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)
384 /* Disable dequeuing from the egress queues */
385 ocelot_rmw_rix(ocelot, QSYS_PORT_MODE_DEQUEUE_DIS,
386 QSYS_PORT_MODE_DEQUEUE_DIS,
387 QSYS_PORT_MODE, port);
389 /* Disable flow control */
390 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 0);
392 /* Disable priority flow control */
393 ocelot_fields_write(ocelot, port,
394 QSYS_SWITCH_PORT_MODE_TX_PFC_ENA, 0);
396 /* Wait at least the time it takes to receive a frame of maximum length
398 * Worst-case delays for 10 kilobyte jumbo frames are:
400 * 800 μs on a 100M port
401 * 80 μs on a 1G port
402 * 32 μs on a 2.5G port
404 usleep_range(8000, 10000);
406 /* Disable half duplex backpressure. */
407 ocelot_rmw_rix(ocelot, 0, SYS_FRONT_PORT_MODE_HDX_MODE,
408 SYS_FRONT_PORT_MODE, port);
410 /* Flush the queues associated with the port. */
411 ocelot_rmw_gix(ocelot, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG_FLUSH_ENA,
414 /* Enable dequeuing from the egress queues. */
415 ocelot_rmw_rix(ocelot, 0, QSYS_PORT_MODE_DEQUEUE_DIS, QSYS_PORT_MODE,
418 /* Wait until flushing is complete. */
419 err = read_poll_timeout(ocelot_read_eq_avail, val, !val,
420 100, 2000000, false, ocelot, port);
422 /* Clear flushing again. */
423 ocelot_rmw_gix(ocelot, 0, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG, port);
427 EXPORT_SYMBOL(ocelot_port_flush);
429 void ocelot_adjust_link(struct ocelot *ocelot, int port,
430 struct phy_device *phydev)
432 struct ocelot_port *ocelot_port = ocelot->ports[port];
435 switch (phydev->speed) {
437 speed = OCELOT_SPEED_10;
440 speed = OCELOT_SPEED_100;
443 speed = OCELOT_SPEED_1000;
444 mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA;
447 speed = OCELOT_SPEED_2500;
448 mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA;
451 dev_err(ocelot->dev, "Unsupported PHY speed on port %d: %d\n",
452 port, phydev->speed);
456 phy_print_status(phydev);
461 /* Only full duplex supported for now */
462 ocelot_port_writel(ocelot_port, DEV_MAC_MODE_CFG_FDX_ENA |
463 mode, DEV_MAC_MODE_CFG);
465 /* Disable HDX fast control */
466 ocelot_port_writel(ocelot_port, DEV_PORT_MISC_HDX_FAST_DIS,
469 /* SGMII only for now */
470 ocelot_port_writel(ocelot_port, PCS1G_MODE_CFG_SGMII_MODE_ENA,
472 ocelot_port_writel(ocelot_port, PCS1G_SD_CFG_SD_SEL, PCS1G_SD_CFG);
475 ocelot_port_writel(ocelot_port, PCS1G_CFG_PCS_ENA, PCS1G_CFG);
477 /* No aneg on SGMII */
478 ocelot_port_writel(ocelot_port, 0, PCS1G_ANEG_CFG);
481 ocelot_port_writel(ocelot_port, 0, PCS1G_LB_CFG);
483 /* Enable MAC module */
484 ocelot_port_writel(ocelot_port, DEV_MAC_ENA_CFG_RX_ENA |
485 DEV_MAC_ENA_CFG_TX_ENA, DEV_MAC_ENA_CFG);
487 /* Take MAC, Port, Phy (intern) and PCS (SGMII/Serdes) clock out of
490 ocelot_port_writel(ocelot_port, DEV_CLOCK_CFG_LINK_SPEED(speed),
494 ocelot_write_gix(ocelot, ANA_PFC_PFC_CFG_FC_LINK_SPEED(speed),
495 ANA_PFC_PFC_CFG, port);
497 /* Core: Enable port for frame transfer */
498 ocelot_fields_write(ocelot, port,
499 QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
502 ocelot_write_rix(ocelot, SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) |
503 SYS_MAC_FC_CFG_RX_FC_ENA | SYS_MAC_FC_CFG_TX_FC_ENA |
504 SYS_MAC_FC_CFG_ZERO_PAUSE_ENA |
505 SYS_MAC_FC_CFG_FC_LATENCY_CFG(0x7) |
506 SYS_MAC_FC_CFG_FC_LINK_SPEED(speed),
507 SYS_MAC_FC_CFG, port);
508 ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, port);
510 EXPORT_SYMBOL(ocelot_adjust_link);
512 void ocelot_port_enable(struct ocelot *ocelot, int port,
513 struct phy_device *phy)
515 /* Enable receiving frames on the port, and activate auto-learning of
518 ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_LEARNAUTO |
519 ANA_PORT_PORT_CFG_RECV_ENA |
520 ANA_PORT_PORT_CFG_PORTID_VAL(port),
521 ANA_PORT_PORT_CFG, port);
523 EXPORT_SYMBOL(ocelot_port_enable);
525 void ocelot_port_disable(struct ocelot *ocelot, int port)
527 struct ocelot_port *ocelot_port = ocelot->ports[port];
529 ocelot_port_writel(ocelot_port, 0, DEV_MAC_ENA_CFG);
530 ocelot_fields_write(ocelot, port, QSYS_SWITCH_PORT_MODE_PORT_ENA, 0);
532 EXPORT_SYMBOL(ocelot_port_disable);
534 static void ocelot_port_add_txtstamp_skb(struct ocelot *ocelot, int port,
535 struct sk_buff *clone)
537 struct ocelot_port *ocelot_port = ocelot->ports[port];
539 spin_lock(&ocelot_port->ts_id_lock);
541 skb_shinfo(clone)->tx_flags |= SKBTX_IN_PROGRESS;
542 /* Store timestamp ID in OCELOT_SKB_CB(clone)->ts_id */
543 OCELOT_SKB_CB(clone)->ts_id = ocelot_port->ts_id;
544 ocelot_port->ts_id = (ocelot_port->ts_id + 1) % 4;
545 skb_queue_tail(&ocelot_port->tx_skbs, clone);
547 spin_unlock(&ocelot_port->ts_id_lock);
550 u32 ocelot_ptp_rew_op(struct sk_buff *skb)
552 struct sk_buff *clone = OCELOT_SKB_CB(skb)->clone;
553 u8 ptp_cmd = OCELOT_SKB_CB(skb)->ptp_cmd;
556 if (ptp_cmd == IFH_REW_OP_TWO_STEP_PTP && clone) {
558 rew_op |= OCELOT_SKB_CB(clone)->ts_id << 3;
559 } else if (ptp_cmd == IFH_REW_OP_ORIGIN_PTP) {
565 EXPORT_SYMBOL(ocelot_ptp_rew_op);
567 static bool ocelot_ptp_is_onestep_sync(struct sk_buff *skb)
569 struct ptp_header *hdr;
570 unsigned int ptp_class;
573 ptp_class = ptp_classify_raw(skb);
574 if (ptp_class == PTP_CLASS_NONE)
577 hdr = ptp_parse_header(skb, ptp_class);
581 msgtype = ptp_get_msgtype(hdr, ptp_class);
