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 <linux/ctype.h>
34 #include <net/switchdev.h>
35 #include <net/rtnetlink.h>
36 #include <net/ip_fib.h>
37 #include <net/netevent.h>
39 #include <asm-generic/io-64-nonatomic-lo-hi.h>
40 #include <generated/utsrelease.h>
44 static const char rocker_driver_name[] = "rocker";
46 static const struct pci_device_id rocker_pci_id_table[] = {
47 {PCI_VDEVICE(REDHAT, PCI_DEVICE_ID_REDHAT_ROCKER), 0},
51 struct rocker_flow_tbl_key {
53 enum rocker_of_dpa_table_id tbl_id;
58 enum rocker_of_dpa_table_id goto_tbl;
64 enum rocker_of_dpa_table_id goto_tbl;
73 u8 eth_dst_mask[ETH_ALEN];
76 enum rocker_of_dpa_table_id goto_tbl;
83 enum rocker_of_dpa_table_id goto_tbl;
88 u8 eth_dst_mask[ETH_ALEN];
93 enum rocker_of_dpa_table_id goto_tbl;
100 u8 eth_src[ETH_ALEN];
101 u8 eth_src_mask[ETH_ALEN];
102 u8 eth_dst[ETH_ALEN];
103 u8 eth_dst_mask[ETH_ALEN];
116 struct rocker_flow_tbl_entry {
117 struct hlist_node entry;
120 struct rocker_flow_tbl_key key;
122 u32 key_crc32; /* key */
125 struct rocker_group_tbl_entry {
126 struct hlist_node entry;
128 u32 group_id; /* key */
136 u8 eth_src[ETH_ALEN];
137 u8 eth_dst[ETH_ALEN];
142 u8 eth_src[ETH_ALEN];
143 u8 eth_dst[ETH_ALEN];
151 struct rocker_fdb_tbl_entry {
152 struct hlist_node entry;
153 u32 key_crc32; /* key */
155 struct rocker_fdb_tbl_key {
162 struct rocker_internal_vlan_tbl_entry {
163 struct hlist_node entry;
164 int ifindex; /* key */
169 struct rocker_neigh_tbl_entry {
170 struct hlist_node entry;
171 __be32 ip_addr; /* key */
172 struct net_device *dev;
175 u8 eth_dst[ETH_ALEN];
179 struct rocker_desc_info {
180 char *data; /* mapped */
183 struct rocker_desc *desc;
187 struct rocker_dma_ring_info {
191 struct rocker_desc *desc; /* mapped */
193 struct rocker_desc_info *desc_info;
200 ROCKER_CTRL_LINK_LOCAL_MCAST,
201 ROCKER_CTRL_LOCAL_ARP,
202 ROCKER_CTRL_IPV4_MCAST,
203 ROCKER_CTRL_IPV6_MCAST,
204 ROCKER_CTRL_DFLT_BRIDGING,
208 #define ROCKER_INTERNAL_VLAN_ID_BASE 0x0f00
209 #define ROCKER_N_INTERNAL_VLANS 255
210 #define ROCKER_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID)
211 #define ROCKER_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(ROCKER_N_INTERNAL_VLANS)
214 struct net_device *dev;
215 struct net_device *bridge_dev;
216 struct rocker *rocker;
217 unsigned int port_number;
219 __be16 internal_vlan_id;
222 bool ctrls[ROCKER_CTRL_MAX];
223 unsigned long vlan_bitmap[ROCKER_VLAN_BITMAP_LEN];
224 struct napi_struct napi_tx;
225 struct napi_struct napi_rx;
226 struct rocker_dma_ring_info tx_ring;
227 struct rocker_dma_ring_info rx_ring;
228 struct list_head trans_mem;
232 struct pci_dev *pdev;
234 struct msix_entry *msix_entries;
235 unsigned int port_count;
236 struct rocker_port **ports;
240 spinlock_t cmd_ring_lock; /* for cmd ring accesses */
241 struct rocker_dma_ring_info cmd_ring;
242 struct rocker_dma_ring_info event_ring;
243 DECLARE_HASHTABLE(flow_tbl, 16);
244 spinlock_t flow_tbl_lock; /* for flow tbl accesses */
245 u64 flow_tbl_next_cookie;
246 DECLARE_HASHTABLE(group_tbl, 16);
247 spinlock_t group_tbl_lock; /* for group tbl accesses */
248 DECLARE_HASHTABLE(fdb_tbl, 16);
249 spinlock_t fdb_tbl_lock; /* for fdb tbl accesses */
250 unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN];
251 DECLARE_HASHTABLE(internal_vlan_tbl, 8);
252 spinlock_t internal_vlan_tbl_lock; /* for vlan tbl accesses */
253 DECLARE_HASHTABLE(neigh_tbl, 16);
254 spinlock_t neigh_tbl_lock; /* for neigh tbl accesses */
255 u32 neigh_tbl_next_index;
258 static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
259 static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
260 static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
261 static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
262 static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
263 static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
264 static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
265 static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
266 static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
268 /* Rocker priority levels for flow table entries. Higher
269 * priority match takes precedence over lower priority match.
