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_disable(struct ocelot *ocelot, int port)
519 struct ocelot_port *ocelot_port = ocelot->ports[port];
521 ocelot_port_writel(ocelot_port, 0, DEV_MAC_ENA_CFG);
522 ocelot_fields_write(ocelot, port, QSYS_SWITCH_PORT_MODE_PORT_ENA, 0);
524 EXPORT_SYMBOL(ocelot_port_disable);
526 static void ocelot_port_add_txtstamp_skb(struct ocelot *ocelot, int port,
527 struct sk_buff *clone)
529 struct ocelot_port *ocelot_port = ocelot->ports[port];
531 spin_lock(&ocelot_port->ts_id_lock);
533 skb_shinfo(clone)->tx_flags |= SKBTX_IN_PROGRESS;
534 /* Store timestamp ID in OCELOT_SKB_CB(clone)->ts_id */
535 OCELOT_SKB_CB(clone)->ts_id = ocelot_port->ts_id;
536 ocelot_port->ts_id = (ocelot_port->ts_id + 1) % 4;
537 skb_queue_tail(&ocelot_port->tx_skbs, clone);
539 spin_unlock(&ocelot_port->ts_id_lock);
542 u32 ocelot_ptp_rew_op(struct sk_buff *skb)
544 struct sk_buff *clone = OCELOT_SKB_CB(skb)->clone;
545 u8 ptp_cmd = OCELOT_SKB_CB(skb)->ptp_cmd;
548 if (ptp_cmd == IFH_REW_OP_TWO_STEP_PTP && clone) {
550 rew_op |= OCELOT_SKB_CB(clone)->ts_id << 3;
551 } else if (ptp_cmd == IFH_REW_OP_ORIGIN_PTP) {
557 EXPORT_SYMBOL(ocelot_ptp_rew_op);
559 static bool ocelot_ptp_is_onestep_sync(struct sk_buff *skb)
561 struct ptp_header *hdr;
562 unsigned int ptp_class;
565 ptp_class = ptp_classify_raw(skb);
566 if (ptp_class == PTP_CLASS_NONE)
569 hdr = ptp_parse_header(skb, ptp_class);
573 msgtype = ptp_get_msgtype(hdr, ptp_class);
574 twostep = hdr->flag_field[0] & 0x2;
576 if (msgtype == PTP_MSGTYPE_SYNC && twostep == 0)
582 int ocelot_port_txtstamp_request(struct ocelot *ocelot, int port,
584 struct sk_buff **clone)
586 struct ocelot_port *ocelot_port = ocelot->ports[port];
587 u8 ptp_cmd = ocelot_port->ptp_cmd;
589 /* Store ptp_cmd in OCELOT_SKB_CB(skb)->ptp_cmd */
590 if (ptp_cmd == IFH_REW_OP_ORIGIN_PTP) {
591 if (ocelot_ptp_is_onestep_sync(skb)) {
592 OCELOT_SKB_CB(skb)->ptp_cmd = ptp_cmd;
596 /* Fall back to two-step timestamping */
597 ptp_cmd = IFH_REW_OP_TWO_STEP_PTP;
600 if (ptp_cmd == IFH_REW_OP_TWO_STEP_PTP) {
601 *clone = skb_clone_sk(skb);
605 ocelot_port_add_txtstamp_skb(ocelot, port, *clone);
606 OCELOT_SKB_CB(skb)->ptp_cmd = ptp_cmd;
611 EXPORT_SYMBOL(ocelot_port_txtstamp_request);
613 static void ocelot_get_hwtimestamp(struct ocelot *ocelot,
614 struct timespec64 *ts)
619 spin_lock_irqsave(&ocelot->ptp_clock_lock, flags);
621 /* Read current PTP time to get seconds */
622 val = ocelot_read_rix(ocelot, PTP_PIN_CFG, TOD_ACC_PIN);
624 val &= ~(PTP_PIN_CFG_SYNC | PTP_PIN_CFG_ACTION_MASK | PTP_PIN_CFG_DOM);
625 val |= PTP_PIN_CFG_ACTION(PTP_PIN_ACTION_SAVE);
626 ocelot_write_rix(ocelot, val, PTP_PIN_CFG, TOD_ACC_PIN);
627 ts->tv_sec = ocelot_read_rix(ocelot, PTP_PIN_TOD_SEC_LSB, TOD_ACC_PIN);
629 /* Read packet HW timestamp from FIFO */
630 val = ocelot_read(ocelot, SYS_PTP_TXSTAMP);
631 ts->tv_nsec = SYS_PTP_TXSTAMP_PTP_TXSTAMP(val);
633 /* Sec has incremented since the ts was registered */
634 if ((ts->tv_sec & 0x1) != !!(val & SYS_PTP_TXSTAMP_PTP_TXSTAMP_SEC))
637 spin_unlock_irqrestore(&ocelot->ptp_clock_lock, flags);
640 void ocelot_get_txtstamp(struct ocelot *ocelot)
642 int budget = OCELOT_PTP_QUEUE_SZ;
645 struct sk_buff *skb, *skb_tmp, *skb_match = NULL;
646 struct skb_shared_hwtstamps shhwtstamps;
647 struct ocelot_port *port;
648 struct timespec64 ts;
652 val = ocelot_read(ocelot, SYS_PTP_STATUS);
654 /* Check if a timestamp can be retrieved */
655 if (!(val & SYS_PTP_STATUS_PTP_MESS_VLD))
658 WARN_ON(val & SYS_PTP_STATUS_PTP_OVFL);
660 /* Retrieve the ts ID and Tx port */
661 id = SYS_PTP_STATUS_PTP_MESS_ID_X(val);
662 txport = SYS_PTP_STATUS_PTP_MESS_TXPORT_X(val);
664 /* Retrieve its associated skb */
665 port = ocelot->ports[txport];
667 spin_lock_irqsave(&port->tx_skbs.lock, flags);
669 skb_queue_walk_safe(&port->tx_skbs, skb, skb_tmp) {
670 if (OCELOT_SKB_CB(skb)->ts_id != id)
672 __skb_unlink(skb, &port->tx_skbs);
677 spin_unlock_irqrestore(&port->tx_skbs.lock, flags);
679 /* Get the h/w timestamp */
680 ocelot_get_hwtimestamp(ocelot, &ts);
682 if (unlikely(!skb_match))
685 /* Set the timestamp into the skb */
686 memset(&shhwtstamps, 0, sizeof(shhwtstamps));
687 shhwtstamps.hwtstamp = ktime_set(ts.tv_sec, ts.tv_nsec);
688 skb_complete_tx_timestamp(skb_match, &shhwtstamps);
691 ocelot_write(ocelot, SYS_PTP_NXT_PTP_NXT, SYS_PTP_NXT);
694 EXPORT_SYMBOL(ocelot_get_txtstamp);
696 static int ocelot_rx_frame_word(struct ocelot *ocelot, u8 grp, bool ifh,
699 u32 bytes_valid, val;
701 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
702 if (val == XTR_NOT_READY) {
707 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
708 } while (val == XTR_NOT_READY);
719 bytes_valid = XTR_VALID_BYTES(val);
720 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
721 if (val == XTR_ESCAPE)
722 *rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
728 *rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
738 static int ocelot_xtr_poll_xfh(struct ocelot *ocelot, int grp, u32 *xfh)
742 for (i = 0; i < OCELOT_TAG_LEN / 4; i++) {
743 err = ocelot_rx_frame_word(ocelot, grp, true, &xfh[i]);
745 return (err < 0) ? err : -EIO;
751 int ocelot_xtr_poll_frame(struct ocelot *ocelot, int grp, struct sk_buff **nskb)
