2 * drivers/net/ethernet/rocker/rocker.c - Rocker switch device driver
3 * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
4 * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/pci.h>
15 #include <linux/interrupt.h>
16 #include <linux/sched.h>
17 #include <linux/wait.h>
18 #include <linux/spinlock.h>
19 #include <linux/hashtable.h>
20 #include <linux/crc32.h>
21 #include <linux/sort.h>
22 #include <linux/random.h>
23 #include <linux/netdevice.h>
24 #include <linux/inetdevice.h>
25 #include <linux/skbuff.h>
26 #include <linux/socket.h>
27 #include <linux/etherdevice.h>
28 #include <linux/ethtool.h>
29 #include <linux/if_ether.h>
30 #include <linux/if_vlan.h>
31 #include <linux/if_bridge.h>
32 #include <linux/bitops.h>
33 #include <net/switchdev.h>
34 #include <net/rtnetlink.h>
35 #include <asm-generic/io-64-nonatomic-lo-hi.h>
36 #include <generated/utsrelease.h>
40 static const char rocker_driver_name[] = "rocker";
42 static const struct pci_device_id rocker_pci_id_table[] = {
43 {PCI_VDEVICE(REDHAT, PCI_DEVICE_ID_REDHAT_ROCKER), 0},
47 struct rocker_flow_tbl_key {
49 enum rocker_of_dpa_table_id tbl_id;
54 enum rocker_of_dpa_table_id goto_tbl;
60 enum rocker_of_dpa_table_id goto_tbl;
69 u8 eth_dst_mask[ETH_ALEN];
72 enum rocker_of_dpa_table_id goto_tbl;
79 enum rocker_of_dpa_table_id goto_tbl;
84 u8 eth_dst_mask[ETH_ALEN];
89 enum rocker_of_dpa_table_id goto_tbl;
97 u8 eth_src_mask[ETH_ALEN];
99 u8 eth_dst_mask[ETH_ALEN];
112 struct rocker_flow_tbl_entry {
113 struct hlist_node entry;
116 struct rocker_flow_tbl_key key;
117 u32 key_crc32; /* key */
120 struct rocker_group_tbl_entry {
121 struct hlist_node entry;
123 u32 group_id; /* key */
131 u8 eth_src[ETH_ALEN];
132 u8 eth_dst[ETH_ALEN];
137 u8 eth_src[ETH_ALEN];
138 u8 eth_dst[ETH_ALEN];
146 struct rocker_fdb_tbl_entry {
147 struct hlist_node entry;
148 u32 key_crc32; /* key */
150 struct rocker_fdb_tbl_key {
157 struct rocker_internal_vlan_tbl_entry {
158 struct hlist_node entry;
159 int ifindex; /* key */
164 struct rocker_desc_info {
165 char *data; /* mapped */
168 struct rocker_desc *desc;
169 DEFINE_DMA_UNMAP_ADDR(mapaddr);
172 struct rocker_dma_ring_info {
176 struct rocker_desc *desc; /* mapped */
178 struct rocker_desc_info *desc_info;
185 ROCKER_CTRL_LINK_LOCAL_MCAST,
186 ROCKER_CTRL_LOCAL_ARP,
187 ROCKER_CTRL_IPV4_MCAST,
188 ROCKER_CTRL_IPV6_MCAST,
189 ROCKER_CTRL_DFLT_BRIDGING,
193 #define ROCKER_INTERNAL_VLAN_ID_BASE 0x0f00
194 #define ROCKER_N_INTERNAL_VLANS 255
195 #define ROCKER_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID)
196 #define ROCKER_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(ROCKER_N_INTERNAL_VLANS)
199 struct net_device *dev;
200 struct net_device *bridge_dev;
201 struct rocker *rocker;
202 unsigned int port_number;
204 __be16 internal_vlan_id;
207 bool ctrls[ROCKER_CTRL_MAX];
208 unsigned long vlan_bitmap[ROCKER_VLAN_BITMAP_LEN];
209 struct napi_struct napi_tx;
210 struct napi_struct napi_rx;
211 struct rocker_dma_ring_info tx_ring;
212 struct rocker_dma_ring_info rx_ring;
216 struct pci_dev *pdev;
218 struct msix_entry *msix_entries;
219 unsigned int port_count;
220 struct rocker_port **ports;
224 spinlock_t cmd_ring_lock;
225 struct rocker_dma_ring_info cmd_ring;
226 struct rocker_dma_ring_info event_ring;
227 DECLARE_HASHTABLE(flow_tbl, 16);
228 spinlock_t flow_tbl_lock;
229 u64 flow_tbl_next_cookie;
230 DECLARE_HASHTABLE(group_tbl, 16);
231 spinlock_t group_tbl_lock;
232 DECLARE_HASHTABLE(fdb_tbl, 16);
233 spinlock_t fdb_tbl_lock;
234 unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN];
235 DECLARE_HASHTABLE(internal_vlan_tbl, 8);
236 spinlock_t internal_vlan_tbl_lock;
239 static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
240 static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
241 static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
242 static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
243 static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
244 static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
245 static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
246 static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
247 static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
249 /* Rocker priority levels for flow table entries. Higher
250 * priority match takes precedence over lower priority match.
254 ROCKER_PRIORITY_UNKNOWN = 0,
255 ROCKER_PRIORITY_IG_PORT = 1,
256 ROCKER_PRIORITY_VLAN = 1,
257 ROCKER_PRIORITY_TERM_MAC_UCAST = 0,
258 ROCKER_PRIORITY_TERM_MAC_MCAST = 1,
259 ROCKER_PRIORITY_UNICAST_ROUTING = 1,
260 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1,
261 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2,
262 ROCKER_PRIORITY_BRIDGING_VLAN = 3,
263 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1,
264 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2,
265 ROCKER_PRIORITY_BRIDGING_TENANT = 3,
266 ROCKER_PRIORITY_ACL_CTRL = 3,
267 ROCKER_PRIORITY_ACL_NORMAL = 2,
268 ROCKER_PRIORITY_ACL_DFLT = 1,
271 static bool rocker_vlan_id_is_internal(__be16 vlan_id)
273 u16 start = ROCKER_INTERNAL_VLAN_ID_BASE;
275 u16 _vlan_id = ntohs(vlan_id);
277 return (_vlan_id >= start && _vlan_id <= end);
280 static __be16 rocker_port_vid_to_vlan(struct rocker_port *rocker_port,
281 u16 vid, bool *pop_vlan)
287 vlan_id = htons(vid);
289 vlan_id = rocker_port->internal_vlan_id;
297 static u16 rocker_port_vlan_to_vid(struct rocker_port *rocker_port,
300 if (rocker_vlan_id_is_internal(vlan_id))
303 return ntohs(vlan_id);
306 static bool rocker_port_is_bridged(struct rocker_port *rocker_port)
308 return !!rocker_port->bridge_dev;
312 wait_queue_head_t wait;
317 static void rocker_wait_reset(struct rocker_wait *wait)
320 wait->nowait = false;
323 static void rocker_wait_init(struct rocker_wait *wait)
325 init_waitqueue_head(&wait->wait);
326 rocker_wait_reset(wait);
329 static struct rocker_wait *rocker_wait_create(gfp_t gfp)
331 struct rocker_wait *wait;
333 wait = kmalloc(sizeof(*wait), gfp);
336 rocker_wait_init(wait);
340 static void rocker_wait_destroy(struct rocker_wait *work)
345 static bool rocker_wait_event_timeout(struct rocker_wait *wait,
346 unsigned long timeout)
348 wait_event_timeout(wait->wait, wait->done, HZ / 10);
354 static void rocker_wait_wake_up(struct rocker_wait *wait)
357 wake_up(&wait->wait);
360 static u32 rocker_msix_vector(struct rocker *rocker, unsigned int vector)
362 return rocker->msix_entries[vector].vector;
365 static u32 rocker_msix_tx_vector(struct rocker_port *rocker_port)
367 return rocker_msix_vector(rocker_port->rocker,
368 ROCKER_MSIX_VEC_TX(rocker_port->port_number));
371 static u32 rocker_msix_rx_vector(struct rocker_port *rocker_port)
373 return rocker_msix_vector(rocker_port->rocker,
374 ROCKER_MSIX_VEC_RX(rocker_port->port_number));
377 #define rocker_write32(rocker, reg, val) \
378 writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))
379 #define rocker_read32(rocker, reg) \
380 readl((rocker)->hw_addr + (ROCKER_ ## reg))
381 #define rocker_write64(rocker, reg, val) \
382 writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))
383 #define rocker_read64(rocker, reg) \
384 readq((rocker)->hw_addr + (ROCKER_ ## reg))
386 /*****************************
387 * HW basic testing functions
388 *****************************/
390 static int rocker_reg_test(struct rocker *rocker)
392 struct pci_dev *pdev = rocker->pdev;
398 rocker_write32(rocker, TEST_REG, rnd);
399 test_reg = rocker_read32(rocker, TEST_REG);
400 if (test_reg != rnd * 2) {
401 dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n",
408 rnd |= prandom_u32();
409 rocker_write64(rocker, TEST_REG64, rnd);
410 test_reg = rocker_read64(rocker, TEST_REG64);
411 if (test_reg != rnd * 2) {
412 dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n",
420 static int rocker_dma_test_one(struct rocker *rocker, struct rocker_wait *wait,
421 u32 test_type, dma_addr_t dma_handle,
422 unsigned char *buf, unsigned char *expect,
425 struct pci_dev *pdev = rocker->pdev;
428 rocker_wait_reset(wait);
429 rocker_write32(rocker, TEST_DMA_CTRL, test_type);
431 if (!rocker_wait_event_timeout(wait, HZ / 10)) {
432 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
436 for (i = 0; i < size; i++) {
437 if (buf[i] != expect[i]) {
438 dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected",
439 buf[i], i, expect[i]);
446 #define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)
447 #define ROCKER_TEST_DMA_FILL_PATTERN 0x96
449 static int rocker_dma_test_offset(struct rocker *rocker,
450 struct rocker_wait *wait, int offset)
452 struct pci_dev *pdev = rocker->pdev;
453 unsigned char *alloc;
455 unsigned char *expect;
456 dma_addr_t dma_handle;
460 alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset,
461 GFP_KERNEL | GFP_DMA);
464 buf = alloc + offset;
465 expect = buf + ROCKER_TEST_DMA_BUF_SIZE;
467 dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE,
468 PCI_DMA_BIDIRECTIONAL);
469 if (pci_dma_mapping_error(pdev, dma_handle)) {
474 rocker_write64(rocker, TEST_DMA_ADDR, dma_handle);
475 rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE);
477 memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE);
478 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL,
479 dma_handle, buf, expect,
480 ROCKER_TEST_DMA_BUF_SIZE);
484 memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE);
485 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR,
486 dma_handle, buf, expect,
487 ROCKER_TEST_DMA_BUF_SIZE);
491 prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
492 for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++)
494 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT,
495 dma_handle, buf, expect,
496 ROCKER_TEST_DMA_BUF_SIZE);
501 pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE,
502 PCI_DMA_BIDIRECTIONAL);
509 static int rocker_dma_test(struct rocker *rocker, struct rocker_wait *wait)
514 for (i = 0; i < 8; i++) {
515 err = rocker_dma_test_offset(rocker, wait, i);
522 static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id)
524 struct rocker_wait *wait = dev_id;
526 rocker_wait_wake_up(wait);
531 static int rocker_basic_hw_test(struct rocker *rocker)
533 struct pci_dev *pdev = rocker->pdev;
534 struct rocker_wait wait;
537 err = rocker_reg_test(rocker);
539 dev_err(&pdev->dev, "reg test failed\n");
543 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST),
544 rocker_test_irq_handler, 0,
545 rocker_driver_name, &wait);
547 dev_err(&pdev->dev, "cannot assign test irq\n");
551 rocker_wait_init(&wait);
552 rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST);
554 if (!rocker_wait_event_timeout(&wait, HZ / 10)) {
555 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
560 err = rocker_dma_test(rocker, &wait);
562 dev_err(&pdev->dev, "dma test failed\n");
565 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait);
573 #define ROCKER_TLV_ALIGNTO 8U
574 #define ROCKER_TLV_ALIGN(len) \
575 (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
576 #define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
578 /* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
579 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
580 * | Header | Pad | Payload | Pad |
581 * | (struct rocker_tlv) | ing | | ing |
582 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
583 * <--------------------------- tlv->len -------------------------->
586 static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv,
589 int totlen = ROCKER_TLV_ALIGN(tlv->len);
591 *remaining -= totlen;
592 return (struct rocker_tlv *) ((char *) tlv + totlen);
595 static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining)
597 return remaining >= (int) ROCKER_TLV_HDRLEN &&
598 tlv->len >= ROCKER_TLV_HDRLEN &&
599 tlv->len <= remaining;
602 #define rocker_tlv_for_each(pos, head, len, rem) \
603 for (pos = head, rem = len; \
604 rocker_tlv_ok(pos, rem); \
605 pos = rocker_tlv_next(pos, &(rem)))
607 #define rocker_tlv_for_each_nested(pos, tlv, rem) \
608 rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
609 rocker_tlv_len(tlv), rem)
611 static int rocker_tlv_attr_size(int payload)
613 return ROCKER_TLV_HDRLEN + payload;
616 static int rocker_tlv_total_size(int payload)
618 return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload));
