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,
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) {
270 "Port already has a native VLAN: %d\n",
271 ocelot_port->native_vlan.vid);
277 EXPORT_SYMBOL(ocelot_vlan_prepare);
279 int ocelot_vlan_add(struct ocelot *ocelot, int port, u16 vid, bool pvid,
284 /* Make the port a member of the VLAN */
285 ocelot->vlan_mask[vid] |= BIT(port);
286 ret = ocelot_vlant_set_mask(ocelot, vid, ocelot->vlan_mask[vid]);
290 /* Default ingress vlan classification */
292 struct ocelot_vlan pvid_vlan;
295 pvid_vlan.valid = true;
296 ocelot_port_set_pvid(ocelot, port, pvid_vlan);
299 /* Untagged egress vlan clasification */
301 struct ocelot_vlan native_vlan;
303 native_vlan.vid = vid;
304 native_vlan.valid = true;
305 ocelot_port_set_native_vlan(ocelot, port, native_vlan);
310 EXPORT_SYMBOL(ocelot_vlan_add);
312 int ocelot_vlan_del(struct ocelot *ocelot, int port, u16 vid)
314 struct ocelot_port *ocelot_port = ocelot->ports[port];
317 /* Stop the port from being a member of the vlan */
318 ocelot->vlan_mask[vid] &= ~BIT(port);
319 ret = ocelot_vlant_set_mask(ocelot, vid, ocelot->vlan_mask[vid]);
324 if (ocelot_port->pvid_vlan.vid == vid) {
325 struct ocelot_vlan pvid_vlan = {0};
327 ocelot_port_set_pvid(ocelot, port, pvid_vlan);
331 if (ocelot_port->native_vlan.vid == vid) {
332 struct ocelot_vlan native_vlan = {0};
334 ocelot_port_set_native_vlan(ocelot, port, native_vlan);
339 EXPORT_SYMBOL(ocelot_vlan_del);
341 static void ocelot_vlan_init(struct ocelot *ocelot)
345 /* Clear VLAN table, by default all ports are members of all VLANs */
346 ocelot_write(ocelot, ANA_TABLES_VLANACCESS_CMD_INIT,
347 ANA_TABLES_VLANACCESS);
348 ocelot_vlant_wait_for_completion(ocelot);
350 /* Configure the port VLAN memberships */
351 for (vid = 1; vid < VLAN_N_VID; vid++) {
352 ocelot->vlan_mask[vid] = 0;
353 ocelot_vlant_set_mask(ocelot, vid, ocelot->vlan_mask[vid]);
356 /* Because VLAN filtering is enabled, we need VID 0 to get untagged
357 * traffic. It is added automatically if 8021q module is loaded, but
358 * we can't rely on it since module may be not loaded.
360 ocelot->vlan_mask[0] = GENMASK(ocelot->num_phys_ports - 1, 0);
361 ocelot_vlant_set_mask(ocelot, 0, ocelot->vlan_mask[0]);
363 /* Set vlan ingress filter mask to all ports but the CPU port by
366 ocelot_write(ocelot, GENMASK(ocelot->num_phys_ports - 1, 0),
369 for (port = 0; port < ocelot->num_phys_ports; port++) {
370 ocelot_write_gix(ocelot, 0, REW_PORT_VLAN_CFG, port);
371 ocelot_write_gix(ocelot, 0, REW_TAG_CFG, port);
375 static u32 ocelot_read_eq_avail(struct ocelot *ocelot, int port)
377 return ocelot_read_rix(ocelot, QSYS_SW_STATUS, port);
380 int ocelot_port_flush(struct ocelot *ocelot, int port)
382 unsigned int pause_ena;
385 /* Disable dequeuing from the egress queues */
386 ocelot_rmw_rix(ocelot, QSYS_PORT_MODE_DEQUEUE_DIS,
387 QSYS_PORT_MODE_DEQUEUE_DIS,
388 QSYS_PORT_MODE, port);
390 /* Disable flow control */
391 ocelot_fields_read(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, &pause_ena);
392 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 0);
394 /* Disable priority flow control */
395 ocelot_fields_write(ocelot, port,
396 QSYS_SWITCH_PORT_MODE_TX_PFC_ENA, 0);
398 /* Wait at least the time it takes to receive a frame of maximum length
400 * Worst-case delays for 10 kilobyte jumbo frames are:
402 * 800 μs on a 100M port
403 * 80 μs on a 1G port
404 * 32 μs on a 2.5G port
406 usleep_range(8000, 10000);
408 /* Disable half duplex backpressure. */
409 ocelot_rmw_rix(ocelot, 0, SYS_FRONT_PORT_MODE_HDX_MODE,
410 SYS_FRONT_PORT_MODE, port);
412 /* Flush the queues associated with the port. */
413 ocelot_rmw_gix(ocelot, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG_FLUSH_ENA,
416 /* Enable dequeuing from the egress queues. */
417 ocelot_rmw_rix(ocelot, 0, QSYS_PORT_MODE_DEQUEUE_DIS, QSYS_PORT_MODE,
420 /* Wait until flushing is complete. */
421 err = read_poll_timeout(ocelot_read_eq_avail, val, !val,
422 100, 2000000, false, ocelot, port);
424 /* Clear flushing again. */
425 ocelot_rmw_gix(ocelot, 0, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG, port);
427 /* Re-enable flow control */
428 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, pause_ena);
432 EXPORT_SYMBOL(ocelot_port_flush);
434 void ocelot_adjust_link(struct ocelot *ocelot, int port,
435 struct phy_device *phydev)
437 struct ocelot_port *ocelot_port = ocelot->ports[port];
440 switch (phydev->speed) {
442 speed = OCELOT_SPEED_10;
445 speed = OCELOT_SPEED_100;
448 speed = OCELOT_SPEED_1000;
449 mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA;
452 speed = OCELOT_SPEED_2500;
453 mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA;
456 dev_err(ocelot->dev, "Unsupported PHY speed on port %d: %d\n",
457 port, phydev->speed);
461 phy_print_status(phydev);
466 /* Only full duplex supported for now */
467 ocelot_port_writel(ocelot_port, DEV_MAC_MODE_CFG_FDX_ENA |
468 mode, DEV_MAC_MODE_CFG);
470 /* Disable HDX fast control */
471 ocelot_port_writel(ocelot_port, DEV_PORT_MISC_HDX_FAST_DIS,
474 /* SGMII only for now */
475 ocelot_port_writel(ocelot_port, PCS1G_MODE_CFG_SGMII_MODE_ENA,
477 ocelot_port_writel(ocelot_port, PCS1G_SD_CFG_SD_SEL, PCS1G_SD_CFG);
480 ocelot_port_writel(ocelot_port, PCS1G_CFG_PCS_ENA, PCS1G_CFG);
482 /* No aneg on SGMII */
483 ocelot_port_writel(ocelot_port, 0, PCS1G_ANEG_CFG);
486 ocelot_port_writel(ocelot_port, 0, PCS1G_LB_CFG);
488 /* Enable MAC module */
489 ocelot_port_writel(ocelot_port, DEV_MAC_ENA_CFG_RX_ENA |
490 DEV_MAC_ENA_CFG_TX_ENA, DEV_MAC_ENA_CFG);
492 /* Take MAC, Port, Phy (intern) and PCS (SGMII/Serdes) clock out of
495 ocelot_port_writel(ocelot_port, DEV_CLOCK_CFG_LINK_SPEED(speed),
499 ocelot_write_gix(ocelot, ANA_PFC_PFC_CFG_FC_LINK_SPEED(speed),
500 ANA_PFC_PFC_CFG, port);
502 /* Core: Enable port for frame transfer */
503 ocelot_fields_write(ocelot, port,
504 QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
507 ocelot_write_rix(ocelot, SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) |
508 SYS_MAC_FC_CFG_RX_FC_ENA | SYS_MAC_FC_CFG_TX_FC_ENA |
509 SYS_MAC_FC_CFG_ZERO_PAUSE_ENA |
510 SYS_MAC_FC_CFG_FC_LATENCY_CFG(0x7) |
511 SYS_MAC_FC_CFG_FC_LINK_SPEED(speed),
512 SYS_MAC_FC_CFG, port);
513 ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, port);
515 EXPORT_SYMBOL(ocelot_adjust_link);