753 struct skb_shared_hwtstamps *shhwtstamps;
754 u64 tod_in_ns, full_ts_in_ns;
755 u64 timestamp, src_port, len;
756 u32 xfh[OCELOT_TAG_LEN / 4];
757 struct net_device *dev;
758 struct timespec64 ts;
764 err = ocelot_xtr_poll_xfh(ocelot, grp, xfh);
768 ocelot_xfh_get_src_port(xfh, &src_port);
769 ocelot_xfh_get_len(xfh, &len);
770 ocelot_xfh_get_rew_val(xfh, ×tamp);
772 if (WARN_ON(src_port >= ocelot->num_phys_ports))
775 dev = ocelot->ops->port_to_netdev(ocelot, src_port);
779 skb = netdev_alloc_skb(dev, len);
780 if (unlikely(!skb)) {
781 netdev_err(dev, "Unable to allocate sk_buff\n");
785 buf_len = len - ETH_FCS_LEN;
786 buf = (u32 *)skb_put(skb, buf_len);
790 sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
797 } while (len < buf_len);
800 sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
806 /* Update the statistics if part of the FCS was read before */
807 len -= ETH_FCS_LEN - sz;
809 if (unlikely(dev->features & NETIF_F_RXFCS)) {
810 buf = (u32 *)skb_put(skb, ETH_FCS_LEN);
815 ocelot_ptp_gettime64(&ocelot->ptp_info, &ts);
817 tod_in_ns = ktime_set(ts.tv_sec, ts.tv_nsec);
818 if ((tod_in_ns & 0xffffffff) < timestamp)
819 full_ts_in_ns = (((tod_in_ns >> 32) - 1) << 32) |
822 full_ts_in_ns = (tod_in_ns & GENMASK_ULL(63, 32)) |
825 shhwtstamps = skb_hwtstamps(skb);
826 memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps));
827 shhwtstamps->hwtstamp = full_ts_in_ns;
830 /* Everything we see on an interface that is in the HW bridge
831 * has already been forwarded.
833 if (ocelot->ports[src_port]->bridge)
834 skb->offload_fwd_mark = 1;
836 skb->protocol = eth_type_trans(skb, dev);
846 EXPORT_SYMBOL(ocelot_xtr_poll_frame);
848 bool ocelot_can_inject(struct ocelot *ocelot, int grp)
850 u32 val = ocelot_read(ocelot, QS_INJ_STATUS);
852 if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))))
854 if (val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp)))
859 EXPORT_SYMBOL(ocelot_can_inject);
861 void ocelot_port_inject_frame(struct ocelot *ocelot, int port, int grp,
862 u32 rew_op, struct sk_buff *skb)
864 u32 ifh[OCELOT_TAG_LEN / 4] = {0};
865 unsigned int i, count, last;
867 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
868 QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp);
870 ocelot_ifh_set_bypass(ifh, 1);
871 ocelot_ifh_set_dest(ifh, BIT_ULL(port));
872 ocelot_ifh_set_tag_type(ifh, IFH_TAG_TYPE_C);
873 ocelot_ifh_set_vid(ifh, skb_vlan_tag_get(skb));
874 ocelot_ifh_set_rew_op(ifh, rew_op);
876 for (i = 0; i < OCELOT_TAG_LEN / 4; i++)
877 ocelot_write_rix(ocelot, ifh[i], QS_INJ_WR, grp);
879 count = DIV_ROUND_UP(skb->len, 4);
881 for (i = 0; i < count; i++)
882 ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp);
885 while (i < (OCELOT_BUFFER_CELL_SZ / 4)) {
886 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
890 /* Indicate EOF and valid bytes in last word */
891 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
892 QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) |
897 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
898 skb_tx_timestamp(skb);
900 skb->dev->stats.tx_packets++;
901 skb->dev->stats.tx_bytes += skb->len;
903 EXPORT_SYMBOL(ocelot_port_inject_frame);
905 void ocelot_drain_cpu_queue(struct ocelot *ocelot, int grp)
907 while (ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp))
908 ocelot_read_rix(ocelot, QS_XTR_RD, grp);
910 EXPORT_SYMBOL(ocelot_drain_cpu_queue);
912 int ocelot_fdb_add(struct ocelot *ocelot, int port,
913 const unsigned char *addr, u16 vid)
917 if (port == ocelot->npi)
920 return ocelot_mact_learn(ocelot, pgid, addr, vid, ENTRYTYPE_LOCKED);
922 EXPORT_SYMBOL(ocelot_fdb_add);
924 int ocelot_fdb_del(struct ocelot *ocelot, int port,
925 const unsigned char *addr, u16 vid)
927 return ocelot_mact_forget(ocelot, addr, vid);
929 EXPORT_SYMBOL(ocelot_fdb_del);
931 int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
932 bool is_static, void *data)
934 struct ocelot_dump_ctx *dump = data;
935 u32 portid = NETLINK_CB(dump->cb->skb).portid;
936 u32 seq = dump->cb->nlh->nlmsg_seq;
937 struct nlmsghdr *nlh;
940 if (dump->idx < dump->cb->args[2])
943 nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH,
944 sizeof(*ndm), NLM_F_MULTI);
948 ndm = nlmsg_data(nlh);
949 ndm->ndm_family = AF_BRIDGE;
952 ndm->ndm_flags = NTF_SELF;
954 ndm->ndm_ifindex = dump->dev->ifindex;
955 ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
957 if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr))
958 goto nla_put_failure;
960 if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid))
961 goto nla_put_failure;
963 nlmsg_end(dump->skb, nlh);
970 nlmsg_cancel(dump->skb, nlh);
973 EXPORT_SYMBOL(ocelot_port_fdb_do_dump);
975 static int ocelot_mact_read(struct ocelot *ocelot, int port, int row, int col,
976 struct ocelot_mact_entry *entry)
978 u32 val, dst, macl, mach;
981 /* Set row and column to read from */
982 ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_M_INDEX, row);
983 ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_BUCKET, col);
985 /* Issue a read command */
987 ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_READ),
988 ANA_TABLES_MACACCESS);
990 if (ocelot_mact_wait_for_completion(ocelot))