621 static int rocker_tlv_padlen(int payload)
623 return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload);
626 static int rocker_tlv_type(const struct rocker_tlv *tlv)
631 static void *rocker_tlv_data(const struct rocker_tlv *tlv)
633 return (char *) tlv + ROCKER_TLV_HDRLEN;
636 static int rocker_tlv_len(const struct rocker_tlv *tlv)
638 return tlv->len - ROCKER_TLV_HDRLEN;
641 static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv)
643 return *(u8 *) rocker_tlv_data(tlv);
646 static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv)
648 return *(u16 *) rocker_tlv_data(tlv);
651 static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv)
653 return *(__be16 *) rocker_tlv_data(tlv);
656 static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv)
658 return *(u32 *) rocker_tlv_data(tlv);
661 static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv)
663 return *(u64 *) rocker_tlv_data(tlv);
666 static void rocker_tlv_parse(struct rocker_tlv **tb, int maxtype,
667 const char *buf, int buf_len)
669 const struct rocker_tlv *tlv;
670 const struct rocker_tlv *head = (const struct rocker_tlv *) buf;
673 memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1));
675 rocker_tlv_for_each(tlv, head, buf_len, rem) {
676 u32 type = rocker_tlv_type(tlv);
678 if (type > 0 && type <= maxtype)
679 tb[type] = (struct rocker_tlv *) tlv;
683 static void rocker_tlv_parse_nested(struct rocker_tlv **tb, int maxtype,
684 const struct rocker_tlv *tlv)
686 rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv),
687 rocker_tlv_len(tlv));
690 static void rocker_tlv_parse_desc(struct rocker_tlv **tb, int maxtype,
691 struct rocker_desc_info *desc_info)
693 rocker_tlv_parse(tb, maxtype, desc_info->data,
694 desc_info->desc->tlv_size);
697 static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info)
699 return (struct rocker_tlv *) ((char *) desc_info->data +
700 desc_info->tlv_size);
703 static int rocker_tlv_put(struct rocker_desc_info *desc_info,
704 int attrtype, int attrlen, const void *data)
706 int tail_room = desc_info->data_size - desc_info->tlv_size;
707 int total_size = rocker_tlv_total_size(attrlen);
708 struct rocker_tlv *tlv;
710 if (unlikely(tail_room < total_size))
713 tlv = rocker_tlv_start(desc_info);
714 desc_info->tlv_size += total_size;
715 tlv->type = attrtype;
716 tlv->len = rocker_tlv_attr_size(attrlen);
717 memcpy(rocker_tlv_data(tlv), data, attrlen);
718 memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen));
722 static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info,
723 int attrtype, u8 value)
725 return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value);
728 static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info,
729 int attrtype, u16 value)
731 return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value);
734 static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info,
735 int attrtype, __be16 value)
737 return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value);
740 static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info,
741 int attrtype, u32 value)
743 return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value);
746 static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info,
747 int attrtype, __be32 value)
749 return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value);
752 static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info,
753 int attrtype, u64 value)
755 return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value);
758 static struct rocker_tlv *
759 rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype)
761 struct rocker_tlv *start = rocker_tlv_start(desc_info);
763 if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0)
769 static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info,
770 struct rocker_tlv *start)
772 start->len = (char *) rocker_tlv_start(desc_info) - (char *) start;
775 static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info,
776 struct rocker_tlv *start)
778 desc_info->tlv_size = (char *) start - desc_info->data;
781 /******************************************
782 * DMA rings and descriptors manipulations
783 ******************************************/
785 static u32 __pos_inc(u32 pos, size_t limit)
787 return ++pos == limit ? 0 : pos;
790 static int rocker_desc_err(struct rocker_desc_info *desc_info)
792 return -(desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN);
795 static void rocker_desc_gen_clear(struct rocker_desc_info *desc_info)
797 desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN;
800 static bool rocker_desc_gen(struct rocker_desc_info *desc_info)
802 u32 comp_err = desc_info->desc->comp_err;
804 return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false;
807 static void *rocker_desc_cookie_ptr_get(struct rocker_desc_info *desc_info)
809 return (void *)(uintptr_t)desc_info->desc->cookie;
812 static void rocker_desc_cookie_ptr_set(struct rocker_desc_info *desc_info,
815 desc_info->desc->cookie = (uintptr_t) ptr;
818 static struct rocker_desc_info *
819 rocker_desc_head_get(struct rocker_dma_ring_info *info)
821 static struct rocker_desc_info *desc_info;
822 u32 head = __pos_inc(info->head, info->size);
824 desc_info = &info->desc_info[info->head];
825 if (head == info->tail)
826 return NULL; /* ring full */
827 desc_info->tlv_size = 0;
831 static void rocker_desc_commit(struct rocker_desc_info *desc_info)
833 desc_info->desc->buf_size = desc_info->data_size;
834 desc_info->desc->tlv_size = desc_info->tlv_size;
837 static void rocker_desc_head_set(struct rocker *rocker,
838 struct rocker_dma_ring_info *info,
839 struct rocker_desc_info *desc_info)
841 u32 head = __pos_inc(info->head, info->size);
843 BUG_ON(head == info->tail);
844 rocker_desc_commit(desc_info);
846 rocker_write32(rocker, DMA_DESC_HEAD(info->type), head);
849 static struct rocker_desc_info *
850 rocker_desc_tail_get(struct rocker_dma_ring_info *info)
852 static struct rocker_desc_info *desc_info;
854 if (info->tail == info->head)
855 return NULL; /* nothing to be done between head and tail */
856 desc_info = &info->desc_info[info->tail];
857 if (!rocker_desc_gen(desc_info))
858 return NULL; /* gen bit not set, desc is not ready yet */
859 info->tail = __pos_inc(info->tail, info->size);
860 desc_info->tlv_size = desc_info->desc->tlv_size;
864 static void rocker_dma_ring_credits_set(struct rocker *rocker,
865 struct rocker_dma_ring_info *info,
869 rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits);
872 static unsigned long rocker_dma_ring_size_fix(size_t size)
874 return max(ROCKER_DMA_SIZE_MIN,
875 min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX));
878 static int rocker_dma_ring_create(struct rocker *rocker,
881 struct rocker_dma_ring_info *info)
885 BUG_ON(size != rocker_dma_ring_size_fix(size));
890 info->desc_info = kcalloc(info->size, sizeof(*info->desc_info),
892 if (!info->desc_info)
895 info->desc = pci_alloc_consistent(rocker->pdev,
896 info->size * sizeof(*info->desc),
899 kfree(info->desc_info);
903 for (i = 0; i < info->size; i++)
904 info->desc_info[i].desc = &info->desc[i];
906 rocker_write32(rocker, DMA_DESC_CTRL(info->type),
907 ROCKER_DMA_DESC_CTRL_RESET);
908 rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr);
909 rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size);
914 static void rocker_dma_ring_destroy(struct rocker *rocker,
915 struct rocker_dma_ring_info *info)
917 rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0);
919 pci_free_consistent(rocker->pdev,
920 info->size * sizeof(struct rocker_desc),
921 info->desc, info->mapaddr);
922 kfree(info->desc_info);
925 static void rocker_dma_ring_pass_to_producer(struct rocker *rocker,
926 struct rocker_dma_ring_info *info)
930 BUG_ON(info->head || info->tail);
932 /* When ring is consumer, we need to advance head for each desc.
933 * That tells hw that the desc is ready to be used by it.
935 for (i = 0; i < info->size - 1; i++)
936 rocker_desc_head_set(rocker, info, &info->desc_info[i]);
937 rocker_desc_commit(&info->desc_info[i]);
940 static int rocker_dma_ring_bufs_alloc(struct rocker *rocker,
941 struct rocker_dma_ring_info *info,
942 int direction, size_t buf_size)
944 struct pci_dev *pdev = rocker->pdev;
948 for (i = 0; i < info->size; i++) {
949 struct rocker_desc_info *desc_info = &info->desc_info[i];
950 struct rocker_desc *desc = &info->desc[i];
951 dma_addr_t dma_handle;
954 buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA);
960 dma_handle = pci_map_single(pdev, buf, buf_size, direction);
961 if (pci_dma_mapping_error(pdev, dma_handle)) {
967 desc_info->data = buf;
968 desc_info->data_size = buf_size;
969 dma_unmap_addr_set(desc_info, mapaddr, dma_handle);
971 desc->buf_addr = dma_handle;
972 desc->buf_size = buf_size;
977 for (i--; i >= 0; i--) {
978 struct rocker_desc_info *desc_info = &info->desc_info[i];
980 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
981 desc_info->data_size, direction);
982 kfree(desc_info->data);
987 static void rocker_dma_ring_bufs_free(struct rocker *rocker,
988 struct rocker_dma_ring_info *info,
991 struct pci_dev *pdev = rocker->pdev;
994 for (i = 0; i < info->size; i++) {
995 struct rocker_desc_info *desc_info = &info->desc_info[i];
996 struct rocker_desc *desc = &info->desc[i];
1000 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1001 desc_info->data_size, direction);
1002 kfree(desc_info->data);
1006 static int rocker_dma_rings_init(struct rocker *rocker)
1008 struct pci_dev *pdev = rocker->pdev;
1011 err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD,
1012 ROCKER_DMA_CMD_DEFAULT_SIZE,
1015 dev_err(&pdev->dev, "failed to create command dma ring\n");
1019 spin_lock_init(&rocker->cmd_ring_lock);
1021 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring,
1022 PCI_DMA_BIDIRECTIONAL, PAGE_SIZE);
1024 dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n");
1025 goto err_dma_cmd_ring_bufs_alloc;
1028 err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT,
1029 ROCKER_DMA_EVENT_DEFAULT_SIZE,
1030 &rocker->event_ring);
1032 dev_err(&pdev->dev, "failed to create event dma ring\n");
1033 goto err_dma_event_ring_create;
1036 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring,
1037 PCI_DMA_FROMDEVICE, PAGE_SIZE);
1039 dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n");
1040 goto err_dma_event_ring_bufs_alloc;
1042 rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring);
1045 err_dma_event_ring_bufs_alloc:
1046 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1047 err_dma_event_ring_create:
1048 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1049 PCI_DMA_BIDIRECTIONAL);
1050 err_dma_cmd_ring_bufs_alloc:
1051 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1055 static void rocker_dma_rings_fini(struct rocker *rocker)
1057 rocker_dma_ring_bufs_free(rocker, &rocker->event_ring,
1058 PCI_DMA_BIDIRECTIONAL);
1059 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1060 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1061 PCI_DMA_BIDIRECTIONAL);
1062 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1065 static int rocker_dma_rx_ring_skb_map(struct rocker *rocker,
1066 struct rocker_port *rocker_port,
1067 struct rocker_desc_info *desc_info,
1068 struct sk_buff *skb, size_t buf_len)
1070 struct pci_dev *pdev = rocker->pdev;
1071 dma_addr_t dma_handle;
1073 dma_handle = pci_map_single(pdev, skb->data, buf_len,
1074 PCI_DMA_FROMDEVICE);
1075 if (pci_dma_mapping_error(pdev, dma_handle))
1077 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle))
1078 goto tlv_put_failure;
1079 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len))
1080 goto tlv_put_failure;
1084 pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE);
1085 desc_info->tlv_size = 0;
1089 static size_t rocker_port_rx_buf_len(struct rocker_port *rocker_port)
1091 return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
1094 static int rocker_dma_rx_ring_skb_alloc(struct rocker *rocker,
1095 struct rocker_port *rocker_port,
1096 struct rocker_desc_info *desc_info)
1098 struct net_device *dev = rocker_port->dev;
1099 struct sk_buff *skb;
1100 size_t buf_len = rocker_port_rx_buf_len(rocker_port);
1103 /* Ensure that hw will see tlv_size zero in case of an error.
1104 * That tells hw to use another descriptor.
