_base); | |
2695 | common->cpsw_base = common->ss_base + AM65_CPSW_CPSW_NU_BASE; | |
58356eb3 VR |
2696 | /* Use device's physical base address as switch id */ |
2697 | id_temp = cpu_to_be64(res->start); | |
2698 | memcpy(common->switch_id, &id_temp, sizeof(res->start)); | |
93a76530 GS |
2699 | |
2700 | node = of_get_child_by_name(dev->of_node, "ethernet-ports"); | |
2701 | if (!node) | |
2702 | return -ENOENT; | |
2703 | common->port_num = of_get_child_count(node); | |
5dd89d2f | 2704 | of_node_put(node); |
93a76530 GS |
2705 | if (common->port_num < 1 || common->port_num > AM65_CPSW_MAX_PORTS) |
2706 | return -ENOENT; | |
93a76530 | 2707 | |
93a76530 GS |
2708 | common->rx_flow_id_base = -1; |
2709 | init_completion(&common->tdown_complete); | |
2710 | common->tx_ch_num = 1; | |
51824048 | 2711 | common->pf_p0_rx_ptype_rrobin = false; |
58356eb3 | 2712 | common->default_vlan = 1; |
93a76530 | 2713 | |
93a76530 GS |
2714 | common->ports = devm_kcalloc(dev, common->port_num, |
2715 | sizeof(*common->ports), | |
2716 | GFP_KERNEL); | |
2717 | if (!common->ports) | |
2718 | return -ENOMEM; | |
2719 | ||
23015ff1 | 2720 | clk = devm_clk_get(dev, "fck"); |
8fbc2f9e GS |
2721 | if (IS_ERR(clk)) |
2722 | return dev_err_probe(dev, PTR_ERR(clk), "getting fck clock\n"); | |
23015ff1 GS |
2723 | common->bus_freq = clk_get_rate(clk); |
2724 | ||
93a76530 | 2725 | pm_runtime_enable(dev); |
2240514c | 2726 | ret = pm_runtime_resume_and_get(dev); |
93a76530 | 2727 | if (ret < 0) { |
93a76530 GS |
2728 | pm_runtime_disable(dev); |
2729 | return ret; | |
2730 | } | |
2731 | ||
a45cfcc6 GS |
2732 | node = of_get_child_by_name(dev->of_node, "mdio"); |
2733 | if (!node) { | |
2734 | dev_warn(dev, "MDIO node not found\n"); | |
2735 | } else if (of_device_is_available(node)) { | |
2736 | struct platform_device *mdio_pdev; | |
2737 | ||
2738 | mdio_pdev = of_platform_device_create(node, NULL, dev); | |
2739 | if (!mdio_pdev) { | |
2740 | ret = -ENODEV; | |
2741 | goto err_pm_clear; | |
2742 | } | |
2743 | ||
2744 | common->mdio_dev = &mdio_pdev->dev; | |
2745 | } | |
2746 | of_node_put(node); | |
93a76530 GS |
2747 | |
2748 | am65_cpsw_nuss_get_ver(common); | |
2749 | ||
2750 | /* init tx channels */ | |
2751 | ret = am65_cpsw_nuss_init_tx_chns(common); | |
2752 | if (ret) | |
2753 | goto err_of_clear; | |
2754 | ret = am65_cpsw_nuss_init_rx_chns(common); | |
2755 | if (ret) | |
2756 | goto err_of_clear; | |
2757 | ||
2758 | ret = am65_cpsw_nuss_init_host_p(common); | |
2759 | if (ret) | |
2760 | goto err_of_clear; | |
2761 | ||
2762 | ret = am65_cpsw_nuss_init_slave_ports(common); | |
2763 | if (ret) | |
2764 | goto err_of_clear; | |
2765 | ||
2766 | /* init common data */ | |
2767 | ale_params.dev = dev; | |
2768 | ale_params.ale_ageout = AM65_CPSW_ALE_AGEOUT_DEFAULT; | |
93a76530 GS |
2769 | ale_params.ale_ports = common->port_num + 1; |
2770 | ale_params.ale_regs = common->cpsw_base + AM65_CPSW_NU_ALE_BASE; | |
7747d4b7 | 2771 | ale_params.dev_id = common->pdata.ale_dev_id; |
23015ff1 | 2772 | ale_params.bus_freq = common->bus_freq; |