993 /* Read the entry flags */
994 val = ocelot_read(ocelot, ANA_TABLES_MACACCESS);
995 if (!(val & ANA_TABLES_MACACCESS_VALID))
998 /* If the entry read has another port configured as its destination,
1001 dst = (val & ANA_TABLES_MACACCESS_DEST_IDX_M) >> 3;
1005 /* Get the entry's MAC address and VLAN id */
1006 macl = ocelot_read(ocelot, ANA_TABLES_MACLDATA);
1007 mach = ocelot_read(ocelot, ANA_TABLES_MACHDATA);
1009 mac[0] = (mach >> 8) & 0xff;
1010 mac[1] = (mach >> 0) & 0xff;
1011 mac[2] = (macl >> 24) & 0xff;
1012 mac[3] = (macl >> 16) & 0xff;
1013 mac[4] = (macl >> 8) & 0xff;
1014 mac[5] = (macl >> 0) & 0xff;
1016 entry->vid = (mach >> 16) & 0xfff;
1017 ether_addr_copy(entry->mac, mac);
1022 int ocelot_fdb_dump(struct ocelot *ocelot, int port,
1023 dsa_fdb_dump_cb_t *cb, void *data)
1027 /* Loop through all the mac tables entries. */
1028 for (i = 0; i < ocelot->num_mact_rows; i++) {
1029 for (j = 0; j < 4; j++) {
1030 struct ocelot_mact_entry entry;
1034 ret = ocelot_mact_read(ocelot, port, i, j, &entry);
1035 /* If the entry is invalid (wrong port, invalid...),
1043 is_static = (entry.type == ENTRYTYPE_LOCKED);
1045 ret = cb(entry.mac, entry.vid, is_static, data);
1053 EXPORT_SYMBOL(ocelot_fdb_dump);
1055 int ocelot_hwstamp_get(struct ocelot *ocelot, int port, struct ifreq *ifr)
1057 return copy_to_user(ifr->ifr_data, &ocelot->hwtstamp_config,
1058 sizeof(ocelot->hwtstamp_config)) ? -EFAULT : 0;
1060 EXPORT_SYMBOL(ocelot_hwstamp_get);
1062 int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr)
1064 struct ocelot_port *ocelot_port = ocelot->ports[port];
1065 struct hwtstamp_config cfg;
1067 if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
1070 /* reserved for future extensions */
1074 /* Tx type sanity check */
1075 switch (cfg.tx_type) {
1076 case HWTSTAMP_TX_ON:
1077 ocelot_port->ptp_cmd = IFH_REW_OP_TWO_STEP_PTP;
1079 case HWTSTAMP_TX_ONESTEP_SYNC:
1080 /* IFH_REW_OP_ONE_STEP_PTP updates the correctional field, we
1081 * need to update the origin time.
1083 ocelot_port->ptp_cmd = IFH_REW_OP_ORIGIN_PTP;
1085 case HWTSTAMP_TX_OFF:
1086 ocelot_port->ptp_cmd = 0;
1092 mutex_lock(&ocelot->ptp_lock);
1094 switch (cfg.rx_filter) {
1095 case HWTSTAMP_FILTER_NONE:
1097 case HWTSTAMP_FILTER_ALL:
1098 case HWTSTAMP_FILTER_SOME:
1099 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
1100 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
1101 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
1102 case HWTSTAMP_FILTER_NTP_ALL:
1103 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
1104 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
1105 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
1106 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
1107 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
1108 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
1109 case HWTSTAMP_FILTER_PTP_V2_EVENT:
1110 case HWTSTAMP_FILTER_PTP_V2_SYNC:
1111 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
1112 cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
1115 mutex_unlock(&ocelot->ptp_lock);
1119 /* Commit back the result & save it */
1120 memcpy(&ocelot->hwtstamp_config, &cfg, sizeof(cfg));
1121 mutex_unlock(&ocelot->ptp_lock);
1123 return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
1125 EXPORT_SYMBOL(ocelot_hwstamp_set);
1127 void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data)
1131 if (sset != ETH_SS_STATS)
1134 for (i = 0; i < ocelot->num_stats; i++)
1135 memcpy(data + i * ETH_GSTRING_LEN, ocelot->stats_layout[i].name,
1138 EXPORT_SYMBOL(ocelot_get_strings);
1140 static void ocelot_update_stats(struct ocelot *ocelot)
1144 mutex_lock(&ocelot->stats_lock);
1146 for (i = 0; i < ocelot->num_phys_ports; i++) {
1147 /* Configure the port to read the stats from */
1148 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(i), SYS_STAT_CFG);
1150 for (j = 0; j < ocelot->num_stats; j++) {
1152 unsigned int idx = i * ocelot->num_stats + j;
1154 val = ocelot_read_rix(ocelot, SYS_COUNT_RX_OCTETS,
1155 ocelot->stats_layout[j].offset);
1157 if (val < (ocelot->stats[idx] & U32_MAX))
1158 ocelot->stats[idx] += (u64)1 << 32;
1160 ocelot->stats[idx] = (ocelot->stats[idx] &
1161 ~(u64)U32_MAX) + val;
1165 mutex_unlock(&ocelot->stats_lock);
1168 static void ocelot_check_stats_work(struct work_struct *work)
1170 struct delayed_work *del_work = to_delayed_work(work);
1171 struct ocelot *ocelot = container_of(del_work, struct ocelot,
1174 ocelot_update_stats(ocelot);
1176 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work,
1177 OCELOT_STATS_CHECK_DELAY);
1180 void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data)
1184 /* check and update now */
1185 ocelot_update_stats(ocelot);
1187 /* Copy all counters */
1188 for (i = 0; i < ocelot->num_stats; i++)
1189 *data++ = ocelot->stats[port * ocelot->num_stats + i];
1191 EXPORT_SYMBOL(ocelot_get_ethtool_stats);
1193 int ocelot_get_sset_count(struct ocelot *ocelot, int port, int sset)
1195 if (sset != ETH_SS_STATS)
1198 return ocelot->num_stats;
1200 EXPORT_SYMBOL(ocelot_get_sset_count);
1202 int ocelot_get_ts_info(struct ocelot *ocelot, int port,
1203 struct ethtool_ts_info *info)
1205 info->phc_index = ocelot->ptp_clock ?
