1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 * Microsemi Ocelot Switch driver
5 * Copyright (c) 2017 Microsemi Corporation
7 #include <linux/dsa/ocelot.h>
8 #include <linux/if_bridge.h>
9 #include <linux/ptp_classify.h>
10 #include <soc/mscc/ocelot_vcap.h>
12 #include "ocelot_vcap.h"
14 #define TABLE_UPDATE_SLEEP_US 10
15 #define TABLE_UPDATE_TIMEOUT_US 100000
17 struct ocelot_mact_entry {
20 enum macaccess_entry_type type;
23 static inline u32 ocelot_mact_read_macaccess(struct ocelot *ocelot)
25 return ocelot_read(ocelot, ANA_TABLES_MACACCESS);
28 static inline int ocelot_mact_wait_for_completion(struct ocelot *ocelot)
32 return readx_poll_timeout(ocelot_mact_read_macaccess,
34 (val & ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M) ==
36 TABLE_UPDATE_SLEEP_US, TABLE_UPDATE_TIMEOUT_US);
39 static void ocelot_mact_select(struct ocelot *ocelot,
40 const unsigned char mac[ETH_ALEN],
43 u32 macl = 0, mach = 0;
45 /* Set the MAC address to handle and the vlan associated in a format
46 * understood by the hardware.
56 ocelot_write(ocelot, macl, ANA_TABLES_MACLDATA);
57 ocelot_write(ocelot, mach, ANA_TABLES_MACHDATA);
61 int ocelot_mact_learn(struct ocelot *ocelot, int port,
62 const unsigned char mac[ETH_ALEN],
63 unsigned int vid, enum macaccess_entry_type type)
65 u32 cmd = ANA_TABLES_MACACCESS_VALID |
66 ANA_TABLES_MACACCESS_DEST_IDX(port) |
67 ANA_TABLES_MACACCESS_ENTRYTYPE(type) |
68 ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN);
69 unsigned int mc_ports;
71 /* Set MAC_CPU_COPY if the CPU port is used by a multicast entry */
72 if (type == ENTRYTYPE_MACv4)
73 mc_ports = (mac[1] << 8) | mac[2];
74 else if (type == ENTRYTYPE_MACv6)
75 mc_ports = (mac[0] << 8) | mac[1];
79 if (mc_ports & BIT(ocelot->num_phys_ports))
80 cmd |= ANA_TABLES_MACACCESS_MAC_CPU_COPY;
82 ocelot_mact_select(ocelot, mac, vid);
84 /* Issue a write command */
85 ocelot_write(ocelot, cmd, ANA_TABLES_MACACCESS);
87 return ocelot_mact_wait_for_completion(ocelot);
89 EXPORT_SYMBOL(ocelot_mact_learn);
91 int ocelot_mact_forget(struct ocelot *ocelot,
92 const unsigned char mac[ETH_ALEN], unsigned int vid)
94 ocelot_mact_select(ocelot, mac, vid);
96 /* Issue a forget command */
98 ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_FORGET),
99 ANA_TABLES_MACACCESS);
101 return ocelot_mact_wait_for_completion(ocelot);
103 EXPORT_SYMBOL(ocelot_mact_forget);
105 static void ocelot_mact_init(struct ocelot *ocelot)
107 /* Configure the learning mode entries attributes:
108 * - Do not copy the frame to the CPU extraction queues.
109 * - Use the vlan and mac_cpoy for dmac lookup.
111 ocelot_rmw(ocelot, 0,
112 ANA_AGENCTRL_LEARN_CPU_COPY | ANA_AGENCTRL_IGNORE_DMAC_FLAGS
113 | ANA_AGENCTRL_LEARN_FWD_KILL
114 | ANA_AGENCTRL_LEARN_IGNORE_VLAN,
117 /* Clear the MAC table */
118 ocelot_write(ocelot, MACACCESS_CMD_INIT, ANA_TABLES_MACACCESS);
121 static void ocelot_vcap_enable(struct ocelot *ocelot, int port)
123 ocelot_write_gix(ocelot, ANA_PORT_VCAP_S2_CFG_S2_ENA |
124 ANA_PORT_VCAP_S2_CFG_S2_IP6_CFG(0xa),
125 ANA_PORT_VCAP_S2_CFG, port);
127 ocelot_write_gix(ocelot, ANA_PORT_VCAP_CFG_S1_ENA,
128 ANA_PORT_VCAP_CFG, port);
130 ocelot_rmw_gix(ocelot, REW_PORT_CFG_ES0_EN,
135 static inline u32 ocelot_vlant_read_vlanaccess(struct ocelot *ocelot)
137 return ocelot_read(ocelot, ANA_TABLES_VLANACCESS);
140 static inline int ocelot_vlant_wait_for_completion(struct ocelot *ocelot)
144 return readx_poll_timeout(ocelot_vlant_read_vlanaccess,
147 (val & ANA_TABLES_VLANACCESS_VLAN_TBL_CMD_M) ==
148 ANA_TABLES_VLANACCESS_CMD_IDLE,
149 TABLE_UPDATE_SLEEP_US, TABLE_UPDATE_TIMEOUT_US);
152 static int ocelot_vlant_set_mask(struct ocelot *ocelot, u16 vid, u32 mask)
154 /* Select the VID to configure */
155 ocelot_write(ocelot, ANA_TABLES_VLANTIDX_V_INDEX(vid),
156 ANA_TABLES_VLANTIDX);
157 /* Set the vlan port members mask and issue a write command */
158 ocelot_write(ocelot, ANA_TABLES_VLANACCESS_VLAN_PORT_MASK(mask) |
159 ANA_TABLES_VLANACCESS_CMD_WRITE,
160 ANA_TABLES_VLANACCESS);
162 return ocelot_vlant_wait_for_completion(ocelot);
165 static void ocelot_port_set_native_vlan(struct ocelot *ocelot, int port,
166 struct ocelot_vlan native_vlan)
168 struct ocelot_port *ocelot_port = ocelot->ports[port];
171 ocelot_port->native_vlan = native_vlan;
173 ocelot_rmw_gix(ocelot, REW_PORT_VLAN_CFG_PORT_VID(native_vlan.vid),
174 REW_PORT_VLAN_CFG_PORT_VID_M,
175 REW_PORT_VLAN_CFG, port);
177 if (ocelot_port->vlan_aware) {
178 if (native_vlan.valid)
179 /* Tag all frames except when VID == DEFAULT_VLAN */
180 val = REW_TAG_CFG_TAG_CFG(1);
183 val = REW_TAG_CFG_TAG_CFG(3);
185 /* Port tagging disabled. */
186 val = REW_TAG_CFG_TAG_CFG(0);
188 ocelot_rmw_gix(ocelot, val,
189 REW_TAG_CFG_TAG_CFG_M,
193 /* Default vlan to clasify for untagged frames (may be zero) */
194 static void ocelot_port_set_pvid(struct ocelot *ocelot, int port,
195 struct ocelot_vlan pvid_vlan)
197 struct ocelot_port *ocelot_port = ocelot->ports[port];
200 ocelot_port->pvid_vlan = pvid_vlan;
202 if (!ocelot_port->vlan_aware)
205 ocelot_rmw_gix(ocelot,
206 ANA_PORT_VLAN_CFG_VLAN_VID(pvid_vlan.vid),
207 ANA_PORT_VLAN_CFG_VLAN_VID_M,
208 ANA_PORT_VLAN_CFG, port);
210 /* If there's no pvid, we should drop not only untagged traffic (which
211 * happens automatically), but also 802.1p traffic which gets
212 * classified to VLAN 0, but that is always in our RX filter, so it
213 * would get accepted were it not for this setting.