1106 rocker_desc_cookie_ptr_set(desc_info, NULL);
1107 desc_info->tlv_size = 0;
1109 skb = netdev_alloc_skb_ip_align(dev, buf_len);
1112 err = rocker_dma_rx_ring_skb_map(rocker, rocker_port, desc_info,
1115 dev_kfree_skb_any(skb);
1118 rocker_desc_cookie_ptr_set(desc_info, skb);
1122 static void rocker_dma_rx_ring_skb_unmap(struct rocker *rocker,
1123 struct rocker_tlv **attrs)
1125 struct pci_dev *pdev = rocker->pdev;
1126 dma_addr_t dma_handle;
1129 if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] ||
1130 !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN])
1132 dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]);
1133 len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]);
1134 pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE);
1137 static void rocker_dma_rx_ring_skb_free(struct rocker *rocker,
1138 struct rocker_desc_info *desc_info)
1140 struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
1141 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
1145 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
1146 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
1147 dev_kfree_skb_any(skb);
1150 static int rocker_dma_rx_ring_skbs_alloc(struct rocker *rocker,
1151 struct rocker_port *rocker_port)
1153 struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
1157 for (i = 0; i < rx_ring->size; i++) {
1158 err = rocker_dma_rx_ring_skb_alloc(rocker, rocker_port,
1159 &rx_ring->desc_info[i]);
1166 for (i--; i >= 0; i--)
1167 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1171 static void rocker_dma_rx_ring_skbs_free(struct rocker *rocker,
1172 struct rocker_port *rocker_port)
1174 struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
1177 for (i = 0; i < rx_ring->size; i++)
1178 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1181 static int rocker_port_dma_rings_init(struct rocker_port *rocker_port)
1183 struct rocker *rocker = rocker_port->rocker;
1186 err = rocker_dma_ring_create(rocker,
1187 ROCKER_DMA_TX(rocker_port->port_number),
1188 ROCKER_DMA_TX_DEFAULT_SIZE,
1189 &rocker_port->tx_ring);
1191 netdev_err(rocker_port->dev, "failed to create tx dma ring\n");
1195 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring,
1197 ROCKER_DMA_TX_DESC_SIZE);
1199 netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n");
1200 goto err_dma_tx_ring_bufs_alloc;
1203 err = rocker_dma_ring_create(rocker,
1204 ROCKER_DMA_RX(rocker_port->port_number),
1205 ROCKER_DMA_RX_DEFAULT_SIZE,
1206 &rocker_port->rx_ring);
1208 netdev_err(rocker_port->dev, "failed to create rx dma ring\n");
1209 goto err_dma_rx_ring_create;
1212 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring,
1213 PCI_DMA_BIDIRECTIONAL,
1214 ROCKER_DMA_RX_DESC_SIZE);
1216 netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n");
1217 goto err_dma_rx_ring_bufs_alloc;
1220 err = rocker_dma_rx_ring_skbs_alloc(rocker, rocker_port);
1222 netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n");
1223 goto err_dma_rx_ring_skbs_alloc;
1225 rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring);
1229 err_dma_rx_ring_skbs_alloc:
1230 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1231 PCI_DMA_BIDIRECTIONAL);
1232 err_dma_rx_ring_bufs_alloc:
1233 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1234 err_dma_rx_ring_create:
1235 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1237 err_dma_tx_ring_bufs_alloc:
1238 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1242 static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port)
1244 struct rocker *rocker = rocker_port->rocker;
1246 rocker_dma_rx_ring_skbs_free(rocker, rocker_port);
1247 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1248 PCI_DMA_BIDIRECTIONAL);
1249 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1250 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1252 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1255 static void rocker_port_set_enable(struct rocker_port *rocker_port, bool enable)
1257 u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);
1260 val |= 1 << rocker_port->lport;
1262 val &= ~(1 << rocker_port->lport);
1263 rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
1266 /********************************
1267 * Interrupt handler and helpers
1268 ********************************/
1270 static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id)
1272 struct rocker *rocker = dev_id;
1273 struct rocker_desc_info *desc_info;
1274 struct rocker_wait *wait;
1277 spin_lock(&rocker->cmd_ring_lock);
1278 while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) {
1279 wait = rocker_desc_cookie_ptr_get(desc_info);
1281 rocker_desc_gen_clear(desc_info);
1282 rocker_wait_destroy(wait);
1284 rocker_wait_wake_up(wait);
1288 spin_unlock(&rocker->cmd_ring_lock);
1289 rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits);
1294 static void rocker_port_link_up(struct rocker_port *rocker_port)
1296 netif_carrier_on(rocker_port->dev);
1297 netdev_info(rocker_port->dev, "Link is up\n");
1300 static void rocker_port_link_down(struct rocker_port *rocker_port)
1302 netif_carrier_off(rocker_port->dev);
1303 netdev_info(rocker_port->dev, "Link is down\n");
1306 static int rocker_event_link_change(struct rocker *rocker,
1307 const struct rocker_tlv *info)
1309 struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1];
1310 unsigned int port_number;
1312 struct rocker_port *rocker_port;
1314 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info);
1315 if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LPORT] ||
1316 !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP])
1319 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LPORT]) - 1;
1320 link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]);
1322 if (port_number >= rocker->port_count)
1325 rocker_port = rocker->ports[port_number];
1326 if (netif_carrier_ok(rocker_port->dev) != link_up) {
1328 rocker_port_link_up(rocker_port);
1330 rocker_port_link_down(rocker_port);
1336 #define ROCKER_OP_FLAG_REMOVE BIT(0)
1337 #define ROCKER_OP_FLAG_NOWAIT BIT(1)
1338 #define ROCKER_OP_FLAG_LEARNED BIT(2)
1339 #define ROCKER_OP_FLAG_REFRESH BIT(3)
1341 static int rocker_port_fdb(struct rocker_port *rocker_port,
1342 const unsigned char *addr,
1343 __be16 vlan_id, int flags);
1345 static int rocker_event_mac_vlan_seen(struct rocker *rocker,
1346 const struct rocker_tlv *info)
1348 struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1];
1349 unsigned int port_number;
1350 struct rocker_port *rocker_port;
1351 unsigned char *addr;
1352 int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_LEARNED;
1355 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info);
1356 if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_LPORT] ||
1357 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] ||
1358 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID])
1361 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_LPORT]) - 1;
1362 addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]);
1363 vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]);
1365 if (port_number >= rocker->port_count)
1368 rocker_port = rocker->ports[port_number];
1370 if (rocker_port->stp_state != BR_STATE_LEARNING &&
1371 rocker_port->stp_state != BR_STATE_FORWARDING)
1374 return rocker_port_fdb(rocker_port, addr, vlan_id, flags);
1377 static int rocker_event_process(struct rocker *rocker,
1378 struct rocker_desc_info *desc_info)
1380 struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1];
1381 struct rocker_tlv *info;
1384 rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info);
1385 if (!attrs[ROCKER_TLV_EVENT_TYPE] ||
1386 !attrs[ROCKER_TLV_EVENT_INFO])
1389 type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]);
1390 info = attrs[ROCKER_TLV_EVENT_INFO];
1393 case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED:
1394 return rocker_event_link_change(rocker, info);
1395 case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN:
1396 return rocker_event_mac_vlan_seen(rocker, info);
1402 static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id)
1404 struct rocker *rocker = dev_id;
1405 struct pci_dev *pdev = rocker->pdev;
1406 struct rocker_desc_info *desc_info;
1410 while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) {
1411 err = rocker_desc_err(desc_info);
1413 dev_err(&pdev->dev, "event desc received with err %d\n",
1416 err = rocker_event_process(rocker, desc_info);
1418 dev_err(&pdev->dev, "event processing failed with err %d\n",
1421 rocker_desc_gen_clear(desc_info);
1422 rocker_desc_head_set(rocker, &rocker->event_ring, desc_info);
1425 rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits);
1430 static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id)
1432 struct rocker_port *rocker_port = dev_id;
1434 napi_schedule(&rocker_port->napi_tx);
1438 static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id)
1440 struct rocker_port *rocker_port = dev_id;
1442 napi_schedule(&rocker_port->napi_rx);
1446 /********************
1448 ********************/
1450 typedef int (*rocker_cmd_cb_t)(struct rocker *rocker,
1451 struct rocker_port *rocker_port,
1452 struct rocker_desc_info *desc_info,
1455 static int rocker_cmd_exec(struct rocker *rocker,
1456 struct rocker_port *rocker_port,
1457 rocker_cmd_cb_t prepare, void *prepare_priv,
1458 rocker_cmd_cb_t process, void *process_priv,
1461 struct rocker_desc_info *desc_info;
1462 struct rocker_wait *wait;
1463 unsigned long flags;
1466 wait = rocker_wait_create(nowait ? GFP_ATOMIC : GFP_KERNEL);
1469 wait->nowait = nowait;
1471 spin_lock_irqsave(&rocker->cmd_ring_lock, flags);
1472 desc_info = rocker_desc_head_get(&rocker->cmd_ring);
1474 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1478 err = prepare(rocker, rocker_port, desc_info, prepare_priv);
1480 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1483 rocker_desc_cookie_ptr_set(desc_info, wait);
1484 rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);
1485 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1490 if (!rocker_wait_event_timeout(wait, HZ / 10))
1493 err = rocker_desc_err(desc_info);
1498 err = process(rocker, rocker_port, desc_info, process_priv);
1500 rocker_desc_gen_clear(desc_info);
1502 rocker_wait_destroy(wait);
1507 rocker_cmd_get_port_settings_prep(struct rocker *rocker,
1508 struct rocker_port *rocker_port,
1509 struct rocker_desc_info *desc_info,
1512 struct rocker_tlv *cmd_info;
1514 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1515 ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS))
1517 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1520 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LPORT,
1521 rocker_port->lport))
1523 rocker_tlv_nest_end(desc_info, cmd_info);
1528 rocker_cmd_get_port_settings_ethtool_proc(struct rocker *rocker,
1529 struct rocker_port *rocker_port,
1530 struct rocker_desc_info *desc_info,
1533 struct ethtool_cmd *ecmd = priv;
1534 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1535 struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1540 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1541 if (!attrs[ROCKER_TLV_CMD_INFO])
1544 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1545 attrs[ROCKER_TLV_CMD_INFO]);
1546 if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] ||
1547 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] ||
1548 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG])
1551 speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]);
1552 duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]);
1553 autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]);
1555 ecmd->transceiver = XCVR_INTERNAL;
1556 ecmd->supported = SUPPORTED_TP;
1557 ecmd->phy_address = 0xff;
1558 ecmd->port = PORT_TP;
1559 ethtool_cmd_speed_set(ecmd, speed);
1560 ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF;
1561 ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
1567 rocker_cmd_get_port_settings_macaddr_proc(struct rocker *rocker,
1568 struct rocker_port *rocker_port,
1569 struct rocker_desc_info *desc_info,
1572 unsigned char *macaddr = priv;
1573 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1574 struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1575 struct rocker_tlv *attr;
1577 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1578 if (!attrs[ROCKER_TLV_CMD_INFO])
1581 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1582 attrs[ROCKER_TLV_CMD_INFO]);
1583 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR];
1587 if (rocker_tlv_len(attr) != ETH_ALEN)
1590 ether_addr_copy(macaddr, rocker_tlv_data(attr));
1595 rocker_cmd_set_port_settings_ethtool_prep(struct rocker *rocker,
1596 struct rocker_port *rocker_port,
1597 struct rocker_desc_info *desc_info,
1600 struct ethtool_cmd *ecmd = priv;
1601 struct rocker_tlv *cmd_info;
1603 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1604 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1606 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1609 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LPORT,
1610 rocker_port->lport))
1612 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED,
1613 ethtool_cmd_speed(ecmd)))
1615 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,
1618 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG,
1621 rocker_tlv_nest_end(desc_info, cmd_info);
1626 rocker_cmd_set_port_settings_macaddr_prep(struct rocker *rocker,
1627 struct rocker_port *rocker_port,
1628 struct rocker_desc_info *desc_info,
1631 unsigned char *macaddr = priv;
1632 struct rocker_tlv *cmd_info;
1634 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1635 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1637 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1640 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LPORT,
1641 rocker_port->lport))
1643 if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR,
1646 rocker_tlv_nest_end(desc_info, cmd_info);
1651 rocker_cmd_set_port_learning_prep(struct rocker *rocker,
1652 struct rocker_port *rocker_port,
1653 struct rocker_desc_info *desc_info,
1656 struct rocker_tlv *cmd_info;
1658 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1659 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1661 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1664 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LPORT,
1665 rocker_port->lport))
1667 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING,
1668 !!(rocker_port->brport_flags & BR_LEARNING)))
1670 rocker_tlv_nest_end(desc_info, cmd_info);
1674 static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
1675 struct ethtool_cmd *ecmd)
1677 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1678 rocker_cmd_get_port_settings_prep, NULL,
1679 rocker_cmd_get_port_settings_ethtool_proc,
1683 static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
1684 unsigned char *macaddr)
1686 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1687 rocker_cmd_get_port_settings_prep, NULL,
1688 rocker_cmd_get_port_settings_macaddr_proc,
1692 static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
1693 struct ethtool_cmd *ecmd)
1695 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1696 rocker_cmd_set_port_settings_ethtool_prep,
1697 ecmd, NULL, NULL, false);
1700 static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
1701 unsigned char *macaddr)
1703 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1704 rocker_cmd_set_port_settings_macaddr_prep,
1705 macaddr, NULL, NULL, false);
1708 static int rocker_port_set_learning(struct rocker_port *rocker_port)
1710 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1711 rocker_cmd_set_port_learning_prep,
1712 NULL, NULL, NULL, false);
1715 static int rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info,
1716 struct rocker_flow_tbl_entry *entry)
1718 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT,