1206 ptp_clock_index(ocelot->ptp_clock) : -1;
1207 if (info->phc_index == -1) {
1208 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE |
1209 SOF_TIMESTAMPING_RX_SOFTWARE |
1210 SOF_TIMESTAMPING_SOFTWARE;
1213 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE |
1214 SOF_TIMESTAMPING_RX_SOFTWARE |
1215 SOF_TIMESTAMPING_SOFTWARE |
1216 SOF_TIMESTAMPING_TX_HARDWARE |
1217 SOF_TIMESTAMPING_RX_HARDWARE |
1218 SOF_TIMESTAMPING_RAW_HARDWARE;
1219 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON) |
1220 BIT(HWTSTAMP_TX_ONESTEP_SYNC);
1221 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
1225 EXPORT_SYMBOL(ocelot_get_ts_info);
1227 static u32 ocelot_get_bond_mask(struct ocelot *ocelot, struct net_device *bond,
1228 bool only_active_ports)
1233 for (port = 0; port < ocelot->num_phys_ports; port++) {
1234 struct ocelot_port *ocelot_port = ocelot->ports[port];
1239 if (ocelot_port->bond == bond) {
1240 if (only_active_ports && !ocelot_port->lag_tx_active)
1250 static u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot,
1251 struct net_device *bridge)
1256 for (port = 0; port < ocelot->num_phys_ports; port++) {
1257 struct ocelot_port *ocelot_port = ocelot->ports[port];
1262 if (ocelot_port->stp_state == BR_STATE_FORWARDING &&
1263 ocelot_port->bridge == bridge)
1270 static u32 ocelot_get_dsa_8021q_cpu_mask(struct ocelot *ocelot)
1275 for (port = 0; port < ocelot->num_phys_ports; port++) {
1276 struct ocelot_port *ocelot_port = ocelot->ports[port];
1281 if (ocelot_port->is_dsa_8021q_cpu)
1288 void ocelot_apply_bridge_fwd_mask(struct ocelot *ocelot)
1290 unsigned long cpu_fwd_mask;
1293 /* If a DSA tag_8021q CPU exists, it needs to be included in the
1294 * regular forwarding path of the front ports regardless of whether
1295 * those are bridged or standalone.
1296 * If DSA tag_8021q is not used, this returns 0, which is fine because
1297 * the hardware-based CPU port module can be a destination for packets
1298 * even if it isn't part of PGID_SRC.
1300 cpu_fwd_mask = ocelot_get_dsa_8021q_cpu_mask(ocelot);
1302 /* Apply FWD mask. The loop is needed to add/remove the current port as
1303 * a source for the other ports.
1305 for (port = 0; port < ocelot->num_phys_ports; port++) {
1306 struct ocelot_port *ocelot_port = ocelot->ports[port];
1310 /* Unused ports can't send anywhere */
1312 } else if (ocelot_port->is_dsa_8021q_cpu) {
1313 /* The DSA tag_8021q CPU ports need to be able to
1314 * forward packets to all other ports except for
1317 mask = GENMASK(ocelot->num_phys_ports - 1, 0);
1318 mask &= ~cpu_fwd_mask;
1319 } else if (ocelot_port->bridge) {
1320 struct net_device *bridge = ocelot_port->bridge;
1321 struct net_device *bond = ocelot_port->bond;
1323 mask = ocelot_get_bridge_fwd_mask(ocelot, bridge);
1326 mask &= ~ocelot_get_bond_mask(ocelot, bond,
1330 /* Standalone ports forward only to DSA tag_8021q CPU
1331 * ports (if those exist), or to the hardware CPU port
1334 mask = cpu_fwd_mask;
1337 ocelot_write_rix(ocelot, mask, ANA_PGID_PGID, PGID_SRC + port);
1340 EXPORT_SYMBOL(ocelot_apply_bridge_fwd_mask);
1342 void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state)
1344 struct ocelot_port *ocelot_port = ocelot->ports[port];
1347 ocelot_port->stp_state = state;
1349 if ((state == BR_STATE_LEARNING || state == BR_STATE_FORWARDING) &&
1350 ocelot_port->learn_ena)
1351 learn_ena = ANA_PORT_PORT_CFG_LEARN_ENA;
1353 ocelot_rmw_gix(ocelot, learn_ena, ANA_PORT_PORT_CFG_LEARN_ENA,
1354 ANA_PORT_PORT_CFG, port);
1356 ocelot_apply_bridge_fwd_mask(ocelot);
1358 EXPORT_SYMBOL(ocelot_bridge_stp_state_set);
1360 void ocelot_set_ageing_time(struct ocelot *ocelot, unsigned int msecs)
1362 unsigned int age_period = ANA_AUTOAGE_AGE_PERIOD(msecs / 2000);
1364 /* Setting AGE_PERIOD to zero effectively disables automatic aging,
1365 * which is clearly not what our intention is. So avoid that.
1370 ocelot_rmw(ocelot, age_period, ANA_AUTOAGE_AGE_PERIOD_M, ANA_AUTOAGE);
1372 EXPORT_SYMBOL(ocelot_set_ageing_time);
1374 static struct ocelot_multicast *ocelot_multicast_get(struct ocelot *ocelot,
1375 const unsigned char *addr,
1378 struct ocelot_multicast *mc;
1380 list_for_each_entry(mc, &ocelot->multicast, list) {
1381 if (ether_addr_equal(mc->addr, addr) && mc->vid == vid)
1388 static enum macaccess_entry_type ocelot_classify_mdb(const unsigned char *addr)
1390 if (addr[0] == 0x01 && addr[1] == 0x00 && addr[2] == 0x5e)
1391 return ENTRYTYPE_MACv4;
1392 if (addr[0] == 0x33 && addr[1] == 0x33)
1393 return ENTRYTYPE_MACv6;
1394 return ENTRYTYPE_LOCKED;
1397 static struct ocelot_pgid *ocelot_pgid_alloc(struct ocelot *ocelot, int index,
1398 unsigned long ports)
1400 struct ocelot_pgid *pgid;
1402 pgid = kzalloc(sizeof(*pgid), GFP_KERNEL);
1404 return ERR_PTR(-ENOMEM);
1406 pgid->ports = ports;
1407 pgid->index = index;
1408 refcount_set(&pgid->refcount, 1);
1409 list_add_tail(&pgid->list, &ocelot->pgids);
1414 static void ocelot_pgid_free(struct ocelot *ocelot, struct ocelot_pgid *pgid)
1416 if (!refcount_dec_and_test(&pgid->refcount))
1419 list_del(&pgid->list);
1423 static struct ocelot_pgid *ocelot_mdb_get_pgid(struct ocelot *ocelot,
1424 const struct ocelot_multicast *mc)
1426 struct ocelot_pgid *pgid;
1429 /* According to VSC7514 datasheet 3.9.1.5 IPv4 Multicast Entries and
1430 * 3.9.1.6 IPv6 Multicast Entries, "Instead of a lookup in the
1431 * destination mask table (PGID), the destination set is programmed as
1432 * part of the entry MAC address.", and the DEST_IDX is set to 0.