215 if (!pvid_vlan.valid && ocelot_port->vlan_aware)
216 val = ANA_PORT_DROP_CFG_DROP_PRIO_S_TAGGED_ENA |
217 ANA_PORT_DROP_CFG_DROP_PRIO_C_TAGGED_ENA;
219 ocelot_rmw_gix(ocelot, val,
220 ANA_PORT_DROP_CFG_DROP_PRIO_S_TAGGED_ENA |
221 ANA_PORT_DROP_CFG_DROP_PRIO_C_TAGGED_ENA,
222 ANA_PORT_DROP_CFG, port);
225 int ocelot_port_vlan_filtering(struct ocelot *ocelot, int port,
228 struct ocelot_vcap_block *block = &ocelot->block[VCAP_IS1];
229 struct ocelot_port *ocelot_port = ocelot->ports[port];
230 struct ocelot_vcap_filter *filter;
233 list_for_each_entry(filter, &block->rules, list) {
234 if (filter->ingress_port_mask & BIT(port) &&
235 filter->action.vid_replace_ena) {
237 "Cannot change VLAN state with vlan modify rules active\n");
242 ocelot_port->vlan_aware = vlan_aware;
245 val = ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
246 ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1);
249 ocelot_rmw_gix(ocelot, val,
250 ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
251 ANA_PORT_VLAN_CFG_VLAN_POP_CNT_M,
252 ANA_PORT_VLAN_CFG, port);
254 ocelot_port_set_pvid(ocelot, port, ocelot_port->pvid_vlan);
255 ocelot_port_set_native_vlan(ocelot, port, ocelot_port->native_vlan);
259 EXPORT_SYMBOL(ocelot_port_vlan_filtering);
261 int ocelot_vlan_prepare(struct ocelot *ocelot, int port, u16 vid, bool pvid,
262 bool untagged, struct netlink_ext_ack *extack)
264 struct ocelot_port *ocelot_port = ocelot->ports[port];
266 /* Deny changing the native VLAN, but always permit deleting it */
267 if (untagged && ocelot_port->native_vlan.vid != vid &&
268 ocelot_port->native_vlan.valid) {
269 NL_SET_ERR_MSG_MOD(extack,
270 "Port already has a native VLAN");
276 EXPORT_SYMBOL(ocelot_vlan_prepare);
278 int ocelot_vlan_add(struct ocelot *ocelot, int port, u16 vid, bool pvid,
283 /* Make the port a member of the VLAN */
284 ocelot->vlan_mask[vid] |= BIT(port);
285 ret = ocelot_vlant_set_mask(ocelot, vid, ocelot->vlan_mask[vid]);
289 /* Default ingress vlan classification */
291 struct ocelot_vlan pvid_vlan;
294 pvid_vlan.valid = true;
295 ocelot_port_set_pvid(ocelot, port, pvid_vlan);
298 /* Untagged egress vlan clasification */
300 struct ocelot_vlan native_vlan;
302 native_vlan.vid = vid;
303 native_vlan.valid = true;
304 ocelot_port_set_native_vlan(ocelot, port, native_vlan);
309 EXPORT_SYMBOL(ocelot_vlan_add);
311 int ocelot_vlan_del(struct ocelot *ocelot, int port, u16 vid)
313 struct ocelot_port *ocelot_port = ocelot->ports[port];
316 /* Stop the port from being a member of the vlan */
317 ocelot->vlan_mask[vid] &= ~BIT(port);
318 ret = ocelot_vlant_set_mask(ocelot, vid, ocelot->vlan_mask[vid]);
323 if (ocelot_port->pvid_vlan.vid == vid) {
324 struct ocelot_vlan pvid_vlan = {0};
326 ocelot_port_set_pvid(ocelot, port, pvid_vlan);
330 if (ocelot_port->native_vlan.vid == vid) {
331 struct ocelot_vlan native_vlan = {0};
333 ocelot_port_set_native_vlan(ocelot, port, native_vlan);
338 EXPORT_SYMBOL(ocelot_vlan_del);
340 static void ocelot_vlan_init(struct ocelot *ocelot)
344 /* Clear VLAN table, by default all ports are members of all VLANs */
345 ocelot_write(ocelot, ANA_TABLES_VLANACCESS_CMD_INIT,
346 ANA_TABLES_VLANACCESS);
347 ocelot_vlant_wait_for_completion(ocelot);
349 /* Configure the port VLAN memberships */
350 for (vid = 1; vid < VLAN_N_VID; vid++) {
351 ocelot->vlan_mask[vid] = 0;
352 ocelot_vlant_set_mask(ocelot, vid, ocelot->vlan_mask[vid]);
355 /* Because VLAN filtering is enabled, we need VID 0 to get untagged
356 * traffic. It is added automatically if 8021q module is loaded, but
357 * we can't rely on it since module may be not loaded.
359 ocelot->vlan_mask[0] = GENMASK(ocelot->num_phys_ports - 1, 0);
360 ocelot_vlant_set_mask(ocelot, 0, ocelot->vlan_mask[0]);
362 /* Set vlan ingress filter mask to all ports but the CPU port by
365 ocelot_write(ocelot, GENMASK(ocelot->num_phys_ports - 1, 0),
368 for (port = 0; port < ocelot->num_phys_ports; port++) {
369 ocelot_write_gix(ocelot, 0, REW_PORT_VLAN_CFG, port);
370 ocelot_write_gix(ocelot, 0, REW_TAG_CFG, port);
374 static u32 ocelot_read_eq_avail(struct ocelot *ocelot, int port)
376 return ocelot_read_rix(ocelot, QSYS_SW_STATUS, port);
379 static int ocelot_port_flush(struct ocelot *ocelot, int port)
381 unsigned int pause_ena;
384 /* Disable dequeuing from the egress queues */
385 ocelot_rmw_rix(ocelot, QSYS_PORT_MODE_DEQUEUE_DIS,
386 QSYS_PORT_MODE_DEQUEUE_DIS,
387 QSYS_PORT_MODE, port);
389 /* Disable flow control */
390 ocelot_fields_read(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, &pause_ena);
391 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 0);
393 /* Disable priority flow control */
394 ocelot_fields_write(ocelot, port,
395 QSYS_SWITCH_PORT_MODE_TX_PFC_ENA, 0);
397 /* Wait at least the time it takes to receive a frame of maximum length
399 * Worst-case delays for 10 kilobyte jumbo frames are:
401 * 800 μs on a 100M port
402 * 80 μs on a 1G port
403 * 32 μs on a 2.5G port
405 usleep_range(8000, 10000);
407 /* Disable half duplex backpressure. */
408 ocelot_rmw_rix(ocelot, 0, SYS_FRONT_PORT_MODE_HDX_MODE,
409 SYS_FRONT_PORT_MODE, port);
411 /* Flush the queues associated with the port. */
412 ocelot_rmw_gix(ocelot, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG_FLUSH_ENA,
415 /* Enable dequeuing from the egress queues. */
416 ocelot_rmw_rix(ocelot, 0, QSYS_PORT_MODE_DEQUEUE_DIS, QSYS_PORT_MODE,
419 /* Wait until flushing is complete. */
420 err = read_poll_timeout(ocelot_read_eq_avail, val, !val,
421 100, 2000000, false, ocelot, port);
423 /* Clear flushing again. */
424 ocelot_rmw_gix(ocelot, 0, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG, port);
426 /* Re-enable flow control */
427 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, pause_ena);
432 void ocelot_phylink_mac_link_down(struct ocelot *ocelot, int port,
433 unsigned int link_an_mode,
434 phy_interface_t interface,
435 unsigned long quirks)
437 struct ocelot_port *ocelot_port = ocelot->ports[port];
440 ocelot_port_rmwl(ocelot_port, 0, DEV_MAC_ENA_CFG_RX_ENA,
443 ocelot_fields_write(ocelot, port, QSYS_SWITCH_PORT_MODE_PORT_ENA, 0);
445 err = ocelot_port_flush(ocelot, port);
447 dev_err(ocelot->dev, "failed to flush port %d: %d\n",
450 /* Put the port in reset. */
451 if (interface != PHY_INTERFACE_MODE_QSGMII ||
452 !(quirks & OCELOT_QUIRK_QSGMII_PORTS_MUST_BE_UP))
453 ocelot_port_rmwl(ocelot_port,
454 DEV_CLOCK_CFG_MAC_TX_RST |
455 DEV_CLOCK_CFG_MAC_TX_RST,
456 DEV_CLOCK_CFG_MAC_TX_RST |
457 DEV_CLOCK_CFG_MAC_TX_RST,
460 EXPORT_SYMBOL_GPL(ocelot_phylink_mac_link_down);
462 void ocelot_phylink_mac_link_up(struct ocelot *ocelot, int port,
463 struct phy_device *phydev,
464 unsigned int link_an_mode,
465 phy_interface_t interface,
466 int speed, int duplex,
467 bool tx_pause, bool rx_pause,
468 unsigned long quirks)
470 struct ocelot_port *ocelot_port = ocelot->ports[port];
471 int mac_speed, mode = 0;
474 /* The MAC might be integrated in systems where the MAC speed is fixed
475 * and it's the PCS who is performing the rate adaptation, so we have
476 * to write "1000Mbps" into the LINK_SPEED field of DEV_CLOCK_CFG
477 * (which is also its default value).
479 if ((quirks & OCELOT_QUIRK_PCS_PERFORMS_RATE_ADAPTATION) ||
480 speed == SPEED_1000) {
481 mac_speed = OCELOT_SPEED_1000;
482 mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA;
483 } else if (speed == SPEED_2500) {
484 mac_speed = OCELOT_SPEED_2500;
485 mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA;
486 } else if (speed == SPEED_100) {
487 mac_speed = OCELOT_SPEED_100;
489 mac_speed = OCELOT_SPEED_10;
492 if (duplex == DUPLEX_FULL)
493 mode |= DEV_MAC_MODE_CFG_FDX_ENA;
495 ocelot_port_writel(ocelot_port, mode, DEV_MAC_MODE_CFG);
497 /* Take port out of reset by clearing the MAC_TX_RST, MAC_RX_RST and
498 * PORT_RST bits in DEV_CLOCK_CFG.
500 ocelot_port_writel(ocelot_port, DEV_CLOCK_CFG_LINK_SPEED(mac_speed),
505 mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(OCELOT_SPEED_10);
508 mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(OCELOT_SPEED_100);
512 mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(OCELOT_SPEED_1000);
515 dev_err(ocelot->dev, "Unsupported speed on port %d: %d\n",
520 /* Handle RX pause in all cases, with 2500base-X this is used for rate
523 mac_fc_cfg |= SYS_MAC_FC_CFG_RX_FC_ENA;
526 mac_fc_cfg |= SYS_MAC_FC_CFG_TX_FC_ENA |
527 SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) |
528 SYS_MAC_FC_CFG_FC_LATENCY_CFG(0x7) |
529 SYS_MAC_FC_CFG_ZERO_PAUSE_ENA;
531 /* Flow control. Link speed is only used here to evaluate the time
532 * specification in incoming pause frames.