517 void ocelot_port_enable(struct ocelot *ocelot, int port,
518 struct phy_device *phy)
520 /* Enable receiving frames on the port, and activate auto-learning of
523 ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_LEARNAUTO |
524 ANA_PORT_PORT_CFG_RECV_ENA |
525 ANA_PORT_PORT_CFG_PORTID_VAL(port),
526 ANA_PORT_PORT_CFG, port);
528 EXPORT_SYMBOL(ocelot_port_enable);
530 void ocelot_port_disable(struct ocelot *ocelot, int port)
532 struct ocelot_port *ocelot_port = ocelot->ports[port];
534 ocelot_port_writel(ocelot_port, 0, DEV_MAC_ENA_CFG);
535 ocelot_fields_write(ocelot, port, QSYS_SWITCH_PORT_MODE_PORT_ENA, 0);
537 EXPORT_SYMBOL(ocelot_port_disable);
539 static void ocelot_port_add_txtstamp_skb(struct ocelot *ocelot, int port,
540 struct sk_buff *clone)
542 struct ocelot_port *ocelot_port = ocelot->ports[port];
544 spin_lock(&ocelot_port->ts_id_lock);
546 skb_shinfo(clone)->tx_flags |= SKBTX_IN_PROGRESS;
547 /* Store timestamp ID in OCELOT_SKB_CB(clone)->ts_id */
548 OCELOT_SKB_CB(clone)->ts_id = ocelot_port->ts_id;
549 ocelot_port->ts_id = (ocelot_port->ts_id + 1) % 4;
550 skb_queue_tail(&ocelot_port->tx_skbs, clone);
552 spin_unlock(&ocelot_port->ts_id_lock);
555 u32 ocelot_ptp_rew_op(struct sk_buff *skb)
557 struct sk_buff *clone = OCELOT_SKB_CB(skb)->clone;
558 u8 ptp_cmd = OCELOT_SKB_CB(skb)->ptp_cmd;
561 if (ptp_cmd == IFH_REW_OP_TWO_STEP_PTP && clone) {
563 rew_op |= OCELOT_SKB_CB(clone)->ts_id << 3;
564 } else if (ptp_cmd == IFH_REW_OP_ORIGIN_PTP) {
570 EXPORT_SYMBOL(ocelot_ptp_rew_op);
572 static bool ocelot_ptp_is_onestep_sync(struct sk_buff *skb)
574 struct ptp_header *hdr;
575 unsigned int ptp_class;
578 ptp_class = ptp_classify_raw(skb);
579 if (ptp_class == PTP_CLASS_NONE)
582 hdr = ptp_parse_header(skb, ptp_class);
586 msgtype = ptp_get_msgtype(hdr, ptp_class);
587 twostep = hdr->flag_field[0] & 0x2;
589 if (msgtype == PTP_MSGTYPE_SYNC && twostep == 0)
595 int ocelot_port_txtstamp_request(struct ocelot *ocelot, int port,
597 struct sk_buff **clone)
599 struct ocelot_port *ocelot_port = ocelot->ports[port];
600 u8 ptp_cmd = ocelot_port->ptp_cmd;
602 /* Store ptp_cmd in OCELOT_SKB_CB(skb)->ptp_cmd */
603 if (ptp_cmd == IFH_REW_OP_ORIGIN_PTP) {
604 if (ocelot_ptp_is_onestep_sync(skb)) {
605 OCELOT_SKB_CB(skb)->ptp_cmd = ptp_cmd;
609 /* Fall back to two-step timestamping */
610 ptp_cmd = IFH_REW_OP_TWO_STEP_PTP;
613 if (ptp_cmd == IFH_REW_OP_TWO_STEP_PTP) {
614 *clone = skb_clone_sk(skb);
618 ocelot_port_add_txtstamp_skb(ocelot, port, *clone);
619 OCELOT_SKB_CB(skb)->ptp_cmd = ptp_cmd;
624 EXPORT_SYMBOL(ocelot_port_txtstamp_request);
626 static void ocelot_get_hwtimestamp(struct ocelot *ocelot,
627 struct timespec64 *ts)
632 spin_lock_irqsave(&ocelot->ptp_clock_lock, flags);
634 /* Read current PTP time to get seconds */
635 val = ocelot_read_rix(ocelot, PTP_PIN_CFG, TOD_ACC_PIN);
637 val &= ~(PTP_PIN_CFG_SYNC | PTP_PIN_CFG_ACTION_MASK | PTP_PIN_CFG_DOM);
638 val |= PTP_PIN_CFG_ACTION(PTP_PIN_ACTION_SAVE);
639 ocelot_write_rix(ocelot, val, PTP_PIN_CFG, TOD_ACC_PIN);
640 ts->tv_sec = ocelot_read_rix(ocelot, PTP_PIN_TOD_SEC_LSB, TOD_ACC_PIN);
642 /* Read packet HW timestamp from FIFO */
643 val = ocelot_read(ocelot, SYS_PTP_TXSTAMP);
644 ts->tv_nsec = SYS_PTP_TXSTAMP_PTP_TXSTAMP(val);
646 /* Sec has incremented since the ts was registered */
647 if ((ts->tv_sec & 0x1) != !!(val & SYS_PTP_TXSTAMP_PTP_TXSTAMP_SEC))
650 spin_unlock_irqrestore(&ocelot->ptp_clock_lock, flags);
653 void ocelot_get_txtstamp(struct ocelot *ocelot)
655 int budget = OCELOT_PTP_QUEUE_SZ;
658 struct sk_buff *skb, *skb_tmp, *skb_match = NULL;
659 struct skb_shared_hwtstamps shhwtstamps;
660 struct ocelot_port *port;
661 struct timespec64 ts;
665 val = ocelot_read(ocelot, SYS_PTP_STATUS);
667 /* Check if a timestamp can be retrieved */
668 if (!(val & SYS_PTP_STATUS_PTP_MESS_VLD))
671 WARN_ON(val & SYS_PTP_STATUS_PTP_OVFL);
673 /* Retrieve the ts ID and Tx port */
674 id = SYS_PTP_STATUS_PTP_MESS_ID_X(val);
675 txport = SYS_PTP_STATUS_PTP_MESS_TXPORT_X(val);
677 /* Retrieve its associated skb */
678 port = ocelot->ports[txport];
680 spin_lock_irqsave(&port->tx_skbs.lock, flags);
682 skb_queue_walk_safe(&port->tx_skbs, skb, skb_tmp) {
683 if (OCELOT_SKB_CB(skb)->ts_id != id)
685 __skb_unlink(skb, &port->tx_skbs);
690 spin_unlock_irqrestore(&port->tx_skbs.lock, flags);
692 /* Get the h/w timestamp */
693 ocelot_get_hwtimestamp(ocelot, &ts);
695 if (unlikely(!skb_match))
698 /* Set the timestamp into the skb */
699 memset(&shhwtstamps, 0, sizeof(shhwtstamps));
700 shhwtstamps.hwtstamp = ktime_set(ts.tv_sec, ts.tv_nsec);
701 skb_complete_tx_timestamp(skb_match, &shhwtstamps);
704 ocelot_write(ocelot, SYS_PTP_NXT_PTP_NXT, SYS_PTP_NXT);
707 EXPORT_SYMBOL(ocelot_get_txtstamp);
709 static int ocelot_rx_frame_word(struct ocelot *ocelot, u8 grp, bool ifh,
712 u32 bytes_valid, val;
714 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
715 if (val == XTR_NOT_READY) {
720 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
721 } while (val == XTR_NOT_READY);
732 bytes_valid = XTR_VALID_BYTES(val);
733 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
734 if (val == XTR_ESCAPE)
735 *rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
741 *rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
751 static int ocelot_xtr_poll_xfh(struct ocelot *ocelot, int grp, u32 *xfh)
755 for (i = 0; i < OCELOT_TAG_LEN / 4; i++) {
756 err = ocelot_rx_frame_word(ocelot, grp, true, &xfh[i]);
758 return (err < 0) ? err : -EIO;
764 int ocelot_xtr_poll_frame(struct ocelot *ocelot, int grp, struct sk_buff **nskb)
766 struct skb_shared_hwtstamps *shhwtstamps;
767 u64 tod_in_ns, full_ts_in_ns;
768 u64 timestamp, src_port, len;
769 u32 xfh[OCELOT_TAG_LEN / 4];
770 struct net_device *dev;
771 struct timespec64 ts;
777 err = ocelot_xtr_poll_xfh(ocelot, grp, xfh);
781 ocelot_xfh_get_src_port(xfh, &src_port);
782 ocelot_xfh_get_len(xfh, &len);
783 ocelot_xfh_get_rew_val(xfh, ×tamp);
785 if (WARN_ON(src_port >= ocelot->num_phys_ports))
788 dev = ocelot->ops->port_to_netdev(ocelot, src_port);
792 skb = netdev_alloc_skb(dev, len);
793 if (unlikely(!skb)) {
794 netdev_err(dev, "Unable to allocate sk_buff\n");
798 buf_len = len - ETH_FCS_LEN;
799 buf = (u32 *)skb_put(skb, buf_len);
803 sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
810 } while (len < buf_len);
813 sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