1434 if (mc->entry_type == ENTRYTYPE_MACv4 ||
1435 mc->entry_type == ENTRYTYPE_MACv6)
1436 return ocelot_pgid_alloc(ocelot, 0, mc->ports);
1438 list_for_each_entry(pgid, &ocelot->pgids, list) {
1439 /* When searching for a nonreserved multicast PGID, ignore the
1440 * dummy PGID of zero that we have for MACv4/MACv6 entries
1442 if (pgid->index && pgid->ports == mc->ports) {
1443 refcount_inc(&pgid->refcount);
1448 /* Search for a free index in the nonreserved multicast PGID area */
1449 for_each_nonreserved_multicast_dest_pgid(ocelot, index) {
1452 list_for_each_entry(pgid, &ocelot->pgids, list) {
1453 if (pgid->index == index) {
1460 return ocelot_pgid_alloc(ocelot, index, mc->ports);
1463 return ERR_PTR(-ENOSPC);
1466 static void ocelot_encode_ports_to_mdb(unsigned char *addr,
1467 struct ocelot_multicast *mc)
1469 ether_addr_copy(addr, mc->addr);
1471 if (mc->entry_type == ENTRYTYPE_MACv4) {
1473 addr[1] = mc->ports >> 8;
1474 addr[2] = mc->ports & 0xff;
1475 } else if (mc->entry_type == ENTRYTYPE_MACv6) {
1476 addr[0] = mc->ports >> 8;
1477 addr[1] = mc->ports & 0xff;
1481 int ocelot_port_mdb_add(struct ocelot *ocelot, int port,
1482 const struct switchdev_obj_port_mdb *mdb)
1484 unsigned char addr[ETH_ALEN];
1485 struct ocelot_multicast *mc;
1486 struct ocelot_pgid *pgid;
1489 if (port == ocelot->npi)
1490 port = ocelot->num_phys_ports;
1492 mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
1495 mc = devm_kzalloc(ocelot->dev, sizeof(*mc), GFP_KERNEL);
1499 mc->entry_type = ocelot_classify_mdb(mdb->addr);
1500 ether_addr_copy(mc->addr, mdb->addr);
1503 list_add_tail(&mc->list, &ocelot->multicast);
1505 /* Existing entry. Clean up the current port mask from
1506 * hardware now, because we'll be modifying it.
1508 ocelot_pgid_free(ocelot, mc->pgid);
1509 ocelot_encode_ports_to_mdb(addr, mc);
1510 ocelot_mact_forget(ocelot, addr, vid);
1513 mc->ports |= BIT(port);
1515 pgid = ocelot_mdb_get_pgid(ocelot, mc);
1517 dev_err(ocelot->dev,
1518 "Cannot allocate PGID for mdb %pM vid %d\n",
1520 devm_kfree(ocelot->dev, mc);
1521 return PTR_ERR(pgid);
1525 ocelot_encode_ports_to_mdb(addr, mc);
1527 if (mc->entry_type != ENTRYTYPE_MACv4 &&
1528 mc->entry_type != ENTRYTYPE_MACv6)
1529 ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
1532 return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
1535 EXPORT_SYMBOL(ocelot_port_mdb_add);
1537 int ocelot_port_mdb_del(struct ocelot *ocelot, int port,
1538 const struct switchdev_obj_port_mdb *mdb)
1540 unsigned char addr[ETH_ALEN];
1541 struct ocelot_multicast *mc;
1542 struct ocelot_pgid *pgid;
1545 if (port == ocelot->npi)
1546 port = ocelot->num_phys_ports;
1548 mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
1552 ocelot_encode_ports_to_mdb(addr, mc);
1553 ocelot_mact_forget(ocelot, addr, vid);
1555 ocelot_pgid_free(ocelot, mc->pgid);
1556 mc->ports &= ~BIT(port);
1558 list_del(&mc->list);
1559 devm_kfree(ocelot->dev, mc);
1563 /* We have a PGID with fewer ports now */
1564 pgid = ocelot_mdb_get_pgid(ocelot, mc);
1566 return PTR_ERR(pgid);
1569 ocelot_encode_ports_to_mdb(addr, mc);
1571 if (mc->entry_type != ENTRYTYPE_MACv4 &&
1572 mc->entry_type != ENTRYTYPE_MACv6)
1573 ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
1576 return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
1579 EXPORT_SYMBOL(ocelot_port_mdb_del);
1581 void ocelot_port_bridge_join(struct ocelot *ocelot, int port,
1582 struct net_device *bridge)
1584 struct ocelot_port *ocelot_port = ocelot->ports[port];
1586 ocelot_port->bridge = bridge;
1588 ocelot_apply_bridge_fwd_mask(ocelot);
1590 EXPORT_SYMBOL(ocelot_port_bridge_join);
1592 void ocelot_port_bridge_leave(struct ocelot *ocelot, int port,
1593 struct net_device *bridge)
1595 struct ocelot_port *ocelot_port = ocelot->ports[port];
1596 struct ocelot_vlan pvid = {0}, native_vlan = {0};
1598 ocelot_port->bridge = NULL;
1600 ocelot_port_set_pvid(ocelot, port, pvid);
1601 ocelot_port_set_native_vlan(ocelot, port, native_vlan);
1602 ocelot_apply_bridge_fwd_mask(ocelot);
1604 EXPORT_SYMBOL(ocelot_port_bridge_leave);
1606 static void ocelot_set_aggr_pgids(struct ocelot *ocelot)
1608 unsigned long visited = GENMASK(ocelot->num_phys_ports - 1, 0);
1611 /* Reset destination and aggregation PGIDS */
1612 for_each_unicast_dest_pgid(ocelot, port)
1613 ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
1615 for_each_aggr_pgid(ocelot, i)
1616 ocelot_write_rix(ocelot, GENMASK(ocelot->num_phys_ports - 1, 0),
1619 /* The visited ports bitmask holds the list of ports offloading any
1620 * bonding interface. Initially we mark all these ports as unvisited,
1621 * then every time we visit a port in this bitmask, we know that it is
1622 * the lowest numbered port, i.e. the one whose logical ID == physical
1623 * port ID == LAG ID. So we mark as visited all further ports in the
1624 * bitmask that are offloading the same bonding interface. This way,
1625 * we set up the aggregation PGIDs only once per bonding interface.