1719 entry->key.ig_port.in_lport))
1721 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT_MASK,
1722 entry->key.ig_port.in_lport_mask))
1724 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1725 entry->key.ig_port.goto_tbl))
1731 static int rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info,
1732 struct rocker_flow_tbl_entry *entry)
1734 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT,
1735 entry->key.vlan.in_lport))
1737 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1738 entry->key.vlan.vlan_id))
1740 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1741 entry->key.vlan.vlan_id_mask))
1743 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1744 entry->key.vlan.goto_tbl))
1746 if (entry->key.vlan.untagged &&
1747 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID,
1748 entry->key.vlan.new_vlan_id))
1754 static int rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info,
1755 struct rocker_flow_tbl_entry *entry)
1757 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT,
1758 entry->key.term_mac.in_lport))
1760 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT_MASK,
1761 entry->key.term_mac.in_lport_mask))
1763 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1764 entry->key.term_mac.eth_type))
1766 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1767 ETH_ALEN, entry->key.term_mac.eth_dst))
1769 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1770 ETH_ALEN, entry->key.term_mac.eth_dst_mask))
1772 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1773 entry->key.term_mac.vlan_id))
1775 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1776 entry->key.term_mac.vlan_id_mask))
1778 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1779 entry->key.term_mac.goto_tbl))
1781 if (entry->key.term_mac.copy_to_cpu &&
1782 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
1783 entry->key.term_mac.copy_to_cpu))
1790 rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info,
1791 struct rocker_flow_tbl_entry *entry)
1793 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1794 entry->key.ucast_routing.eth_type))
1796 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP,
1797 entry->key.ucast_routing.dst4))
1799 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK,
1800 entry->key.ucast_routing.dst4_mask))
1802 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1803 entry->key.ucast_routing.goto_tbl))
1805 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
1806 entry->key.ucast_routing.group_id))
1812 static int rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info,
1813 struct rocker_flow_tbl_entry *entry)
1815 if (entry->key.bridge.has_eth_dst &&
1816 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1817 ETH_ALEN, entry->key.bridge.eth_dst))
1819 if (entry->key.bridge.has_eth_dst_mask &&
1820 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1821 ETH_ALEN, entry->key.bridge.eth_dst_mask))
1823 if (entry->key.bridge.vlan_id &&
1824 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1825 entry->key.bridge.vlan_id))
1827 if (entry->key.bridge.tunnel_id &&
1828 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID,
1829 entry->key.bridge.tunnel_id))
1831 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1832 entry->key.bridge.goto_tbl))
1834 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
1835 entry->key.bridge.group_id))
1837 if (entry->key.bridge.copy_to_cpu &&
1838 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
1839 entry->key.bridge.copy_to_cpu))
1845 static int rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info,
1846 struct rocker_flow_tbl_entry *entry)
1848 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT,
1849 entry->key.acl.in_lport))
1851 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT_MASK,
1852 entry->key.acl.in_lport_mask))
1854 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
1855 ETH_ALEN, entry->key.acl.eth_src))
1857 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK,
1858 ETH_ALEN, entry->key.acl.eth_src_mask))
1860 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1861 ETH_ALEN, entry->key.acl.eth_dst))
1863 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1864 ETH_ALEN, entry->key.acl.eth_dst_mask))
1866 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1867 entry->key.acl.eth_type))
1869 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1870 entry->key.acl.vlan_id))
1872 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1873 entry->key.acl.vlan_id_mask))
1876 switch (ntohs(entry->key.acl.eth_type)) {
1879 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO,
1880 entry->key.acl.ip_proto))
1882 if (rocker_tlv_put_u8(desc_info,
1883 ROCKER_TLV_OF_DPA_IP_PROTO_MASK,
1884 entry->key.acl.ip_proto_mask))
1886 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP,
1887 entry->key.acl.ip_tos & 0x3f))
1889 if (rocker_tlv_put_u8(desc_info,
1890 ROCKER_TLV_OF_DPA_IP_DSCP_MASK,
1891 entry->key.acl.ip_tos_mask & 0x3f))
1893 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN,
1894 (entry->key.acl.ip_tos & 0xc0) >> 6))
1896 if (rocker_tlv_put_u8(desc_info,
1897 ROCKER_TLV_OF_DPA_IP_ECN_MASK,
1898 (entry->key.acl.ip_tos_mask & 0xc0) >> 6))
1903 if (entry->key.acl.group_id != ROCKER_GROUP_NONE &&
1904 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
1905 entry->key.acl.group_id))
1911 static int rocker_cmd_flow_tbl_add(struct rocker *rocker,
1912 struct rocker_port *rocker_port,
1913 struct rocker_desc_info *desc_info,
1916 struct rocker_flow_tbl_entry *entry = priv;
1917 struct rocker_tlv *cmd_info;
1920 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1921 ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD))
1923 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1926 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID,
1929 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY,
1930 entry->key.priority))
1932 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0))
1934 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
1938 switch (entry->key.tbl_id) {
1939 case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT:
1940 err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry);
1942 case ROCKER_OF_DPA_TABLE_ID_VLAN:
1943 err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry);
1945 case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC:
1946 err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry);
1948 case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING:
1949 err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry);
1951 case ROCKER_OF_DPA_TABLE_ID_BRIDGING:
1952 err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry);
1954 case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY:
1955 err = rocker_cmd_flow_tbl_add_acl(desc_info, entry);
1965 rocker_tlv_nest_end(desc_info, cmd_info);
1970 static int rocker_cmd_flow_tbl_del(struct rocker *rocker,
1971 struct rocker_port *rocker_port,
1972 struct rocker_desc_info *desc_info,
1975 const struct rocker_flow_tbl_entry *entry = priv;
1976 struct rocker_tlv *cmd_info;
1978 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1979 ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL))
1981 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1984 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
1987 rocker_tlv_nest_end(desc_info, cmd_info);
1993 rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info,
1994 struct rocker_group_tbl_entry *entry)
1996 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_LPORT,
1997 ROCKER_GROUP_PORT_GET(entry->group_id)))
1999 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN,
2000 entry->l2_interface.pop_vlan))
2007 rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info,
2008 struct rocker_group_tbl_entry *entry)
2010 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2011 entry->l2_rewrite.group_id))
2013 if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) &&
2014 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2015 ETH_ALEN, entry->l2_rewrite.eth_src))
2017 if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) &&
2018 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2019 ETH_ALEN, entry->l2_rewrite.eth_dst))
2021 if (entry->l2_rewrite.vlan_id &&
2022 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2023 entry->l2_rewrite.vlan_id))
2030 rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info,
2031 struct rocker_group_tbl_entry *entry)
2034 struct rocker_tlv *group_ids;
2036 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT,
2037 entry->group_count))
2040 group_ids = rocker_tlv_nest_start(desc_info,
2041 ROCKER_TLV_OF_DPA_GROUP_IDS);
2045 for (i = 0; i < entry->group_count; i++)
2046 /* Note TLV array is 1-based */
2047 if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i]))
2050 rocker_tlv_nest_end(desc_info, group_ids);
2056 rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info,
2057 struct rocker_group_tbl_entry *entry)
2059 if (!is_zero_ether_addr(entry->l3_unicast.eth_src) &&
2060 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2061 ETH_ALEN, entry->l3_unicast.eth_src))
2063 if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) &&
2064 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2065 ETH_ALEN, entry->l3_unicast.eth_dst))
2067 if (entry->l3_unicast.vlan_id &&
2068 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2069 entry->l3_unicast.vlan_id))
2071 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK,
2072 entry->l3_unicast.ttl_check))
2074 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2075 entry->l3_unicast.group_id))
2081 static int rocker_cmd_group_tbl_add(struct rocker *rocker,
2082 struct rocker_port *rocker_port,
2083 struct rocker_desc_info *desc_info,
2086 struct rocker_group_tbl_entry *entry = priv;
2087 struct rocker_tlv *cmd_info;
2090 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2092 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2096 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2100 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2101 case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE:
2102 err = rocker_cmd_group_tbl_add_l2_interface(desc_info, entry);
2104 case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE:
2105 err = rocker_cmd_group_tbl_add_l2_rewrite(desc_info, entry);
2107 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2108 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
2109 err = rocker_cmd_group_tbl_add_group_ids(desc_info, entry);
2111 case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST:
2112 err = rocker_cmd_group_tbl_add_l3_unicast(desc_info, entry);
2122 rocker_tlv_nest_end(desc_info, cmd_info);
2127 static int rocker_cmd_group_tbl_del(struct rocker *rocker,
2128 struct rocker_port *rocker_port,
2129 struct rocker_desc_info *desc_info,
2132 const struct rocker_group_tbl_entry *entry = priv;
2133 struct rocker_tlv *cmd_info;
2135 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2137 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2140 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2143 rocker_tlv_nest_end(desc_info, cmd_info);
2148 /*****************************************
2149 * Flow, group, FDB, internal VLAN tables
2150 *****************************************/
2152 static int rocker_init_tbls(struct rocker *rocker)
2154 hash_init(rocker->flow_tbl);
2155 spin_lock_init(&rocker->flow_tbl_lock);
2157 hash_init(rocker->group_tbl);
2158 spin_lock_init(&rocker->group_tbl_lock);
2160 hash_init(rocker->fdb_tbl);
2161 spin_lock_init(&rocker->fdb_tbl_lock);
2163 hash_init(rocker->internal_vlan_tbl);
2164 spin_lock_init(&rocker->internal_vlan_tbl_lock);
2169 static void rocker_free_tbls(struct rocker *rocker)
2171 unsigned long flags;
2172 struct rocker_flow_tbl_entry *flow_entry;
2173 struct rocker_group_tbl_entry *group_entry;
2174 struct rocker_fdb_tbl_entry *fdb_entry;
2175 struct rocker_internal_vlan_tbl_entry *internal_vlan_entry;
2176 struct hlist_node *tmp;
2179 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2180 hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry)
2181 hash_del(&flow_entry->entry);
2182 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2184 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2185 hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry)
2186 hash_del(&group_entry->entry);
2187 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2189 spin_lock_irqsave(&rocker->fdb_tbl_lock, flags);
2190 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry)
2191 hash_del(&fdb_entry->entry);
2192 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags);
2194 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags);
2195 hash_for_each_safe(rocker->internal_vlan_tbl, bkt,
2196 tmp, internal_vlan_entry, entry)
2197 hash_del(&internal_vlan_entry->entry);
2198 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags);
2201 static struct rocker_flow_tbl_entry *
2202 rocker_flow_tbl_find(struct rocker *rocker, struct rocker_flow_tbl_entry *match)
2204 struct rocker_flow_tbl_entry *found;
2206 hash_for_each_possible(rocker->flow_tbl, found,
2207 entry, match->key_crc32) {
2208 if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
2215 static int rocker_flow_tbl_add(struct rocker_port *rocker_port,
2216 struct rocker_flow_tbl_entry *match,
2219 struct rocker *rocker = rocker_port->rocker;
2220 struct rocker_flow_tbl_entry *found;
2221 unsigned long flags;
2222 bool add_to_hw = false;
2225 match->key_crc32 = crc32(~0, &match->key, sizeof(match->key));
2227 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2229 found = rocker_flow_tbl_find(rocker, match);
2235 found->cookie = rocker->flow_tbl_next_cookie++;
2236 hash_add(rocker->flow_tbl, &found->entry, found->key_crc32);
2242 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2245 err = rocker_cmd_exec(rocker, rocker_port,
2246 rocker_cmd_flow_tbl_add,
2247 found, NULL, NULL, nowait);
2249 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2250 hash_del(&found->entry);
2251 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2259 static int rocker_flow_tbl_del(struct rocker_port *rocker_port,
2260 struct rocker_flow_tbl_entry *match,
2263 struct rocker *rocker = rocker_port->rocker;
2264 struct rocker_flow_tbl_entry *found;
2265 unsigned long flags;
2266 bool del_from_hw = false;
2269 match->key_crc32 = crc32(~0, &match->key, sizeof(match->key));
2271 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2273 found = rocker_flow_tbl_find(rocker, match);
2277 if (found->ref_count == 0) {
2278 hash_del(&found->entry);
2283 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2288 err = rocker_cmd_exec(rocker, rocker_port,
2289 rocker_cmd_flow_tbl_del,
2290 found, NULL, NULL, nowait);
2297 static gfp_t rocker_op_flags_gfp(int flags)
2299 return flags & ROCKER_OP_FLAG_NOWAIT ? GFP_ATOMIC : GFP_KERNEL;
2302 static int rocker_flow_tbl_do(struct rocker_port *rocker_port,
2303 int flags, struct rocker_flow_tbl_entry *entry)
2305 bool nowait = flags & ROCKER_OP_FLAG_NOWAIT;
2307 if (flags & ROCKER_OP_FLAG_REMOVE)
2308 return rocker_flow_tbl_del(rocker_port, entry, nowait);
2310 return rocker_flow_tbl_add(rocker_port, entry, nowait);
2313 static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port,
2314 int flags, u32 in_lport, u32 in_lport_mask,
2315 enum rocker_of_dpa_table_id goto_tbl)
2317 struct rocker_flow_tbl_entry *entry;
2319 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2323 entry->key.priority = ROCKER_PRIORITY_IG_PORT;
2324 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT;
2325 entry->key.ig_port.in_lport = in_lport;
2326 entry->key.ig_port.in_lport_mask = in_lport_mask;
2327 entry->key.ig_port.goto_tbl = goto_tbl;
2329 return rocker_flow_tbl_do(rocker_port, flags, entry);
2332 static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port,