819 /* Update the statistics if part of the FCS was read before */
820 len -= ETH_FCS_LEN - sz;
822 if (unlikely(dev->features & NETIF_F_RXFCS)) {
823 buf = (u32 *)skb_put(skb, ETH_FCS_LEN);
828 ocelot_ptp_gettime64(&ocelot->ptp_info, &ts);
830 tod_in_ns = ktime_set(ts.tv_sec, ts.tv_nsec);
831 if ((tod_in_ns & 0xffffffff) < timestamp)
832 full_ts_in_ns = (((tod_in_ns >> 32) - 1) << 32) |
835 full_ts_in_ns = (tod_in_ns & GENMASK_ULL(63, 32)) |
838 shhwtstamps = skb_hwtstamps(skb);
839 memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps));
840 shhwtstamps->hwtstamp = full_ts_in_ns;
843 /* Everything we see on an interface that is in the HW bridge
844 * has already been forwarded.
846 if (ocelot->ports[src_port]->bridge)
847 skb->offload_fwd_mark = 1;
849 skb->protocol = eth_type_trans(skb, dev);
859 EXPORT_SYMBOL(ocelot_xtr_poll_frame);
861 bool ocelot_can_inject(struct ocelot *ocelot, int grp)
863 u32 val = ocelot_read(ocelot, QS_INJ_STATUS);
865 if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))))
867 if (val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp)))
872 EXPORT_SYMBOL(ocelot_can_inject);
874 void ocelot_port_inject_frame(struct ocelot *ocelot, int port, int grp,
875 u32 rew_op, struct sk_buff *skb)
877 u32 ifh[OCELOT_TAG_LEN / 4] = {0};
878 unsigned int i, count, last;
880 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
881 QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp);
883 ocelot_ifh_set_bypass(ifh, 1);
884 ocelot_ifh_set_dest(ifh, BIT_ULL(port));
885 ocelot_ifh_set_tag_type(ifh, IFH_TAG_TYPE_C);
886 ocelot_ifh_set_vid(ifh, skb_vlan_tag_get(skb));
887 ocelot_ifh_set_rew_op(ifh, rew_op);
889 for (i = 0; i < OCELOT_TAG_LEN / 4; i++)
890 ocelot_write_rix(ocelot, ifh[i], QS_INJ_WR, grp);
892 count = DIV_ROUND_UP(skb->len, 4);
894 for (i = 0; i < count; i++)
895 ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp);
898 while (i < (OCELOT_BUFFER_CELL_SZ / 4)) {
899 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
903 /* Indicate EOF and valid bytes in last word */
904 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
905 QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) |
910 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
911 skb_tx_timestamp(skb);
913 skb->dev->stats.tx_packets++;
914 skb->dev->stats.tx_bytes += skb->len;
916 EXPORT_SYMBOL(ocelot_port_inject_frame);
918 void ocelot_drain_cpu_queue(struct ocelot *ocelot, int grp)
920 while (ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp))
921 ocelot_read_rix(ocelot, QS_XTR_RD, grp);
923 EXPORT_SYMBOL(ocelot_drain_cpu_queue);
925 int ocelot_fdb_add(struct ocelot *ocelot, int port,
926 const unsigned char *addr, u16 vid)
930 if (port == ocelot->npi)
933 return ocelot_mact_learn(ocelot, pgid, addr, vid, ENTRYTYPE_LOCKED);
935 EXPORT_SYMBOL(ocelot_fdb_add);
937 int ocelot_fdb_del(struct ocelot *ocelot, int port,
938 const unsigned char *addr, u16 vid)
940 return ocelot_mact_forget(ocelot, addr, vid);
942 EXPORT_SYMBOL(ocelot_fdb_del);
944 int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
945 bool is_static, void *data)
947 struct ocelot_dump_ctx *dump = data;
948 u32 portid = NETLINK_CB(dump->cb->skb).portid;
949 u32 seq = dump->cb->nlh->nlmsg_seq;
950 struct nlmsghdr *nlh;
953 if (dump->idx < dump->cb->args[2])
956 nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH,
957 sizeof(*ndm), NLM_F_MULTI);
961 ndm = nlmsg_data(nlh);
962 ndm->ndm_family = AF_BRIDGE;
965 ndm->ndm_flags = NTF_SELF;
967 ndm->ndm_ifindex = dump->dev->ifindex;
968 ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
970 if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr))
971 goto nla_put_failure;
973 if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid))
974 goto nla_put_failure;
976 nlmsg_end(dump->skb, nlh);
983 nlmsg_cancel(dump->skb, nlh);
986 EXPORT_SYMBOL(ocelot_port_fdb_do_dump);
988 static int ocelot_mact_read(struct ocelot *ocelot, int port, int row, int col,
989 struct ocelot_mact_entry *entry)
991 u32 val, dst, macl, mach;
994 /* Set row and column to read from */
995 ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_M_INDEX, row);
996 ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_BUCKET, col);
998 /* Issue a read command */
1000 ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_READ),
1001 ANA_TABLES_MACACCESS);
1003 if (ocelot_mact_wait_for_completion(ocelot))
1006 /* Read the entry flags */
1007 val = ocelot_read(ocelot, ANA_TABLES_MACACCESS);
1008 if (!(val & ANA_TABLES_MACACCESS_VALID))
1011 /* If the entry read has another port configured as its destination,
1014 dst = (val & ANA_TABLES_MACACCESS_DEST_IDX_M) >> 3;
1018 /* Get the entry's MAC address and VLAN id */
1019 macl = ocelot_read(ocelot, ANA_TABLES_MACLDATA);
1020 mach = ocelot_read(ocelot, ANA_TABLES_MACHDATA);
1022 mac[0] = (mach >> 8) & 0xff;
1023 mac[1] = (mach >> 0) & 0xff;
1024 mac[2] = (macl >> 24) & 0xff;
1025 mac[3] = (macl >> 16) & 0xff;
1026 mac[4] = (macl >> 8) & 0xff;
1027 mac[5] = (macl >> 0) & 0xff;
1029 entry->vid = (mach >> 16) & 0xfff;
1030 ether_addr_copy(entry->mac, mac);
1035 int ocelot_fdb_dump(struct ocelot *ocelot, int port,
1036 dsa_fdb_dump_cb_t *cb, void *data)
1040 /* Loop through all the mac tables entries. */
1041 for (i = 0; i < ocelot->num_mact_rows; i++) {
1042 for (j = 0; j < 4; j++) {
1043 struct ocelot_mact_entry entry;
1047 ret = ocelot_mact_read(ocelot, port, i, j, &entry);
1048 /* If the entry is invalid (wrong port, invalid...),
1056 is_static = (entry.type == ENTRYTYPE_LOCKED);
1058 ret = cb(entry.mac, entry.vid, is_static, data);
1066 EXPORT_SYMBOL(ocelot_fdb_dump);
1068 int ocelot_hwstamp_get(struct ocelot *ocelot, int port, struct ifreq *ifr)
1070 return copy_to_user(ifr->ifr_data, &ocelot->hwtstamp_config,
1071 sizeof(ocelot->hwtstamp_config)) ? -EFAULT : 0;
1073 EXPORT_SYMBOL(ocelot_hwstamp_get);
1075 int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr)
1077 struct ocelot_port *ocelot_port = ocelot->ports[port];
1078 struct hwtstamp_config cfg;
1080 if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
1083 /* reserved for future extensions */
1087 /* Tx type sanity check */
1088 switch (cfg.tx_type) {
1089 case HWTSTAMP_TX_ON:
1090 ocelot_port->ptp_cmd = IFH_REW_OP_TWO_STEP_PTP;
1092 case HWTSTAMP_TX_ONESTEP_SYNC:
1093 /* IFH_REW_OP_ONE_STEP_PTP updates the correctional field, we
1094 * need to update the origin time.