582 twostep = hdr->flag_field[0] & 0x2;
584 if (msgtype == PTP_MSGTYPE_SYNC && twostep == 0)
590 int ocelot_port_txtstamp_request(struct ocelot *ocelot, int port,
592 struct sk_buff **clone)
594 struct ocelot_port *ocelot_port = ocelot->ports[port];
595 u8 ptp_cmd = ocelot_port->ptp_cmd;
597 /* Store ptp_cmd in OCELOT_SKB_CB(skb)->ptp_cmd */
598 if (ptp_cmd == IFH_REW_OP_ORIGIN_PTP) {
599 if (ocelot_ptp_is_onestep_sync(skb)) {
600 OCELOT_SKB_CB(skb)->ptp_cmd = ptp_cmd;
604 /* Fall back to two-step timestamping */
605 ptp_cmd = IFH_REW_OP_TWO_STEP_PTP;
608 if (ptp_cmd == IFH_REW_OP_TWO_STEP_PTP) {
609 *clone = skb_clone_sk(skb);
613 ocelot_port_add_txtstamp_skb(ocelot, port, *clone);
614 OCELOT_SKB_CB(skb)->ptp_cmd = ptp_cmd;
619 EXPORT_SYMBOL(ocelot_port_txtstamp_request);
621 static void ocelot_get_hwtimestamp(struct ocelot *ocelot,
622 struct timespec64 *ts)
627 spin_lock_irqsave(&ocelot->ptp_clock_lock, flags);
629 /* Read current PTP time to get seconds */
630 val = ocelot_read_rix(ocelot, PTP_PIN_CFG, TOD_ACC_PIN);
632 val &= ~(PTP_PIN_CFG_SYNC | PTP_PIN_CFG_ACTION_MASK | PTP_PIN_CFG_DOM);
633 val |= PTP_PIN_CFG_ACTION(PTP_PIN_ACTION_SAVE);
634 ocelot_write_rix(ocelot, val, PTP_PIN_CFG, TOD_ACC_PIN);
635 ts->tv_sec = ocelot_read_rix(ocelot, PTP_PIN_TOD_SEC_LSB, TOD_ACC_PIN);
637 /* Read packet HW timestamp from FIFO */
638 val = ocelot_read(ocelot, SYS_PTP_TXSTAMP);
639 ts->tv_nsec = SYS_PTP_TXSTAMP_PTP_TXSTAMP(val);
641 /* Sec has incremented since the ts was registered */
642 if ((ts->tv_sec & 0x1) != !!(val & SYS_PTP_TXSTAMP_PTP_TXSTAMP_SEC))
645 spin_unlock_irqrestore(&ocelot->ptp_clock_lock, flags);
648 void ocelot_get_txtstamp(struct ocelot *ocelot)
650 int budget = OCELOT_PTP_QUEUE_SZ;
653 struct sk_buff *skb, *skb_tmp, *skb_match = NULL;
654 struct skb_shared_hwtstamps shhwtstamps;
655 struct ocelot_port *port;
656 struct timespec64 ts;
660 val = ocelot_read(ocelot, SYS_PTP_STATUS);
662 /* Check if a timestamp can be retrieved */
663 if (!(val & SYS_PTP_STATUS_PTP_MESS_VLD))
666 WARN_ON(val & SYS_PTP_STATUS_PTP_OVFL);
668 /* Retrieve the ts ID and Tx port */
669 id = SYS_PTP_STATUS_PTP_MESS_ID_X(val);
670 txport = SYS_PTP_STATUS_PTP_MESS_TXPORT_X(val);
672 /* Retrieve its associated skb */
673 port = ocelot->ports[txport];
675 spin_lock_irqsave(&port->tx_skbs.lock, flags);
677 skb_queue_walk_safe(&port->tx_skbs, skb, skb_tmp) {
678 if (OCELOT_SKB_CB(skb)->ts_id != id)
680 __skb_unlink(skb, &port->tx_skbs);
685 spin_unlock_irqrestore(&port->tx_skbs.lock, flags);
687 /* Get the h/w timestamp */
688 ocelot_get_hwtimestamp(ocelot, &ts);
690 if (unlikely(!skb_match))
693 /* Set the timestamp into the skb */
694 memset(&shhwtstamps, 0, sizeof(shhwtstamps));
695 shhwtstamps.hwtstamp = ktime_set(ts.tv_sec, ts.tv_nsec);
696 skb_complete_tx_timestamp(skb_match, &shhwtstamps);
699 ocelot_write(ocelot, SYS_PTP_NXT_PTP_NXT, SYS_PTP_NXT);
702 EXPORT_SYMBOL(ocelot_get_txtstamp);
704 static int ocelot_rx_frame_word(struct ocelot *ocelot, u8 grp, bool ifh,
707 u32 bytes_valid, val;
709 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
710 if (val == XTR_NOT_READY) {
715 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
716 } while (val == XTR_NOT_READY);
727 bytes_valid = XTR_VALID_BYTES(val);
728 val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
729 if (val == XTR_ESCAPE)
730 *rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
736 *rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
746 static int ocelot_xtr_poll_xfh(struct ocelot *ocelot, int grp, u32 *xfh)
750 for (i = 0; i < OCELOT_TAG_LEN / 4; i++) {
751 err = ocelot_rx_frame_word(ocelot, grp, true, &xfh[i]);
753 return (err < 0) ? err : -EIO;
759 int ocelot_xtr_poll_frame(struct ocelot *ocelot, int grp, struct sk_buff **nskb)
761 struct skb_shared_hwtstamps *shhwtstamps;
762 u64 tod_in_ns, full_ts_in_ns;
763 u64 timestamp, src_port, len;
764 u32 xfh[OCELOT_TAG_LEN / 4];
765 struct net_device *dev;
766 struct timespec64 ts;
772 err = ocelot_xtr_poll_xfh(ocelot, grp, xfh);
776 ocelot_xfh_get_src_port(xfh, &src_port);
777 ocelot_xfh_get_len(xfh, &len);
778 ocelot_xfh_get_rew_val(xfh, ×tamp);
780 if (WARN_ON(src_port >= ocelot->num_phys_ports))
783 dev = ocelot->ops->port_to_netdev(ocelot, src_port);
787 skb = netdev_alloc_skb(dev, len);
788 if (unlikely(!skb)) {
789 netdev_err(dev, "Unable to allocate sk_buff\n");
793 buf_len = len - ETH_FCS_LEN;
794 buf = (u32 *)skb_put(skb, buf_len);
798 sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
805 } while (len < buf_len);
808 sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
814 /* Update the statistics if part of the FCS was read before */
815 len -= ETH_FCS_LEN - sz;
817 if (unlikely(dev->features & NETIF_F_RXFCS)) {
818 buf = (u32 *)skb_put(skb, ETH_FCS_LEN);
823 ocelot_ptp_gettime64(&ocelot->ptp_info, &ts);
825 tod_in_ns = ktime_set(ts.tv_sec, ts.tv_nsec);
826 if ((tod_in_ns & 0xffffffff) < timestamp)
827 full_ts_in_ns = (((tod_in_ns >> 32) - 1) << 32) |
830 full_ts_in_ns = (tod_in_ns & GENMASK_ULL(63, 32)) |
833 shhwtstamps = skb_hwtstamps(skb);
834 memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps));
835 shhwtstamps->hwtstamp = full_ts_in_ns;
838 /* Everything we see on an interface that is in the HW bridge
839 * has already been forwarded.