2333 int flags, u32 in_lport,
2334 __be16 vlan_id, __be16 vlan_id_mask,
2335 enum rocker_of_dpa_table_id goto_tbl,
2336 bool untagged, __be16 new_vlan_id)
2338 struct rocker_flow_tbl_entry *entry;
2340 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2344 entry->key.priority = ROCKER_PRIORITY_VLAN;
2345 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN;
2346 entry->key.vlan.in_lport = in_lport;
2347 entry->key.vlan.vlan_id = vlan_id;
2348 entry->key.vlan.vlan_id_mask = vlan_id_mask;
2349 entry->key.vlan.goto_tbl = goto_tbl;
2351 entry->key.vlan.untagged = untagged;
2352 entry->key.vlan.new_vlan_id = new_vlan_id;
2354 return rocker_flow_tbl_do(rocker_port, flags, entry);
2357 static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port,
2358 u32 in_lport, u32 in_lport_mask,
2359 __be16 eth_type, const u8 *eth_dst,
2360 const u8 *eth_dst_mask, __be16 vlan_id,
2361 __be16 vlan_id_mask, bool copy_to_cpu,
2364 struct rocker_flow_tbl_entry *entry;
2366 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2370 if (is_multicast_ether_addr(eth_dst)) {
2371 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST;
2372 entry->key.term_mac.goto_tbl =
2373 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING;
2375 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST;
2376 entry->key.term_mac.goto_tbl =
2377 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2380 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
2381 entry->key.term_mac.in_lport = in_lport;
2382 entry->key.term_mac.in_lport_mask = in_lport_mask;
2383 entry->key.term_mac.eth_type = eth_type;
2384 ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst);
2385 ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask);
2386 entry->key.term_mac.vlan_id = vlan_id;
2387 entry->key.term_mac.vlan_id_mask = vlan_id_mask;
2388 entry->key.term_mac.copy_to_cpu = copy_to_cpu;
2390 return rocker_flow_tbl_do(rocker_port, flags, entry);
2393 static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port,
2395 const u8 *eth_dst, const u8 *eth_dst_mask,
2396 __be16 vlan_id, u32 tunnel_id,
2397 enum rocker_of_dpa_table_id goto_tbl,
2398 u32 group_id, bool copy_to_cpu)
2400 struct rocker_flow_tbl_entry *entry;
2402 bool vlan_bridging = !!vlan_id;
2403 bool dflt = !eth_dst || (eth_dst && eth_dst_mask);
2406 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2410 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING;
2413 entry->key.bridge.has_eth_dst = 1;
2414 ether_addr_copy(entry->key.bridge.eth_dst, eth_dst);
2417 entry->key.bridge.has_eth_dst_mask = 1;
2418 ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask);
2419 if (memcmp(eth_dst_mask, ff_mac, ETH_ALEN))
2423 priority = ROCKER_PRIORITY_UNKNOWN;
2424 if (vlan_bridging && dflt && wild)
2425 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD;
2426 else if (vlan_bridging && dflt && !wild)
2427 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT;
2428 else if (vlan_bridging && !dflt)
2429 priority = ROCKER_PRIORITY_BRIDGING_VLAN;
2430 else if (!vlan_bridging && dflt && wild)
2431 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD;
2432 else if (!vlan_bridging && dflt && !wild)
2433 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT;
2434 else if (!vlan_bridging && !dflt)
2435 priority = ROCKER_PRIORITY_BRIDGING_TENANT;
2437 entry->key.priority = priority;
2438 entry->key.bridge.vlan_id = vlan_id;
2439 entry->key.bridge.tunnel_id = tunnel_id;
2440 entry->key.bridge.goto_tbl = goto_tbl;
2441 entry->key.bridge.group_id = group_id;
2442 entry->key.bridge.copy_to_cpu = copy_to_cpu;
2444 return rocker_flow_tbl_do(rocker_port, flags, entry);
2447 static int rocker_flow_tbl_acl(struct rocker_port *rocker_port,
2448 int flags, u32 in_lport,
2450 const u8 *eth_src, const u8 *eth_src_mask,
2451 const u8 *eth_dst, const u8 *eth_dst_mask,
2453 __be16 vlan_id, __be16 vlan_id_mask,
2454 u8 ip_proto, u8 ip_proto_mask,
2455 u8 ip_tos, u8 ip_tos_mask,
2459 struct rocker_flow_tbl_entry *entry;
2461 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2465 priority = ROCKER_PRIORITY_ACL_NORMAL;
2466 if (eth_dst && eth_dst_mask) {
2467 if (memcmp(eth_dst_mask, mcast_mac, ETH_ALEN) == 0)
2468 priority = ROCKER_PRIORITY_ACL_DFLT;
2469 else if (is_link_local_ether_addr(eth_dst))
2470 priority = ROCKER_PRIORITY_ACL_CTRL;
2473 entry->key.priority = priority;
2474 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2475 entry->key.acl.in_lport = in_lport;
2476 entry->key.acl.in_lport_mask = in_lport_mask;
2479 ether_addr_copy(entry->key.acl.eth_src, eth_src);
2481 ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask);
2483 ether_addr_copy(entry->key.acl.eth_dst, eth_dst);
2485 ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask);
2487 entry->key.acl.eth_type = eth_type;
2488 entry->key.acl.vlan_id = vlan_id;
2489 entry->key.acl.vlan_id_mask = vlan_id_mask;
2490 entry->key.acl.ip_proto = ip_proto;
2491 entry->key.acl.ip_proto_mask = ip_proto_mask;
2492 entry->key.acl.ip_tos = ip_tos;
2493 entry->key.acl.ip_tos_mask = ip_tos_mask;
2494 entry->key.acl.group_id = group_id;
2496 return rocker_flow_tbl_do(rocker_port, flags, entry);
2499 static struct rocker_group_tbl_entry *
2500 rocker_group_tbl_find(struct rocker *rocker,
2501 struct rocker_group_tbl_entry *match)
2503 struct rocker_group_tbl_entry *found;
2505 hash_for_each_possible(rocker->group_tbl, found,
2506 entry, match->group_id) {
2507 if (found->group_id == match->group_id)
2514 static void rocker_group_tbl_entry_free(struct rocker_group_tbl_entry *entry)
2516 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2517 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2518 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
2519 kfree(entry->group_ids);
2527 static int rocker_group_tbl_add(struct rocker_port *rocker_port,
2528 struct rocker_group_tbl_entry *match,
2531 struct rocker *rocker = rocker_port->rocker;
2532 struct rocker_group_tbl_entry *found;
2533 unsigned long flags;
2536 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2538 found = rocker_group_tbl_find(rocker, match);
2541 hash_del(&found->entry);
2542 rocker_group_tbl_entry_free(found);
2544 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD;
2547 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD;
2550 hash_add(rocker->group_tbl, &found->entry, found->group_id);
2552 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2555 err = rocker_cmd_exec(rocker, rocker_port,
2556 rocker_cmd_group_tbl_add,
2557 found, NULL, NULL, nowait);
2562 static int rocker_group_tbl_del(struct rocker_port *rocker_port,
2563 struct rocker_group_tbl_entry *match,
2566 struct rocker *rocker = rocker_port->rocker;
2567 struct rocker_group_tbl_entry *found;
2568 unsigned long flags;
2571 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2573 found = rocker_group_tbl_find(rocker, match);
2576 hash_del(&found->entry);
2577 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL;
2580 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2582 rocker_group_tbl_entry_free(match);
2585 err = rocker_cmd_exec(rocker, rocker_port,
2586 rocker_cmd_group_tbl_del,
2587 found, NULL, NULL, nowait);
2588 rocker_group_tbl_entry_free(found);
2594 static int rocker_group_tbl_do(struct rocker_port *rocker_port,
2595 int flags, struct rocker_group_tbl_entry *entry)
2597 bool nowait = flags & ROCKER_OP_FLAG_NOWAIT;
2599 if (flags & ROCKER_OP_FLAG_REMOVE)
2600 return rocker_group_tbl_del(rocker_port, entry, nowait);
2602 return rocker_group_tbl_add(rocker_port, entry, nowait);
2605 static int rocker_group_l2_interface(struct rocker_port *rocker_port,
2606 int flags, __be16 vlan_id,
2607 u32 out_lport, int pop_vlan)
2609 struct rocker_group_tbl_entry *entry;
2611 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2615 entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_lport);
2616 entry->l2_interface.pop_vlan = pop_vlan;
2618 return rocker_group_tbl_do(rocker_port, flags, entry);
2621 static int rocker_group_l2_fan_out(struct rocker_port *rocker_port,
2622 int flags, u8 group_count,
2623 u32 *group_ids, u32 group_id)
2625 struct rocker_group_tbl_entry *entry;
2627 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2631 entry->group_id = group_id;
2632 entry->group_count = group_count;
2634 entry->group_ids = kcalloc(group_count, sizeof(u32),
2635 rocker_op_flags_gfp(flags));
2636 if (!entry->group_ids) {
2640 memcpy(entry->group_ids, group_ids, group_count * sizeof(u32));
2642 return rocker_group_tbl_do(rocker_port, flags, entry);
2645 static int rocker_group_l2_flood(struct rocker_port *rocker_port,
2646 int flags, __be16 vlan_id,
2647 u8 group_count, u32 *group_ids,
2650 return rocker_group_l2_fan_out(rocker_port, flags,
2651 group_count, group_ids,
2655 static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port,
2656 int flags, __be16 vlan_id)
2658 struct rocker_port *p;
2659 struct rocker *rocker = rocker_port->rocker;
2660 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
2661 u32 group_ids[rocker->port_count];
2666 /* Adjust the flood group for this VLAN. The flood group
2667 * references an L2 interface group for each port in this
2671 for (i = 0; i < rocker->port_count; i++) {
2672 p = rocker->ports[i];
2673 if (!rocker_port_is_bridged(p))
2675 if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) {
2676 group_ids[group_count++] =
2677 ROCKER_GROUP_L2_INTERFACE(vlan_id,
2682 /* If there are no bridged ports in this VLAN, we're done */
2683 if (group_count == 0)
2686 err = rocker_group_l2_flood(rocker_port, flags, vlan_id,
2687 group_count, group_ids,
2690 netdev_err(rocker_port->dev,
2691 "Error (%d) port VLAN l2 flood group\n", err);
2696 static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port,
2697 int flags, __be16 vlan_id,
2700 struct rocker *rocker = rocker_port->rocker;
2701 struct rocker_port *p;
2702 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
2708 /* An L2 interface group for this port in this VLAN, but
2709 * only when port STP state is LEARNING|FORWARDING.
2712 if (rocker_port->stp_state == BR_STATE_LEARNING ||
2713 rocker_port->stp_state == BR_STATE_FORWARDING) {
2714 out_lport = rocker_port->lport;
2715 err = rocker_group_l2_interface(rocker_port, flags,
2719 netdev_err(rocker_port->dev,
2720 "Error (%d) port VLAN l2 group for lport %d\n",
2726 /* An L2 interface group for this VLAN to CPU port.
2727 * Add when first port joins this VLAN and destroy when
2728 * last port leaves this VLAN.
2731 for (i = 0; i < rocker->port_count; i++) {
2732 p = rocker->ports[i];
2733 if (test_bit(ntohs(vlan_id), p->vlan_bitmap))
2737 if ((!adding || ref != 1) && (adding || ref != 0))
2741 err = rocker_group_l2_interface(rocker_port, flags,
2745 netdev_err(rocker_port->dev,
2746 "Error (%d) port VLAN l2 group for CPU port\n", err);
2753 static struct rocker_ctrl {
2755 const u8 *eth_dst_mask;
2761 } rocker_ctrls[] = {
2762 [ROCKER_CTRL_LINK_LOCAL_MCAST] = {
2763 /* pass link local multicast pkts up to CPU for filtering */
2765 .eth_dst_mask = ll_mask,
2768 [ROCKER_CTRL_LOCAL_ARP] = {
2769 /* pass local ARP pkts up to CPU */
2770 .eth_dst = zero_mac,
2771 .eth_dst_mask = zero_mac,
2772 .eth_type = htons(ETH_P_ARP),
2775 [ROCKER_CTRL_IPV4_MCAST] = {
2776 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
2777 .eth_dst = ipv4_mcast,
2778 .eth_dst_mask = ipv4_mask,
2779 .eth_type = htons(ETH_P_IP),
2781 .copy_to_cpu = true,
2783 [ROCKER_CTRL_IPV6_MCAST] = {
2784 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
2785 .eth_dst = ipv6_mcast,
2786 .eth_dst_mask = ipv6_mask,
2787 .eth_type = htons(ETH_P_IPV6),
2789 .copy_to_cpu = true,
2791 [ROCKER_CTRL_DFLT_BRIDGING] = {
2792 /* flood any pkts on vlan */
2794 .copy_to_cpu = true,
2798 static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port,
2799 int flags, struct rocker_ctrl *ctrl,
2802 u32 in_lport = rocker_port->lport;
2803 u32 in_lport_mask = 0xffffffff;
2806 u8 *eth_src_mask = NULL;
2807 __be16 vlan_id_mask = htons(0xffff);
2809 u8 ip_proto_mask = 0;
2812 u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_lport);
2815 err = rocker_flow_tbl_acl(rocker_port, flags,
2816 in_lport, in_lport_mask,
2817 eth_src, eth_src_mask,
2818 ctrl->eth_dst, ctrl->eth_dst_mask,
2820 vlan_id, vlan_id_mask,
2821 ip_proto, ip_proto_mask,
2822 ip_tos, ip_tos_mask,
2826 netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err);
2831 static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port,
2832 int flags, struct rocker_ctrl *ctrl,
2835 enum rocker_of_dpa_table_id goto_tbl =
2836 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2837 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
2841 if (!rocker_port_is_bridged(rocker_port))
2844 err = rocker_flow_tbl_bridge(rocker_port, flags,
2845 ctrl->eth_dst, ctrl->eth_dst_mask,
2847 goto_tbl, group_id, ctrl->copy_to_cpu);
2850 netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err);
2855 static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port,
2856 int flags, struct rocker_ctrl *ctrl,
2859 u32 in_lport_mask = 0xffffffff;
2860 __be16 vlan_id_mask = htons(0xffff);
2863 if (ntohs(vlan_id) == 0)
2864 vlan_id = rocker_port->internal_vlan_id;
2866 err = rocker_flow_tbl_term_mac(rocker_port,
2867 rocker_port->lport, in_lport_mask,
2868 ctrl->eth_type, ctrl->eth_dst,
2869 ctrl->eth_dst_mask, vlan_id,
2870 vlan_id_mask, ctrl->copy_to_cpu,
2874 netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err);
2879 static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port, int flags,
2880 struct rocker_ctrl *ctrl, __be16 vlan_id)
2883 return rocker_port_ctrl_vlan_acl(rocker_port, flags,
2886 return rocker_port_ctrl_vlan_bridge(rocker_port, flags,
2890 return rocker_port_ctrl_vlan_term(rocker_port, flags,
2896 static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port,
2897 int flags, __be16 vlan_id)
2902 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
2903 if (rocker_port->ctrls[i]) {
2904 err = rocker_port_ctrl_vlan(rocker_port, flags,
2905 &rocker_ctrls[i], vlan_id);
2914 static int rocker_port_ctrl(struct rocker_port *rocker_port, int flags,
2915 struct rocker_ctrl *ctrl)
2920 for (vid = 1; vid < VLAN_N_VID; vid++) {
2921 if (!test_bit(vid, rocker_port->vlan_bitmap))
2923 err = rocker_port_ctrl_vlan(rocker_port, flags,
2932 static int rocker_port_vlan(struct rocker_port *rocker_port, int flags,
2935 enum rocker_of_dpa_table_id goto_tbl =
2936 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
2937 u32 in_lport = rocker_port->lport;
2938 __be16 vlan_id = htons(vid);
2939 __be16 vlan_id_mask = htons(0xffff);
2940 __be16 internal_vlan_id;
2942 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
2945 internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged);
2947 if (adding && test_and_set_bit(ntohs(internal_vlan_id),
2948 rocker_port->vlan_bitmap))
2949 return 0; /* already added */
2950 else if (!adding && !test_and_clear_bit(ntohs(internal_vlan_id),
2951 rocker_port->vlan_bitmap))
2952 return 0; /* already removed */
2955 err = rocker_port_ctrl_vlan_add(rocker_port, flags,
2958 netdev_err(rocker_port->dev,
2959 "Error (%d) port ctrl vlan add\n", err);
2964 err = rocker_port_vlan_l2_groups(rocker_port, flags,
2965 internal_vlan_id, untagged);
2967 netdev_err(rocker_port->dev,
2968 "Error (%d) port VLAN l2 groups\n", err);
2972 err = rocker_port_vlan_flood_group(rocker_port, flags,
2975 netdev_err(rocker_port->dev,
2976 "Error (%d) port VLAN l2 flood group\n", err);
2980 err = rocker_flow_tbl_vlan(rocker_port, flags,
2981 in_lport, vlan_id, vlan_id_mask,
2982 goto_tbl, untagged, internal_vlan_id);
2984 netdev_err(rocker_port->dev,
2985 "Error (%d) port VLAN table\n", err);
2990 static int rocker_port_ig_tbl(struct rocker_port *rocker_port, int flags)
2992 enum rocker_of_dpa_table_id goto_tbl;
2997 /* Normal Ethernet Frames. Matches pkts from any local physical
2998 * ports. Goto VLAN tbl.