1096 ocelot_port->ptp_cmd = IFH_REW_OP_ORIGIN_PTP;
1098 case HWTSTAMP_TX_OFF:
1099 ocelot_port->ptp_cmd = 0;
1105 mutex_lock(&ocelot->ptp_lock);
1107 switch (cfg.rx_filter) {
1108 case HWTSTAMP_FILTER_NONE:
1110 case HWTSTAMP_FILTER_ALL:
1111 case HWTSTAMP_FILTER_SOME:
1112 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
1113 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
1114 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
1115 case HWTSTAMP_FILTER_NTP_ALL:
1116 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
1117 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
1118 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
1119 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
1120 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
1121 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
1122 case HWTSTAMP_FILTER_PTP_V2_EVENT:
1123 case HWTSTAMP_FILTER_PTP_V2_SYNC:
1124 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
1125 cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
1128 mutex_unlock(&ocelot->ptp_lock);
1132 /* Commit back the result & save it */
1133 memcpy(&ocelot->hwtstamp_config, &cfg, sizeof(cfg));
1134 mutex_unlock(&ocelot->ptp_lock);
1136 return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
1138 EXPORT_SYMBOL(ocelot_hwstamp_set);
1140 void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data)
1144 if (sset != ETH_SS_STATS)
1147 for (i = 0; i < ocelot->num_stats; i++)
1148 memcpy(data + i * ETH_GSTRING_LEN, ocelot->stats_layout[i].name,
1151 EXPORT_SYMBOL(ocelot_get_strings);
1153 static void ocelot_update_stats(struct ocelot *ocelot)
1157 mutex_lock(&ocelot->stats_lock);
1159 for (i = 0; i < ocelot->num_phys_ports; i++) {
1160 /* Configure the port to read the stats from */
1161 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(i), SYS_STAT_CFG);
1163 for (j = 0; j < ocelot->num_stats; j++) {
1165 unsigned int idx = i * ocelot->num_stats + j;
1167 val = ocelot_read_rix(ocelot, SYS_COUNT_RX_OCTETS,
1168 ocelot->stats_layout[j].offset);
1170 if (val < (ocelot->stats[idx] & U32_MAX))
1171 ocelot->stats[idx] += (u64)1 << 32;
1173 ocelot->stats[idx] = (ocelot->stats[idx] &
1174 ~(u64)U32_MAX) + val;
1178 mutex_unlock(&ocelot->stats_lock);
1181 static void ocelot_check_stats_work(struct work_struct *work)
1183 struct delayed_work *del_work = to_delayed_work(work);
1184 struct ocelot *ocelot = container_of(del_work, struct ocelot,
1187 ocelot_update_stats(ocelot);
1189 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work,
1190 OCELOT_STATS_CHECK_DELAY);
1193 void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data)
1197 /* check and update now */
1198 ocelot_update_stats(ocelot);
1200 /* Copy all counters */
1201 for (i = 0; i < ocelot->num_stats; i++)
1202 *data++ = ocelot->stats[port * ocelot->num_stats + i];
1204 EXPORT_SYMBOL(ocelot_get_ethtool_stats);
1206 int ocelot_get_sset_count(struct ocelot *ocelot, int port, int sset)
1208 if (sset != ETH_SS_STATS)
1211 return ocelot->num_stats;
1213 EXPORT_SYMBOL(ocelot_get_sset_count);
1215 int ocelot_get_ts_info(struct ocelot *ocelot, int port,
1216 struct ethtool_ts_info *info)
1218 info->phc_index = ocelot->ptp_clock ?
1219 ptp_clock_index(ocelot->ptp_clock) : -1;
1220 if (info->phc_index == -1) {
1221 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE |
1222 SOF_TIMESTAMPING_RX_SOFTWARE |
1223 SOF_TIMESTAMPING_SOFTWARE;
1226 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE |
1227 SOF_TIMESTAMPING_RX_SOFTWARE |
1228 SOF_TIMESTAMPING_SOFTWARE |
1229 SOF_TIMESTAMPING_TX_HARDWARE |
1230 SOF_TIMESTAMPING_RX_HARDWARE |
1231 SOF_TIMESTAMPING_RAW_HARDWARE;
1232 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON) |
1233 BIT(HWTSTAMP_TX_ONESTEP_SYNC);
1234 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
1238 EXPORT_SYMBOL(ocelot_get_ts_info);
1240 static u32 ocelot_get_bond_mask(struct ocelot *ocelot, struct net_device *bond,
1241 bool only_active_ports)
1246 for (port = 0; port < ocelot->num_phys_ports; port++) {
1247 struct ocelot_port *ocelot_port = ocelot->ports[port];
1252 if (ocelot_port->bond == bond) {
1253 if (only_active_ports && !ocelot_port->lag_tx_active)
1263 static u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot,
1264 struct net_device *bridge)
1269 for (port = 0; port < ocelot->num_phys_ports; port++) {
1270 struct ocelot_port *ocelot_port = ocelot->ports[port];
1275 if (ocelot_port->stp_state == BR_STATE_FORWARDING &&
1276 ocelot_port->bridge == bridge)
1283 static u32 ocelot_get_dsa_8021q_cpu_mask(struct ocelot *ocelot)
1288 for (port = 0; port < ocelot->num_phys_ports; port++) {
1289 struct ocelot_port *ocelot_port = ocelot->ports[port];
1294 if (ocelot_port->is_dsa_8021q_cpu)
1301 void ocelot_apply_bridge_fwd_mask(struct ocelot *ocelot)
1303 unsigned long cpu_fwd_mask;
1306 /* If a DSA tag_8021q CPU exists, it needs to be included in the
1307 * regular forwarding path of the front ports regardless of whether
1308 * those are bridged or standalone.
1309 * If DSA tag_8021q is not used, this returns 0, which is fine because
1310 * the hardware-based CPU port module can be a destination for packets
1311 * even if it isn't part of PGID_SRC.
1313 cpu_fwd_mask = ocelot_get_dsa_8021q_cpu_mask(ocelot);
1315 /* Apply FWD mask. The loop is needed to add/remove the current port as
1316 * a source for the other ports.