841 if (ocelot->ports[src_port]->bridge)
842 skb->offload_fwd_mark = 1;
844 skb->protocol = eth_type_trans(skb, dev);
854 EXPORT_SYMBOL(ocelot_xtr_poll_frame);
856 bool ocelot_can_inject(struct ocelot *ocelot, int grp)
858 u32 val = ocelot_read(ocelot, QS_INJ_STATUS);
860 if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))))
862 if (val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp)))
867 EXPORT_SYMBOL(ocelot_can_inject);
869 void ocelot_port_inject_frame(struct ocelot *ocelot, int port, int grp,
870 u32 rew_op, struct sk_buff *skb)
872 u32 ifh[OCELOT_TAG_LEN / 4] = {0};
873 unsigned int i, count, last;
875 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
876 QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp);
878 ocelot_ifh_set_bypass(ifh, 1);
879 ocelot_ifh_set_dest(ifh, BIT_ULL(port));
880 ocelot_ifh_set_tag_type(ifh, IFH_TAG_TYPE_C);
881 ocelot_ifh_set_vid(ifh, skb_vlan_tag_get(skb));
882 ocelot_ifh_set_rew_op(ifh, rew_op);
884 for (i = 0; i < OCELOT_TAG_LEN / 4; i++)
885 ocelot_write_rix(ocelot, ifh[i], QS_INJ_WR, grp);
887 count = DIV_ROUND_UP(skb->len, 4);
889 for (i = 0; i < count; i++)
890 ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp);
893 while (i < (OCELOT_BUFFER_CELL_SZ / 4)) {
894 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
898 /* Indicate EOF and valid bytes in last word */
899 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
900 QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) |
905 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
906 skb_tx_timestamp(skb);
908 skb->dev->stats.tx_packets++;
909 skb->dev->stats.tx_bytes += skb->len;
911 EXPORT_SYMBOL(ocelot_port_inject_frame);
913 void ocelot_drain_cpu_queue(struct ocelot *ocelot, int grp)
915 while (ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp))
916 ocelot_read_rix(ocelot, QS_XTR_RD, grp);
918 EXPORT_SYMBOL(ocelot_drain_cpu_queue);
920 int ocelot_fdb_add(struct ocelot *ocelot, int port,
921 const unsigned char *addr, u16 vid)
925 if (port == ocelot->npi)
928 return ocelot_mact_learn(ocelot, pgid, addr, vid, ENTRYTYPE_LOCKED);
930 EXPORT_SYMBOL(ocelot_fdb_add);
932 int ocelot_fdb_del(struct ocelot *ocelot, int port,
933 const unsigned char *addr, u16 vid)
935 return ocelot_mact_forget(ocelot, addr, vid);
937 EXPORT_SYMBOL(ocelot_fdb_del);
939 int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
940 bool is_static, void *data)
942 struct ocelot_dump_ctx *dump = data;
943 u32 portid = NETLINK_CB(dump->cb->skb).portid;
944 u32 seq = dump->cb->nlh->nlmsg_seq;
945 struct nlmsghdr *nlh;
948 if (dump->idx < dump->cb->args[2])
951 nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH,
952 sizeof(*ndm), NLM_F_MULTI);
956 ndm = nlmsg_data(nlh);
957 ndm->ndm_family = AF_BRIDGE;
960 ndm->ndm_flags = NTF_SELF;
962 ndm->ndm_ifindex = dump->dev->ifindex;
963 ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
965 if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr))
966 goto nla_put_failure;
968 if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid))
969 goto nla_put_failure;
971 nlmsg_end(dump->skb, nlh);
978 nlmsg_cancel(dump->skb, nlh);
981 EXPORT_SYMBOL(ocelot_port_fdb_do_dump);
983 static int ocelot_mact_read(struct ocelot *ocelot, int port, int row, int col,
984 struct ocelot_mact_entry *entry)
986 u32 val, dst, macl, mach;
989 /* Set row and column to read from */
990 ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_M_INDEX, row);
991 ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_BUCKET, col);
993 /* Issue a read command */
995 ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_READ),
996 ANA_TABLES_MACACCESS);
998 if (ocelot_mact_wait_for_completion(ocelot))
1001 /* Read the entry flags */
1002 val = ocelot_read(ocelot, ANA_TABLES_MACACCESS);
1003 if (!(val & ANA_TABLES_MACACCESS_VALID))
1006 /* If the entry read has another port configured as its destination,
1009 dst = (val & ANA_TABLES_MACACCESS_DEST_IDX_M) >> 3;
1013 /* Get the entry's MAC address and VLAN id */
1014 macl = ocelot_read(ocelot, ANA_TABLES_MACLDATA);
1015 mach = ocelot_read(ocelot, ANA_TABLES_MACHDATA);
1017 mac[0] = (mach >> 8) & 0xff;
1018 mac[1] = (mach >> 0) & 0xff;
1019 mac[2] = (macl >> 24) & 0xff;
1020 mac[3] = (macl >> 16) & 0xff;
1021 mac[4] = (macl >> 8) & 0xff;
1022 mac[5] = (macl >> 0) & 0xff;
1024 entry->vid = (mach >> 16) & 0xfff;
1025 ether_addr_copy(entry->mac, mac);
1030 int ocelot_fdb_dump(struct ocelot *ocelot, int port,
1031 dsa_fdb_dump_cb_t *cb, void *data)
1035 /* Loop through all the mac tables entries. */
1036 for (i = 0; i < ocelot->num_mact_rows; i++) {
1037 for (j = 0; j < 4; j++) {
1038 struct ocelot_mact_entry entry;
1042 ret = ocelot_mact_read(ocelot, port, i, j, &entry);
1043 /* If the entry is invalid (wrong port, invalid...),
1051 is_static = (entry.type == ENTRYTYPE_LOCKED);
1053 ret = cb(entry.mac, entry.vid, is_static, data);
1061 EXPORT_SYMBOL(ocelot_fdb_dump);
1063 int ocelot_hwstamp_get(struct ocelot *ocelot, int port, struct ifreq *ifr)
1065 return copy_to_user(ifr->ifr_data, &ocelot->hwtstamp_config,
1066 sizeof(ocelot->hwtstamp_config)) ? -EFAULT : 0;
1068 EXPORT_SYMBOL(ocelot_hwstamp_get);
1070 int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr)
1072 struct ocelot_port *ocelot_port = ocelot->ports[port];
1073 struct hwtstamp_config cfg;
1075 if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
1078 /* reserved for future extensions */
1082 /* Tx type sanity check */
1083 switch (cfg.tx_type) {
1084 case HWTSTAMP_TX_ON:
1085 ocelot_port->ptp_cmd = IFH_REW_OP_TWO_STEP_PTP;
1087 case HWTSTAMP_TX_ONESTEP_SYNC:
1088 /* IFH_REW_OP_ONE_STEP_PTP updates the correctional field, we
1089 * need to update the origin time.