3002 in_lport_mask = 0xffff0000;
3003 goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
3005 err = rocker_flow_tbl_ig_port(rocker_port, flags,
3006 in_lport, in_lport_mask,
3009 netdev_err(rocker_port->dev,
3010 "Error (%d) ingress port table entry\n", err);
3015 struct rocker_fdb_learn_work {
3016 struct work_struct work;
3017 struct net_device *dev;
3023 static void rocker_port_fdb_learn_work(struct work_struct *work)
3025 struct rocker_fdb_learn_work *lw =
3026 container_of(work, struct rocker_fdb_learn_work, work);
3027 bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE);
3028 bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED);
3029 struct netdev_switch_notifier_fdb_info info;
3031 info.addr = lw->addr;
3034 if (learned && removing)
3035 call_netdev_switch_notifiers(NETDEV_SWITCH_FDB_DEL,
3036 lw->dev, &info.info);
3037 else if (learned && !removing)
3038 call_netdev_switch_notifiers(NETDEV_SWITCH_FDB_ADD,
3039 lw->dev, &info.info);
3044 static int rocker_port_fdb_learn(struct rocker_port *rocker_port,
3045 int flags, const u8 *addr, __be16 vlan_id)
3047 struct rocker_fdb_learn_work *lw;
3048 enum rocker_of_dpa_table_id goto_tbl =
3049 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3050 u32 out_lport = rocker_port->lport;
3052 u32 group_id = ROCKER_GROUP_NONE;
3053 bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC);
3054 bool copy_to_cpu = false;
3057 if (rocker_port_is_bridged(rocker_port))
3058 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_lport);
3060 if (!(flags & ROCKER_OP_FLAG_REFRESH)) {
3061 err = rocker_flow_tbl_bridge(rocker_port, flags, addr, NULL,
3062 vlan_id, tunnel_id, goto_tbl,
3063 group_id, copy_to_cpu);
3071 if (!rocker_port_is_bridged(rocker_port))
3074 lw = kmalloc(sizeof(*lw), rocker_op_flags_gfp(flags));
3078 INIT_WORK(&lw->work, rocker_port_fdb_learn_work);
3080 lw->dev = rocker_port->dev;
3082 ether_addr_copy(lw->addr, addr);
3083 lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id);
3085 schedule_work(&lw->work);
3090 static struct rocker_fdb_tbl_entry *
3091 rocker_fdb_tbl_find(struct rocker *rocker, struct rocker_fdb_tbl_entry *match)
3093 struct rocker_fdb_tbl_entry *found;
3095 hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32)
3096 if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
3102 static int rocker_port_fdb(struct rocker_port *rocker_port,
3103 const unsigned char *addr,
3104 __be16 vlan_id, int flags)
3106 struct rocker *rocker = rocker_port->rocker;
3107 struct rocker_fdb_tbl_entry *fdb;
3108 struct rocker_fdb_tbl_entry *found;
3109 bool removing = (flags & ROCKER_OP_FLAG_REMOVE);
3110 unsigned long lock_flags;
3112 fdb = kzalloc(sizeof(*fdb), rocker_op_flags_gfp(flags));
3116 fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED);
3117 fdb->key.lport = rocker_port->lport;
3118 ether_addr_copy(fdb->key.addr, addr);
3119 fdb->key.vlan_id = vlan_id;
3120 fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key));
3122 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3124 found = rocker_fdb_tbl_find(rocker, fdb);
3126 if (removing && found) {
3128 hash_del(&found->entry);
3129 } else if (!removing && !found) {
3130 hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32);
3133 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3135 /* Check if adding and already exists, or removing and can't find */
3136 if (!found != !removing) {
3138 if (!found && removing)
3140 /* Refreshing existing to update aging timers */
3141 flags |= ROCKER_OP_FLAG_REFRESH;
3144 return rocker_port_fdb_learn(rocker_port, flags, addr, vlan_id);
3147 static int rocker_port_fdb_flush(struct rocker_port *rocker_port)
3149 struct rocker *rocker = rocker_port->rocker;
3150 struct rocker_fdb_tbl_entry *found;
3151 unsigned long lock_flags;
3152 int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_REMOVE;
3153 struct hlist_node *tmp;
3157 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3158 rocker_port->stp_state == BR_STATE_FORWARDING)
3161 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3163 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
3164 if (found->key.lport != rocker_port->lport)
3166 if (!found->learned)
3168 err = rocker_port_fdb_learn(rocker_port, flags,
3170 found->key.vlan_id);
3173 hash_del(&found->entry);
3177 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3182 static int rocker_port_router_mac(struct rocker_port *rocker_port,
3183 int flags, __be16 vlan_id)
3185 u32 in_lport_mask = 0xffffffff;
3187 const u8 *dst_mac_mask = ff_mac;
3188 __be16 vlan_id_mask = htons(0xffff);
3189 bool copy_to_cpu = false;
3192 if (ntohs(vlan_id) == 0)
3193 vlan_id = rocker_port->internal_vlan_id;
3195 eth_type = htons(ETH_P_IP);
3196 err = rocker_flow_tbl_term_mac(rocker_port,
3197 rocker_port->lport, in_lport_mask,
3198 eth_type, rocker_port->dev->dev_addr,
3199 dst_mac_mask, vlan_id, vlan_id_mask,
3200 copy_to_cpu, flags);
3204 eth_type = htons(ETH_P_IPV6);
3205 err = rocker_flow_tbl_term_mac(rocker_port,
3206 rocker_port->lport, in_lport_mask,
3207 eth_type, rocker_port->dev->dev_addr,
3208 dst_mac_mask, vlan_id, vlan_id_mask,
3209 copy_to_cpu, flags);
3214 static int rocker_port_fwding(struct rocker_port *rocker_port)
3220 int flags = ROCKER_OP_FLAG_NOWAIT;
3223 /* Port will be forwarding-enabled if its STP state is LEARNING
3224 * or FORWARDING. Traffic from CPU can still egress, regardless of
3225 * port STP state. Use L2 interface group on port VLANs as a way
3226 * to toggle port forwarding: if forwarding is disabled, L2
3227 * interface group will not exist.
3230 if (rocker_port->stp_state != BR_STATE_LEARNING &&
3231 rocker_port->stp_state != BR_STATE_FORWARDING)
3232 flags |= ROCKER_OP_FLAG_REMOVE;
3234 out_lport = rocker_port->lport;
3235 for (vid = 1; vid < VLAN_N_VID; vid++) {
3236 if (!test_bit(vid, rocker_port->vlan_bitmap))
3238 vlan_id = htons(vid);
3239 pop_vlan = rocker_vlan_id_is_internal(vlan_id);
3240 err = rocker_group_l2_interface(rocker_port, flags,
3244 netdev_err(rocker_port->dev,
3245 "Error (%d) port VLAN l2 group for lport %d\n",
3254 static int rocker_port_stp_update(struct rocker_port *rocker_port, u8 state)
3256 bool want[ROCKER_CTRL_MAX] = { 0, };
3261 if (rocker_port->stp_state == state)
3264 rocker_port->stp_state = state;
3267 case BR_STATE_DISABLED:
3268 /* port is completely disabled */
3270 case BR_STATE_LISTENING:
3271 case BR_STATE_BLOCKING:
3272 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3274 case BR_STATE_LEARNING:
3275 case BR_STATE_FORWARDING:
3276 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3277 want[ROCKER_CTRL_IPV4_MCAST] = true;
3278 want[ROCKER_CTRL_IPV6_MCAST] = true;
3279 if (rocker_port_is_bridged(rocker_port))
3280 want[ROCKER_CTRL_DFLT_BRIDGING] = true;
3282 want[ROCKER_CTRL_LOCAL_ARP] = true;
3286 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3287 if (want[i] != rocker_port->ctrls[i]) {
3288 flags = ROCKER_OP_FLAG_NOWAIT |
3289 (want[i] ? 0 : ROCKER_OP_FLAG_REMOVE);
3290 err = rocker_port_ctrl(rocker_port, flags,
3294 rocker_port->ctrls[i] = want[i];
3298 err = rocker_port_fdb_flush(rocker_port);
3302 return rocker_port_fwding(rocker_port);
3305 static struct rocker_internal_vlan_tbl_entry *
3306 rocker_internal_vlan_tbl_find(struct rocker *rocker, int ifindex)
3308 struct rocker_internal_vlan_tbl_entry *found;
3310 hash_for_each_possible(rocker->internal_vlan_tbl, found,
3312 if (found->ifindex == ifindex)
3319 static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port,
3322 struct rocker *rocker = rocker_port->rocker;
3323 struct rocker_internal_vlan_tbl_entry *entry;
3324 struct rocker_internal_vlan_tbl_entry *found;
3325 unsigned long lock_flags;
3328 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3332 entry->ifindex = ifindex;
3334 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3336 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3343 hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex);
3345 for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) {
3346 if (test_and_set_bit(i, rocker->internal_vlan_bitmap))
3348 found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i);
3352 netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n");
3356 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3358 return found->vlan_id;
3361 static void rocker_port_internal_vlan_id_put(struct rocker_port *rocker_port,
3364 struct rocker *rocker = rocker_port->rocker;
3365 struct rocker_internal_vlan_tbl_entry *found;
3366 unsigned long lock_flags;
3369 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3371 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3373 netdev_err(rocker_port->dev,
3374 "ifindex (%d) not found in internal VLAN tbl\n",
3379 if (--found->ref_count <= 0) {
3380 bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE;
3381 clear_bit(bit, rocker->internal_vlan_bitmap);
3382 hash_del(&found->entry);
3387 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3394 static int rocker_port_open(struct net_device *dev)
3396 struct rocker_port *rocker_port = netdev_priv(dev);
3397 u8 stp_state = rocker_port_is_bridged(rocker_port) ?