1318 for (port = 0; port < ocelot->num_phys_ports; port++) {
1319 struct ocelot_port *ocelot_port = ocelot->ports[port];
1323 /* Unused ports can't send anywhere */
1325 } else if (ocelot_port->is_dsa_8021q_cpu) {
1326 /* The DSA tag_8021q CPU ports need to be able to
1327 * forward packets to all other ports except for
1330 mask = GENMASK(ocelot->num_phys_ports - 1, 0);
1331 mask &= ~cpu_fwd_mask;
1332 } else if (ocelot_port->bridge) {
1333 struct net_device *bridge = ocelot_port->bridge;
1334 struct net_device *bond = ocelot_port->bond;
1336 mask = ocelot_get_bridge_fwd_mask(ocelot, bridge);
1339 mask &= ~ocelot_get_bond_mask(ocelot, bond,
1343 /* Standalone ports forward only to DSA tag_8021q CPU
1344 * ports (if those exist), or to the hardware CPU port
1347 mask = cpu_fwd_mask;
1350 ocelot_write_rix(ocelot, mask, ANA_PGID_PGID, PGID_SRC + port);
1353 EXPORT_SYMBOL(ocelot_apply_bridge_fwd_mask);
1355 void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state)
1357 struct ocelot_port *ocelot_port = ocelot->ports[port];
1360 ocelot_port->stp_state = state;
1362 if ((state == BR_STATE_LEARNING || state == BR_STATE_FORWARDING) &&
1363 ocelot_port->learn_ena)
1364 learn_ena = ANA_PORT_PORT_CFG_LEARN_ENA;
1366 ocelot_rmw_gix(ocelot, learn_ena, ANA_PORT_PORT_CFG_LEARN_ENA,
1367 ANA_PORT_PORT_CFG, port);
1369 ocelot_apply_bridge_fwd_mask(ocelot);
1371 EXPORT_SYMBOL(ocelot_bridge_stp_state_set);
1373 void ocelot_set_ageing_time(struct ocelot *ocelot, unsigned int msecs)
1375 unsigned int age_period = ANA_AUTOAGE_AGE_PERIOD(msecs / 2000);
1377 /* Setting AGE_PERIOD to zero effectively disables automatic aging,
1378 * which is clearly not what our intention is. So avoid that.
1383 ocelot_rmw(ocelot, age_period, ANA_AUTOAGE_AGE_PERIOD_M, ANA_AUTOAGE);
1385 EXPORT_SYMBOL(ocelot_set_ageing_time);
1387 static struct ocelot_multicast *ocelot_multicast_get(struct ocelot *ocelot,
1388 const unsigned char *addr,
1391 struct ocelot_multicast *mc;
1393 list_for_each_entry(mc, &ocelot->multicast, list) {
1394 if (ether_addr_equal(mc->addr, addr) && mc->vid == vid)
1401 static enum macaccess_entry_type ocelot_classify_mdb(const unsigned char *addr)
1403 if (addr[0] == 0x01 && addr[1] == 0x00 && addr[2] == 0x5e)
1404 return ENTRYTYPE_MACv4;
1405 if (addr[0] == 0x33 && addr[1] == 0x33)
1406 return ENTRYTYPE_MACv6;
1407 return ENTRYTYPE_LOCKED;
1410 static struct ocelot_pgid *ocelot_pgid_alloc(struct ocelot *ocelot, int index,
1411 unsigned long ports)
1413 struct ocelot_pgid *pgid;
1415 pgid = kzalloc(sizeof(*pgid), GFP_KERNEL);
1417 return ERR_PTR(-ENOMEM);
1419 pgid->ports = ports;
1420 pgid->index = index;
1421 refcount_set(&pgid->refcount, 1);
1422 list_add_tail(&pgid->list, &ocelot->pgids);
1427 static void ocelot_pgid_free(struct ocelot *ocelot, struct ocelot_pgid *pgid)
1429 if (!refcount_dec_and_test(&pgid->refcount))
1432 list_del(&pgid->list);
1436 static struct ocelot_pgid *ocelot_mdb_get_pgid(struct ocelot *ocelot,
1437 const struct ocelot_multicast *mc)
1439 struct ocelot_pgid *pgid;
1442 /* According to VSC7514 datasheet 3.9.1.5 IPv4 Multicast Entries and
1443 * 3.9.1.6 IPv6 Multicast Entries, "Instead of a lookup in the
1444 * destination mask table (PGID), the destination set is programmed as
1445 * part of the entry MAC address.", and the DEST_IDX is set to 0.
1447 if (mc->entry_type == ENTRYTYPE_MACv4 ||
1448 mc->entry_type == ENTRYTYPE_MACv6)
1449 return ocelot_pgid_alloc(ocelot, 0, mc->ports);
1451 list_for_each_entry(pgid, &ocelot->pgids, list) {
1452 /* When searching for a nonreserved multicast PGID, ignore the
1453 * dummy PGID of zero that we have for MACv4/MACv6 entries
1455 if (pgid->index && pgid->ports == mc->ports) {
1456 refcount_inc(&pgid->refcount);
1461 /* Search for a free index in the nonreserved multicast PGID area */
1462 for_each_nonreserved_multicast_dest_pgid(ocelot, index) {
1465 list_for_each_entry(pgid, &ocelot->pgids, list) {
1466 if (pgid->index == index) {
1473 return ocelot_pgid_alloc(ocelot, index, mc->ports);
1476 return ERR_PTR(-ENOSPC);
1479 static void ocelot_encode_ports_to_mdb(unsigned char *addr,
1480 struct ocelot_multicast *mc)
1482 ether_addr_copy(addr, mc->addr);
1484 if (mc->entry_type == ENTRYTYPE_MACv4) {
1486 addr[1] = mc->ports >> 8;
1487 addr[2] = mc->ports & 0xff;
1488 } else if (mc->entry_type == ENTRYTYPE_MACv6) {
1489 addr[0] = mc->ports >> 8;
1490 addr[1] = mc->ports & 0xff;
1494 int ocelot_port_mdb_add(struct ocelot *ocelot, int port,
1495 const struct switchdev_obj_port_mdb *mdb)
1497 unsigned char addr[ETH_ALEN];
1498 struct ocelot_multicast *mc;
1499 struct ocelot_pgid *pgid;
1502 if (port == ocelot->npi)
1503 port = ocelot->num_phys_ports;
1505 mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
1508 mc = devm_kzalloc(ocelot->dev, sizeof(*mc), GFP_KERNEL);
1512 mc->entry_type = ocelot_classify_mdb(mdb->addr);
1513 ether_addr_copy(mc->addr, mdb->addr);
1516 list_add_tail(&mc->list, &ocelot->multicast);
1518 /* Existing entry. Clean up the current port mask from
1519 * hardware now, because we'll be modifying it.