1091 ocelot_port->ptp_cmd = IFH_REW_OP_ORIGIN_PTP;
1093 case HWTSTAMP_TX_OFF:
1094 ocelot_port->ptp_cmd = 0;
1100 mutex_lock(&ocelot->ptp_lock);
1102 switch (cfg.rx_filter) {
1103 case HWTSTAMP_FILTER_NONE:
1105 case HWTSTAMP_FILTER_ALL:
1106 case HWTSTAMP_FILTER_SOME:
1107 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
1108 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
1109 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
1110 case HWTSTAMP_FILTER_NTP_ALL:
1111 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
1112 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
1113 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
1114 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
1115 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
1116 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
1117 case HWTSTAMP_FILTER_PTP_V2_EVENT:
1118 case HWTSTAMP_FILTER_PTP_V2_SYNC:
1119 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
1120 cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
1123 mutex_unlock(&ocelot->ptp_lock);
1127 /* Commit back the result & save it */
1128 memcpy(&ocelot->hwtstamp_config, &cfg, sizeof(cfg));
1129 mutex_unlock(&ocelot->ptp_lock);
1131 return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
1133 EXPORT_SYMBOL(ocelot_hwstamp_set);
1135 void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data)
1139 if (sset != ETH_SS_STATS)
1142 for (i = 0; i < ocelot->num_stats; i++)
1143 memcpy(data + i * ETH_GSTRING_LEN, ocelot->stats_layout[i].name,
1146 EXPORT_SYMBOL(ocelot_get_strings);
1148 static void ocelot_update_stats(struct ocelot *ocelot)
1152 mutex_lock(&ocelot->stats_lock);
1154 for (i = 0; i < ocelot->num_phys_ports; i++) {
1155 /* Configure the port to read the stats from */
1156 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(i), SYS_STAT_CFG);
1158 for (j = 0; j < ocelot->num_stats; j++) {
1160 unsigned int idx = i * ocelot->num_stats + j;
1162 val = ocelot_read_rix(ocelot, SYS_COUNT_RX_OCTETS,
1163 ocelot->stats_layout[j].offset);
1165 if (val < (ocelot->stats[idx] & U32_MAX))
1166 ocelot->stats[idx] += (u64)1 << 32;
1168 ocelot->stats[idx] = (ocelot->stats[idx] &
1169 ~(u64)U32_MAX) + val;
1173 mutex_unlock(&ocelot->stats_lock);
1176 static void ocelot_check_stats_work(struct work_struct *work)
1178 struct delayed_work *del_work = to_delayed_work(work);
1179 struct ocelot *ocelot = container_of(del_work, struct ocelot,
1182 ocelot_update_stats(ocelot);
1184 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work,
1185 OCELOT_STATS_CHECK_DELAY);
1188 void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data)
1192 /* check and update now */
1193 ocelot_update_stats(ocelot);
1195 /* Copy all counters */
1196 for (i = 0; i < ocelot->num_stats; i++)
1197 *data++ = ocelot->stats[port * ocelot->num_stats + i];
1199 EXPORT_SYMBOL(ocelot_get_ethtool_stats);
1201 int ocelot_get_sset_count(struct ocelot *ocelot, int port, int sset)
1203 if (sset != ETH_SS_STATS)
1206 return ocelot->num_stats;
1208 EXPORT_SYMBOL(ocelot_get_sset_count);
1210 int ocelot_get_ts_info(struct ocelot *ocelot, int port,
1211 struct ethtool_ts_info *info)
1213 info->phc_index = ocelot->ptp_clock ?
1214 ptp_clock_index(ocelot->ptp_clock) : -1;
1215 if (info->phc_index == -1) {
1216 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE |
1217 SOF_TIMESTAMPING_RX_SOFTWARE |
1218 SOF_TIMESTAMPING_SOFTWARE;
1221 info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE |
1222 SOF_TIMESTAMPING_RX_SOFTWARE |
1223 SOF_TIMESTAMPING_SOFTWARE |
1224 SOF_TIMESTAMPING_TX_HARDWARE |
1225 SOF_TIMESTAMPING_RX_HARDWARE |
1226 SOF_TIMESTAMPING_RAW_HARDWARE;
1227 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON) |
1228 BIT(HWTSTAMP_TX_ONESTEP_SYNC);
1229 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
1233 EXPORT_SYMBOL(ocelot_get_ts_info);
1235 static u32 ocelot_get_bond_mask(struct ocelot *ocelot, struct net_device *bond,
1236 bool only_active_ports)
1241 for (port = 0; port < ocelot->num_phys_ports; port++) {
1242 struct ocelot_port *ocelot_port = ocelot->ports[port];
1247 if (ocelot_port->bond == bond) {
1248 if (only_active_ports && !ocelot_port->lag_tx_active)
1258 static u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot,
1259 struct net_device *bridge)
1264 for (port = 0; port < ocelot->num_phys_ports; port++) {
1265 struct ocelot_port *ocelot_port = ocelot->ports[port];
1270 if (ocelot_port->stp_state == BR_STATE_FORWARDING &&
1271 ocelot_port->bridge == bridge)
1278 static u32 ocelot_get_dsa_8021q_cpu_mask(struct ocelot *ocelot)
1283 for (port = 0; port < ocelot->num_phys_ports; port++) {
1284 struct ocelot_port *ocelot_port = ocelot->ports[port];
1289 if (ocelot_port->is_dsa_8021q_cpu)
1296 void ocelot_apply_bridge_fwd_mask(struct ocelot *ocelot)
1298 unsigned long cpu_fwd_mask;
1301 /* If a DSA tag_8021q CPU exists, it needs to be included in the
1302 * regular forwarding path of the front ports regardless of whether
1303 * those are bridged or standalone.
1304 * If DSA tag_8021q is not used, this returns 0, which is fine because
1305 * the hardware-based CPU port module can be a destination for packets
1306 * even if it isn't part of PGID_SRC.
1308 cpu_fwd_mask = ocelot_get_dsa_8021q_cpu_mask(ocelot);
1310 /* Apply FWD mask. The loop is needed to add/remove the current port as
1311 * a source for the other ports.
1313 for (port = 0; port < ocelot->num_phys_ports; port++) {
1314 struct ocelot_port *ocelot_port = ocelot->ports[port];
1318 /* Unused ports can't send anywhere */
1320 } else if (ocelot_port->is_dsa_8021q_cpu) {
1321 /* The DSA tag_8021q CPU ports need to be able to
1322 * forward packets to all other ports except for
1325 mask = GENMASK(ocelot->num_phys_ports - 1, 0);
1326 mask &= ~cpu_fwd_mask;
1327 } else if (ocelot_port->bridge) {
1328 struct net_device *bridge = ocelot_port->bridge;
1329 struct net_device *bond = ocelot_port->bond;
1331 mask = ocelot_get_bridge_fwd_mask(ocelot, bridge);
1334 mask &= ~ocelot_get_bond_mask(ocelot, bond,
1338 /* Standalone ports forward only to DSA tag_8021q CPU
1339 * ports (if those exist), or to the hardware CPU port
1342 mask = cpu_fwd_mask;
1345 ocelot_write_rix(ocelot, mask, ANA_PGID_PGID, PGID_SRC + port);
1348 EXPORT_SYMBOL(ocelot_apply_bridge_fwd_mask);
1350 void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state)
1352 struct ocelot_port *ocelot_port = ocelot->ports[port];
1355 ocelot_port->stp_state = state;
1357 if ((state == BR_STATE_LEARNING || state == BR_STATE_FORWARDING) &&
1358 ocelot_port->learn_ena)
1359 learn_ena = ANA_PORT_PORT_CFG_LEARN_ENA;
1361 ocelot_rmw_gix(ocelot, learn_ena, ANA_PORT_PORT_CFG_LEARN_ENA,
1362 ANA_PORT_PORT_CFG, port);
1364 ocelot_apply_bridge_fwd_mask(ocelot);
1366 EXPORT_SYMBOL(ocelot_bridge_stp_state_set);
1368 void ocelot_set_ageing_time(struct ocelot *ocelot, unsigned int msecs)
1370 unsigned int age_period = ANA_AUTOAGE_AGE_PERIOD(msecs / 2000);
1372 /* Setting AGE_PERIOD to zero effectively disables automatic aging,
1373 * which is clearly not what our intention is. So avoid that.