93a76530 GS |
2773 | |
2774 | common->ale = cpsw_ale_create(&ale_params); | |
1401cf60 | 2775 | if (IS_ERR(common->ale)) { |
93a76530 | 2776 | dev_err(dev, "error initializing ale engine\n"); |
1401cf60 | 2777 | ret = PTR_ERR(common->ale); |
93a76530 GS |
2778 | goto err_of_clear; |
2779 | } | |
2780 | ||
b1f66a5b GS |
2781 | ret = am65_cpsw_init_cpts(common); |
2782 | if (ret) | |
2783 | goto err_of_clear; | |
2784 | ||
93a76530 GS |
2785 | /* init ports */ |
2786 | for (i = 0; i < common->port_num; i++) | |
2787 | am65_cpsw_nuss_slave_disable_unused(&common->ports[i]); | |
2788 | ||
2789 | dev_set_drvdata(dev, common); | |
2790 | ||
58356eb3 VR |
2791 | common->is_emac_mode = true; |
2792 | ||
84b4aa49 | 2793 | ret = am65_cpsw_nuss_init_ndevs(common); |
93a76530 | 2794 | if (ret) |
e8609e69 | 2795 | goto err_free_phylink; |
93a76530 | 2796 | |
84b4aa49 | 2797 | ret = am65_cpsw_nuss_register_ndevs(common); |
93a76530 | 2798 | if (ret) |
e8609e69 | 2799 | goto err_free_phylink; |
93a76530 GS |
2800 | |
2801 | pm_runtime_put(dev); | |
2802 | return 0; | |
2803 | ||
e8609e69 SV |
2804 | err_free_phylink: |
2805 | am65_cpsw_nuss_phylink_cleanup(common); | |
93a76530 | 2806 | err_of_clear: |
a45cfcc6 GS |
2807 | of_platform_device_destroy(common->mdio_dev, NULL); |
2808 | err_pm_clear: | |
93a76530 GS |
2809 | pm_runtime_put_sync(dev); |
2810 | pm_runtime_disable(dev); | |
2811 | return ret; | |
2812 | } | |
2813 | ||
2814 | static int am65_cpsw_nuss_remove(struct platform_device *pdev) | |
2815 | { | |
2816 | struct device *dev = &pdev->dev; | |
2817 | struct am65_cpsw_common *common; | |
2818 | int ret; | |
2819 | ||
2820 | common = dev_get_drvdata(dev); | |
2821 | ||
2240514c MC |
2822 | ret = pm_runtime_resume_and_get(&pdev->dev); |
2823 | if (ret < 0) | |
93a76530 | 2824 | return ret; |
93a76530 | 2825 | |
58356eb3 | 2826 | am65_cpsw_unregister_devlink(common); |
2934db9b | 2827 | am65_cpsw_unregister_notifiers(common); |
58356eb3 | 2828 | |
93a76530 GS |
2829 | /* must unregister ndevs here because DD release_driver routine calls |
2830 | * dma_deconfigure(dev) before devres_release_all(dev) | |
2831 | */ | |
2832 | am65_cpsw_nuss_cleanup_ndev(common); | |
1a0c016a | 2833 | am65_cpsw_nuss_phylink_cleanup(common); |
93a76530 | 2834 | |
a45cfcc6 | 2835 | of_platform_device_destroy(common->mdio_dev, NULL); |
93a76530 GS |
2836 | |
2837 | pm_runtime_put_sync(&pdev->dev); | |
2838 | pm_runtime_disable(&pdev->dev); | |
2839 | return 0; | |
2840 | } | |
2841 | ||
2842 | static struct platform_driver am65_cpsw_nuss_driver = { | |
2843 | .driver = { | |
2844 | .name = AM65_CPSW_DRV_NAME, | |
2845 | .of_match_table = am65_cpsw_nuss_of_mtable, | |
2846 | }, | |
2847 | .probe = am65_cpsw_nuss_probe, | |
2848 | .remove = am65_cpsw_nuss_remove, | |
2849 | }; | |
2850 | ||
2851 | module_platform_driver(am65_cpsw_nuss_driver); | |
2852 | ||
2853 | MODULE_LICENSE("GPL v2"); | |
2854 | MODULE_AUTHOR("Grygorii Strashko <grygorii.strashko@ti.com>"); | |
2855 | MODULE_DESCRIPTION("TI AM65 CPSW Ethernet driver"); |