1521 ocelot_pgid_free(ocelot, mc->pgid);
1522 ocelot_encode_ports_to_mdb(addr, mc);
1523 ocelot_mact_forget(ocelot, addr, vid);
1526 mc->ports |= BIT(port);
1528 pgid = ocelot_mdb_get_pgid(ocelot, mc);
1530 dev_err(ocelot->dev,
1531 "Cannot allocate PGID for mdb %pM vid %d\n",
1533 devm_kfree(ocelot->dev, mc);
1534 return PTR_ERR(pgid);
1538 ocelot_encode_ports_to_mdb(addr, mc);
1540 if (mc->entry_type != ENTRYTYPE_MACv4 &&
1541 mc->entry_type != ENTRYTYPE_MACv6)
1542 ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
1545 return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
1548 EXPORT_SYMBOL(ocelot_port_mdb_add);
1550 int ocelot_port_mdb_del(struct ocelot *ocelot, int port,
1551 const struct switchdev_obj_port_mdb *mdb)
1553 unsigned char addr[ETH_ALEN];
1554 struct ocelot_multicast *mc;
1555 struct ocelot_pgid *pgid;
1558 if (port == ocelot->npi)
1559 port = ocelot->num_phys_ports;
1561 mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
1565 ocelot_encode_ports_to_mdb(addr, mc);
1566 ocelot_mact_forget(ocelot, addr, vid);
1568 ocelot_pgid_free(ocelot, mc->pgid);
1569 mc->ports &= ~BIT(port);
1571 list_del(&mc->list);
1572 devm_kfree(ocelot->dev, mc);
1576 /* We have a PGID with fewer ports now */
1577 pgid = ocelot_mdb_get_pgid(ocelot, mc);
1579 return PTR_ERR(pgid);
1582 ocelot_encode_ports_to_mdb(addr, mc);
1584 if (mc->entry_type != ENTRYTYPE_MACv4 &&
1585 mc->entry_type != ENTRYTYPE_MACv6)
1586 ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
1589 return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
1592 EXPORT_SYMBOL(ocelot_port_mdb_del);
1594 void ocelot_port_bridge_join(struct ocelot *ocelot, int port,
1595 struct net_device *bridge)
1597 struct ocelot_port *ocelot_port = ocelot->ports[port];
1599 ocelot_port->bridge = bridge;
1601 ocelot_apply_bridge_fwd_mask(ocelot);
1603 EXPORT_SYMBOL(ocelot_port_bridge_join);
1605 void ocelot_port_bridge_leave(struct ocelot *ocelot, int port,
1606 struct net_device *bridge)
1608 struct ocelot_port *ocelot_port = ocelot->ports[port];
1609 struct ocelot_vlan pvid = {0}, native_vlan = {0};
1611 ocelot_port->bridge = NULL;
1613 ocelot_port_set_pvid(ocelot, port, pvid);
1614 ocelot_port_set_native_vlan(ocelot, port, native_vlan);
1615 ocelot_apply_bridge_fwd_mask(ocelot);
1617 EXPORT_SYMBOL(ocelot_port_bridge_leave);
1619 static void ocelot_set_aggr_pgids(struct ocelot *ocelot)
1621 unsigned long visited = GENMASK(ocelot->num_phys_ports - 1, 0);
1624 /* Reset destination and aggregation PGIDS */
1625 for_each_unicast_dest_pgid(ocelot, port)
1626 ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
1628 for_each_aggr_pgid(ocelot, i)
1629 ocelot_write_rix(ocelot, GENMASK(ocelot->num_phys_ports - 1, 0),
1632 /* The visited ports bitmask holds the list of ports offloading any
1633 * bonding interface. Initially we mark all these ports as unvisited,
1634 * then every time we visit a port in this bitmask, we know that it is
1635 * the lowest numbered port, i.e. the one whose logical ID == physical
1636 * port ID == LAG ID. So we mark as visited all further ports in the
1637 * bitmask that are offloading the same bonding interface. This way,
1638 * we set up the aggregation PGIDs only once per bonding interface.
1640 for (port = 0; port < ocelot->num_phys_ports; port++) {
1641 struct ocelot_port *ocelot_port = ocelot->ports[port];
1643 if (!ocelot_port || !ocelot_port->bond)
1646 visited &= ~BIT(port);
1649 /* Now, set PGIDs for each active LAG */
1650 for (lag = 0; lag < ocelot->num_phys_ports; lag++) {
1651 struct net_device *bond = ocelot->ports[lag]->bond;
1652 int num_active_ports = 0;
1653 unsigned long bond_mask;
1656 if (!bond || (visited & BIT(lag)))
1659 bond_mask = ocelot_get_bond_mask(ocelot, bond, true);
1661 for_each_set_bit(port, &bond_mask, ocelot->num_phys_ports) {
1663 ocelot_write_rix(ocelot, bond_mask,
1664 ANA_PGID_PGID, port);
1665 aggr_idx[num_active_ports++] = port;
1668 for_each_aggr_pgid(ocelot, i) {
1671 ac = ocelot_read_rix(ocelot, ANA_PGID_PGID, i);
1673 /* Don't do division by zero if there was no active
1674 * port. Just make all aggregation codes zero.
1676 if (num_active_ports)
1677 ac |= BIT(aggr_idx[i % num_active_ports]);
1678 ocelot_write_rix(ocelot, ac, ANA_PGID_PGID, i);
1681 /* Mark all ports in the same LAG as visited to avoid applying
1682 * the same config again.
1684 for (port = lag; port < ocelot->num_phys_ports; port++) {
1685 struct ocelot_port *ocelot_port = ocelot->ports[port];
1690 if (ocelot_port->bond == bond)
1691 visited |= BIT(port);
1696 /* When offloading a bonding interface, the switch ports configured under the
1697 * same bond must have the same logical port ID, equal to the physical port ID
1698 * of the lowest numbered physical port in that bond. Otherwise, in standalone/
1699 * bridged mode, each port has a logical port ID equal to its physical port ID.
1701 static void ocelot_setup_logical_port_ids(struct ocelot *ocelot)
1705 for (port = 0; port < ocelot->num_phys_ports; port++) {
1706 struct ocelot_port *ocelot_port = ocelot->ports[port];
1707 struct net_device *bond;
1712 bond = ocelot_port->bond;
1714 int lag = __ffs(ocelot_get_bond_mask(ocelot, bond,
1717 ocelot_rmw_gix(ocelot,
1718 ANA_PORT_PORT_CFG_PORTID_VAL(lag),
1719 ANA_PORT_PORT_CFG_PORTID_VAL_M,
1720 ANA_PORT_PORT_CFG, port);
1722 ocelot_rmw_gix(ocelot,
1723 ANA_PORT_PORT_CFG_PORTID_VAL(port),
1724 ANA_PORT_PORT_CFG_PORTID_VAL_M,
1725 ANA_PORT_PORT_CFG, port);
1730 int ocelot_port_lag_join(struct ocelot *ocelot, int port,
1731 struct net_device *bond,
1732 struct netdev_lag_upper_info *info)
1734 if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
1737 ocelot->ports[port]->bond = bond;
1739 ocelot_setup_logical_port_ids(ocelot);
1740 ocelot_apply_bridge_fwd_mask(ocelot);
1741 ocelot_set_aggr_pgids(ocelot);
1745 EXPORT_SYMBOL(ocelot_port_lag_join);
1747 void ocelot_port_lag_leave(struct ocelot *ocelot, int port,
1748 struct net_device *bond)
1750 ocelot->ports[port]->bond = NULL;
1752 ocelot_setup_logical_port_ids(ocelot);
1753 ocelot_apply_bridge_fwd_mask(ocelot);
1754 ocelot_set_aggr_pgids(ocelot);
1756 EXPORT_SYMBOL(ocelot_port_lag_leave);
1758 void ocelot_port_lag_change(struct ocelot *ocelot, int port, bool lag_tx_active)
1760 struct ocelot_port *ocelot_port = ocelot->ports[port];
1762 ocelot_port->lag_tx_active = lag_tx_active;
1764 /* Rebalance the LAGs */
1765 ocelot_set_aggr_pgids(ocelot);
1767 EXPORT_SYMBOL(ocelot_port_lag_change);
1769 /* Configure the maximum SDU (L2 payload) on RX to the value specified in @sdu.
1770 * The length of VLAN tags is accounted for automatically via DEV_MAC_TAGS_CFG.
1771 * In the special case that it's the NPI port that we're configuring, the
1772 * length of the tag and optional prefix needs to be accounted for privately,
1773 * in order to be able to sustain communication at the requested @sdu.