534 ocelot_write_rix(ocelot, mac_fc_cfg, SYS_MAC_FC_CFG, port);
536 ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, port);
538 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, tx_pause);
540 /* Undo the effects of ocelot_phylink_mac_link_down:
543 ocelot_port_writel(ocelot_port, DEV_MAC_ENA_CFG_RX_ENA |
544 DEV_MAC_ENA_CFG_TX_ENA, DEV_MAC_ENA_CFG);
546 /* Take MAC, Port, Phy (intern) and PCS (SGMII/Serdes) clock out of
549 ocelot_port_writel(ocelot_port, DEV_CLOCK_CFG_LINK_SPEED(speed),
553 ocelot_write_gix(ocelot, ANA_PFC_PFC_CFG_FC_LINK_SPEED(speed),
554 ANA_PFC_PFC_CFG, port);
556 /* Core: Enable port for frame transfer */
557 ocelot_fields_write(ocelot, port,
558 QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
560 EXPORT_SYMBOL_GPL(ocelot_phylink_mac_link_up);
562 static void ocelot_port_add_txtstamp_skb(struct ocelot *ocelot, int port,
563 struct sk_buff *clone)
565 struct ocelot_port *ocelot_port = ocelot->ports[port];
567 spin_lock(&ocelot_port->ts_id_lock);
569 skb_shinfo(clone)->tx_flags |= SKBTX_IN_PROGRESS;
570 /* Store timestamp ID in OCELOT_SKB_CB(clone)->ts_id */
571 OCELOT_SKB_CB(clone)->ts_id = ocelot_port->ts_id;
572 ocelot_port->ts_id = (ocelot_port->ts_id + 1) % 4;
573 skb_queue_tail(&ocelot_port->tx_skbs, clone);
575 spin_unlock(&ocelot_port->ts_id_lock);
578 u32 ocelot_ptp_rew_op(struct sk_buff *skb)
580 struct sk_buff *clone = OCELOT_SKB_CB(skb)->clone;
581 u8 ptp_cmd = OCELOT_SKB_CB(skb)->ptp_cmd;
584 if (ptp_cmd == IFH_REW_OP_TWO_STEP_PTP && clone) {
586 rew_op |= OCELOT_SKB_CB(clone)->ts_id << 3;
587 } else if (ptp_cmd == IFH_REW_OP_ORIGIN_PTP) {
593 EXPORT_SYMBOL(ocelot_ptp_rew_op);
595 static bool ocelot_ptp_is_onestep_sync(struct sk_buff *skb)
597 struct ptp_header *hdr;
598 unsigned int ptp_class;
601 ptp_class = ptp_classify_raw(skb);
602 if (ptp_class == PTP_CLASS_NONE)
605 hdr = ptp_parse_header(skb, ptp_class);
609 msgtype = ptp_get_msgtype(hdr, ptp_class);
610 twostep = hdr->flag_field[0] & 0x2;
612 if (msgtype == PTP_MSGTYPE_SYNC && twostep == 0)
618 int ocelot_port_txtstamp_request(struct ocelot *ocelot, int port,
620 struct sk_buff **clone)
622 struct ocelot_port *ocelot_port = ocelot->ports[port];
623 u8 ptp_cmd = ocelot_port->ptp_cmd;
625 /* Store ptp_cmd in OCELOT_SKB_CB(skb)->ptp_cmd */
626 if (ptp_cmd == IFH_REW_OP_ORIGIN_PTP) {
627 if (ocelot_ptp_is_onestep_sync(skb)) {
628 OCELOT_SKB_CB(skb)->ptp_cmd = ptp_cmd;
632 /* Fall back to two-step timestamping */
633 ptp_cmd = IFH_REW_OP_TWO_STEP_PTP;
636 if (ptp_cmd == IFH_REW_OP_TWO_STEP_PTP) {
637 *clone = skb_clone_sk(skb);
641 ocelot_port_add_txtstamp_skb(ocelot, port, *clone);
642 OCELOT_SKB_CB(skb)->ptp_cmd = ptp_cmd;
647 EXPORT_SYMBOL(ocelot_port_txtstamp_request);
649 static void ocelot_get_hwtimestamp(struct ocelot *ocelot,
650 struct timespec64 *ts)
655 spin_lock_irqsave(&ocelot->ptp_clock_lock, flags);
657 /* Read current PTP time to get seconds */
658 val = ocelot_read_rix(ocelot, PTP_PIN_CFG, TOD_ACC_PIN);
660 val &= ~(PTP_PIN_CFG_SYNC | PTP_PIN_CFG_ACTION_MASK | PTP_PIN_CFG_DOM);
661 val |= PTP_PIN_CFG_ACTION(PTP_PIN_ACTION_SAVE);
662 ocelot_write_rix(ocelot, val, PTP_PIN_CFG, TOD_ACC_PIN);
663 ts->tv_sec = ocelot_read_rix(ocelot, PTP_PIN_TOD_SEC_LSB, TOD_ACC_PIN);
665 /* Read packet HW timestamp from FIFO */
666 val = ocelot_read(ocelot, SYS_PTP_TXSTAMP);
667 ts->tv_nsec = SYS_PTP_TXSTAMP_PTP_TXSTAMP(val);
669 /* Sec has incremented since the ts was registered */
670 if ((ts->tv_sec & 0x1) != !!(val & SYS_PTP_TXSTAMP_PTP_TXSTAMP_SEC))
673 spin_unlock_irqrestore(&ocelot->ptp_clock_lock, flags);
676 void ocelot_get_txtstamp(struct ocelot *ocelot)
678 int budget = OCELOT_PTP_QUEUE_SZ;
681 struct sk_buff *skb, *skb_tmp, *skb_match = NULL;
682 struct skb_shared_hwtstamps shhwtstamps;
683 struct ocelot_port *port;
684 struct timespec64 ts;
688 val = ocelot_read(ocelot, SYS_PTP_STATUS);
690 /* Check if a timestamp can be retrieved */
691 if (!(val & SYS_PTP_STATUS_PTP_MESS_VLD))
694 WARN_ON(val & SYS_PTP_STATUS_PTP_OVFL);
696 /* Retrieve the ts ID and Tx port */
697 id = SYS_PTP_STATUS_PTP_MESS_ID_X(val);
698 txport = SYS_PTP_STATUS_PTP_MESS_TXPORT_X(val);
700 /* Retrieve its associated skb */
701 port = ocelot->ports[txport];
703 spin_lock_irqsave(&port->tx_skbs.lock, flags);
705 skb_queue_walk_safe(&port->tx_skbs, skb, skb_tmp) {
706 if (OCELOT_SKB_CB(skb)->ts_id != id)
708 __skb_unlink(skb, &port->tx_skbs);
713 spin_unlock_irqrestore(&port->tx_skbs.lock, flags);
715 /* Get the h/w timestamp */
716 ocelot_get_hwtimestamp(ocelot, &ts);
718 if (unlikely(!skb_match))
721 /* Set the timestamp into the skb */
722 memset(&shhwtstamps, 0, sizeof(shhwtstamps));
723 shhwtstamps.hwtstamp = ktime_set(ts.tv_sec, ts.tv_nsec);
724 skb_complete_tx_timestamp(skb_match, &shhwtstamps);
727 ocelot_write(ocelot, SYS_PTP_NXT_PTP_NXT, SYS_PTP_NXT);
730 EXPORT_SYMBOL(ocelot_get_txtstamp);
732 static int ocelot_rx_frame_word(struct ocelot *ocelot, u8 grp, bool ifh,
735 u32 bytes_valid, val;
737 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
738 if (val == XTR_NOT_READY) {
743 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
744 } while (val == XTR_NOT_READY);
755 bytes_valid = XTR_VALID_BYTES(val);
756 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
757 if (val == XTR_ESCAPE)
758 *rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
764 *rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
774 static int ocelot_xtr_poll_xfh(struct ocelot *ocelot, int grp, u32 *xfh)
778 for (i = 0; i < OCELOT_TAG_LEN / 4; i++) {
779 err = ocelot_rx_frame_word(ocelot, grp, true, &xfh[i]);
781 return (err < 0) ? err : -EIO;
787 int ocelot_xtr_poll_frame(struct ocelot *ocelot, int grp, struct sk_buff **nskb)
789 struct skb_shared_hwtstamps *shhwtstamps;
790 u64 tod_in_ns, full_ts_in_ns;
791 u64 timestamp, src_port, len;
792 u32 xfh[OCELOT_TAG_LEN / 4];
793 struct net_device *dev;
794 struct timespec64 ts;
800 err = ocelot_xtr_poll_xfh(ocelot, grp, xfh);
804 ocelot_xfh_get_src_port(xfh, &src_port);
805 ocelot_xfh_get_len(xfh, &len);
806 ocelot_xfh_get_rew_val(xfh, ×tamp);
808 if (WARN_ON(src_port >= ocelot->num_phys_ports))
811 dev = ocelot->ops->port_to_netdev(ocelot, src_port);
815 skb = netdev_alloc_skb(dev, len);
816 if (unlikely(!skb)) {
817 netdev_err(dev, "Unable to allocate sk_buff\n");
821 buf_len = len - ETH_FCS_LEN;
822 buf = (u32 *)skb_put(skb, buf_len);
826 sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
833 } while (len < buf_len);
836 sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
842 /* Update the statistics if part of the FCS was read before */
843 len -= ETH_FCS_LEN - sz;
845 if (unlikely(dev->features & NETIF_F_RXFCS)) {
846 buf = (u32 *)skb_put(skb, ETH_FCS_LEN);
851 ocelot_ptp_gettime64(&ocelot->ptp_info, &ts);
853 tod_in_ns = ktime_set(ts.tv_sec, ts.tv_nsec);
854 if ((tod_in_ns & 0xffffffff) < timestamp)
855 full_ts_in_ns = (((tod_in_ns >> 32) - 1) << 32) |
858 full_ts_in_ns = (tod_in_ns & GENMASK_ULL(63, 32)) |
861 shhwtstamps = skb_hwtstamps(skb);
862 memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps));
863 shhwtstamps->hwtstamp = full_ts_in_ns;
866 /* Everything we see on an interface that is in the HW bridge
867 * has already been forwarded.