273 ROCKER_PRIORITY_UNKNOWN = 0,
274 ROCKER_PRIORITY_IG_PORT = 1,
275 ROCKER_PRIORITY_VLAN = 1,
276 ROCKER_PRIORITY_TERM_MAC_UCAST = 0,
277 ROCKER_PRIORITY_TERM_MAC_MCAST = 1,
278 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1,
279 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2,
280 ROCKER_PRIORITY_BRIDGING_VLAN = 3,
281 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1,
282 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2,
283 ROCKER_PRIORITY_BRIDGING_TENANT = 3,
284 ROCKER_PRIORITY_ACL_CTRL = 3,
285 ROCKER_PRIORITY_ACL_NORMAL = 2,
286 ROCKER_PRIORITY_ACL_DFLT = 1,
289 static bool rocker_vlan_id_is_internal(__be16 vlan_id)
291 u16 start = ROCKER_INTERNAL_VLAN_ID_BASE;
293 u16 _vlan_id = ntohs(vlan_id);
295 return (_vlan_id >= start && _vlan_id <= end);
298 static __be16 rocker_port_vid_to_vlan(const struct rocker_port *rocker_port,
299 u16 vid, bool *pop_vlan)
305 vlan_id = htons(vid);
307 vlan_id = rocker_port->internal_vlan_id;
315 static u16 rocker_port_vlan_to_vid(const struct rocker_port *rocker_port,
318 if (rocker_vlan_id_is_internal(vlan_id))
321 return ntohs(vlan_id);
324 static bool rocker_port_is_bridged(const struct rocker_port *rocker_port)
326 return !!rocker_port->bridge_dev;
329 #define ROCKER_OP_FLAG_REMOVE BIT(0)
330 #define ROCKER_OP_FLAG_NOWAIT BIT(1)
331 #define ROCKER_OP_FLAG_LEARNED BIT(2)
332 #define ROCKER_OP_FLAG_REFRESH BIT(3)
334 static void *__rocker_port_mem_alloc(struct rocker_port *rocker_port,
335 enum switchdev_trans trans, int flags,
338 struct list_head *elem = NULL;
339 gfp_t gfp_flags = (flags & ROCKER_OP_FLAG_NOWAIT) ?
340 GFP_ATOMIC : GFP_KERNEL;
342 /* If in transaction prepare phase, allocate the memory
343 * and enqueue it on a per-port list. If in transaction
344 * commit phase, dequeue the memory from the per-port list
345 * rather than re-allocating the memory. The idea is the
346 * driver code paths for prepare and commit are identical
347 * so the memory allocated in the prepare phase is the
348 * memory used in the commit phase.
352 case SWITCHDEV_TRANS_PREPARE:
353 elem = kzalloc(size + sizeof(*elem), gfp_flags);
356 list_add_tail(elem, &rocker_port->trans_mem);
358 case SWITCHDEV_TRANS_COMMIT:
359 BUG_ON(list_empty(&rocker_port->trans_mem));
360 elem = rocker_port->trans_mem.next;
363 case SWITCHDEV_TRANS_NONE:
364 elem = kzalloc(size + sizeof(*elem), gfp_flags);
366 INIT_LIST_HEAD(elem);
372 return elem ? elem + 1 : NULL;
375 static void *rocker_port_kzalloc(struct rocker_port *rocker_port,
376 enum switchdev_trans trans, int flags,
379 return __rocker_port_mem_alloc(rocker_port, trans, flags, size);
382 static void *rocker_port_kcalloc(struct rocker_port *rocker_port,
383 enum switchdev_trans trans, int flags,
384 size_t n, size_t size)
386 return __rocker_port_mem_alloc(rocker_port, trans, flags, n * size);
389 static void rocker_port_kfree(enum switchdev_trans trans, const void *mem)
391 struct list_head *elem;
393 /* Frees are ignored if in transaction prepare phase. The
394 * memory remains on the per-port list until freed in the
398 if (trans == SWITCHDEV_TRANS_PREPARE)
401 elem = (struct list_head *)mem - 1;
402 BUG_ON(!list_empty(elem));
407 wait_queue_head_t wait;
412 static void rocker_wait_reset(struct rocker_wait *wait)
415 wait->nowait = false;
418 static void rocker_wait_init(struct rocker_wait *wait)
420 init_waitqueue_head(&wait->wait);
421 rocker_wait_reset(wait);
424 static struct rocker_wait *rocker_wait_create(struct rocker_port *rocker_port,
425 enum switchdev_trans trans,
428 struct rocker_wait *wait;
430 wait = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*wait));
433 rocker_wait_init(wait);
437 static void rocker_wait_destroy(enum switchdev_trans trans,
438 struct rocker_wait *wait)
440 rocker_port_kfree(trans, wait);
443 static bool rocker_wait_event_timeout(struct rocker_wait *wait,
444 unsigned long timeout)
446 wait_event_timeout(wait->wait, wait->done, HZ / 10);
452 static void rocker_wait_wake_up(struct rocker_wait *wait)
455 wake_up(&wait->wait);
458 static u32 rocker_msix_vector(const struct rocker *rocker, unsigned int vector)
460 return rocker->msix_entries[vector].vector;
463 static u32 rocker_msix_tx_vector(const struct rocker_port *rocker_port)
465 return rocker_msix_vector(rocker_port->rocker,
466 ROCKER_MSIX_VEC_TX(rocker_port->port_number));
469 static u32 rocker_msix_rx_vector(const struct rocker_port *rocker_port)
471 return rocker_msix_vector(rocker_port->rocker,
472 ROCKER_MSIX_VEC_RX(rocker_port->port_number));
475 #define rocker_write32(rocker, reg, val) \
476 writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))
477 #define rocker_read32(rocker, reg) \
478 readl((rocker)->hw_addr + (ROCKER_ ## reg))
479 #define rocker_write64(rocker, reg, val) \
480 writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))
481 #define rocker_read64(rocker, reg) \
482 readq((rocker)->hw_addr + (ROCKER_ ## reg))
484 /*****************************
485 * HW basic testing functions
486 *****************************/
488 static int rocker_reg_test(const struct rocker *rocker)
490 const struct pci_dev *pdev = rocker->pdev;
496 rocker_write32(rocker, TEST_REG, rnd);
497 test_reg = rocker_read32(rocker, TEST_REG);
498 if (test_reg != rnd * 2) {
499 dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n",
506 rnd |= prandom_u32();
507 rocker_write64(rocker, TEST_REG64, rnd);
508 test_reg = rocker_read64(rocker, TEST_REG64);
509 if (test_reg != rnd * 2) {
510 dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n",
518 static int rocker_dma_test_one(const struct rocker *rocker,
519 struct rocker_wait *wait, u32 test_type,
520 dma_addr_t dma_handle, const unsigned char *buf,
521 const unsigned char *expect, size_t size)
523 const struct pci_dev *pdev = rocker->pdev;
526 rocker_wait_reset(wait);
527 rocker_write32(rocker, TEST_DMA_CTRL, test_type);
529 if (!rocker_wait_event_timeout(wait, HZ / 10)) {
530 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
534 for (i = 0; i < size; i++) {
535 if (buf[i] != expect[i]) {