1775 void ocelot_port_set_maxlen(struct ocelot *ocelot, int port, size_t sdu)
1777 struct ocelot_port *ocelot_port = ocelot->ports[port];
1778 int maxlen = sdu + ETH_HLEN + ETH_FCS_LEN;
1779 int pause_start, pause_stop;
1782 if (port == ocelot->npi) {
1783 maxlen += OCELOT_TAG_LEN;
1785 if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
1786 maxlen += OCELOT_SHORT_PREFIX_LEN;
1787 else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
1788 maxlen += OCELOT_LONG_PREFIX_LEN;
1791 ocelot_port_writel(ocelot_port, maxlen, DEV_MAC_MAXLEN_CFG);
1793 /* Set Pause watermark hysteresis */
1794 pause_start = 6 * maxlen / OCELOT_BUFFER_CELL_SZ;
1795 pause_stop = 4 * maxlen / OCELOT_BUFFER_CELL_SZ;
1796 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_START,
1798 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_STOP,
1801 /* Tail dropping watermarks */
1802 atop_tot = (ocelot->packet_buffer_size - 9 * maxlen) /
1803 OCELOT_BUFFER_CELL_SZ;
1804 atop = (9 * maxlen) / OCELOT_BUFFER_CELL_SZ;
1805 ocelot_write_rix(ocelot, ocelot->ops->wm_enc(atop), SYS_ATOP, port);
1806 ocelot_write(ocelot, ocelot->ops->wm_enc(atop_tot), SYS_ATOP_TOT_CFG);
1808 EXPORT_SYMBOL(ocelot_port_set_maxlen);
1810 int ocelot_get_max_mtu(struct ocelot *ocelot, int port)
1812 int max_mtu = 65535 - ETH_HLEN - ETH_FCS_LEN;
1814 if (port == ocelot->npi) {
1815 max_mtu -= OCELOT_TAG_LEN;
1817 if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
1818 max_mtu -= OCELOT_SHORT_PREFIX_LEN;
1819 else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
1820 max_mtu -= OCELOT_LONG_PREFIX_LEN;
1825 EXPORT_SYMBOL(ocelot_get_max_mtu);
1827 static void ocelot_port_set_learning(struct ocelot *ocelot, int port,
1830 struct ocelot_port *ocelot_port = ocelot->ports[port];
1834 val = ANA_PORT_PORT_CFG_LEARN_ENA;
1836 ocelot_rmw_gix(ocelot, val, ANA_PORT_PORT_CFG_LEARN_ENA,
1837 ANA_PORT_PORT_CFG, port);
1839 ocelot_port->learn_ena = enabled;
1842 static void ocelot_port_set_ucast_flood(struct ocelot *ocelot, int port,
1850 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_UC);
1853 static void ocelot_port_set_mcast_flood(struct ocelot *ocelot, int port,
1861 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MC);
1864 static void ocelot_port_set_bcast_flood(struct ocelot *ocelot, int port,
1872 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_BC);
1875 int ocelot_port_pre_bridge_flags(struct ocelot *ocelot, int port,
1876 struct switchdev_brport_flags flags)
1878 if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
1884 EXPORT_SYMBOL(ocelot_port_pre_bridge_flags);
1886 void ocelot_port_bridge_flags(struct ocelot *ocelot, int port,
1887 struct switchdev_brport_flags flags)
1889 if (flags.mask & BR_LEARNING)
1890 ocelot_port_set_learning(ocelot, port,
1891 !!(flags.val & BR_LEARNING));
1893 if (flags.mask & BR_FLOOD)
1894 ocelot_port_set_ucast_flood(ocelot, port,
1895 !!(flags.val & BR_FLOOD));
1897 if (flags.mask & BR_MCAST_FLOOD)
1898 ocelot_port_set_mcast_flood(ocelot, port,
1899 !!(flags.val & BR_MCAST_FLOOD));
1901 if (flags.mask & BR_BCAST_FLOOD)
1902 ocelot_port_set_bcast_flood(ocelot, port,
1903 !!(flags.val & BR_BCAST_FLOOD));
1905 EXPORT_SYMBOL(ocelot_port_bridge_flags);
1907 void ocelot_init_port(struct ocelot *ocelot, int port)
1909 struct ocelot_port *ocelot_port = ocelot->ports[port];
1911 skb_queue_head_init(&ocelot_port->tx_skbs);
1912 spin_lock_init(&ocelot_port->ts_id_lock);
1914 /* Basic L2 initialization */
1917 * FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 0
1918 * !FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 5
1920 ocelot_port_writel(ocelot_port, DEV_MAC_IFG_CFG_TX_IFG(5),
1923 /* Load seed (0) and set MAC HDX late collision */
1924 ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67) |
1925 DEV_MAC_HDX_CFG_SEED_LOAD,
1928 ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67),
1931 /* Set Max Length and maximum tags allowed */
1932 ocelot_port_set_maxlen(ocelot, port, ETH_DATA_LEN);
1933 ocelot_port_writel(ocelot_port, DEV_MAC_TAGS_CFG_TAG_ID(ETH_P_8021AD) |
1934 DEV_MAC_TAGS_CFG_VLAN_AWR_ENA |
1935 DEV_MAC_TAGS_CFG_VLAN_DBL_AWR_ENA |
1936 DEV_MAC_TAGS_CFG_VLAN_LEN_AWR_ENA,
1939 /* Set SMAC of Pause frame (00:00:00:00:00:00) */
1940 ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_HIGH_CFG);
1941 ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_LOW_CFG);
1943 /* Enable transmission of pause frames */
1944 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 1);
1946 /* Drop frames with multicast source address */
1947 ocelot_rmw_gix(ocelot, ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
1948 ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
1949 ANA_PORT_DROP_CFG, port);
1951 /* Set default VLAN and tag type to 8021Q. */
1952 ocelot_rmw_gix(ocelot, REW_PORT_VLAN_CFG_PORT_TPID(ETH_P_8021Q),
1953 REW_PORT_VLAN_CFG_PORT_TPID_M,
1954 REW_PORT_VLAN_CFG, port);
1956 /* Disable source address learning for standalone mode */
1957 ocelot_port_set_learning(ocelot, port, false);
1959 /* Enable vcap lookups */
1960 ocelot_vcap_enable(ocelot, port);
1962 EXPORT_SYMBOL(ocelot_init_port);
1964 /* Configure and enable the CPU port module, which is a set of queues
1965 * accessible through register MMIO, frame DMA or Ethernet (in case
1966 * NPI mode is used).
1968 static void ocelot_cpu_port_init(struct ocelot *ocelot)
1970 int cpu = ocelot->num_phys_ports;
1972 /* The unicast destination PGID for the CPU port module is unused */
1973 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, cpu);
1974 /* Instead set up a multicast destination PGID for traffic copied to
1975 * the CPU. Whitelisted MAC addresses like the port netdevice MAC
1976 * addresses will be copied to the CPU via this PGID.
1978 ocelot_write_rix(ocelot, BIT(cpu), ANA_PGID_PGID, PGID_CPU);
1979 ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_RECV_ENA |
1980 ANA_PORT_PORT_CFG_PORTID_VAL(cpu),
1981 ANA_PORT_PORT_CFG, cpu);
1983 /* Enable CPU port module */
1984 ocelot_fields_write(ocelot, cpu, QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
1985 /* CPU port Injection/Extraction configuration */
1986 ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_XTR_HDR,
1987 OCELOT_TAG_PREFIX_NONE);
1988 ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_INJ_HDR,
1989 OCELOT_TAG_PREFIX_NONE);
1991 /* Configure the CPU port to be VLAN aware */
1992 ocelot_write_gix(ocelot, ANA_PORT_VLAN_CFG_VLAN_VID(0) |
1993 ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
1994 ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1),
1995 ANA_PORT_VLAN_CFG, cpu);
1998 static void ocelot_detect_features(struct ocelot *ocelot)
2002 /* For Ocelot, Felix, Seville, Serval etc, SYS:MMGT:MMGT:FREECNT holds
2003 * the number of 240-byte free memory words (aka 4-cell chunks) and not
2004 * 192 bytes as the documentation incorrectly says.