869 if (ocelot->ports[src_port]->bridge)
870 skb->offload_fwd_mark = 1;
872 skb->protocol = eth_type_trans(skb, dev);
882 EXPORT_SYMBOL(ocelot_xtr_poll_frame);
884 bool ocelot_can_inject(struct ocelot *ocelot, int grp)
886 u32 val = ocelot_read(ocelot, QS_INJ_STATUS);
888 if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))))
890 if (val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp)))
895 EXPORT_SYMBOL(ocelot_can_inject);
897 void ocelot_port_inject_frame(struct ocelot *ocelot, int port, int grp,
898 u32 rew_op, struct sk_buff *skb)
900 u32 ifh[OCELOT_TAG_LEN / 4] = {0};
901 unsigned int i, count, last;
903 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
904 QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp);
906 ocelot_ifh_set_bypass(ifh, 1);
907 ocelot_ifh_set_dest(ifh, BIT_ULL(port));
908 ocelot_ifh_set_tag_type(ifh, IFH_TAG_TYPE_C);
909 ocelot_ifh_set_vid(ifh, skb_vlan_tag_get(skb));
910 ocelot_ifh_set_rew_op(ifh, rew_op);
912 for (i = 0; i < OCELOT_TAG_LEN / 4; i++)
913 ocelot_write_rix(ocelot, ifh[i], QS_INJ_WR, grp);
915 count = DIV_ROUND_UP(skb->len, 4);
917 for (i = 0; i < count; i++)
918 ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp);
921 while (i < (OCELOT_BUFFER_CELL_SZ / 4)) {
922 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
926 /* Indicate EOF and valid bytes in last word */
927 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
928 QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) |
933 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
934 skb_tx_timestamp(skb);
936 skb->dev->stats.tx_packets++;
937 skb->dev->stats.tx_bytes += skb->len;
939 EXPORT_SYMBOL(ocelot_port_inject_frame);
941 void ocelot_drain_cpu_queue(struct ocelot *ocelot, int grp)
943 while (ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp))
944 ocelot_read_rix(ocelot, QS_XTR_RD, grp);
946 EXPORT_SYMBOL(ocelot_drain_cpu_queue);
948 int ocelot_fdb_add(struct ocelot *ocelot, int port,
949 const unsigned char *addr, u16 vid)
953 if (port == ocelot->npi)
956 return ocelot_mact_learn(ocelot, pgid, addr, vid, ENTRYTYPE_LOCKED);
958 EXPORT_SYMBOL(ocelot_fdb_add);
960 int ocelot_fdb_del(struct ocelot *ocelot, int port,
961 const unsigned char *addr, u16 vid)
963 return ocelot_mact_forget(ocelot, addr, vid);
965 EXPORT_SYMBOL(ocelot_fdb_del);
967 int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
968 bool is_static, void *data)
970 struct ocelot_dump_ctx *dump = data;
971 u32 portid = NETLINK_CB(dump->cb->skb).portid;
972 u32 seq = dump->cb->nlh->nlmsg_seq;
973 struct nlmsghdr *nlh;
976 if (dump->idx < dump->cb->args[2])
979 nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH,
980 sizeof(*ndm), NLM_F_MULTI);
984 ndm = nlmsg_data(nlh);
985 ndm->ndm_family = AF_BRIDGE;
988 ndm->ndm_flags = NTF_SELF;
990 ndm->ndm_ifindex = dump->dev->ifindex;
991 ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
993 if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr))
994 goto nla_put_failure;
996 if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid))
997 goto nla_put_failure;
999 nlmsg_end(dump->skb, nlh);
1006 nlmsg_cancel(dump->skb, nlh);
1009 EXPORT_SYMBOL(ocelot_port_fdb_do_dump);
1011 static int ocelot_mact_read(struct ocelot *ocelot, int port, int row, int col,
1012 struct ocelot_mact_entry *entry)
1014 u32 val, dst, macl, mach;
1017 /* Set row and column to read from */
1018 ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_M_INDEX, row);
1019 ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_BUCKET, col);
1021 /* Issue a read command */
1022 ocelot_write(ocelot,
1023 ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_READ),
1024 ANA_TABLES_MACACCESS);
1026 if (ocelot_mact_wait_for_completion(ocelot))
1029 /* Read the entry flags */
1030 val = ocelot_read(ocelot, ANA_TABLES_MACACCESS);
1031 if (!(val & ANA_TABLES_MACACCESS_VALID))
1034 /* If the entry read has another port configured as its destination,
1037 dst = (val & ANA_TABLES_MACACCESS_DEST_IDX_M) >> 3;
1041 /* Get the entry's MAC address and VLAN id */
1042 macl = ocelot_read(ocelot, ANA_TABLES_MACLDATA);
1043 mach = ocelot_read(ocelot, ANA_TABLES_MACHDATA);
1045 mac[0] = (mach >> 8) & 0xff;
1046 mac[1] = (mach >> 0) & 0xff;
1047 mac[2] = (macl >> 24) & 0xff;
1048 mac[3] = (macl >> 16) & 0xff;
1049 mac[4] = (macl >> 8) & 0xff;
1050 mac[5] = (macl >> 0) & 0xff;
1052 entry->vid = (mach >> 16) & 0xfff;
1053 ether_addr_copy(entry->mac, mac);
1058 int ocelot_fdb_dump(struct ocelot *ocelot, int port,
1059 dsa_fdb_dump_cb_t *cb, void *data)
1063 /* Loop through all the mac tables entries. */
1064 for (i = 0; i < ocelot->num_mact_rows; i++) {
1065 for (j = 0; j < 4; j++) {
1066 struct ocelot_mact_entry entry;
1070 ret = ocelot_mact_read(ocelot, port, i, j, &entry);
1071 /* If the entry is invalid (wrong port, invalid...),
1079 is_static = (entry.type == ENTRYTYPE_LOCKED);
1081 ret = cb(entry.mac, entry.vid, is_static, data);
1089 EXPORT_SYMBOL(ocelot_fdb_dump);
1091 int ocelot_hwstamp_get(struct ocelot *ocelot, int port, struct ifreq *ifr)
1093 return copy_to_user(ifr->ifr_data, &ocelot->hwtstamp_config,
1094 sizeof(ocelot->hwtstamp_config)) ? -EFAULT : 0;
1096 EXPORT_SYMBOL(ocelot_hwstamp_get);
1098 int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr)
1100 struct ocelot_port *ocelot_port = ocelot->ports[port];
1101 struct hwtstamp_config cfg;
1103 if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
1106 /* reserved for future extensions */
1110 /* Tx type sanity check */
1111 switch (cfg.tx_type) {
1112 case HWTSTAMP_TX_ON:
1113 ocelot_port->ptp_cmd = IFH_REW_OP_TWO_STEP_PTP;
1115 case HWTSTAMP_TX_ONESTEP_SYNC:
1116 /* IFH_REW_OP_ONE_STEP_PTP updates the correctional field, we
1117 * need to update the origin time.