3398 BR_STATE_BLOCKING : BR_STATE_FORWARDING;
3401 err = rocker_port_dma_rings_init(rocker_port);
3405 err = request_irq(rocker_msix_tx_vector(rocker_port),
3406 rocker_tx_irq_handler, 0,
3407 rocker_driver_name, rocker_port);
3409 netdev_err(rocker_port->dev, "cannot assign tx irq\n");
3410 goto err_request_tx_irq;
3413 err = request_irq(rocker_msix_rx_vector(rocker_port),
3414 rocker_rx_irq_handler, 0,
3415 rocker_driver_name, rocker_port);
3417 netdev_err(rocker_port->dev, "cannot assign rx irq\n");
3418 goto err_request_rx_irq;
3421 err = rocker_port_stp_update(rocker_port, stp_state);
3423 goto err_stp_update;
3425 napi_enable(&rocker_port->napi_tx);
3426 napi_enable(&rocker_port->napi_rx);
3427 rocker_port_set_enable(rocker_port, true);
3428 netif_start_queue(dev);
3432 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
3434 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
3436 rocker_port_dma_rings_fini(rocker_port);
3440 static int rocker_port_stop(struct net_device *dev)
3442 struct rocker_port *rocker_port = netdev_priv(dev);
3444 netif_stop_queue(dev);
3445 rocker_port_set_enable(rocker_port, false);
3446 napi_disable(&rocker_port->napi_rx);
3447 napi_disable(&rocker_port->napi_tx);
3448 rocker_port_stp_update(rocker_port, BR_STATE_DISABLED);
3449 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
3450 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
3451 rocker_port_dma_rings_fini(rocker_port);
3456 static void rocker_tx_desc_frags_unmap(struct rocker_port *rocker_port,
3457 struct rocker_desc_info *desc_info)
3459 struct rocker *rocker = rocker_port->rocker;
3460 struct pci_dev *pdev = rocker->pdev;
3461 struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1];
3462 struct rocker_tlv *attr;
3465 rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info);
3466 if (!attrs[ROCKER_TLV_TX_FRAGS])
3468 rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) {
3469 struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1];
3470 dma_addr_t dma_handle;
3473 if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG)
3475 rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX,
3477 if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] ||
3478 !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN])
3480 dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]);
3481 len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]);
3482 pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE);
3486 static int rocker_tx_desc_frag_map_put(struct rocker_port *rocker_port,
3487 struct rocker_desc_info *desc_info,
3488 char *buf, size_t buf_len)
3490 struct rocker *rocker = rocker_port->rocker;
3491 struct pci_dev *pdev = rocker->pdev;
3492 dma_addr_t dma_handle;
3493 struct rocker_tlv *frag;
3495 dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE);
3496 if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) {
3497 if (net_ratelimit())
3498 netdev_err(rocker_port->dev, "failed to dma map tx frag\n");
3501 frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG);
3504 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR,
3507 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN,
3510 rocker_tlv_nest_end(desc_info, frag);
3514 rocker_tlv_nest_cancel(desc_info, frag);
3516 pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE);
3520 static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev)
3522 struct rocker_port *rocker_port = netdev_priv(dev);
3523 struct rocker *rocker = rocker_port->rocker;
3524 struct rocker_desc_info *desc_info;
3525 struct rocker_tlv *frags;
3529 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
3530 if (unlikely(!desc_info)) {
3531 if (net_ratelimit())
3532 netdev_err(dev, "tx ring full when queue awake\n");
3533 return NETDEV_TX_BUSY;
3536 rocker_desc_cookie_ptr_set(desc_info, skb);
3538 frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS);
3541 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
3542 skb->data, skb_headlen(skb));
3545 if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX)
3548 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
3549 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
3551 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
3552 skb_frag_address(frag),
3553 skb_frag_size(frag));
3557 rocker_tlv_nest_end(desc_info, frags);
3559 rocker_desc_gen_clear(desc_info);
3560 rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info);
3562 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
3564 netif_stop_queue(dev);
3566 return NETDEV_TX_OK;
3569 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
3571 rocker_tlv_nest_cancel(desc_info, frags);
3574 dev->stats.tx_dropped++;
3576 return NETDEV_TX_OK;
3579 static int rocker_port_set_mac_address(struct net_device *dev, void *p)
3581 struct sockaddr *addr = p;
3582 struct rocker_port *rocker_port = netdev_priv(dev);
3585 if (!is_valid_ether_addr(addr->sa_data))
3586 return -EADDRNOTAVAIL;
3588 err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data);
3591 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
3595 static int rocker_port_vlan_rx_add_vid(struct net_device *dev,
3596 __be16 proto, u16 vid)
3598 struct rocker_port *rocker_port = netdev_priv(dev);
3601 err = rocker_port_vlan(rocker_port, 0, vid);
3605 return rocker_port_router_mac(rocker_port, 0, htons(vid));
3608 static int rocker_port_vlan_rx_kill_vid(struct net_device *dev,
3609 __be16 proto, u16 vid)
3611 struct rocker_port *rocker_port = netdev_priv(dev);
3614 err = rocker_port_router_mac(rocker_port, ROCKER_OP_FLAG_REMOVE,
3619 return rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, vid);
3622 static int rocker_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
3623 struct net_device *dev,
3624 const unsigned char *addr, u16 vid,
3627 struct rocker_port *rocker_port = netdev_priv(dev);
3628 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
3631 if (!rocker_port_is_bridged(rocker_port))
3634 return rocker_port_fdb(rocker_port, addr, vlan_id, flags);
3637 static int rocker_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
3638 struct net_device *dev,
3639 const unsigned char *addr, u16 vid)
3641 struct rocker_port *rocker_port = netdev_priv(dev);
3642 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
3643 int flags = ROCKER_OP_FLAG_REMOVE;
3645 if (!rocker_port_is_bridged(rocker_port))
3648 return rocker_port_fdb(rocker_port, addr, vlan_id, flags);
3651 static int rocker_fdb_fill_info(struct sk_buff *skb,
3652 struct rocker_port *rocker_port,
3653 const unsigned char *addr, u16 vid,
3654 u32 portid, u32 seq, int type,
3657 struct nlmsghdr *nlh;
3660 nlh = nlmsg_put(skb, portid, seq, type, sizeof(*ndm), flags);
3664 ndm = nlmsg_data(nlh);
3665 ndm->ndm_family = AF_BRIDGE;
3668 ndm->ndm_flags = NTF_SELF;
3670 ndm->ndm_ifindex = rocker_port->dev->ifindex;
3671 ndm->ndm_state = NUD_REACHABLE;
3673 if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr))
3674 goto nla_put_failure;
3676 if (vid && nla_put_u16(skb, NDA_VLAN, vid))
3677 goto nla_put_failure;
3679 nlmsg_end(skb, nlh);
3683 nlmsg_cancel(skb, nlh);
3687 static int rocker_port_fdb_dump(struct sk_buff *skb,
3688 struct netlink_callback *cb,
3689 struct net_device *dev,
3690 struct net_device *filter_dev,
3693 struct rocker_port *rocker_port = netdev_priv(dev);
3694 struct rocker *rocker = rocker_port->rocker;
3695 struct rocker_fdb_tbl_entry *found;
3696 struct hlist_node *tmp;
3698 unsigned long lock_flags;
3699 const unsigned char *addr;
3703 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3704 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
3705 if (found->key.lport != rocker_port->lport)
3707 if (idx < cb->args[0])
3709 addr = found->key.addr;
3710 vid = rocker_port_vlan_to_vid(rocker_port, found->key.vlan_id);
3711 err = rocker_fdb_fill_info(skb, rocker_port, addr, vid,
3712 NETLINK_CB(cb->skb).portid,
3714 RTM_NEWNEIGH, NLM_F_MULTI);
3720 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3724 static int rocker_port_bridge_setlink(struct net_device *dev,
3725 struct nlmsghdr *nlh, u16 flags)
3727 struct rocker_port *rocker_port = netdev_priv(dev);
3728 struct nlattr *protinfo;
3729 struct nlattr *attr;
3732 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg),
3735 attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING);
3737 if (nla_len(attr) < sizeof(u8))
3740 if (nla_get_u8(attr))
3741 rocker_port->brport_flags |= BR_LEARNING;
3743 rocker_port->brport_flags &= ~BR_LEARNING;
3744 err = rocker_port_set_learning(rocker_port);
3748 attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING_SYNC);
3750 if (nla_len(attr) < sizeof(u8))
3753 if (nla_get_u8(attr))
3754 rocker_port->brport_flags |= BR_LEARNING_SYNC;
3756 rocker_port->brport_flags &= ~BR_LEARNING_SYNC;
3763 static int rocker_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
3764 struct net_device *dev,
3767 struct rocker_port *rocker_port = netdev_priv(dev);
3768 u16 mode = BRIDGE_MODE_UNDEF;
3769 u32 mask = BR_LEARNING | BR_LEARNING_SYNC;
3771 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode,
3772 rocker_port->brport_flags, mask);
3775 static int rocker_port_switch_parent_id_get(struct net_device *dev,
3776 struct netdev_phys_item_id *psid)
3778 struct rocker_port *rocker_port = netdev_priv(dev);
3779 struct rocker *rocker = rocker_port->rocker;
3781 psid->id_len = sizeof(rocker->hw.id);
3782 memcpy(&psid->id, &rocker->hw.id, psid->id_len);
3786 static int rocker_port_switch_port_stp_update(struct net_device *dev, u8 state)
3788 struct rocker_port *rocker_port = netdev_priv(dev);
3790 return rocker_port_stp_update(rocker_port, state);
3793 static const struct net_device_ops rocker_port_netdev_ops = {
3794 .ndo_open = rocker_port_open,
3795 .ndo_stop = rocker_port_stop,
3796 .ndo_start_xmit = rocker_port_xmit,
3797 .ndo_set_mac_address = rocker_port_set_mac_address,
3798 .ndo_vlan_rx_add_vid = rocker_port_vlan_rx_add_vid,
3799 .ndo_vlan_rx_kill_vid = rocker_port_vlan_rx_kill_vid,
3800 .ndo_fdb_add = rocker_port_fdb_add,
3801 .ndo_fdb_del = rocker_port_fdb_del,
3802 .ndo_fdb_dump = rocker_port_fdb_dump,
3803 .ndo_bridge_setlink = rocker_port_bridge_setlink,
3804 .ndo_bridge_getlink = rocker_port_bridge_getlink,
3805 .ndo_switch_parent_id_get = rocker_port_switch_parent_id_get,
3806 .ndo_switch_port_stp_update = rocker_port_switch_port_stp_update,
3809 /********************
3811 ********************/
3813 static int rocker_port_get_settings(struct net_device *dev,
3814 struct ethtool_cmd *ecmd)
3816 struct rocker_port *rocker_port = netdev_priv(dev);
3818 return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd);
3821 static int rocker_port_set_settings(struct net_device *dev,
3822 struct ethtool_cmd *ecmd)
3824 struct rocker_port *rocker_port = netdev_priv(dev);
3826 return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd);
3829 static void rocker_port_get_drvinfo(struct net_device *dev,
3830 struct ethtool_drvinfo *drvinfo)
3832 strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver));
3833 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
3836 static struct rocker_port_stats {
3837 char str[ETH_GSTRING_LEN];
3839 } rocker_port_stats[] = {
3840 { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, },
3841 { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, },
3842 { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, },
3843 { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, },
3845 { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, },
3846 { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, },
3847 { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, },
3848 { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, },
3851 #define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats)
3853 static void rocker_port_get_strings(struct net_device *netdev, u32 stringset,
3859 switch (stringset) {
3861 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
3862 memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN);
3863 p += ETH_GSTRING_LEN;
3870 rocker_cmd_get_port_stats_prep(struct rocker *rocker,
3871 struct rocker_port *rocker_port,
3872 struct rocker_desc_info *desc_info,
3875 struct rocker_tlv *cmd_stats;
3877 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
3878 ROCKER_TLV_CMD_TYPE_GET_PORT_STATS))
3881 cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
3885 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_LPORT,
3886 rocker_port->lport))
3889 rocker_tlv_nest_end(desc_info, cmd_stats);
3895 rocker_cmd_get_port_stats_ethtool_proc(struct rocker *rocker,
3896 struct rocker_port *rocker_port,
3897 struct rocker_desc_info *desc_info,
3900 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
3901 struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1];
3902 struct rocker_tlv *pattr;
3907 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
3909 if (!attrs[ROCKER_TLV_CMD_INFO])
3912 rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX,
3913 attrs[ROCKER_TLV_CMD_INFO]);
3915 if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_LPORT])
3918 lport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_LPORT]);
3919 if (lport != rocker_port->lport)
3922 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
3923 pattr = stats_attrs[rocker_port_stats[i].type];
3927 data[i] = rocker_tlv_get_u64(pattr);
3933 static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port,
3936 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
3937 rocker_cmd_get_port_stats_prep, NULL,
3938 rocker_cmd_get_port_stats_ethtool_proc,
3942 static void rocker_port_get_stats(struct net_device *dev,