1378 ocelot_rmw(ocelot, age_period, ANA_AUTOAGE_AGE_PERIOD_M, ANA_AUTOAGE);
1380 EXPORT_SYMBOL(ocelot_set_ageing_time);
1382 static struct ocelot_multicast *ocelot_multicast_get(struct ocelot *ocelot,
1383 const unsigned char *addr,
1386 struct ocelot_multicast *mc;
1388 list_for_each_entry(mc, &ocelot->multicast, list) {
1389 if (ether_addr_equal(mc->addr, addr) && mc->vid == vid)
1396 static enum macaccess_entry_type ocelot_classify_mdb(const unsigned char *addr)
1398 if (addr[0] == 0x01 && addr[1] == 0x00 && addr[2] == 0x5e)
1399 return ENTRYTYPE_MACv4;
1400 if (addr[0] == 0x33 && addr[1] == 0x33)
1401 return ENTRYTYPE_MACv6;
1402 return ENTRYTYPE_LOCKED;
1405 static struct ocelot_pgid *ocelot_pgid_alloc(struct ocelot *ocelot, int index,
1406 unsigned long ports)
1408 struct ocelot_pgid *pgid;
1410 pgid = kzalloc(sizeof(*pgid), GFP_KERNEL);
1412 return ERR_PTR(-ENOMEM);
1414 pgid->ports = ports;
1415 pgid->index = index;
1416 refcount_set(&pgid->refcount, 1);
1417 list_add_tail(&pgid->list, &ocelot->pgids);
1422 static void ocelot_pgid_free(struct ocelot *ocelot, struct ocelot_pgid *pgid)
1424 if (!refcount_dec_and_test(&pgid->refcount))
1427 list_del(&pgid->list);
1431 static struct ocelot_pgid *ocelot_mdb_get_pgid(struct ocelot *ocelot,
1432 const struct ocelot_multicast *mc)
1434 struct ocelot_pgid *pgid;
1437 /* According to VSC7514 datasheet 3.9.1.5 IPv4 Multicast Entries and
1438 * 3.9.1.6 IPv6 Multicast Entries, "Instead of a lookup in the
1439 * destination mask table (PGID), the destination set is programmed as
1440 * part of the entry MAC address.", and the DEST_IDX is set to 0.
1442 if (mc->entry_type == ENTRYTYPE_MACv4 ||
1443 mc->entry_type == ENTRYTYPE_MACv6)
1444 return ocelot_pgid_alloc(ocelot, 0, mc->ports);
1446 list_for_each_entry(pgid, &ocelot->pgids, list) {
1447 /* When searching for a nonreserved multicast PGID, ignore the
1448 * dummy PGID of zero that we have for MACv4/MACv6 entries
1450 if (pgid->index && pgid->ports == mc->ports) {
1451 refcount_inc(&pgid->refcount);
1456 /* Search for a free index in the nonreserved multicast PGID area */
1457 for_each_nonreserved_multicast_dest_pgid(ocelot, index) {
1460 list_for_each_entry(pgid, &ocelot->pgids, list) {
1461 if (pgid->index == index) {
1468 return ocelot_pgid_alloc(ocelot, index, mc->ports);
1471 return ERR_PTR(-ENOSPC);
1474 static void ocelot_encode_ports_to_mdb(unsigned char *addr,
1475 struct ocelot_multicast *mc)
1477 ether_addr_copy(addr, mc->addr);
1479 if (mc->entry_type == ENTRYTYPE_MACv4) {
1481 addr[1] = mc->ports >> 8;
1482 addr[2] = mc->ports & 0xff;
1483 } else if (mc->entry_type == ENTRYTYPE_MACv6) {
1484 addr[0] = mc->ports >> 8;
1485 addr[1] = mc->ports & 0xff;
1489 int ocelot_port_mdb_add(struct ocelot *ocelot, int port,
1490 const struct switchdev_obj_port_mdb *mdb)
1492 unsigned char addr[ETH_ALEN];
1493 struct ocelot_multicast *mc;
1494 struct ocelot_pgid *pgid;
1497 if (port == ocelot->npi)
1498 port = ocelot->num_phys_ports;
1500 mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
1503 mc = devm_kzalloc(ocelot->dev, sizeof(*mc), GFP_KERNEL);
1507 mc->entry_type = ocelot_classify_mdb(mdb->addr);
1508 ether_addr_copy(mc->addr, mdb->addr);
1511 list_add_tail(&mc->list, &ocelot->multicast);
1513 /* Existing entry. Clean up the current port mask from
1514 * hardware now, because we'll be modifying it.
1516 ocelot_pgid_free(ocelot, mc->pgid);
1517 ocelot_encode_ports_to_mdb(addr, mc);
1518 ocelot_mact_forget(ocelot, addr, vid);
1521 mc->ports |= BIT(port);
1523 pgid = ocelot_mdb_get_pgid(ocelot, mc);
1525 dev_err(ocelot->dev,
1526 "Cannot allocate PGID for mdb %pM vid %d\n",
1528 devm_kfree(ocelot->dev, mc);
1529 return PTR_ERR(pgid);
1533 ocelot_encode_ports_to_mdb(addr, mc);
1535 if (mc->entry_type != ENTRYTYPE_MACv4 &&
1536 mc->entry_type != ENTRYTYPE_MACv6)
1537 ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
1540 return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
1543 EXPORT_SYMBOL(ocelot_port_mdb_add);
1545 int ocelot_port_mdb_del(struct ocelot *ocelot, int port,
1546 const struct switchdev_obj_port_mdb *mdb)
1548 unsigned char addr[ETH_ALEN];
1549 struct ocelot_multicast *mc;
1550 struct ocelot_pgid *pgid;
1553 if (port == ocelot->npi)
1554 port = ocelot->num_phys_ports;
1556 mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
1560 ocelot_encode_ports_to_mdb(addr, mc);
1561 ocelot_mact_forget(ocelot, addr, vid);
1563 ocelot_pgid_free(ocelot, mc->pgid);
1564 mc->ports &= ~BIT(port);
1566 list_del(&mc->list);
1567 devm_kfree(ocelot->dev, mc);
1571 /* We have a PGID with fewer ports now */
1572 pgid = ocelot_mdb_get_pgid(ocelot, mc);
1574 return PTR_ERR(pgid);
1577 ocelot_encode_ports_to_mdb(addr, mc);
1579 if (mc->entry_type != ENTRYTYPE_MACv4 &&
1580 mc->entry_type != ENTRYTYPE_MACv6)
1581 ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
1584 return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
1587 EXPORT_SYMBOL(ocelot_port_mdb_del);
1589 void ocelot_port_bridge_join(struct ocelot *ocelot, int port,
1590 struct net_device *bridge)
1592 struct ocelot_port *ocelot_port = ocelot->ports[port];
1594 ocelot_port->bridge = bridge;
1596 ocelot_apply_bridge_fwd_mask(ocelot);
1598 EXPORT_SYMBOL(ocelot_port_bridge_join);
1600 void ocelot_port_bridge_leave(struct ocelot *ocelot, int port,
1601 struct net_device *bridge)
1603 struct ocelot_port *ocelot_port = ocelot->ports[port];
1604 struct ocelot_vlan pvid = {0}, native_vlan = {0};
1606 ocelot_port->bridge = NULL;
1608 ocelot_port_set_pvid(ocelot, port, pvid);
1609 ocelot_port_set_native_vlan(ocelot, port, native_vlan);
1610 ocelot_apply_bridge_fwd_mask(ocelot);
1612 EXPORT_SYMBOL(ocelot_port_bridge_leave);
1614 static void ocelot_set_aggr_pgids(struct ocelot *ocelot)
1616 unsigned long visited = GENMASK(ocelot->num_phys_ports - 1, 0);
1619 /* Reset destination and aggregation PGIDS */
1620 for_each_unicast_dest_pgid(ocelot, port)
1621 ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
1623 for_each_aggr_pgid(ocelot, i)
1624 ocelot_write_rix(ocelot, GENMASK(ocelot->num_phys_ports - 1, 0),
1627 /* The visited ports bitmask holds the list of ports offloading any
1628 * bonding interface. Initially we mark all these ports as unvisited,
1629 * then every time we visit a port in this bitmask, we know that it is
1630 * the lowest numbered port, i.e. the one whose logical ID == physical
1631 * port ID == LAG ID. So we mark as visited all further ports in the
1632 * bitmask that are offloading the same bonding interface. This way,
1633 * we set up the aggregation PGIDs only once per bonding interface.