1119 ocelot_port->ptp_cmd = IFH_REW_OP_ORIGIN_PTP;
1121 case HWTSTAMP_TX_OFF:
1122 ocelot_port->ptp_cmd = 0;
1128 mutex_lock(&ocelot->ptp_lock);
1130 switch (cfg.rx_filter) {
1131 case HWTSTAMP_FILTER_NONE:
1133 case HWTSTAMP_FILTER_ALL:
1134 case HWTSTAMP_FILTER_SOME:
1135 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
1136 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
1137 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
1138 case HWTSTAMP_FILTER_NTP_ALL:
1139 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
1140 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
1141 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
1142 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
1143 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
1144 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
1145 case HWTSTAMP_FILTER_PTP_V2_EVENT:
1146 case HWTSTAMP_FILTER_PTP_V2_SYNC:
1147 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
1148 cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
1151 mutex_unlock(&ocelot->ptp_lock);
1155 /* Commit back the result & save it */
1156 memcpy(&ocelot->hwtstamp_config, &cfg, sizeof(cfg));
1157 mutex_unlock(&ocelot->ptp_lock);
1159 return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
1161 EXPORT_SYMBOL(ocelot_hwstamp_set);
1163 void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data)
1167 if (sset != ETH_SS_STATS)
1170 for (i = 0; i < ocelot->num_stats; i++)
1171 memcpy(data + i * ETH_GSTRING_LEN, ocelot->stats_layout[i].name,
1174 EXPORT_SYMBOL(ocelot_get_strings);
1176 static void ocelot_update_stats(struct ocelot *ocelot)
1180 mutex_lock(&ocelot->stats_lock);
1182 for (i = 0; i < ocelot->num_phys_ports; i++) {
1183 /* Configure the port to read the stats from */
1184 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(i), SYS_STAT_CFG);
1186 for (j = 0; j < ocelot->num_stats; j++) {
1188 unsigned int idx = i * ocelot->num_stats + j;
1190 val = ocelot_read_rix(ocelot, SYS_COUNT_RX_OCTETS,
1191 ocelot->stats_layout[j].offset);
1193 if (val < (ocelot->stats[idx] & U32_MAX))
1194 ocelot->stats[idx] += (u64)1 << 32;
1196 ocelot->stats[idx] = (ocelot->stats[idx] &
1197 ~(u64)U32_MAX) + val;
1201 mutex_unlock(&ocelot->stats_lock);
1204 static void ocelot_check_stats_work(struct work_struct *work)
1206 struct delayed_work *del_work = to_delayed_work(work);
1207 struct ocelot *ocelot = container_of(del_work, struct ocelot,
1210 ocelot_update_stats(ocelot);
1212 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work,
1213 OCELOT_STATS_CHECK_DELAY);
1216 void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data)
1220 /* check and update now */
1221 ocelot_update_stats(ocelot);
1223 /* Copy all counters */
1224 for (i = 0; i < ocelot->num_stats; i++)
1225 *data++ = ocelot->stats[port * ocelot->num_stats + i];
1227 EXPORT_SYMBOL(ocelot_get_ethtool_stats);
1229 int ocelot_get_sset_count(struct ocelot *ocelot, int port, int sset)
1231 if (sset != ETH_SS_STATS)
1234 return ocelot->num_stats;
1236 EXPORT_SYMBOL(ocelot_get_sset_count);
1238 int ocelot_get_ts_info(struct ocelot *ocelot, int port,
1239 struct ethtool_ts_info *info)
1241 info->phc_index = ocelot->ptp_clock ?
1242 ptp_clock_index(ocelot->ptp_clock) : -1;
1243 if (info->phc_index == -1) {
1244 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE |
1245 SOF_TIMESTAMPING_RX_SOFTWARE |
1246 SOF_TIMESTAMPING_SOFTWARE;
1249 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE |
1250 SOF_TIMESTAMPING_RX_SOFTWARE |
1251 SOF_TIMESTAMPING_SOFTWARE |
1252 SOF_TIMESTAMPING_TX_HARDWARE |
1253 SOF_TIMESTAMPING_RX_HARDWARE |
1254 SOF_TIMESTAMPING_RAW_HARDWARE;
1255 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON) |
1256 BIT(HWTSTAMP_TX_ONESTEP_SYNC);
1257 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
1261 EXPORT_SYMBOL(ocelot_get_ts_info);
1263 static u32 ocelot_get_bond_mask(struct ocelot *ocelot, struct net_device *bond,
1264 bool only_active_ports)
1269 for (port = 0; port < ocelot->num_phys_ports; port++) {
1270 struct ocelot_port *ocelot_port = ocelot->ports[port];
1275 if (ocelot_port->bond == bond) {
1276 if (only_active_ports && !ocelot_port->lag_tx_active)
1286 static u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot,
1287 struct net_device *bridge)
1292 for (port = 0; port < ocelot->num_phys_ports; port++) {
1293 struct ocelot_port *ocelot_port = ocelot->ports[port];
1298 if (ocelot_port->stp_state == BR_STATE_FORWARDING &&
1299 ocelot_port->bridge == bridge)
1306 static u32 ocelot_get_dsa_8021q_cpu_mask(struct ocelot *ocelot)
1311 for (port = 0; port < ocelot->num_phys_ports; port++) {
1312 struct ocelot_port *ocelot_port = ocelot->ports[port];
1317 if (ocelot_port->is_dsa_8021q_cpu)
1324 void ocelot_apply_bridge_fwd_mask(struct ocelot *ocelot)
1326 unsigned long cpu_fwd_mask;
1329 /* If a DSA tag_8021q CPU exists, it needs to be included in the
1330 * regular forwarding path of the front ports regardless of whether
1331 * those are bridged or standalone.
1332 * If DSA tag_8021q is not used, this returns 0, which is fine because
1333 * the hardware-based CPU port module can be a destination for packets
1334 * even if it isn't part of PGID_SRC.
1336 cpu_fwd_mask = ocelot_get_dsa_8021q_cpu_mask(ocelot);
1338 /* Apply FWD mask. The loop is needed to add/remove the current port as
1339 * a source for the other ports.
1341 for (port = 0; port < ocelot->num_phys_ports; port++) {
1342 struct ocelot_port *ocelot_port = ocelot->ports[port];
1346 /* Unused ports can't send anywhere */
1348 } else if (ocelot_port->is_dsa_8021q_cpu) {
1349 /* The DSA tag_8021q CPU ports need to be able to
1350 * forward packets to all other ports except for
1353 mask = GENMASK(ocelot->num_phys_ports - 1, 0);
1354 mask &= ~cpu_fwd_mask;
1355 } else if (ocelot_port->bridge) {
1356 struct net_device *bridge = ocelot_port->bridge;
1357 struct net_device *bond = ocelot_port->bond;
1359 mask = ocelot_get_bridge_fwd_mask(ocelot, bridge);
1360 mask |= cpu_fwd_mask;
1363 mask &= ~ocelot_get_bond_mask(ocelot, bond,
1367 /* Standalone ports forward only to DSA tag_8021q CPU
1368 * ports (if those exist), or to the hardware CPU port
1371 mask = cpu_fwd_mask;
1374 ocelot_write_rix(ocelot, mask, ANA_PGID_PGID, PGID_SRC + port);
1377 EXPORT_SYMBOL(ocelot_apply_bridge_fwd_mask);
1379 void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state)
1381 struct ocelot_port *ocelot_port = ocelot->ports[port];
1384 ocelot_port->stp_state = state;
1386 if ((state == BR_STATE_LEARNING || state == BR_STATE_FORWARDING) &&
1387 ocelot_port->learn_ena)
1388 learn_ena = ANA_PORT_PORT_CFG_LEARN_ENA;
1390 ocelot_rmw_gix(ocelot, learn_ena, ANA_PORT_PORT_CFG_LEARN_ENA,
1391 ANA_PORT_PORT_CFG, port);
1393 ocelot_apply_bridge_fwd_mask(ocelot);
1395 EXPORT_SYMBOL(ocelot_bridge_stp_state_set);
1397 void ocelot_set_ageing_time(struct ocelot *ocelot, unsigned int msecs)
1399 unsigned int age_period = ANA_AUTOAGE_AGE_PERIOD(msecs / 2000);
1401 /* Setting AGE_PERIOD to zero effectively disables automatic aging,
1402 * which is clearly not what our intention is. So avoid that.
1407 ocelot_rmw(ocelot, age_period, ANA_AUTOAGE_AGE_PERIOD_M, ANA_AUTOAGE);
1409 EXPORT_SYMBOL(ocelot_set_ageing_time);
1411 static struct ocelot_multicast *ocelot_multicast_get(struct ocelot *ocelot,
1412 const unsigned char *addr,
1415 struct ocelot_multicast *mc;
1417 list_for_each_entry(mc, &ocelot->multicast, list) {
1418 if (ether_addr_equal(mc->addr, addr) && mc->vid == vid)
1425 static enum macaccess_entry_type ocelot_classify_mdb(const unsigned char *addr)
1427 if (addr[0] == 0x01 && addr[1] == 0x00 && addr[2] == 0x5e)
1428 return ENTRYTYPE_MACv4;
1429 if (addr[0] == 0x33 && addr[1] == 0x33)
1430 return ENTRYTYPE_MACv6;
1431 return ENTRYTYPE_LOCKED;
1434 static struct ocelot_pgid *ocelot_pgid_alloc(struct ocelot *ocelot, int index,
1435 unsigned long ports)
1437 struct ocelot_pgid *pgid;
1439 pgid = kzalloc(sizeof(*pgid), GFP_KERNEL);
1441 return ERR_PTR(-ENOMEM);
1443 pgid->ports = ports;
1444 pgid->index = index;
1445 refcount_set(&pgid->refcount, 1);
1446 list_add_tail(&pgid->list, &ocelot->pgids);
1451 static void ocelot_pgid_free(struct ocelot *ocelot, struct ocelot_pgid *pgid)
1453 if (!refcount_dec_and_test(&pgid->refcount))
1456 list_del(&pgid->list);
1460 static struct ocelot_pgid *ocelot_mdb_get_pgid(struct ocelot *ocelot,
1461 const struct ocelot_multicast *mc)
1463 struct ocelot_pgid *pgid;
1466 /* According to VSC7514 datasheet 3.9.1.5 IPv4 Multicast Entries and
1467 * 3.9.1.6 IPv6 Multicast Entries, "Instead of a lookup in the
1468 * destination mask table (PGID), the destination set is programmed as
1469 * part of the entry MAC address.", and the DEST_IDX is set to 0.