2006 mmgt = ocelot_read(ocelot, SYS_MMGT);
2007 ocelot->packet_buffer_size = 240 * SYS_MMGT_FREECNT(mmgt);
2009 eq_ctrl = ocelot_read(ocelot, QSYS_EQ_CTRL);
2010 ocelot->num_frame_refs = QSYS_MMGT_EQ_CTRL_FP_FREE_CNT(eq_ctrl);
2013 int ocelot_init(struct ocelot *ocelot)
2015 char queue_name[32];
2019 if (ocelot->ops->reset) {
2020 ret = ocelot->ops->reset(ocelot);
2022 dev_err(ocelot->dev, "Switch reset failed\n");
2027 ocelot->stats = devm_kcalloc(ocelot->dev,
2028 ocelot->num_phys_ports * ocelot->num_stats,
2029 sizeof(u64), GFP_KERNEL);
2033 mutex_init(&ocelot->stats_lock);
2034 mutex_init(&ocelot->ptp_lock);
2035 spin_lock_init(&ocelot->ptp_clock_lock);
2036 snprintf(queue_name, sizeof(queue_name), "%s-stats",
2037 dev_name(ocelot->dev));
2038 ocelot->stats_queue = create_singlethread_workqueue(queue_name);
2039 if (!ocelot->stats_queue)
2042 ocelot->owq = alloc_ordered_workqueue("ocelot-owq", 0);
2044 destroy_workqueue(ocelot->stats_queue);
2048 INIT_LIST_HEAD(&ocelot->multicast);
2049 INIT_LIST_HEAD(&ocelot->pgids);
2050 ocelot_detect_features(ocelot);
2051 ocelot_mact_init(ocelot);
2052 ocelot_vlan_init(ocelot);
2053 ocelot_vcap_init(ocelot);
2054 ocelot_cpu_port_init(ocelot);
2056 for (port = 0; port < ocelot->num_phys_ports; port++) {
2057 /* Clear all counters (5 groups) */
2058 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port) |
2059 SYS_STAT_CFG_STAT_CLEAR_SHOT(0x7f),
2063 /* Only use S-Tag */
2064 ocelot_write(ocelot, ETH_P_8021AD, SYS_VLAN_ETYPE_CFG);
2066 /* Aggregation mode */
2067 ocelot_write(ocelot, ANA_AGGR_CFG_AC_SMAC_ENA |
2068 ANA_AGGR_CFG_AC_DMAC_ENA |
2069 ANA_AGGR_CFG_AC_IP4_SIPDIP_ENA |
2070 ANA_AGGR_CFG_AC_IP4_TCPUDP_ENA |
2071 ANA_AGGR_CFG_AC_IP6_FLOW_LBL_ENA |
2072 ANA_AGGR_CFG_AC_IP6_TCPUDP_ENA,
2075 /* Set MAC age time to default value. The entry is aged after
2078 ocelot_write(ocelot,
2079 ANA_AUTOAGE_AGE_PERIOD(BR_DEFAULT_AGEING_TIME / 2 / HZ),
2082 /* Disable learning for frames discarded by VLAN ingress filtering */
2083 regmap_field_write(ocelot->regfields[ANA_ADVLEARN_VLAN_CHK], 1);
2085 /* Setup frame ageing - fixed value "2 sec" - in 6.5 us units */
2086 ocelot_write(ocelot, SYS_FRM_AGING_AGE_TX_ENA |
2087 SYS_FRM_AGING_MAX_AGE(307692), SYS_FRM_AGING);
2089 /* Setup flooding PGIDs */
2090 for (i = 0; i < ocelot->num_flooding_pgids; i++)
2091 ocelot_write_rix(ocelot, ANA_FLOODING_FLD_MULTICAST(PGID_MC) |
2092 ANA_FLOODING_FLD_BROADCAST(PGID_BC) |
2093 ANA_FLOODING_FLD_UNICAST(PGID_UC),
2095 ocelot_write(ocelot, ANA_FLOODING_IPMC_FLD_MC6_DATA(PGID_MCIPV6) |
2096 ANA_FLOODING_IPMC_FLD_MC6_CTRL(PGID_MC) |
2097 ANA_FLOODING_IPMC_FLD_MC4_DATA(PGID_MCIPV4) |
2098 ANA_FLOODING_IPMC_FLD_MC4_CTRL(PGID_MC),
2101 for (port = 0; port < ocelot->num_phys_ports; port++) {
2102 /* Transmit the frame to the local port. */
2103 ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
2104 /* Do not forward BPDU frames to the front ports. */
2105 ocelot_write_gix(ocelot,
2106 ANA_PORT_CPU_FWD_BPDU_CFG_BPDU_REDIR_ENA(0xffff),
2107 ANA_PORT_CPU_FWD_BPDU_CFG,
2109 /* Ensure bridging is disabled */
2110 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_SRC + port);
2113 for_each_nonreserved_multicast_dest_pgid(ocelot, i) {
2114 u32 val = ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports - 1, 0));
2116 ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
2119 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_BLACKHOLE);
2121 /* Allow broadcast and unknown L2 multicast to the CPU. */
2122 ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2123 ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2124 ANA_PGID_PGID, PGID_MC);
2125 ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2126 ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2127 ANA_PGID_PGID, PGID_BC);
2128 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV4);
2129 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV6);
2131 /* Allow manual injection via DEVCPU_QS registers, and byte swap these
2132 * registers endianness.
2134 ocelot_write_rix(ocelot, QS_INJ_GRP_CFG_BYTE_SWAP |
2135 QS_INJ_GRP_CFG_MODE(1), QS_INJ_GRP_CFG, 0);
2136 ocelot_write_rix(ocelot, QS_XTR_GRP_CFG_BYTE_SWAP |
2137 QS_XTR_GRP_CFG_MODE(1), QS_XTR_GRP_CFG, 0);
2138 ocelot_write(ocelot, ANA_CPUQ_CFG_CPUQ_MIRROR(2) |
2139 ANA_CPUQ_CFG_CPUQ_LRN(2) |
2140 ANA_CPUQ_CFG_CPUQ_MAC_COPY(2) |
2141 ANA_CPUQ_CFG_CPUQ_SRC_COPY(2) |
2142 ANA_CPUQ_CFG_CPUQ_LOCKED_PORTMOVE(2) |
2143 ANA_CPUQ_CFG_CPUQ_ALLBRIDGE(6) |
2144 ANA_CPUQ_CFG_CPUQ_IPMC_CTRL(6) |
2145 ANA_CPUQ_CFG_CPUQ_IGMP(6) |
2146 ANA_CPUQ_CFG_CPUQ_MLD(6), ANA_CPUQ_CFG);
2147 for (i = 0; i < 16; i++)
2148 ocelot_write_rix(ocelot, ANA_CPUQ_8021_CFG_CPUQ_GARP_VAL(6) |
2149 ANA_CPUQ_8021_CFG_CPUQ_BPDU_VAL(6),
2150 ANA_CPUQ_8021_CFG, i);
2152 INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work);
2153 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work,
2154 OCELOT_STATS_CHECK_DELAY);
2158 EXPORT_SYMBOL(ocelot_init);
2160 void ocelot_deinit(struct ocelot *ocelot)
2162 cancel_delayed_work(&ocelot->stats_work);
2163 destroy_workqueue(ocelot->stats_queue);
2164 destroy_workqueue(ocelot->owq);
2165 mutex_destroy(&ocelot->stats_lock);
2167 EXPORT_SYMBOL(ocelot_deinit);
2169 void ocelot_deinit_port(struct ocelot *ocelot, int port)
2171 struct ocelot_port *ocelot_port = ocelot->ports[port];
2173 skb_queue_purge(&ocelot_port->tx_skbs);
2175 EXPORT_SYMBOL(ocelot_deinit_port);
2177 MODULE_LICENSE("Dual MIT/GPL");