1635 for (port = 0; port < ocelot->num_phys_ports; port++) {
1636 struct ocelot_port *ocelot_port = ocelot->ports[port];
1638 if (!ocelot_port || !ocelot_port->bond)
1641 visited &= ~BIT(port);
1644 /* Now, set PGIDs for each active LAG */
1645 for (lag = 0; lag < ocelot->num_phys_ports; lag++) {
1646 struct net_device *bond = ocelot->ports[lag]->bond;
1647 int num_active_ports = 0;
1648 unsigned long bond_mask;
1651 if (!bond || (visited & BIT(lag)))
1654 bond_mask = ocelot_get_bond_mask(ocelot, bond, true);
1656 for_each_set_bit(port, &bond_mask, ocelot->num_phys_ports) {
1658 ocelot_write_rix(ocelot, bond_mask,
1659 ANA_PGID_PGID, port);
1660 aggr_idx[num_active_ports++] = port;
1663 for_each_aggr_pgid(ocelot, i) {
1666 ac = ocelot_read_rix(ocelot, ANA_PGID_PGID, i);
1668 /* Don't do division by zero if there was no active
1669 * port. Just make all aggregation codes zero.
1671 if (num_active_ports)
1672 ac |= BIT(aggr_idx[i % num_active_ports]);
1673 ocelot_write_rix(ocelot, ac, ANA_PGID_PGID, i);
1676 /* Mark all ports in the same LAG as visited to avoid applying
1677 * the same config again.
1679 for (port = lag; port < ocelot->num_phys_ports; port++) {
1680 struct ocelot_port *ocelot_port = ocelot->ports[port];
1685 if (ocelot_port->bond == bond)
1686 visited |= BIT(port);
1691 /* When offloading a bonding interface, the switch ports configured under the
1692 * same bond must have the same logical port ID, equal to the physical port ID
1693 * of the lowest numbered physical port in that bond. Otherwise, in standalone/
1694 * bridged mode, each port has a logical port ID equal to its physical port ID.
1696 static void ocelot_setup_logical_port_ids(struct ocelot *ocelot)
1700 for (port = 0; port < ocelot->num_phys_ports; port++) {
1701 struct ocelot_port *ocelot_port = ocelot->ports[port];
1702 struct net_device *bond;
1707 bond = ocelot_port->bond;
1709 int lag = __ffs(ocelot_get_bond_mask(ocelot, bond,
1712 ocelot_rmw_gix(ocelot,
1713 ANA_PORT_PORT_CFG_PORTID_VAL(lag),
1714 ANA_PORT_PORT_CFG_PORTID_VAL_M,
1715 ANA_PORT_PORT_CFG, port);
1717 ocelot_rmw_gix(ocelot,
1718 ANA_PORT_PORT_CFG_PORTID_VAL(port),
1719 ANA_PORT_PORT_CFG_PORTID_VAL_M,
1720 ANA_PORT_PORT_CFG, port);
1725 int ocelot_port_lag_join(struct ocelot *ocelot, int port,
1726 struct net_device *bond,
1727 struct netdev_lag_upper_info *info)
1729 if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
1732 ocelot->ports[port]->bond = bond;
1734 ocelot_setup_logical_port_ids(ocelot);
1735 ocelot_apply_bridge_fwd_mask(ocelot);
1736 ocelot_set_aggr_pgids(ocelot);
1740 EXPORT_SYMBOL(ocelot_port_lag_join);
1742 void ocelot_port_lag_leave(struct ocelot *ocelot, int port,
1743 struct net_device *bond)
1745 ocelot->ports[port]->bond = NULL;
1747 ocelot_setup_logical_port_ids(ocelot);
1748 ocelot_apply_bridge_fwd_mask(ocelot);
1749 ocelot_set_aggr_pgids(ocelot);
1751 EXPORT_SYMBOL(ocelot_port_lag_leave);
1753 void ocelot_port_lag_change(struct ocelot *ocelot, int port, bool lag_tx_active)
1755 struct ocelot_port *ocelot_port = ocelot->ports[port];
1757 ocelot_port->lag_tx_active = lag_tx_active;
1759 /* Rebalance the LAGs */
1760 ocelot_set_aggr_pgids(ocelot);
1762 EXPORT_SYMBOL(ocelot_port_lag_change);
1764 /* Configure the maximum SDU (L2 payload) on RX to the value specified in @sdu.
1765 * The length of VLAN tags is accounted for automatically via DEV_MAC_TAGS_CFG.
1766 * In the special case that it's the NPI port that we're configuring, the
1767 * length of the tag and optional prefix needs to be accounted for privately,
1768 * in order to be able to sustain communication at the requested @sdu.