536 dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected",
537 buf[i], i, expect[i]);
544 #define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)
545 #define ROCKER_TEST_DMA_FILL_PATTERN 0x96
547 static int rocker_dma_test_offset(const struct rocker *rocker,
548 struct rocker_wait *wait, int offset)
550 struct pci_dev *pdev = rocker->pdev;
551 unsigned char *alloc;
553 unsigned char *expect;
554 dma_addr_t dma_handle;
558 alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset,
559 GFP_KERNEL | GFP_DMA);
562 buf = alloc + offset;
563 expect = buf + ROCKER_TEST_DMA_BUF_SIZE;
565 dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE,
566 PCI_DMA_BIDIRECTIONAL);
567 if (pci_dma_mapping_error(pdev, dma_handle)) {
572 rocker_write64(rocker, TEST_DMA_ADDR, dma_handle);
573 rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE);
575 memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE);
576 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL,
577 dma_handle, buf, expect,
578 ROCKER_TEST_DMA_BUF_SIZE);
582 memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE);
583 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR,
584 dma_handle, buf, expect,
585 ROCKER_TEST_DMA_BUF_SIZE);
589 prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
590 for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++)
592 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT,
593 dma_handle, buf, expect,
594 ROCKER_TEST_DMA_BUF_SIZE);
599 pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE,
600 PCI_DMA_BIDIRECTIONAL);
607 static int rocker_dma_test(const struct rocker *rocker,
608 struct rocker_wait *wait)
613 for (i = 0; i < 8; i++) {
614 err = rocker_dma_test_offset(rocker, wait, i);
621 static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id)
623 struct rocker_wait *wait = dev_id;
625 rocker_wait_wake_up(wait);
630 static int rocker_basic_hw_test(const struct rocker *rocker)
632 const struct pci_dev *pdev = rocker->pdev;
633 struct rocker_wait wait;
636 err = rocker_reg_test(rocker);
638 dev_err(&pdev->dev, "reg test failed\n");
642 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST),
643 rocker_test_irq_handler, 0,
644 rocker_driver_name, &wait);
646 dev_err(&pdev->dev, "cannot assign test irq\n");
650 rocker_wait_init(&wait);
651 rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST);
653 if (!rocker_wait_event_timeout(&wait, HZ / 10)) {
654 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
659 err = rocker_dma_test(rocker, &wait);
661 dev_err(&pdev->dev, "dma test failed\n");
664 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait);
672 #define ROCKER_TLV_ALIGNTO 8U
673 #define ROCKER_TLV_ALIGN(len) \
674 (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
675 #define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
677 /* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
678 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
679 * | Header | Pad | Payload | Pad |
680 * | (struct rocker_tlv) | ing | | ing |
681 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
682 * <--------------------------- tlv->len -------------------------->
685 static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv,
688 int totlen = ROCKER_TLV_ALIGN(tlv->len);
690 *remaining -= totlen;
691 return (struct rocker_tlv *) ((char *) tlv + totlen);
694 static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining)
696 return remaining >= (int) ROCKER_TLV_HDRLEN &&
697 tlv->len >= ROCKER_TLV_HDRLEN &&
698 tlv->len <= remaining;
701 #define rocker_tlv_for_each(pos, head, len, rem) \
702 for (pos = head, rem = len; \
703 rocker_tlv_ok(pos, rem); \
704 pos = rocker_tlv_next(pos, &(rem)))
706 #define rocker_tlv_for_each_nested(pos, tlv, rem) \
707 rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
708 rocker_tlv_len(tlv), rem)
710 static int rocker_tlv_attr_size(int payload)
712 return ROCKER_TLV_HDRLEN + payload;
715 static int rocker_tlv_total_size(int payload)
717 return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload));
720 static int rocker_tlv_padlen(int payload)
722 return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload);
725 static int rocker_tlv_type(const struct rocker_tlv *tlv)
730 static void *rocker_tlv_data(const struct rocker_tlv *tlv)
732 return (char *) tlv + ROCKER_TLV_HDRLEN;
735 static int rocker_tlv_len(const struct rocker_tlv *tlv)
737 return tlv->len - ROCKER_TLV_HDRLEN;
740 static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv)
742 return *(u8 *) rocker_tlv_data(tlv);
745 static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv)
747 return *(u16 *) rocker_tlv_data(tlv);
750 static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv)
752 return *(__be16 *) rocker_tlv_data(tlv);
755 static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv)
757 return *(u32 *) rocker_tlv_data(tlv);
760 static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv)
762 return *(u64 *) rocker_tlv_data(tlv);
765 static void rocker_tlv_parse(const struct rocker_tlv **tb, int maxtype,
766 const char *buf, int buf_len)
768 const struct rocker_tlv *tlv;
769 const struct rocker_tlv *head = (const struct rocker_tlv *) buf;
772 memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1));
774 rocker_tlv_for_each(tlv, head, buf_len, rem) {
775 u32 type = rocker_tlv_type(tlv);
777 if (type > 0 && type <= maxtype)
782 static void rocker_tlv_parse_nested(const struct rocker_tlv **tb, int maxtype,
783 const struct rocker_tlv *tlv)
785 rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv),
786 rocker_tlv_len(tlv));
789 static void rocker_tlv_parse_desc(const struct rocker_tlv **tb, int maxtype,
790 const struct rocker_desc_info *desc_info)
792 rocker_tlv_parse(tb, maxtype, desc_info->data,
793 desc_info->desc->tlv_size);
796 static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info)
798 return (struct rocker_tlv *) ((char *) desc_info->data +
799 desc_info->tlv_size);
802 static int rocker_tlv_put(struct rocker_desc_info *desc_info,