1471 if (mc->entry_type == ENTRYTYPE_MACv4 ||
1472 mc->entry_type == ENTRYTYPE_MACv6)
1473 return ocelot_pgid_alloc(ocelot, 0, mc->ports);
1475 list_for_each_entry(pgid, &ocelot->pgids, list) {
1476 /* When searching for a nonreserved multicast PGID, ignore the
1477 * dummy PGID of zero that we have for MACv4/MACv6 entries
1479 if (pgid->index && pgid->ports == mc->ports) {
1480 refcount_inc(&pgid->refcount);
1485 /* Search for a free index in the nonreserved multicast PGID area */
1486 for_each_nonreserved_multicast_dest_pgid(ocelot, index) {
1489 list_for_each_entry(pgid, &ocelot->pgids, list) {
1490 if (pgid->index == index) {
1497 return ocelot_pgid_alloc(ocelot, index, mc->ports);
1500 return ERR_PTR(-ENOSPC);
1503 static void ocelot_encode_ports_to_mdb(unsigned char *addr,
1504 struct ocelot_multicast *mc)
1506 ether_addr_copy(addr, mc->addr);
1508 if (mc->entry_type == ENTRYTYPE_MACv4) {
1510 addr[1] = mc->ports >> 8;
1511 addr[2] = mc->ports & 0xff;
1512 } else if (mc->entry_type == ENTRYTYPE_MACv6) {
1513 addr[0] = mc->ports >> 8;
1514 addr[1] = mc->ports & 0xff;
1518 int ocelot_port_mdb_add(struct ocelot *ocelot, int port,
1519 const struct switchdev_obj_port_mdb *mdb)
1521 unsigned char addr[ETH_ALEN];
1522 struct ocelot_multicast *mc;
1523 struct ocelot_pgid *pgid;
1526 if (port == ocelot->npi)
1527 port = ocelot->num_phys_ports;
1529 mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
1532 mc = devm_kzalloc(ocelot->dev, sizeof(*mc), GFP_KERNEL);
1536 mc->entry_type = ocelot_classify_mdb(mdb->addr);
1537 ether_addr_copy(mc->addr, mdb->addr);
1540 list_add_tail(&mc->list, &ocelot->multicast);
1542 /* Existing entry. Clean up the current port mask from
1543 * hardware now, because we'll be modifying it.
1545 ocelot_pgid_free(ocelot, mc->pgid);
1546 ocelot_encode_ports_to_mdb(addr, mc);
1547 ocelot_mact_forget(ocelot, addr, vid);
1550 mc->ports |= BIT(port);
1552 pgid = ocelot_mdb_get_pgid(ocelot, mc);
1554 dev_err(ocelot->dev,
1555 "Cannot allocate PGID for mdb %pM vid %d\n",
1557 devm_kfree(ocelot->dev, mc);
1558 return PTR_ERR(pgid);
1562 ocelot_encode_ports_to_mdb(addr, mc);
1564 if (mc->entry_type != ENTRYTYPE_MACv4 &&
1565 mc->entry_type != ENTRYTYPE_MACv6)
1566 ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
1569 return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
1572 EXPORT_SYMBOL(ocelot_port_mdb_add);
1574 int ocelot_port_mdb_del(struct ocelot *ocelot, int port,
1575 const struct switchdev_obj_port_mdb *mdb)
1577 unsigned char addr[ETH_ALEN];
1578 struct ocelot_multicast *mc;
1579 struct ocelot_pgid *pgid;
1582 if (port == ocelot->npi)
1583 port = ocelot->num_phys_ports;
1585 mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
1589 ocelot_encode_ports_to_mdb(addr, mc);
1590 ocelot_mact_forget(ocelot, addr, vid);
1592 ocelot_pgid_free(ocelot, mc->pgid);
1593 mc->ports &= ~BIT(port);
1595 list_del(&mc->list);
1596 devm_kfree(ocelot->dev, mc);
1600 /* We have a PGID with fewer ports now */
1601 pgid = ocelot_mdb_get_pgid(ocelot, mc);
1603 return PTR_ERR(pgid);
1606 ocelot_encode_ports_to_mdb(addr, mc);
1608 if (mc->entry_type != ENTRYTYPE_MACv4 &&
1609 mc->entry_type != ENTRYTYPE_MACv6)
1610 ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
1613 return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
1616 EXPORT_SYMBOL(ocelot_port_mdb_del);
1618 void ocelot_port_bridge_join(struct ocelot *ocelot, int port,
1619 struct net_device *bridge)
1621 struct ocelot_port *ocelot_port = ocelot->ports[port];
1623 ocelot_port->bridge = bridge;
1625 ocelot_apply_bridge_fwd_mask(ocelot);
1627 EXPORT_SYMBOL(ocelot_port_bridge_join);
1629 void ocelot_port_bridge_leave(struct ocelot *ocelot, int port,
1630 struct net_device *bridge)
1632 struct ocelot_port *ocelot_port = ocelot->ports[port];
1633 struct ocelot_vlan pvid = {0}, native_vlan = {0};
1635 ocelot_port->bridge = NULL;
1637 ocelot_port_set_pvid(ocelot, port, pvid);
1638 ocelot_port_set_native_vlan(ocelot, port, native_vlan);
1639 ocelot_apply_bridge_fwd_mask(ocelot);
1641 EXPORT_SYMBOL(ocelot_port_bridge_leave);
1643 static void ocelot_set_aggr_pgids(struct ocelot *ocelot)
1645 unsigned long visited = GENMASK(ocelot->num_phys_ports - 1, 0);
1648 /* Reset destination and aggregation PGIDS */
1649 for_each_unicast_dest_pgid(ocelot, port)
1650 ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
1652 for_each_aggr_pgid(ocelot, i)
1653 ocelot_write_rix(ocelot, GENMASK(ocelot->num_phys_ports - 1, 0),
1656 /* The visited ports bitmask holds the list of ports offloading any
1657 * bonding interface. Initially we mark all these ports as unvisited,
1658 * then every time we visit a port in this bitmask, we know that it is
1659 * the lowest numbered port, i.e. the one whose logical ID == physical
1660 * port ID == LAG ID. So we mark as visited all further ports in the
1661 * bitmask that are offloading the same bonding interface. This way,
1662 * we set up the aggregation PGIDs only once per bonding interface.
1664 for (port = 0; port < ocelot->num_phys_ports; port++) {
1665 struct ocelot_port *ocelot_port = ocelot->ports[port];
1667 if (!ocelot_port || !ocelot_port->bond)
1670 visited &= ~BIT(port);
1673 /* Now, set PGIDs for each active LAG */
1674 for (lag = 0; lag < ocelot->num_phys_ports; lag++) {
1675 struct net_device *bond = ocelot->ports[lag]->bond;
1676 int num_active_ports = 0;
1677 unsigned long bond_mask;
1680 if (!bond || (visited & BIT(lag)))
1683 bond_mask = ocelot_get_bond_mask(ocelot, bond, true);
1685 for_each_set_bit(port, &bond_mask, ocelot->num_phys_ports) {
1687 ocelot_write_rix(ocelot, bond_mask,
1688 ANA_PGID_PGID, port);
1689 aggr_idx[num_active_ports++] = port;
1692 for_each_aggr_pgid(ocelot, i) {
1695 ac = ocelot_read_rix(ocelot, ANA_PGID_PGID, i);
1697 /* Don't do division by zero if there was no active
1698 * port. Just make all aggregation codes zero.
1700 if (num_active_ports)
1701 ac |= BIT(aggr_idx[i % num_active_ports]);
1702 ocelot_write_rix(ocelot, ac, ANA_PGID_PGID, i);
1705 /* Mark all ports in the same LAG as visited to avoid applying
1706 * the same config again.
1708 for (port = lag; port < ocelot->num_phys_ports; port++) {
1709 struct ocelot_port *ocelot_port = ocelot->ports[port];
1714 if (ocelot_port->bond == bond)
1715 visited |= BIT(port);
1720 /* When offloading a bonding interface, the switch ports configured under the
1721 * same bond must have the same logical port ID, equal to the physical port ID
1722 * of the lowest numbered physical port in that bond. Otherwise, in standalone/
1723 * bridged mode, each port has a logical port ID equal to its physical port ID.