3943 struct ethtool_stats *stats, u64 *data)
3945 struct rocker_port *rocker_port = netdev_priv(dev);
3947 if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) {
3950 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i)
3957 static int rocker_port_get_sset_count(struct net_device *netdev, int sset)
3961 return ROCKER_PORT_STATS_LEN;
3967 static const struct ethtool_ops rocker_port_ethtool_ops = {
3968 .get_settings = rocker_port_get_settings,
3969 .set_settings = rocker_port_set_settings,
3970 .get_drvinfo = rocker_port_get_drvinfo,
3971 .get_link = ethtool_op_get_link,
3972 .get_strings = rocker_port_get_strings,
3973 .get_ethtool_stats = rocker_port_get_stats,
3974 .get_sset_count = rocker_port_get_sset_count,
3981 static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi)
3983 return container_of(napi, struct rocker_port, napi_tx);
3986 static int rocker_port_poll_tx(struct napi_struct *napi, int budget)
3988 struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi);
3989 struct rocker *rocker = rocker_port->rocker;
3990 struct rocker_desc_info *desc_info;
3994 /* Cleanup tx descriptors */
3995 while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) {
3996 struct sk_buff *skb;
3998 err = rocker_desc_err(desc_info);
3999 if (err && net_ratelimit())
4000 netdev_err(rocker_port->dev, "tx desc received with err %d\n",
4002 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
4004 skb = rocker_desc_cookie_ptr_get(desc_info);
4006 rocker_port->dev->stats.tx_packets++;
4007 rocker_port->dev->stats.tx_bytes += skb->len;
4009 rocker_port->dev->stats.tx_errors++;
4011 dev_kfree_skb_any(skb);
4015 if (credits && netif_queue_stopped(rocker_port->dev))
4016 netif_wake_queue(rocker_port->dev);
4018 napi_complete(napi);
4019 rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits);
4024 static int rocker_port_rx_proc(struct rocker *rocker,
4025 struct rocker_port *rocker_port,
4026 struct rocker_desc_info *desc_info)
4028 struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
4029 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
4035 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
4036 if (!attrs[ROCKER_TLV_RX_FRAG_LEN])
4039 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
4041 rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]);
4042 skb_put(skb, rx_len);
4043 skb->protocol = eth_type_trans(skb, rocker_port->dev);
4045 rocker_port->dev->stats.rx_packets++;
4046 rocker_port->dev->stats.rx_bytes += skb->len;
4048 netif_receive_skb(skb);
4050 return rocker_dma_rx_ring_skb_alloc(rocker, rocker_port, desc_info);
4053 static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi)
4055 return container_of(napi, struct rocker_port, napi_rx);
4058 static int rocker_port_poll_rx(struct napi_struct *napi, int budget)
4060 struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi);
4061 struct rocker *rocker = rocker_port->rocker;
4062 struct rocker_desc_info *desc_info;
4066 /* Process rx descriptors */
4067 while (credits < budget &&
4068 (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) {
4069 err = rocker_desc_err(desc_info);
4071 if (net_ratelimit())
4072 netdev_err(rocker_port->dev, "rx desc received with err %d\n",
4075 err = rocker_port_rx_proc(rocker, rocker_port,
4077 if (err && net_ratelimit())
4078 netdev_err(rocker_port->dev, "rx processing failed with err %d\n",
4082 rocker_port->dev->stats.rx_errors++;
4084 rocker_desc_gen_clear(desc_info);
4085 rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info);
4089 if (credits < budget)
4090 napi_complete(napi);
4092 rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits);
4101 static void rocker_carrier_init(struct rocker_port *rocker_port)
4103 struct rocker *rocker = rocker_port->rocker;
4104 u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS);
4107 link_up = link_status & (1 << rocker_port->lport);
4109 netif_carrier_on(rocker_port->dev);
4111 netif_carrier_off(rocker_port->dev);
4114 static void rocker_remove_ports(struct rocker *rocker)
4116 struct rocker_port *rocker_port;
4119 for (i = 0; i < rocker->port_count; i++) {
4120 rocker_port = rocker->ports[i];
4121 rocker_port_ig_tbl(rocker_port, ROCKER_OP_FLAG_REMOVE);
4122 unregister_netdev(rocker_port->dev);
4124 kfree(rocker->ports);
4127 static void rocker_port_dev_addr_init(struct rocker *rocker,
4128 struct rocker_port *rocker_port)
4130 struct pci_dev *pdev = rocker->pdev;
4133 err = rocker_cmd_get_port_settings_macaddr(rocker_port,
4134 rocker_port->dev->dev_addr);
4136 dev_warn(&pdev->dev, "failed to get mac address, using random\n");
4137 eth_hw_addr_random(rocker_port->dev);
4141 static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
4143 struct pci_dev *pdev = rocker->pdev;
4144 struct rocker_port *rocker_port;
4145 struct net_device *dev;
4148 dev = alloc_etherdev(sizeof(struct rocker_port));
4151 rocker_port = netdev_priv(dev);
4152 rocker_port->dev = dev;
4153 rocker_port->rocker = rocker;
4154 rocker_port->port_number = port_number;
4155 rocker_port->lport = port_number + 1;
4156 rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC;
4158 rocker_port_dev_addr_init(rocker, rocker_port);
4159 dev->netdev_ops = &rocker_port_netdev_ops;
4160 dev->ethtool_ops = &rocker_port_ethtool_ops;
4161 netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx,
4163 netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx,
4165 rocker_carrier_init(rocker_port);
4167 dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER |
4168 NETIF_F_HW_SWITCH_OFFLOAD;
4170 err = register_netdev(dev);
4172 dev_err(&pdev->dev, "register_netdev failed\n");
4173 goto err_register_netdev;
4175 rocker->ports[port_number] = rocker_port;
4177 rocker_port_set_learning(rocker_port);
4179 rocker_port->internal_vlan_id =
4180 rocker_port_internal_vlan_id_get(rocker_port, dev->ifindex);
4181 err = rocker_port_ig_tbl(rocker_port, 0);
4183 dev_err(&pdev->dev, "install ig port table failed\n");
4184 goto err_port_ig_tbl;
4190 unregister_netdev(dev);
4191 err_register_netdev:
4196 static int rocker_probe_ports(struct rocker *rocker)
4202 alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
4203 rocker->ports = kmalloc(alloc_size, GFP_KERNEL);
4206 for (i = 0; i < rocker->port_count; i++) {
4207 err = rocker_probe_port(rocker, i);
4214 rocker_remove_ports(rocker);
4218 static int rocker_msix_init(struct rocker *rocker)
4220 struct pci_dev *pdev = rocker->pdev;
4225 msix_entries = pci_msix_vec_count(pdev);
4226 if (msix_entries < 0)
4227 return msix_entries;
4229 if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count))
4232 rocker->msix_entries = kmalloc_array(msix_entries,
4233 sizeof(struct msix_entry),
4235 if (!rocker->msix_entries)
4238 for (i = 0; i < msix_entries; i++)
4239 rocker->msix_entries[i].entry = i;
4241 err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries);
4243 goto err_enable_msix;
4248 kfree(rocker->msix_entries);
4252 static void rocker_msix_fini(struct rocker *rocker)
4254 pci_disable_msix(rocker->pdev);
4255 kfree(rocker->msix_entries);
4258 static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
4260 struct rocker *rocker;
4263 rocker = kzalloc(sizeof(*rocker), GFP_KERNEL);
4267 err = pci_enable_device(pdev);
4269 dev_err(&pdev->dev, "pci_enable_device failed\n");
4270 goto err_pci_enable_device;
4273 err = pci_request_regions(pdev, rocker_driver_name);
4275 dev_err(&pdev->dev, "pci_request_regions failed\n");
4276 goto err_pci_request_regions;
4279 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
4281 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
4283 dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n");
4284 goto err_pci_set_dma_mask;
4287 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
4289 dev_err(&pdev->dev, "pci_set_dma_mask failed\n");
4290 goto err_pci_set_dma_mask;
4294 if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) {
4295 dev_err(&pdev->dev, "invalid PCI region size\n");
4296 goto err_pci_resource_len_check;
4299 rocker->hw_addr = ioremap(pci_resource_start(pdev, 0),
4300 pci_resource_len(pdev, 0));
4301 if (!rocker->hw_addr) {
4302 dev_err(&pdev->dev, "ioremap failed\n");
4306 pci_set_master(pdev);
4308 rocker->pdev = pdev;
4309 pci_set_drvdata(pdev, rocker);
4311 rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT);
4313 err = rocker_msix_init(rocker);
4315 dev_err(&pdev->dev, "MSI-X init failed\n");
4319 err = rocker_basic_hw_test(rocker);
4321 dev_err(&pdev->dev, "basic hw test failed\n");
4322 goto err_basic_hw_test;
4325 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
4327 err = rocker_dma_rings_init(rocker);
4329 goto err_dma_rings_init;
4331 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD),
4332 rocker_cmd_irq_handler, 0,
4333 rocker_driver_name, rocker);
4335 dev_err(&pdev->dev, "cannot assign cmd irq\n");
4336 goto err_request_cmd_irq;
4339 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT),
4340 rocker_event_irq_handler, 0,
4341 rocker_driver_name, rocker);
4343 dev_err(&pdev->dev, "cannot assign event irq\n");
4344 goto err_request_event_irq;
4347 rocker->hw.id = rocker_read64(rocker, SWITCH_ID);
4349 err = rocker_init_tbls(rocker);
4351 dev_err(&pdev->dev, "cannot init rocker tables\n");
4355 err = rocker_probe_ports(rocker);
4357 dev_err(&pdev->dev, "failed to probe ports\n");
4358 goto err_probe_ports;
4361 dev_info(&pdev->dev, "Rocker switch with id %016llx\n", rocker->hw.id);
4366 rocker_free_tbls(rocker);
4368 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
4369 err_request_event_irq:
4370 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
4371 err_request_cmd_irq:
4372 rocker_dma_rings_fini(rocker);
4375 rocker_msix_fini(rocker);
4377 iounmap(rocker->hw_addr);
4379 err_pci_resource_len_check:
4380 err_pci_set_dma_mask:
4381 pci_release_regions(pdev);
4382 err_pci_request_regions:
4383 pci_disable_device(pdev);
4384 err_pci_enable_device:
4389 static void rocker_remove(struct pci_dev *pdev)
4391 struct rocker *rocker = pci_get_drvdata(pdev);
4393 rocker_free_tbls(rocker);
4394 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
4395 rocker_remove_ports(rocker);
4396 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
4397 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
4398 rocker_dma_rings_fini(rocker);
4399 rocker_msix_fini(rocker);
4400 iounmap(rocker->hw_addr);
4401 pci_release_regions(rocker->pdev);
4402 pci_disable_device(rocker->pdev);
4406 static struct pci_driver rocker_pci_driver = {
4407 .name = rocker_driver_name,
4408 .id_table = rocker_pci_id_table,
4409 .probe = rocker_probe,
4410 .remove = rocker_remove,
4413 /************************************
4414 * Net device notifier event handler
4415 ************************************/
4417 static bool rocker_port_dev_check(struct net_device *dev)
4419 return dev->netdev_ops == &rocker_port_netdev_ops;
4422 static int rocker_port_bridge_join(struct rocker_port *rocker_port,
4423 struct net_device *bridge)
4427 rocker_port_internal_vlan_id_put(rocker_port,
4428 rocker_port->dev->ifindex);
4430 rocker_port->bridge_dev = bridge;
4432 /* Use bridge internal VLAN ID for untagged pkts */
4433 err = rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, 0);
4436 rocker_port->internal_vlan_id =
4437 rocker_port_internal_vlan_id_get(rocker_port,
4439 err = rocker_port_vlan(rocker_port, 0, 0);
4444 static int rocker_port_bridge_leave(struct rocker_port *rocker_port)
4448 rocker_port_internal_vlan_id_put(rocker_port,
4449 rocker_port->bridge_dev->ifindex);
4451 rocker_port->bridge_dev = NULL;
4453 /* Use port internal VLAN ID for untagged pkts */
4454 err = rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, 0);
4457 rocker_port->internal_vlan_id =
4458 rocker_port_internal_vlan_id_get(rocker_port,
4459 rocker_port->dev->ifindex);
4460 err = rocker_port_vlan(rocker_port, 0, 0);
4465 static int rocker_port_master_changed(struct net_device *dev)
4467 struct rocker_port *rocker_port = netdev_priv(dev);
4468 struct net_device *master = netdev_master_upper_dev_get(dev);
4471 if (master && master->rtnl_link_ops &&
4472 !strcmp(master->rtnl_link_ops->kind, "bridge"))
4473 err = rocker_port_bridge_join(rocker_port, master);
4475 err = rocker_port_bridge_leave(rocker_port);
4480 static int rocker_netdevice_event(struct notifier_block *unused,
4481 unsigned long event, void *ptr)
4483 struct net_device *dev;
4487 case NETDEV_CHANGEUPPER:
4488 dev = netdev_notifier_info_to_dev(ptr);
4489 if (!rocker_port_dev_check(dev))
4491 err = rocker_port_master_changed(dev);
4494 "failed to reflect master change (err %d)\n",
4502 static struct notifier_block rocker_netdevice_nb __read_mostly = {
4503 .notifier_call = rocker_netdevice_event,
4506 /***********************
4507 * Module init and exit
4508 ***********************/
4510 static int __init rocker_module_init(void)
4514 register_netdevice_notifier(&rocker_netdevice_nb);
4515 err = pci_register_driver(&rocker_pci_driver);
4517 goto err_pci_register_driver;
4520 err_pci_register_driver:
4521 unregister_netdevice_notifier(&rocker_netdevice_nb);
4525 static void __exit rocker_module_exit(void)
4527 unregister_netdevice_notifier(&rocker_netdevice_nb);
4528 pci_unregister_driver(&rocker_pci_driver);
4531 module_init(rocker_module_init);
4532 module_exit(rocker_module_exit);
4534 MODULE_LICENSE("GPL v2");
4535 MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
4536 MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
4537 MODULE_DESCRIPTION("Rocker switch device driver");
4538 MODULE_DEVICE_TABLE(pci, rocker_pci_id_table);