1770 void ocelot_port_set_maxlen(struct ocelot *ocelot, int port, size_t sdu)
1772 struct ocelot_port *ocelot_port = ocelot->ports[port];
1773 int maxlen = sdu + ETH_HLEN + ETH_FCS_LEN;
1774 int pause_start, pause_stop;
1777 if (port == ocelot->npi) {
1778 maxlen += OCELOT_TAG_LEN;
1780 if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
1781 maxlen += OCELOT_SHORT_PREFIX_LEN;
1782 else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
1783 maxlen += OCELOT_LONG_PREFIX_LEN;
1786 ocelot_port_writel(ocelot_port, maxlen, DEV_MAC_MAXLEN_CFG);
1788 /* Set Pause watermark hysteresis */
1789 pause_start = 6 * maxlen / OCELOT_BUFFER_CELL_SZ;
1790 pause_stop = 4 * maxlen / OCELOT_BUFFER_CELL_SZ;
1791 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_START,
1793 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_STOP,
1796 /* Tail dropping watermarks */
1797 atop_tot = (ocelot->packet_buffer_size - 9 * maxlen) /
1798 OCELOT_BUFFER_CELL_SZ;
1799 atop = (9 * maxlen) / OCELOT_BUFFER_CELL_SZ;
1800 ocelot_write_rix(ocelot, ocelot->ops->wm_enc(atop), SYS_ATOP, port);
1801 ocelot_write(ocelot, ocelot->ops->wm_enc(atop_tot), SYS_ATOP_TOT_CFG);
1803 EXPORT_SYMBOL(ocelot_port_set_maxlen);
1805 int ocelot_get_max_mtu(struct ocelot *ocelot, int port)
1807 int max_mtu = 65535 - ETH_HLEN - ETH_FCS_LEN;
1809 if (port == ocelot->npi) {
1810 max_mtu -= OCELOT_TAG_LEN;
1812 if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
1813 max_mtu -= OCELOT_SHORT_PREFIX_LEN;
1814 else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
1815 max_mtu -= OCELOT_LONG_PREFIX_LEN;
1820 EXPORT_SYMBOL(ocelot_get_max_mtu);
1822 static void ocelot_port_set_learning(struct ocelot *ocelot, int port,
1825 struct ocelot_port *ocelot_port = ocelot->ports[port];
1829 val = ANA_PORT_PORT_CFG_LEARN_ENA;
1831 ocelot_rmw_gix(ocelot, val, ANA_PORT_PORT_CFG_LEARN_ENA,
1832 ANA_PORT_PORT_CFG, port);
1834 ocelot_port->learn_ena = enabled;
1837 static void ocelot_port_set_ucast_flood(struct ocelot *ocelot, int port,
1845 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_UC);
1848 static void ocelot_port_set_mcast_flood(struct ocelot *ocelot, int port,
1856 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MC);
1859 static void ocelot_port_set_bcast_flood(struct ocelot *ocelot, int port,
1867 ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_BC);
1870 int ocelot_port_pre_bridge_flags(struct ocelot *ocelot, int port,
1871 struct switchdev_brport_flags flags)
1873 if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
1879 EXPORT_SYMBOL(ocelot_port_pre_bridge_flags);
1881 void ocelot_port_bridge_flags(struct ocelot *ocelot, int port,
1882 struct switchdev_brport_flags flags)
1884 if (flags.mask & BR_LEARNING)
1885 ocelot_port_set_learning(ocelot, port,
1886 !!(flags.val & BR_LEARNING));
1888 if (flags.mask & BR_FLOOD)
1889 ocelot_port_set_ucast_flood(ocelot, port,
1890 !!(flags.val & BR_FLOOD));
1892 if (flags.mask & BR_MCAST_FLOOD)
1893 ocelot_port_set_mcast_flood(ocelot, port,
1894 !!(flags.val & BR_MCAST_FLOOD));
1896 if (flags.mask & BR_BCAST_FLOOD)
1897 ocelot_port_set_bcast_flood(ocelot, port,
1898 !!(flags.val & BR_BCAST_FLOOD));
1900 EXPORT_SYMBOL(ocelot_port_bridge_flags);
1902 void ocelot_init_port(struct ocelot *ocelot, int port)
1904 struct ocelot_port *ocelot_port = ocelot->ports[port];
1906 skb_queue_head_init(&ocelot_port->tx_skbs);
1907 spin_lock_init(&ocelot_port->ts_id_lock);
1909 /* Basic L2 initialization */
1912 * FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 0
1913 * !FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 5
1915 ocelot_port_writel(ocelot_port, DEV_MAC_IFG_CFG_TX_IFG(5),
1918 /* Load seed (0) and set MAC HDX late collision */
1919 ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67) |
1920 DEV_MAC_HDX_CFG_SEED_LOAD,
1923 ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67),
1926 /* Set Max Length and maximum tags allowed */
1927 ocelot_port_set_maxlen(ocelot, port, ETH_DATA_LEN);
1928 ocelot_port_writel(ocelot_port, DEV_MAC_TAGS_CFG_TAG_ID(ETH_P_8021AD) |
1929 DEV_MAC_TAGS_CFG_VLAN_AWR_ENA |
1930 DEV_MAC_TAGS_CFG_VLAN_DBL_AWR_ENA |
1931 DEV_MAC_TAGS_CFG_VLAN_LEN_AWR_ENA,
1934 /* Set SMAC of Pause frame (00:00:00:00:00:00) */
1935 ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_HIGH_CFG);
1936 ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_LOW_CFG);
1938 /* Enable transmission of pause frames */
1939 ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 1);
1941 /* Drop frames with multicast source address */
1942 ocelot_rmw_gix(ocelot, ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
1943 ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
1944 ANA_PORT_DROP_CFG, port);
1946 /* Set default VLAN and tag type to 8021Q. */
1947 ocelot_rmw_gix(ocelot, REW_PORT_VLAN_CFG_PORT_TPID(ETH_P_8021Q),
1948 REW_PORT_VLAN_CFG_PORT_TPID_M,
1949 REW_PORT_VLAN_CFG, port);
1951 /* Disable source address learning for standalone mode */
1952 ocelot_port_set_learning(ocelot, port, false);
1954 /* Enable vcap lookups */
1955 ocelot_vcap_enable(ocelot, port);
1957 EXPORT_SYMBOL(ocelot_init_port);
1959 /* Configure and enable the CPU port module, which is a set of queues
1960 * accessible through register MMIO, frame DMA or Ethernet (in case
1961 * NPI mode is used).
1963 static void ocelot_cpu_port_init(struct ocelot *ocelot)
1965 int cpu = ocelot->num_phys_ports;
1967 /* The unicast destination PGID for the CPU port module is unused */
1968 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, cpu);
1969 /* Instead set up a multicast destination PGID for traffic copied to
1970 * the CPU. Whitelisted MAC addresses like the port netdevice MAC
1971 * addresses will be copied to the CPU via this PGID.
1973 ocelot_write_rix(ocelot, BIT(cpu), ANA_PGID_PGID, PGID_CPU);
1974 ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_RECV_ENA |
1975 ANA_PORT_PORT_CFG_PORTID_VAL(cpu),
1976 ANA_PORT_PORT_CFG, cpu);
1978 /* Enable CPU port module */
1979 ocelot_fields_write(ocelot, cpu, QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
1980 /* CPU port Injection/Extraction configuration */
1981 ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_XTR_HDR,
1982 OCELOT_TAG_PREFIX_NONE);
1983 ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_INJ_HDR,
1984 OCELOT_TAG_PREFIX_NONE);
1986 /* Configure the CPU port to be VLAN aware */
1987 ocelot_write_gix(ocelot, ANA_PORT_VLAN_CFG_VLAN_VID(0) |
1988 ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
1989 ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1),
1990 ANA_PORT_VLAN_CFG, cpu);
1993 static void ocelot_detect_features(struct ocelot *ocelot)
1997 /* For Ocelot, Felix, Seville, Serval etc, SYS:MMGT:MMGT:FREECNT holds
1998 * the number of 240-byte free memory words (aka 4-cell chunks) and not
1999 * 192 bytes as the documentation incorrectly says.