1725 static void ocelot_setup_logical_port_ids(struct ocelot *ocelot)
1729 for (port = 0; port < ocelot->num_phys_ports; port++) {
1730 struct ocelot_port *ocelot_port = ocelot->ports[port];
1731 struct net_device *bond;
1736 bond = ocelot_port->bond;
1738 int lag = __ffs(ocelot_get_bond_mask(ocelot, bond,
1741 ocelot_rmw_gix(ocelot,
1742 ANA_PORT_PORT_CFG_PORTID_VAL(lag),
1743 ANA_PORT_PORT_CFG_PORTID_VAL_M,
1744 ANA_PORT_PORT_CFG, port);
1746 ocelot_rmw_gix(ocelot,
1747 ANA_PORT_PORT_CFG_PORTID_VAL(port),
1748 ANA_PORT_PORT_CFG_PORTID_VAL_M,
1749 ANA_PORT_PORT_CFG, port);
1754 int ocelot_port_lag_join(struct ocelot *ocelot, int port,
1755 struct net_device *bond,
1756 struct netdev_lag_upper_info *info)
1758 if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
1761 ocelot->ports[port]->bond = bond;
1763 ocelot_setup_logical_port_ids(ocelot);
1764 ocelot_apply_bridge_fwd_mask(ocelot);
1765 ocelot_set_aggr_pgids(ocelot);
1769 EXPORT_SYMBOL(ocelot_port_lag_join);
1771 void ocelot_port_lag_leave(struct ocelot *ocelot, int port,
1772 struct net_device *bond)
1774 ocelot->ports[port]->bond = NULL;
1776 ocelot_setup_logical_port_ids(ocelot);
1777 ocelot_apply_bridge_fwd_mask(ocelot);
1778 ocelot_set_aggr_pgids(ocelot);
1780 EXPORT_SYMBOL(ocelot_port_lag_leave);
1782 void ocelot_port_lag_change(struct ocelot *ocelot, int port, bool lag_tx_active)
1784 struct ocelot_port *ocelot_port = ocelot->ports[port];
1786 ocelot_port->lag_tx_active = lag_tx_active;
1788 /* Rebalance the LAGs */
1789 ocelot_set_aggr_pgids(ocelot);
1791 EXPORT_SYMBOL(ocelot_port_lag_change);
1793 /* Configure the maximum SDU (L2 payload) on RX to the value specified in @sdu.
1794 * The length of VLAN tags is accounted for automatically via DEV_MAC_TAGS_CFG.
1795 * In the special case that it's the NPI port that we're configuring, the
1796 * length of the tag and optional prefix needs to be accounted for privately,
1797 * in order to be able to sustain communication at the requested @sdu.
1799 void ocelot_port_set_maxlen(struct ocelot *ocelot, int port, size_t sdu)
1801 struct ocelot_port *ocelot_port = ocelot->ports[port];
1802 int maxlen = sdu + ETH_HLEN + ETH_FCS_LEN;
1803 int pause_start, pause_stop;
1806 if (port == ocelot->npi) {
1807 maxlen += OCELOT_TAG_LEN;
1809 if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
1810 maxlen += OCELOT_SHORT_PREFIX_LEN;
1811 else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
1812 maxlen += OCELOT_LONG_PREFIX_LEN;
1815 ocelot_port_writel(ocelot_port, maxlen, DEV_MAC_MAXLEN_CFG);
1817 /* Set Pause watermark hysteresis */
1818 pause_start = 6 * maxlen / OCELOT_BUFFER_CELL_SZ;
1819 pause_stop = 4 * maxlen / OCELOT_BUFFER_CELL_SZ;
1820 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_START,
1822 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_STOP,
1825 /* Tail dropping watermarks */
1826 atop_tot = (ocelot->packet_buffer_size - 9 * maxlen) /
1827 OCELOT_BUFFER_CELL_SZ;
1828 atop = (9 * maxlen) / OCELOT_BUFFER_CELL_SZ;
1829 ocelot_write_rix(ocelot, ocelot->ops->wm_enc(atop), SYS_ATOP, port);
1830 ocelot_write(ocelot, ocelot->ops->wm_enc(atop_tot), SYS_ATOP_TOT_CFG);
1832 EXPORT_SYMBOL(ocelot_port_set_maxlen);
1834 int ocelot_get_max_mtu(struct ocelot *ocelot, int port)
1836 int max_mtu = 65535 - ETH_HLEN - ETH_FCS_LEN;
1838 if (port == ocelot->npi) {
1839 max_mtu -= OCELOT_TAG_LEN;
1841 if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
1842 max_mtu -= OCELOT_SHORT_PREFIX_LEN;
1843 else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
1844 max_mtu -= OCELOT_LONG_PREFIX_LEN;
1849 EXPORT_SYMBOL(ocelot_get_max_mtu);
1851 static void ocelot_port_set_learning(struct ocelot *ocelot, int port,
1854 struct ocelot_port *ocelot_port = ocelot->ports[port];
1858 val = ANA_PORT_PORT_CFG_LEARN_ENA;
1860 ocelot_rmw_gix(ocelot, val, ANA_PORT_PORT_CFG_LEARN_ENA,
1861 ANA_PORT_PORT_CFG, port);
1863 ocelot_port->learn_ena = enabled;
1866 static void ocelot_port_set_ucast_flood(struct ocelot *ocelot, int port,
1874 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_UC);
1877 static void ocelot_port_set_mcast_flood(struct ocelot *ocelot, int port,
1885 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MC);
1888 static void ocelot_port_set_bcast_flood(struct ocelot *ocelot, int port,
1896 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_BC);
1899 int ocelot_port_pre_bridge_flags(struct ocelot *ocelot, int port,
1900 struct switchdev_brport_flags flags)
1902 if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
1908 EXPORT_SYMBOL(ocelot_port_pre_bridge_flags);
1910 void ocelot_port_bridge_flags(struct ocelot *ocelot, int port,
1911 struct switchdev_brport_flags flags)
1913 if (flags.mask & BR_LEARNING)
1914 ocelot_port_set_learning(ocelot, port,
1915 !!(flags.val & BR_LEARNING));
1917 if (flags.mask & BR_FLOOD)
1918 ocelot_port_set_ucast_flood(ocelot, port,
1919 !!(flags.val & BR_FLOOD));
1921 if (flags.mask & BR_MCAST_FLOOD)
1922 ocelot_port_set_mcast_flood(ocelot, port,
1923 !!(flags.val & BR_MCAST_FLOOD));
1925 if (flags.mask & BR_BCAST_FLOOD)
1926 ocelot_port_set_bcast_flood(ocelot, port,
1927 !!(flags.val & BR_BCAST_FLOOD));
1929 EXPORT_SYMBOL(ocelot_port_bridge_flags);
1931 void ocelot_init_port(struct ocelot *ocelot, int port)
1933 struct ocelot_port *ocelot_port = ocelot->ports[port];
1935 skb_queue_head_init(&ocelot_port->tx_skbs);
1936 spin_lock_init(&ocelot_port->ts_id_lock);
1938 /* Basic L2 initialization */
1941 * FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 0
1942 * !FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 5
1944 ocelot_port_writel(ocelot_port, DEV_MAC_IFG_CFG_TX_IFG(5),
1947 /* Load seed (0) and set MAC HDX late collision */
1948 ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67) |
1949 DEV_MAC_HDX_CFG_SEED_LOAD,
1952 ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67),
1955 /* Set Max Length and maximum tags allowed */
1956 ocelot_port_set_maxlen(ocelot, port, ETH_DATA_LEN);
1957 ocelot_port_writel(ocelot_port, DEV_MAC_TAGS_CFG_TAG_ID(ETH_P_8021AD) |
1958 DEV_MAC_TAGS_CFG_VLAN_AWR_ENA |
1959 DEV_MAC_TAGS_CFG_VLAN_DBL_AWR_ENA |
1960 DEV_MAC_TAGS_CFG_VLAN_LEN_AWR_ENA,
1963 /* Set SMAC of Pause frame (00:00:00:00:00:00) */
1964 ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_HIGH_CFG);
1965 ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_LOW_CFG);
1967 /* Enable transmission of pause frames */
1968 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 1);
1970 /* Drop frames with multicast source address */
1971 ocelot_rmw_gix(ocelot, ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
1972 ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
1973 ANA_PORT_DROP_CFG, port);
1975 /* Set default VLAN and tag type to 8021Q. */
1976 ocelot_rmw_gix(ocelot, REW_PORT_VLAN_CFG_PORT_TPID(ETH_P_8021Q),
1977 REW_PORT_VLAN_CFG_PORT_TPID_M,
1978 REW_PORT_VLAN_CFG, port);
1980 /* Disable source address learning for standalone mode */
1981 ocelot_port_set_learning(ocelot, port, false);
1983 /* Set the port's initial logical port ID value, enable receiving
1984 * frames on it, and configure the MAC address learning type to
1987 ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_LEARNAUTO |
1988 ANA_PORT_PORT_CFG_RECV_ENA |
1989 ANA_PORT_PORT_CFG_PORTID_VAL(port),
1990 ANA_PORT_PORT_CFG, port);
1992 /* Enable vcap lookups */
1993 ocelot_vcap_enable(ocelot, port);
1995 EXPORT_SYMBOL(ocelot_init_port);
1997 /* Configure and enable the CPU port module, which is a set of queues
1998 * accessible through register MMIO, frame DMA or Ethernet (in case
1999 * NPI mode is used).
2001 static void ocelot_cpu_port_init(struct ocelot *ocelot)
2003 int cpu = ocelot->num_phys_ports;
2005 /* The unicast destination PGID for the CPU port module is unused */
2006 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, cpu);
2007 /* Instead set up a multicast destination PGID for traffic copied to
2008 * the CPU. Whitelisted MAC addresses like the port netdevice MAC
2009 * addresses will be copied to the CPU via this PGID.