1627 for (port = 0; port < ocelot->num_phys_ports; port++) {
1628 struct ocelot_port *ocelot_port = ocelot->ports[port];
1630 if (!ocelot_port || !ocelot_port->bond)
1633 visited &= ~BIT(port);
1636 /* Now, set PGIDs for each active LAG */
1637 for (lag = 0; lag < ocelot->num_phys_ports; lag++) {
1638 struct net_device *bond = ocelot->ports[lag]->bond;
1639 int num_active_ports = 0;
1640 unsigned long bond_mask;
1643 if (!bond || (visited & BIT(lag)))
1646 bond_mask = ocelot_get_bond_mask(ocelot, bond, true);
1648 for_each_set_bit(port, &bond_mask, ocelot->num_phys_ports) {
1650 ocelot_write_rix(ocelot, bond_mask,
1651 ANA_PGID_PGID, port);
1652 aggr_idx[num_active_ports++] = port;
1655 for_each_aggr_pgid(ocelot, i) {
1658 ac = ocelot_read_rix(ocelot, ANA_PGID_PGID, i);
1660 /* Don't do division by zero if there was no active
1661 * port. Just make all aggregation codes zero.
1663 if (num_active_ports)
1664 ac |= BIT(aggr_idx[i % num_active_ports]);
1665 ocelot_write_rix(ocelot, ac, ANA_PGID_PGID, i);
1668 /* Mark all ports in the same LAG as visited to avoid applying
1669 * the same config again.
1671 for (port = lag; port < ocelot->num_phys_ports; port++) {
1672 struct ocelot_port *ocelot_port = ocelot->ports[port];
1677 if (ocelot_port->bond == bond)
1678 visited |= BIT(port);
1683 /* When offloading a bonding interface, the switch ports configured under the
1684 * same bond must have the same logical port ID, equal to the physical port ID
1685 * of the lowest numbered physical port in that bond. Otherwise, in standalone/
1686 * bridged mode, each port has a logical port ID equal to its physical port ID.
1688 static void ocelot_setup_logical_port_ids(struct ocelot *ocelot)
1692 for (port = 0; port < ocelot->num_phys_ports; port++) {
1693 struct ocelot_port *ocelot_port = ocelot->ports[port];
1694 struct net_device *bond;
1699 bond = ocelot_port->bond;
1701 int lag = __ffs(ocelot_get_bond_mask(ocelot, bond,
1704 ocelot_rmw_gix(ocelot,
1705 ANA_PORT_PORT_CFG_PORTID_VAL(lag),
1706 ANA_PORT_PORT_CFG_PORTID_VAL_M,
1707 ANA_PORT_PORT_CFG, port);
1709 ocelot_rmw_gix(ocelot,
1710 ANA_PORT_PORT_CFG_PORTID_VAL(port),
1711 ANA_PORT_PORT_CFG_PORTID_VAL_M,
1712 ANA_PORT_PORT_CFG, port);
1717 int ocelot_port_lag_join(struct ocelot *ocelot, int port,
1718 struct net_device *bond,
1719 struct netdev_lag_upper_info *info)
1721 if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
1724 ocelot->ports[port]->bond = bond;
1726 ocelot_setup_logical_port_ids(ocelot);
1727 ocelot_apply_bridge_fwd_mask(ocelot);
1728 ocelot_set_aggr_pgids(ocelot);
1732 EXPORT_SYMBOL(ocelot_port_lag_join);
1734 void ocelot_port_lag_leave(struct ocelot *ocelot, int port,
1735 struct net_device *bond)
1737 ocelot->ports[port]->bond = NULL;
1739 ocelot_setup_logical_port_ids(ocelot);
1740 ocelot_apply_bridge_fwd_mask(ocelot);
1741 ocelot_set_aggr_pgids(ocelot);
1743 EXPORT_SYMBOL(ocelot_port_lag_leave);
1745 void ocelot_port_lag_change(struct ocelot *ocelot, int port, bool lag_tx_active)
1747 struct ocelot_port *ocelot_port = ocelot->ports[port];
1749 ocelot_port->lag_tx_active = lag_tx_active;
1751 /* Rebalance the LAGs */
1752 ocelot_set_aggr_pgids(ocelot);
1754 EXPORT_SYMBOL(ocelot_port_lag_change);
1756 /* Configure the maximum SDU (L2 payload) on RX to the value specified in @sdu.
1757 * The length of VLAN tags is accounted for automatically via DEV_MAC_TAGS_CFG.
1758 * In the special case that it's the NPI port that we're configuring, the
1759 * length of the tag and optional prefix needs to be accounted for privately,
1760 * in order to be able to sustain communication at the requested @sdu.
1762 void ocelot_port_set_maxlen(struct ocelot *ocelot, int port, size_t sdu)
1764 struct ocelot_port *ocelot_port = ocelot->ports[port];
1765 int maxlen = sdu + ETH_HLEN + ETH_FCS_LEN;
1766 int pause_start, pause_stop;
1769 if (port == ocelot->npi) {
1770 maxlen += OCELOT_TAG_LEN;
1772 if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
1773 maxlen += OCELOT_SHORT_PREFIX_LEN;
1774 else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
1775 maxlen += OCELOT_LONG_PREFIX_LEN;
1778 ocelot_port_writel(ocelot_port, maxlen, DEV_MAC_MAXLEN_CFG);
1780 /* Set Pause watermark hysteresis */
1781 pause_start = 6 * maxlen / OCELOT_BUFFER_CELL_SZ;
1782 pause_stop = 4 * maxlen / OCELOT_BUFFER_CELL_SZ;
1783 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_START,
1785 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_STOP,
1788 /* Tail dropping watermarks */
1789 atop_tot = (ocelot->packet_buffer_size - 9 * maxlen) /
1790 OCELOT_BUFFER_CELL_SZ;
1791 atop = (9 * maxlen) / OCELOT_BUFFER_CELL_SZ;
1792 ocelot_write_rix(ocelot, ocelot->ops->wm_enc(atop), SYS_ATOP, port);
1793 ocelot_write(ocelot, ocelot->ops->wm_enc(atop_tot), SYS_ATOP_TOT_CFG);
1795 EXPORT_SYMBOL(ocelot_port_set_maxlen);
1797 int ocelot_get_max_mtu(struct ocelot *ocelot, int port)
1799 int max_mtu = 65535 - ETH_HLEN - ETH_FCS_LEN;
1801 if (port == ocelot->npi) {
1802 max_mtu -= OCELOT_TAG_LEN;
1804 if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
1805 max_mtu -= OCELOT_SHORT_PREFIX_LEN;
1806 else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
1807 max_mtu -= OCELOT_LONG_PREFIX_LEN;
1812 EXPORT_SYMBOL(ocelot_get_max_mtu);
1814 static void ocelot_port_set_learning(struct ocelot *ocelot, int port,
1817 struct ocelot_port *ocelot_port = ocelot->ports[port];