803 int attrtype, int attrlen, const void *data)
805 int tail_room = desc_info->data_size - desc_info->tlv_size;
806 int total_size = rocker_tlv_total_size(attrlen);
807 struct rocker_tlv *tlv;
809 if (unlikely(tail_room < total_size))
812 tlv = rocker_tlv_start(desc_info);
813 desc_info->tlv_size += total_size;
814 tlv->type = attrtype;
815 tlv->len = rocker_tlv_attr_size(attrlen);
816 memcpy(rocker_tlv_data(tlv), data, attrlen);
817 memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen));
821 static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info,
822 int attrtype, u8 value)
824 return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value);
827 static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info,
828 int attrtype, u16 value)
830 return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value);
833 static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info,
834 int attrtype, __be16 value)
836 return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value);
839 static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info,
840 int attrtype, u32 value)
842 return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value);
845 static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info,
846 int attrtype, __be32 value)
848 return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value);
851 static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info,
852 int attrtype, u64 value)
854 return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value);
857 static struct rocker_tlv *
858 rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype)
860 struct rocker_tlv *start = rocker_tlv_start(desc_info);
862 if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0)
868 static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info,
869 struct rocker_tlv *start)
871 start->len = (char *) rocker_tlv_start(desc_info) - (char *) start;
874 static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info,
875 const struct rocker_tlv *start)
877 desc_info->tlv_size = (const char *) start - desc_info->data;
880 /******************************************
881 * DMA rings and descriptors manipulations
882 ******************************************/
884 static u32 __pos_inc(u32 pos, size_t limit)
886 return ++pos == limit ? 0 : pos;
889 static int rocker_desc_err(const struct rocker_desc_info *desc_info)
891 int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN;
906 case -ROCKER_EMSGSIZE:
908 case -ROCKER_ENOTSUP:
910 case -ROCKER_ENOBUFS:
917 static void rocker_desc_gen_clear(const struct rocker_desc_info *desc_info)
919 desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN;
922 static bool rocker_desc_gen(const struct rocker_desc_info *desc_info)
924 u32 comp_err = desc_info->desc->comp_err;
926 return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false;
929 static void *rocker_desc_cookie_ptr_get(const struct rocker_desc_info *desc_info)
931 return (void *)(uintptr_t)desc_info->desc->cookie;
934 static void rocker_desc_cookie_ptr_set(const struct rocker_desc_info *desc_info,
937 desc_info->desc->cookie = (uintptr_t) ptr;
940 static struct rocker_desc_info *
941 rocker_desc_head_get(const struct rocker_dma_ring_info *info)
943 static struct rocker_desc_info *desc_info;
944 u32 head = __pos_inc(info->head, info->size);
946 desc_info = &info->desc_info[info->head];
947 if (head == info->tail)
948 return NULL; /* ring full */
949 desc_info->tlv_size = 0;
953 static void rocker_desc_commit(const struct rocker_desc_info *desc_info)
955 desc_info->desc->buf_size = desc_info->data_size;
956 desc_info->desc->tlv_size = desc_info->tlv_size;
959 static void rocker_desc_head_set(const struct rocker *rocker,
960 struct rocker_dma_ring_info *info,
961 const struct rocker_desc_info *desc_info)
963 u32 head = __pos_inc(info->head, info->size);
965 BUG_ON(head == info->tail);
966 rocker_desc_commit(desc_info);
968 rocker_write32(rocker, DMA_DESC_HEAD(info->type), head);
971 static struct rocker_desc_info *
972 rocker_desc_tail_get(struct rocker_dma_ring_info *info)
974 static struct rocker_desc_info *desc_info;
976 if (info->tail == info->head)
977 return NULL; /* nothing to be done between head and tail */
978 desc_info = &info->desc_info[info->tail];
979 if (!rocker_desc_gen(desc_info))
980 return NULL; /* gen bit not set, desc is not ready yet */
981 info->tail = __pos_inc(info->tail, info->size);
982 desc_info->tlv_size = desc_info->desc->tlv_size;
986 static void rocker_dma_ring_credits_set(const struct rocker *rocker,
987 const struct rocker_dma_ring_info *info,
991 rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits);
994 static unsigned long rocker_dma_ring_size_fix(size_t size)
996 return max(ROCKER_DMA_SIZE_MIN,
997 min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX));
1000 static int rocker_dma_ring_create(const struct rocker *rocker,
1003 struct rocker_dma_ring_info *info)
1007 BUG_ON(size != rocker_dma_ring_size_fix(size));
1012 info->desc_info = kcalloc(info->size, sizeof(*info->desc_info),
1014 if (!info->desc_info)
1017 info->desc = pci_alloc_consistent(rocker->pdev,
1018 info->size * sizeof(*info->desc),
1021 kfree(info->desc_info);
1025 for (i = 0; i < info->size; i++)
1026 info->desc_info[i].desc = &info->desc[i];
1028 rocker_write32(rocker, DMA_DESC_CTRL(info->type),
1029 ROCKER_DMA_DESC_CTRL_RESET);
1030 rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr);
1031 rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size);
1036 static void rocker_dma_ring_destroy(const struct rocker *rocker,
1037 const struct rocker_dma_ring_info *info)
1039 rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0);
1041 pci_free_consistent(rocker->pdev,
1042 info->size * sizeof(struct rocker_desc),
1043 info->desc, info->mapaddr);
1044 kfree(info->desc_info);
1047 static void rocker_dma_ring_pass_to_producer(const struct rocker *rocker,
1048 struct rocker_dma_ring_info *info)
1052 BUG_ON(info->head || info->tail);
1054 /* When ring is consumer, we need to advance head for each desc.