2011 ocelot_write_rix(ocelot, BIT(cpu), ANA_PGID_PGID, PGID_CPU);
2012 ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_RECV_ENA |
2013 ANA_PORT_PORT_CFG_PORTID_VAL(cpu),
2014 ANA_PORT_PORT_CFG, cpu);
2016 /* Enable CPU port module */
2017 ocelot_fields_write(ocelot, cpu, QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
2018 /* CPU port Injection/Extraction configuration */
2019 ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_XTR_HDR,
2020 OCELOT_TAG_PREFIX_NONE);
2021 ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_INJ_HDR,
2022 OCELOT_TAG_PREFIX_NONE);
2024 /* Configure the CPU port to be VLAN aware */
2025 ocelot_write_gix(ocelot, ANA_PORT_VLAN_CFG_VLAN_VID(0) |
2026 ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
2027 ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1),
2028 ANA_PORT_VLAN_CFG, cpu);
2031 static void ocelot_detect_features(struct ocelot *ocelot)
2035 /* For Ocelot, Felix, Seville, Serval etc, SYS:MMGT:MMGT:FREECNT holds
2036 * the number of 240-byte free memory words (aka 4-cell chunks) and not
2037 * 192 bytes as the documentation incorrectly says.
2039 mmgt = ocelot_read(ocelot, SYS_MMGT);
2040 ocelot->packet_buffer_size = 240 * SYS_MMGT_FREECNT(mmgt);
2042 eq_ctrl = ocelot_read(ocelot, QSYS_EQ_CTRL);
2043 ocelot->num_frame_refs = QSYS_MMGT_EQ_CTRL_FP_FREE_CNT(eq_ctrl);
2046 int ocelot_init(struct ocelot *ocelot)
2048 char queue_name[32];
2052 if (ocelot->ops->reset) {
2053 ret = ocelot->ops->reset(ocelot);
2055 dev_err(ocelot->dev, "Switch reset failed\n");
2060 ocelot->stats = devm_kcalloc(ocelot->dev,
2061 ocelot->num_phys_ports * ocelot->num_stats,
2062 sizeof(u64), GFP_KERNEL);
2066 mutex_init(&ocelot->stats_lock);
2067 mutex_init(&ocelot->ptp_lock);
2068 spin_lock_init(&ocelot->ptp_clock_lock);
2069 snprintf(queue_name, sizeof(queue_name), "%s-stats",
2070 dev_name(ocelot->dev));
2071 ocelot->stats_queue = create_singlethread_workqueue(queue_name);
2072 if (!ocelot->stats_queue)
2075 ocelot->owq = alloc_ordered_workqueue("ocelot-owq", 0);
2077 destroy_workqueue(ocelot->stats_queue);
2081 INIT_LIST_HEAD(&ocelot->multicast);
2082 INIT_LIST_HEAD(&ocelot->pgids);
2083 ocelot_detect_features(ocelot);
2084 ocelot_mact_init(ocelot);
2085 ocelot_vlan_init(ocelot);
2086 ocelot_vcap_init(ocelot);
2087 ocelot_cpu_port_init(ocelot);
2089 for (port = 0; port < ocelot->num_phys_ports; port++) {
2090 /* Clear all counters (5 groups) */
2091 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port) |
2092 SYS_STAT_CFG_STAT_CLEAR_SHOT(0x7f),
2096 /* Only use S-Tag */
2097 ocelot_write(ocelot, ETH_P_8021AD, SYS_VLAN_ETYPE_CFG);
2099 /* Aggregation mode */
2100 ocelot_write(ocelot, ANA_AGGR_CFG_AC_SMAC_ENA |
2101 ANA_AGGR_CFG_AC_DMAC_ENA |
2102 ANA_AGGR_CFG_AC_IP4_SIPDIP_ENA |
2103 ANA_AGGR_CFG_AC_IP4_TCPUDP_ENA |
2104 ANA_AGGR_CFG_AC_IP6_FLOW_LBL_ENA |
2105 ANA_AGGR_CFG_AC_IP6_TCPUDP_ENA,
2108 /* Set MAC age time to default value. The entry is aged after
2111 ocelot_write(ocelot,
2112 ANA_AUTOAGE_AGE_PERIOD(BR_DEFAULT_AGEING_TIME / 2 / HZ),
2115 /* Disable learning for frames discarded by VLAN ingress filtering */
2116 regmap_field_write(ocelot->regfields[ANA_ADVLEARN_VLAN_CHK], 1);
2118 /* Setup frame ageing - fixed value "2 sec" - in 6.5 us units */
2119 ocelot_write(ocelot, SYS_FRM_AGING_AGE_TX_ENA |
2120 SYS_FRM_AGING_MAX_AGE(307692), SYS_FRM_AGING);
2122 /* Setup flooding PGIDs */
2123 for (i = 0; i < ocelot->num_flooding_pgids; i++)
2124 ocelot_write_rix(ocelot, ANA_FLOODING_FLD_MULTICAST(PGID_MC) |
2125 ANA_FLOODING_FLD_BROADCAST(PGID_BC) |
2126 ANA_FLOODING_FLD_UNICAST(PGID_UC),
2128 ocelot_write(ocelot, ANA_FLOODING_IPMC_FLD_MC6_DATA(PGID_MCIPV6) |
2129 ANA_FLOODING_IPMC_FLD_MC6_CTRL(PGID_MC) |
2130 ANA_FLOODING_IPMC_FLD_MC4_DATA(PGID_MCIPV4) |
2131 ANA_FLOODING_IPMC_FLD_MC4_CTRL(PGID_MC),
2134 for (port = 0; port < ocelot->num_phys_ports; port++) {
2135 /* Transmit the frame to the local port. */
2136 ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
2137 /* Do not forward BPDU frames to the front ports. */
2138 ocelot_write_gix(ocelot,
2139 ANA_PORT_CPU_FWD_BPDU_CFG_BPDU_REDIR_ENA(0xffff),
2140 ANA_PORT_CPU_FWD_BPDU_CFG,
2142 /* Ensure bridging is disabled */
2143 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_SRC + port);
2146 for_each_nonreserved_multicast_dest_pgid(ocelot, i) {
2147 u32 val = ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports - 1, 0));
2149 ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
2152 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_BLACKHOLE);
2154 /* Allow broadcast and unknown L2 multicast to the CPU. */
2155 ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2156 ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2157 ANA_PGID_PGID, PGID_MC);
2158 ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2159 ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2160 ANA_PGID_PGID, PGID_BC);
2161 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV4);
2162 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV6);
2164 /* Allow manual injection via DEVCPU_QS registers, and byte swap these
2165 * registers endianness.
2167 ocelot_write_rix(ocelot, QS_INJ_GRP_CFG_BYTE_SWAP |
2168 QS_INJ_GRP_CFG_MODE(1), QS_INJ_GRP_CFG, 0);
2169 ocelot_write_rix(ocelot, QS_XTR_GRP_CFG_BYTE_SWAP |
2170 QS_XTR_GRP_CFG_MODE(1), QS_XTR_GRP_CFG, 0);
2171 ocelot_write(ocelot, ANA_CPUQ_CFG_CPUQ_MIRROR(2) |
2172 ANA_CPUQ_CFG_CPUQ_LRN(2) |
2173 ANA_CPUQ_CFG_CPUQ_MAC_COPY(2) |
2174 ANA_CPUQ_CFG_CPUQ_SRC_COPY(2) |
2175 ANA_CPUQ_CFG_CPUQ_LOCKED_PORTMOVE(2) |
2176 ANA_CPUQ_CFG_CPUQ_ALLBRIDGE(6) |
2177 ANA_CPUQ_CFG_CPUQ_IPMC_CTRL(6) |
2178 ANA_CPUQ_CFG_CPUQ_IGMP(6) |
2179 ANA_CPUQ_CFG_CPUQ_MLD(6), ANA_CPUQ_CFG);
2180 for (i = 0; i < 16; i++)
2181 ocelot_write_rix(ocelot, ANA_CPUQ_8021_CFG_CPUQ_GARP_VAL(6) |
2182 ANA_CPUQ_8021_CFG_CPUQ_BPDU_VAL(6),
2183 ANA_CPUQ_8021_CFG, i);
2185 INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work);
2186 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work,
2187 OCELOT_STATS_CHECK_DELAY);
2191 EXPORT_SYMBOL(ocelot_init);
2193 void ocelot_deinit(struct ocelot *ocelot)
2195 cancel_delayed_work(&ocelot->stats_work);
2196 destroy_workqueue(ocelot->stats_queue);
2197 destroy_workqueue(ocelot->owq);
2198 mutex_destroy(&ocelot->stats_lock);
2200 EXPORT_SYMBOL(ocelot_deinit);
2202 void ocelot_deinit_port(struct ocelot *ocelot, int port)
2204 struct ocelot_port *ocelot_port = ocelot->ports[port];
2206 skb_queue_purge(&ocelot_port->tx_skbs);
2208 EXPORT_SYMBOL(ocelot_deinit_port);
2210 MODULE_LICENSE("Dual MIT/GPL");