1821 val = ANA_PORT_PORT_CFG_LEARN_ENA;
1823 ocelot_rmw_gix(ocelot, val, ANA_PORT_PORT_CFG_LEARN_ENA,
1824 ANA_PORT_PORT_CFG, port);
1826 ocelot_port->learn_ena = enabled;
1829 static void ocelot_port_set_ucast_flood(struct ocelot *ocelot, int port,
1837 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_UC);
1840 static void ocelot_port_set_mcast_flood(struct ocelot *ocelot, int port,
1848 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MC);
1851 static void ocelot_port_set_bcast_flood(struct ocelot *ocelot, int port,
1859 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_BC);
1862 int ocelot_port_pre_bridge_flags(struct ocelot *ocelot, int port,
1863 struct switchdev_brport_flags flags)
1865 if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
1871 EXPORT_SYMBOL(ocelot_port_pre_bridge_flags);
1873 void ocelot_port_bridge_flags(struct ocelot *ocelot, int port,
1874 struct switchdev_brport_flags flags)
1876 if (flags.mask & BR_LEARNING)
1877 ocelot_port_set_learning(ocelot, port,
1878 !!(flags.val & BR_LEARNING));
1880 if (flags.mask & BR_FLOOD)
1881 ocelot_port_set_ucast_flood(ocelot, port,
1882 !!(flags.val & BR_FLOOD));
1884 if (flags.mask & BR_MCAST_FLOOD)
1885 ocelot_port_set_mcast_flood(ocelot, port,
1886 !!(flags.val & BR_MCAST_FLOOD));
1888 if (flags.mask & BR_BCAST_FLOOD)
1889 ocelot_port_set_bcast_flood(ocelot, port,
1890 !!(flags.val & BR_BCAST_FLOOD));
1892 EXPORT_SYMBOL(ocelot_port_bridge_flags);
1894 void ocelot_init_port(struct ocelot *ocelot, int port)
1896 struct ocelot_port *ocelot_port = ocelot->ports[port];
1898 skb_queue_head_init(&ocelot_port->tx_skbs);
1899 spin_lock_init(&ocelot_port->ts_id_lock);
1901 /* Basic L2 initialization */
1904 * FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 0
1905 * !FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 5
1907 ocelot_port_writel(ocelot_port, DEV_MAC_IFG_CFG_TX_IFG(5),
1910 /* Load seed (0) and set MAC HDX late collision */
1911 ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67) |
1912 DEV_MAC_HDX_CFG_SEED_LOAD,
1915 ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67),
1918 /* Set Max Length and maximum tags allowed */
1919 ocelot_port_set_maxlen(ocelot, port, ETH_DATA_LEN);
1920 ocelot_port_writel(ocelot_port, DEV_MAC_TAGS_CFG_TAG_ID(ETH_P_8021AD) |
1921 DEV_MAC_TAGS_CFG_VLAN_AWR_ENA |
1922 DEV_MAC_TAGS_CFG_VLAN_DBL_AWR_ENA |
1923 DEV_MAC_TAGS_CFG_VLAN_LEN_AWR_ENA,
1926 /* Set SMAC of Pause frame (00:00:00:00:00:00) */
1927 ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_HIGH_CFG);
1928 ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_LOW_CFG);
1930 /* Enable transmission of pause frames */
1931 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 1);
1933 /* Drop frames with multicast source address */
1934 ocelot_rmw_gix(ocelot, ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
1935 ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
1936 ANA_PORT_DROP_CFG, port);
1938 /* Set default VLAN and tag type to 8021Q. */
1939 ocelot_rmw_gix(ocelot, REW_PORT_VLAN_CFG_PORT_TPID(ETH_P_8021Q),
1940 REW_PORT_VLAN_CFG_PORT_TPID_M,
1941 REW_PORT_VLAN_CFG, port);
1943 /* Disable source address learning for standalone mode */
1944 ocelot_port_set_learning(ocelot, port, false);
1946 /* Set the port's initial logical port ID value, enable receiving
1947 * frames on it, and configure the MAC address learning type to
1950 ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_LEARNAUTO |
1951 ANA_PORT_PORT_CFG_RECV_ENA |
1952 ANA_PORT_PORT_CFG_PORTID_VAL(port),
1953 ANA_PORT_PORT_CFG, port);
1955 /* Enable vcap lookups */
1956 ocelot_vcap_enable(ocelot, port);
1958 EXPORT_SYMBOL(ocelot_init_port);
1960 /* Configure and enable the CPU port module, which is a set of queues
1961 * accessible through register MMIO, frame DMA or Ethernet (in case
1962 * NPI mode is used).
1964 static void ocelot_cpu_port_init(struct ocelot *ocelot)
1966 int cpu = ocelot->num_phys_ports;
1968 /* The unicast destination PGID for the CPU port module is unused */
1969 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, cpu);
1970 /* Instead set up a multicast destination PGID for traffic copied to
1971 * the CPU. Whitelisted MAC addresses like the port netdevice MAC
1972 * addresses will be copied to the CPU via this PGID.
1974 ocelot_write_rix(ocelot, BIT(cpu), ANA_PGID_PGID, PGID_CPU);
1975 ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_RECV_ENA |
1976 ANA_PORT_PORT_CFG_PORTID_VAL(cpu),
1977 ANA_PORT_PORT_CFG, cpu);
1979 /* Enable CPU port module */
1980 ocelot_fields_write(ocelot, cpu, QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
1981 /* CPU port Injection/Extraction configuration */
1982 ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_XTR_HDR,
1983 OCELOT_TAG_PREFIX_NONE);
1984 ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_INJ_HDR,
1985 OCELOT_TAG_PREFIX_NONE);
1987 /* Configure the CPU port to be VLAN aware */
1988 ocelot_write_gix(ocelot, ANA_PORT_VLAN_CFG_VLAN_VID(0) |
1989 ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
1990 ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1),
1991 ANA_PORT_VLAN_CFG, cpu);
1994 static void ocelot_detect_features(struct ocelot *ocelot)
1998 /* For Ocelot, Felix, Seville, Serval etc, SYS:MMGT:MMGT:FREECNT holds
1999 * the number of 240-byte free memory words (aka 4-cell chunks) and not
2000 * 192 bytes as the documentation incorrectly says.