1055 * That tells hw that the desc is ready to be used by it.
1057 for (i = 0; i < info->size - 1; i++)
1058 rocker_desc_head_set(rocker, info, &info->desc_info[i]);
1059 rocker_desc_commit(&info->desc_info[i]);
1062 static int rocker_dma_ring_bufs_alloc(const struct rocker *rocker,
1063 const struct rocker_dma_ring_info *info,
1064 int direction, size_t buf_size)
1066 struct pci_dev *pdev = rocker->pdev;
1070 for (i = 0; i < info->size; i++) {
1071 struct rocker_desc_info *desc_info = &info->desc_info[i];
1072 struct rocker_desc *desc = &info->desc[i];
1073 dma_addr_t dma_handle;
1076 buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA);
1082 dma_handle = pci_map_single(pdev, buf, buf_size, direction);
1083 if (pci_dma_mapping_error(pdev, dma_handle)) {
1089 desc_info->data = buf;
1090 desc_info->data_size = buf_size;
1091 dma_unmap_addr_set(desc_info, mapaddr, dma_handle);
1093 desc->buf_addr = dma_handle;
1094 desc->buf_size = buf_size;
1099 for (i--; i >= 0; i--) {
1100 const struct rocker_desc_info *desc_info = &info->desc_info[i];
1102 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1103 desc_info->data_size, direction);
1104 kfree(desc_info->data);
1109 static void rocker_dma_ring_bufs_free(const struct rocker *rocker,
1110 const struct rocker_dma_ring_info *info,
1113 struct pci_dev *pdev = rocker->pdev;
1116 for (i = 0; i < info->size; i++) {
1117 const struct rocker_desc_info *desc_info = &info->desc_info[i];
1118 struct rocker_desc *desc = &info->desc[i];
1122 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1123 desc_info->data_size, direction);
1124 kfree(desc_info->data);
1128 static int rocker_dma_rings_init(struct rocker *rocker)
1130 const struct pci_dev *pdev = rocker->pdev;
1133 err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD,
1134 ROCKER_DMA_CMD_DEFAULT_SIZE,
1137 dev_err(&pdev->dev, "failed to create command dma ring\n");
1141 spin_lock_init(&rocker->cmd_ring_lock);
1143 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring,
1144 PCI_DMA_BIDIRECTIONAL, PAGE_SIZE);
1146 dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n");
1147 goto err_dma_cmd_ring_bufs_alloc;
1150 err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT,
1151 ROCKER_DMA_EVENT_DEFAULT_SIZE,
1152 &rocker->event_ring);
1154 dev_err(&pdev->dev, "failed to create event dma ring\n");
1155 goto err_dma_event_ring_create;
1158 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring,
1159 PCI_DMA_FROMDEVICE, PAGE_SIZE);
1161 dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n");
1162 goto err_dma_event_ring_bufs_alloc;
1164 rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring);
1167 err_dma_event_ring_bufs_alloc:
1168 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1169 err_dma_event_ring_create:
1170 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1171 PCI_DMA_BIDIRECTIONAL);
1172 err_dma_cmd_ring_bufs_alloc:
1173 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1177 static void rocker_dma_rings_fini(struct rocker *rocker)
1179 rocker_dma_ring_bufs_free(rocker, &rocker->event_ring,
1180 PCI_DMA_BIDIRECTIONAL);
1181 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1182 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1183 PCI_DMA_BIDIRECTIONAL);
1184 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1187 static int rocker_dma_rx_ring_skb_map(const struct rocker_port *rocker_port,
1188 struct rocker_desc_info *desc_info,
1189 struct sk_buff *skb, size_t buf_len)
1191 const struct rocker *rocker = rocker_port->rocker;
1192 struct pci_dev *pdev = rocker->pdev;
1193 dma_addr_t dma_handle;
1195 dma_handle = pci_map_single(pdev, skb->data, buf_len,
1196 PCI_DMA_FROMDEVICE);
1197 if (pci_dma_mapping_error(pdev, dma_handle))
1199 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle))
1200 goto tlv_put_failure;
1201 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len))
1202 goto tlv_put_failure;
1206 pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE);
1207 desc_info->tlv_size = 0;
1211 static size_t rocker_port_rx_buf_len(const struct rocker_port *rocker_port)
1213 return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
1216 static int rocker_dma_rx_ring_skb_alloc(const struct rocker_port *rocker_port,
1217 struct rocker_desc_info *desc_info)
1219 struct net_device *dev = rocker_port->dev;
1220 struct sk_buff *skb;
1221 size_t buf_len = rocker_port_rx_buf_len(rocker_port);
1224 /* Ensure that hw will see tlv_size zero in case of an error.