2001 mmgt = ocelot_read(ocelot, SYS_MMGT);
2002 ocelot->packet_buffer_size = 240 * SYS_MMGT_FREECNT(mmgt);
2004 eq_ctrl = ocelot_read(ocelot, QSYS_EQ_CTRL);
2005 ocelot->num_frame_refs = QSYS_MMGT_EQ_CTRL_FP_FREE_CNT(eq_ctrl);
2008 int ocelot_init(struct ocelot *ocelot)
2010 char queue_name[32];
2014 if (ocelot->ops->reset) {
2015 ret = ocelot->ops->reset(ocelot);
2017 dev_err(ocelot->dev, "Switch reset failed\n");
2022 ocelot->stats = devm_kcalloc(ocelot->dev,
2023 ocelot->num_phys_ports * ocelot->num_stats,
2024 sizeof(u64), GFP_KERNEL);
2028 mutex_init(&ocelot->stats_lock);
2029 mutex_init(&ocelot->ptp_lock);
2030 spin_lock_init(&ocelot->ptp_clock_lock);
2031 snprintf(queue_name, sizeof(queue_name), "%s-stats",
2032 dev_name(ocelot->dev));
2033 ocelot->stats_queue = create_singlethread_workqueue(queue_name);
2034 if (!ocelot->stats_queue)
2037 ocelot->owq = alloc_ordered_workqueue("ocelot-owq", 0);
2039 destroy_workqueue(ocelot->stats_queue);
2043 INIT_LIST_HEAD(&ocelot->multicast);
2044 INIT_LIST_HEAD(&ocelot->pgids);
2045 ocelot_detect_features(ocelot);
2046 ocelot_mact_init(ocelot);
2047 ocelot_vlan_init(ocelot);
2048 ocelot_vcap_init(ocelot);
2049 ocelot_cpu_port_init(ocelot);
2051 for (port = 0; port < ocelot->num_phys_ports; port++) {
2052 /* Clear all counters (5 groups) */
2053 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port) |
2054 SYS_STAT_CFG_STAT_CLEAR_SHOT(0x7f),
2058 /* Only use S-Tag */
2059 ocelot_write(ocelot, ETH_P_8021AD, SYS_VLAN_ETYPE_CFG);
2061 /* Aggregation mode */
2062 ocelot_write(ocelot, ANA_AGGR_CFG_AC_SMAC_ENA |
2063 ANA_AGGR_CFG_AC_DMAC_ENA |
2064 ANA_AGGR_CFG_AC_IP4_SIPDIP_ENA |
2065 ANA_AGGR_CFG_AC_IP4_TCPUDP_ENA |
2066 ANA_AGGR_CFG_AC_IP6_FLOW_LBL_ENA |
2067 ANA_AGGR_CFG_AC_IP6_TCPUDP_ENA,
2070 /* Set MAC age time to default value. The entry is aged after
2073 ocelot_write(ocelot,
2074 ANA_AUTOAGE_AGE_PERIOD(BR_DEFAULT_AGEING_TIME / 2 / HZ),
2077 /* Disable learning for frames discarded by VLAN ingress filtering */
2078 regmap_field_write(ocelot->regfields[ANA_ADVLEARN_VLAN_CHK], 1);
2080 /* Setup frame ageing - fixed value "2 sec" - in 6.5 us units */
2081 ocelot_write(ocelot, SYS_FRM_AGING_AGE_TX_ENA |
2082 SYS_FRM_AGING_MAX_AGE(307692), SYS_FRM_AGING);
2084 /* Setup flooding PGIDs */
2085 for (i = 0; i < ocelot->num_flooding_pgids; i++)
2086 ocelot_write_rix(ocelot, ANA_FLOODING_FLD_MULTICAST(PGID_MC) |
2087 ANA_FLOODING_FLD_BROADCAST(PGID_BC) |
2088 ANA_FLOODING_FLD_UNICAST(PGID_UC),
2090 ocelot_write(ocelot, ANA_FLOODING_IPMC_FLD_MC6_DATA(PGID_MCIPV6) |
2091 ANA_FLOODING_IPMC_FLD_MC6_CTRL(PGID_MC) |
2092 ANA_FLOODING_IPMC_FLD_MC4_DATA(PGID_MCIPV4) |
2093 ANA_FLOODING_IPMC_FLD_MC4_CTRL(PGID_MC),
2096 for (port = 0; port < ocelot->num_phys_ports; port++) {
2097 /* Transmit the frame to the local port. */
2098 ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
2099 /* Do not forward BPDU frames to the front ports. */
2100 ocelot_write_gix(ocelot,
2101 ANA_PORT_CPU_FWD_BPDU_CFG_BPDU_REDIR_ENA(0xffff),
2102 ANA_PORT_CPU_FWD_BPDU_CFG,
2104 /* Ensure bridging is disabled */
2105 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_SRC + port);
2108 for_each_nonreserved_multicast_dest_pgid(ocelot, i) {
2109 u32 val = ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports - 1, 0));
2111 ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
2114 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_BLACKHOLE);
2116 /* Allow broadcast and unknown L2 multicast to the CPU. */
2117 ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2118 ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2119 ANA_PGID_PGID, PGID_MC);
2120 ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2121 ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
2122 ANA_PGID_PGID, PGID_BC);
2123 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV4);
2124 ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV6);
2126 /* Allow manual injection via DEVCPU_QS registers, and byte swap these
2127 * registers endianness.
2129 ocelot_write_rix(ocelot, QS_INJ_GRP_CFG_BYTE_SWAP |
2130 QS_INJ_GRP_CFG_MODE(1), QS_INJ_GRP_CFG, 0);
2131 ocelot_write_rix(ocelot, QS_XTR_GRP_CFG_BYTE_SWAP |
2132 QS_XTR_GRP_CFG_MODE(1), QS_XTR_GRP_CFG, 0);
2133 ocelot_write(ocelot, ANA_CPUQ_CFG_CPUQ_MIRROR(2) |
2134 ANA_CPUQ_CFG_CPUQ_LRN(2) |
2135 ANA_CPUQ_CFG_CPUQ_MAC_COPY(2) |
2136 ANA_CPUQ_CFG_CPUQ_SRC_COPY(2) |
2137 ANA_CPUQ_CFG_CPUQ_LOCKED_PORTMOVE(2) |
2138 ANA_CPUQ_CFG_CPUQ_ALLBRIDGE(6) |
2139 ANA_CPUQ_CFG_CPUQ_IPMC_CTRL(6) |
2140 ANA_CPUQ_CFG_CPUQ_IGMP(6) |
2141 ANA_CPUQ_CFG_CPUQ_MLD(6), ANA_CPUQ_CFG);
2142 for (i = 0; i < 16; i++)
2143 ocelot_write_rix(ocelot, ANA_CPUQ_8021_CFG_CPUQ_GARP_VAL(6) |
2144 ANA_CPUQ_8021_CFG_CPUQ_BPDU_VAL(6),
2145 ANA_CPUQ_8021_CFG, i);
2147 INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work);
2148 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work,
2149 OCELOT_STATS_CHECK_DELAY);
2153 EXPORT_SYMBOL(ocelot_init);
2155 void ocelot_deinit(struct ocelot *ocelot)
2157 cancel_delayed_work(&ocelot->stats_work);
2158 destroy_workqueue(ocelot->stats_queue);
2159 destroy_workqueue(ocelot->owq);
2160 mutex_destroy(&ocelot->stats_lock);
2162 EXPORT_SYMBOL(ocelot_deinit);
2164 void ocelot_deinit_port(struct ocelot *ocelot, int port)
2166 struct ocelot_port *ocelot_port = ocelot->ports[port];
2168 skb_queue_purge(&ocelot_port->tx_skbs);
2170 EXPORT_SYMBOL(ocelot_deinit_port);
2172 MODULE_LICENSE("Dual MIT/GPL");