2002 mmgt = ocelot_read(ocelot, SYS_MMGT);
2003 ocelot->packet_buffer_size = 240 * SYS_MMGT_FREECNT(mmgt);
2005 eq_ctrl = ocelot_read(ocelot, QSYS_EQ_CTRL);
2006 ocelot->num_frame_refs = QSYS_MMGT_EQ_CTRL_FP_FREE_CNT(eq_ctrl);
2009 int ocelot_init(struct ocelot *ocelot)
2011 char queue_name[32];
2015 if (ocelot->ops->reset) {
2016 ret = ocelot->ops->reset(ocelot);
2018 dev_err(ocelot->dev, "Switch reset failed\n");
2023 ocelot->stats = devm_kcalloc(ocelot->dev,
2024 ocelot->num_phys_ports * ocelot->num_stats,
2025 sizeof(u64), GFP_KERNEL);
2029 mutex_init(&ocelot->stats_lock);
2030 mutex_init(&ocelot->ptp_lock);
2031 spin_lock_init(&ocelot->ptp_clock_lock);
2032 snprintf(queue_name, sizeof(queue_name), "%s-stats",
2033 dev_name(ocelot->dev));
2034 ocelot->stats_queue = create_singlethread_workqueue(queue_name);
2035 if (!ocelot->stats_queue)
2038 ocelot->owq = alloc_ordered_workqueue("ocelot-owq", 0);
2040 destroy_workqueue(ocelot->stats_queue);
2044 INIT_LIST_HEAD(&ocelot->multicast);
2045 INIT_LIST_HEAD(&ocelot->pgids);
2046 ocelot_detect_features(ocelot);
2047 ocelot_mact_init(ocelot);
2048 ocelot_vlan_init(ocelot);
2049 ocelot_vcap_init(ocelot);
2050 ocelot_cpu_port_init(ocelot);
2052 for (port = 0; port < ocelot->num_phys_ports; port++) {
2053 /* Clear all counters (5 groups) */
2054 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port) |
2055 SYS_STAT_CFG_STAT_CLEAR_SHOT(0x7f),
2059 /* Only use S-Tag */
2060 ocelot_write(ocelot, ETH_P_8021AD, SYS_VLAN_ETYPE_CFG);
2062 /* Aggregation mode */
2063 ocelot_write(ocelot, ANA_AGGR_CFG_AC_SMAC_ENA |
2064 ANA_AGGR_CFG_AC_DMAC_ENA |
2065 ANA_AGGR_CFG_AC_IP4_SIPDIP_ENA |
2066 ANA_AGGR_CFG_AC_IP4_TCPUDP_ENA |
2067 ANA_AGGR_CFG_AC_IP6_FLOW_LBL_ENA |
2068 ANA_AGGR_CFG_AC_IP6_TCPUDP_ENA,
2071 /* Set MAC age time to default value. The entry is aged after
2074 ocelot_write(ocelot,
2075 ANA_AUTOAGE_AGE_PERIOD(BR_DEFAULT_AGEING_TIME / 2 / HZ),
2078 /* Disable learning for frames discarded by VLAN ingress filtering */
2079 regmap_field_write(ocelot->regfields[ANA_ADVLEARN_VLAN_CHK], 1);
2081 /* Setup frame ageing - fixed value "2 sec" - in 6.5 us units */
2082 ocelot_write(ocelot, SYS_FRM_AGING_AGE_TX_ENA |
2083 SYS_FRM_AGING_MAX_AGE(307692), SYS_FRM_AGING);
2085 /* Setup flooding PGIDs */
2086 for (i = 0; i < ocelot->num_flooding_pgids; i++)
2087 ocelot_write_rix(ocelot, ANA_FLOODING_FLD_MULTICAST(PGID_MC) |
2088 ANA_FLOODING_FLD_BROADCAST(PGID_BC) |
2089 ANA_FLOODING_FLD_UNICAST(PGID_UC),
2091 ocelot_write(ocelot, ANA_FLOODING_IPMC_FLD_MC6_DATA(PGID_MCIPV6) |
2092 ANA_FLOODING_IPMC_FLD_MC6_CTRL(PGID_MC) |
2093 ANA_FLOODING_IPMC_FLD_MC4_DATA(PGID_MCIPV4) |
2094 ANA_FLOODING_IPMC_FLD_MC4_CTRL(PGID_MC),
2097 for (port = 0; port < ocelot->num_phys_ports; port++) {
2098 /* Transmit the frame to the local port. */
2099 ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
2100 /* Do not forward BPDU frames to the front ports. */
2101 ocelot_write_gix(ocelot,
2102 ANA_PORT_CPU_FWD_BPDU_CFG_BPDU_REDIR_ENA(0xffff),
2103 ANA_PORT_CPU_FWD_BPDU_CFG,
2105 /* Ensure bridging is disabled */
2106 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_SRC + port);
2109 for_each_nonreserved_multicast_dest_pgid(ocelot, i) {
2110 u32 val = ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports - 1, 0));
2112 ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
2115 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_BLACKHOLE);
2117 /* Allow broadcast and unknown L2 multicast to the CPU. */
2118 ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2119 ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2120 ANA_PGID_PGID, PGID_MC);
2121 ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2122 ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2123 ANA_PGID_PGID, PGID_BC);
2124 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV4);
2125 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV6);
2127 /* Allow manual injection via DEVCPU_QS registers, and byte swap these
2128 * registers endianness.
2130 ocelot_write_rix(ocelot, QS_INJ_GRP_CFG_BYTE_SWAP |
2131 QS_INJ_GRP_CFG_MODE(1), QS_INJ_GRP_CFG, 0);
2132 ocelot_write_rix(ocelot, QS_XTR_GRP_CFG_BYTE_SWAP |
2133 QS_XTR_GRP_CFG_MODE(1), QS_XTR_GRP_CFG, 0);
2134 ocelot_write(ocelot, ANA_CPUQ_CFG_CPUQ_MIRROR(2) |
2135 ANA_CPUQ_CFG_CPUQ_LRN(2) |
2136 ANA_CPUQ_CFG_CPUQ_MAC_COPY(2) |
2137 ANA_CPUQ_CFG_CPUQ_SRC_COPY(2) |
2138 ANA_CPUQ_CFG_CPUQ_LOCKED_PORTMOVE(2) |
2139 ANA_CPUQ_CFG_CPUQ_ALLBRIDGE(6) |
2140 ANA_CPUQ_CFG_CPUQ_IPMC_CTRL(6) |
2141 ANA_CPUQ_CFG_CPUQ_IGMP(6) |
2142 ANA_CPUQ_CFG_CPUQ_MLD(6), ANA_CPUQ_CFG);
2143 for (i = 0; i < 16; i++)
2144 ocelot_write_rix(ocelot, ANA_CPUQ_8021_CFG_CPUQ_GARP_VAL(6) |
2145 ANA_CPUQ_8021_CFG_CPUQ_BPDU_VAL(6),
2146 ANA_CPUQ_8021_CFG, i);
2148 INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work);
2149 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work,
2150 OCELOT_STATS_CHECK_DELAY);
2154 EXPORT_SYMBOL(ocelot_init);
2156 void ocelot_deinit(struct ocelot *ocelot)
2158 cancel_delayed_work(&ocelot->stats_work);
2159 destroy_workqueue(ocelot->stats_queue);
2160 destroy_workqueue(ocelot->owq);
2161 mutex_destroy(&ocelot->stats_lock);
2163 EXPORT_SYMBOL(ocelot_deinit);
2165 void ocelot_deinit_port(struct ocelot *ocelot, int port)
2167 struct ocelot_port *ocelot_port = ocelot->ports[port];
2169 skb_queue_purge(&ocelot_port->tx_skbs);
2171 EXPORT_SYMBOL(ocelot_deinit_port);
2173 MODULE_LICENSE("Dual MIT/GPL");