1225 * That tells hw to use another descriptor.
1227 rocker_desc_cookie_ptr_set(desc_info, NULL);
1228 desc_info->tlv_size = 0;
1230 skb = netdev_alloc_skb_ip_align(dev, buf_len);
1233 err = rocker_dma_rx_ring_skb_map(rocker_port, desc_info, skb, buf_len);
1235 dev_kfree_skb_any(skb);
1238 rocker_desc_cookie_ptr_set(desc_info, skb);
1242 static void rocker_dma_rx_ring_skb_unmap(const struct rocker *rocker,
1243 const struct rocker_tlv **attrs)
1245 struct pci_dev *pdev = rocker->pdev;
1246 dma_addr_t dma_handle;
1249 if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] ||
1250 !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN])
1252 dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]);
1253 len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]);
1254 pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE);
1257 static void rocker_dma_rx_ring_skb_free(const struct rocker *rocker,
1258 const struct rocker_desc_info *desc_info)
1260 const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
1261 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
1265 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
1266 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
1267 dev_kfree_skb_any(skb);
1270 static int rocker_dma_rx_ring_skbs_alloc(const struct rocker_port *rocker_port)
1272 const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
1273 const struct rocker *rocker = rocker_port->rocker;
1277 for (i = 0; i < rx_ring->size; i++) {
1278 err = rocker_dma_rx_ring_skb_alloc(rocker_port,
1279 &rx_ring->desc_info[i]);
1286 for (i--; i >= 0; i--)
1287 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1291 static void rocker_dma_rx_ring_skbs_free(const struct rocker_port *rocker_port)
1293 const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
1294 const struct rocker *rocker = rocker_port->rocker;
1297 for (i = 0; i < rx_ring->size; i++)
1298 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1301 static int rocker_port_dma_rings_init(struct rocker_port *rocker_port)
1303 struct rocker *rocker = rocker_port->rocker;
1306 err = rocker_dma_ring_create(rocker,
1307 ROCKER_DMA_TX(rocker_port->port_number),
1308 ROCKER_DMA_TX_DEFAULT_SIZE,
1309 &rocker_port->tx_ring);
1311 netdev_err(rocker_port->dev, "failed to create tx dma ring\n");
1315 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring,
1317 ROCKER_DMA_TX_DESC_SIZE);
1319 netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n");
1320 goto err_dma_tx_ring_bufs_alloc;
1323 err = rocker_dma_ring_create(rocker,
1324 ROCKER_DMA_RX(rocker_port->port_number),
1325 ROCKER_DMA_RX_DEFAULT_SIZE,
1326 &rocker_port->rx_ring);
1328 netdev_err(rocker_port->dev, "failed to create rx dma ring\n");
1329 goto err_dma_rx_ring_create;
1332 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring,
1333 PCI_DMA_BIDIRECTIONAL,
1334 ROCKER_DMA_RX_DESC_SIZE);
1336 netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n");
1337 goto err_dma_rx_ring_bufs_alloc;
1340 err = rocker_dma_rx_ring_skbs_alloc(rocker_port);
1342 netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n");
1343 goto err_dma_rx_ring_skbs_alloc;
1345 rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring);
1349 err_dma_rx_ring_skbs_alloc:
1350 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1351 PCI_DMA_BIDIRECTIONAL);
1352 err_dma_rx_ring_bufs_alloc:
1353 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1354 err_dma_rx_ring_create:
1355 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1357 err_dma_tx_ring_bufs_alloc:
1358 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1362 static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port)
1364 struct rocker *rocker = rocker_port->rocker;
1366 rocker_dma_rx_ring_skbs_free(rocker_port);
1367 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1368 PCI_DMA_BIDIRECTIONAL);
1369 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1370 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1372 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1375 static void rocker_port_set_enable(const struct rocker_port *rocker_port,
1378 u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);
1381 val |= 1ULL << rocker_port->pport;
1383 val &= ~(1ULL << rocker_port->pport);
1384 rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
1387 /********************************
1388 * Interrupt handler and helpers
1389 ********************************/
1391 static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id)
1393 struct rocker *rocker = dev_id;
1394 const struct rocker_desc_info *desc_info;
1395 struct rocker_wait *wait;
1398 spin_lock(&rocker->cmd_ring_lock);
1399 while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) {
1400 wait = rocker_desc_cookie_ptr_get(desc_info);
1402 rocker_desc_gen_clear(desc_info);
1403 rocker_wait_destroy(SWITCHDEV_TRANS_NONE, wait);
1405 rocker_wait_wake_up(wait);
1409 spin_unlock(&rocker->cmd_ring_lock);
1410 rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits);
1415 static void rocker_port_link_up(const struct rocker_port *rocker_port)
1417 netif_carrier_on(rocker_port->dev);
1418 netdev_info(rocker_port->dev, "Link is up\n");
1421 static void rocker_port_link_down(const struct rocker_port *rocker_port)
1423 netif_carrier_off(rocker_port->dev);
1424 netdev_info(rocker_port->dev, "Link is down\n");
1427 static int rocker_event_link_change(const struct rocker *rocker,
1428 const struct rocker_tlv *info)
1430 const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1];
1431 unsigned int port_number;
1433 struct rocker_port *rocker_port;
1435 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info);
1436 if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] ||
1437 !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP])
1440 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1;
1441 link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]);
1443 if (port_number >= rocker->port_count)
1446 rocker_port = rocker->ports[port_number];
1447 if (netif_carrier_ok(rocker_port->dev) != link_up) {
1449 rocker_port_link_up(rocker_port);
1451 rocker_port_link_down(rocker_port);
1457 static int rocker_port_fdb(struct rocker_port *rocker_port,
1458 enum switchdev_trans trans,
1459 const unsigned char *addr,
1460 __be16 vlan_id, int flags);
1462 static int rocker_event_mac_vlan_seen(const struct rocker *rocker,
1463 const struct rocker_tlv *info)
1465 const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1];
1466 unsigned int port_number;
1467 struct rocker_port *rocker_port;
1468 const unsigned char *addr;
1469 int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_LEARNED;
1472 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info);
1473 if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] ||
1474 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] ||
1475 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID])
1478 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1;
1479 addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]);
1480 vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]);
1482 if (port_number >= rocker->port_count)
1485 rocker_port = rocker->ports[port_number];
1487 if (rocker_port->stp_state != BR_STATE_LEARNING &&
1488 rocker_port->stp_state != BR_STATE_FORWARDING)
1491 return rocker_port_fdb(rocker_port, SWITCHDEV_TRANS_NONE,
1492 addr, vlan_id, flags);
1495 static int rocker_event_process(const struct rocker *rocker,
1496 const struct rocker_desc_info *desc_info)
1498 const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1];
1499 const struct rocker_tlv *info;
1502 rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info);
1503 if (!attrs[ROCKER_TLV_EVENT_TYPE] ||
1504 !attrs[ROCKER_TLV_EVENT_INFO])
1507 type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]);
1508 info = attrs[ROCKER_TLV_EVENT_INFO];
1511 case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED:
1512 return rocker_event_link_change(rocker, info);
1513 case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN:
1514 return rocker_event_mac_vlan_seen(rocker, info);
1520 static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id)
1522 struct rocker *rocker = dev_id;
1523 const struct pci_dev *pdev = rocker->pdev;
1524 const struct rocker_desc_info *desc_info;
1528 while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) {
1529 err = rocker_desc_err(desc_info);
1531 dev_err(&pdev->dev, "event desc received with err %d\n",
1534 err = rocker_event_process(rocker, desc_info);
1536 dev_err(&pdev->dev, "event processing failed with err %d\n",
1539 rocker_desc_gen_clear(desc_info);
1540 rocker_desc_head_set(rocker, &rocker->event_ring, desc_info);
1543 rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits);
1548 static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id)
1550 struct rocker_port *rocker_port = dev_id;
1552 napi_schedule(&rocker_port->napi_tx);
1556 static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id)
1558 struct rocker_port *rocker_port = dev_id;
1560 napi_schedule(&rocker_port->napi_rx);
1564 /********************
1566 ********************/
1568 typedef int (*rocker_cmd_prep_cb_t)(const struct rocker_port *rocker_port,
1569 struct rocker_desc_info *desc_info,
1572 typedef int (*rocker_cmd_proc_cb_t)(const struct rocker_port *rocker_port,
1573 const struct rocker_desc_info *desc_info,
1576 static int rocker_cmd_exec(struct rocker_port *rocker_port,
1577 enum switchdev_trans trans, int flags,
1578 rocker_cmd_prep_cb_t prepare, void *prepare_priv,
1579 rocker_cmd_proc_cb_t process, void *process_priv)
1581 struct rocker *rocker = rocker_port->rocker;
1582 struct rocker_desc_info *desc_info;
1583 struct rocker_wait *wait;
1584 bool nowait = !!(flags & ROCKER_OP_FLAG_NOWAIT);
1585 unsigned long lock_flags;
1588 wait = rocker_wait_create(rocker_port, trans, flags);
1591 wait->nowait = nowait;
1593 spin_lock_irqsave(&rocker->cmd_ring_lock, lock_flags);
1595 desc_info = rocker_desc_head_get(&rocker->cmd_ring);
1597 spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);
1602 err = prepare(rocker_port, desc_info, prepare_priv);
1604 spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);
1608 rocker_desc_cookie_ptr_set(desc_info, wait);
1610 if (trans != SWITCHDEV_TRANS_PREPARE)
1611 rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);
1613 spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);
1618 if (trans != SWITCHDEV_TRANS_PREPARE)
1619 if (!rocker_wait_event_timeout(wait, HZ / 10))
1622 err = rocker_desc_err(desc_info);
1627 err = process(rocker_port, desc_info, process_priv);
1629 rocker_desc_gen_clear(desc_info);
1631 rocker_wait_destroy(trans, wait);
1636 rocker_cmd_get_port_settings_prep(const struct rocker_port *rocker_port,
1637 struct rocker_desc_info *desc_info,
1640 struct rocker_tlv *cmd_info;
1642 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1643 ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS))
1645 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1648 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1649 rocker_port->pport))
1651 rocker_tlv_nest_end(desc_info, cmd_info);
1656 rocker_cmd_get_port_settings_ethtool_proc(const struct rocker_port *rocker_port,
1657 const struct rocker_desc_info *desc_info,
1660 struct ethtool_cmd *ecmd = priv;
1661 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1662 const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1667 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1668 if (!attrs[ROCKER_TLV_CMD_INFO])
1671 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1672 attrs[ROCKER_TLV_CMD_INFO]);
1673 if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] ||
1674 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] ||
1675 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG])
1678 speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]);
1679 duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]);
1680 autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]);
1682 ecmd->transceiver = XCVR_INTERNAL;
1683 ecmd->supported = SUPPORTED_TP;
1684 ecmd->phy_address = 0xff;
1685 ecmd->port = PORT_TP;
1686 ethtool_cmd_speed_set(ecmd, speed);
1687 ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF;
1688 ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
1694 rocker_cmd_get_port_settings_macaddr_proc(const struct rocker_port *rocker_port,
1695 const struct rocker_desc_info *desc_info,
1698 unsigned char *macaddr = priv;
1699 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1700 const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1701 const struct rocker_tlv *attr;
1703 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1704 if (!attrs[ROCKER_TLV_CMD_INFO])
1707 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1708 attrs[ROCKER_TLV_CMD_INFO]);
1709 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR];
1713 if (rocker_tlv_len(attr) != ETH_ALEN)
1716 ether_addr_copy(macaddr, rocker_tlv_data(attr));
1726 rocker_cmd_get_port_settings_phys_name_proc(const struct rocker_port *rocker_port,
1727 const struct rocker_desc_info *desc_info,
1730 const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1731 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1732 struct port_name *name = priv;
1733 const struct rocker_tlv *attr;
1737 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1738 if (!attrs[ROCKER_TLV_CMD_INFO])
1741 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1742 attrs[ROCKER_TLV_CMD_INFO]);
1743 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME];
1747 len = min_t(size_t, rocker_tlv_len(attr), name->len);
1748 str = rocker_tlv_data(attr);
1750 /* make sure name only contains alphanumeric characters */
1751 for (i = j = 0; i < len; ++i) {
1752 if (isalnum(str[i])) {
1753 name->buf[j] = str[i];
1761 name->buf[j] = '\0';
1767 rocker_cmd_set_port_settings_ethtool_prep(const struct rocker_port *rocker_port,
1768 struct rocker_desc_info *desc_info,
1771 struct ethtool_cmd *ecmd = priv;
1772 struct rocker_tlv *cmd_info;
1774 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1775 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1777 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1780 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1781 rocker_port->pport))
1783 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED,
1784 ethtool_cmd_speed(ecmd)))
1786 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,
1789 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG,
1792 rocker_tlv_nest_end(desc_info, cmd_info);
1797 rocker_cmd_set_port_settings_macaddr_prep(const struct rocker_port *rocker_port,
1798 struct rocker_desc_info *desc_info,
1801 const unsigned char *macaddr = priv;
1802 struct rocker_tlv *cmd_info;
1804 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1805 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1807 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1810 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1811 rocker_port->pport))
1813 if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR,
1816 rocker_tlv_nest_end(desc_info, cmd_info);
1821 rocker_cmd_set_port_learning_prep(const struct rocker_port *rocker_port,
1822 struct rocker_desc_info *desc_info,
1825 struct rocker_tlv *cmd_info;
1827 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1828 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1830 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1833 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1834 rocker_port->pport))
1836 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING,
1837 !!(rocker_port->brport_flags & BR_LEARNING)))
1839 rocker_tlv_nest_end(desc_info, cmd_info);
1843 static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
1844 struct ethtool_cmd *ecmd)
1846 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
1847 rocker_cmd_get_port_settings_prep, NULL,
1848 rocker_cmd_get_port_settings_ethtool_proc,
1852 static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
1853 unsigned char *macaddr)
1855 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
1856 rocker_cmd_get_port_settings_prep, NULL,
1857 rocker_cmd_get_port_settings_macaddr_proc,
1861 static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
1862 struct ethtool_cmd *ecmd)
1864 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
1865 rocker_cmd_set_port_settings_ethtool_prep,
1869 static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
1870 unsigned char *macaddr)
1872 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
1873 rocker_cmd_set_port_settings_macaddr_prep,
1874 macaddr, NULL, NULL);
1877 static int rocker_port_set_learning(struct rocker_port *rocker_port,
1878 enum switchdev_trans trans)
1880 return rocker_cmd_exec(rocker_port, trans, 0,
1881 rocker_cmd_set_port_learning_prep,
1886 rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info,
1887 const struct rocker_flow_tbl_entry *entry)
1889 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1890 entry->key.ig_port.in_pport))
1892 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1893 entry->key.ig_port.in_pport_mask))
1895 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1896 entry->key.ig_port.goto_tbl))
1903 rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info,
1904 const struct rocker_flow_tbl_entry *entry)
1906 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1907 entry->key.vlan.in_pport))
1909 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1910 entry->key.vlan.vlan_id))
1912 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1913 entry->key.vlan.vlan_id_mask))
1915 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1916 entry->key.vlan.goto_tbl))
1918 if (entry->key.vlan.untagged &&
1919 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID,
1920 entry->key.vlan.new_vlan_id))
1927 rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info,
1928 const struct rocker_flow_tbl_entry *entry)
1930 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1931 entry->key.term_mac.in_pport))
1933 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1934 entry->key.term_mac.in_pport_mask))
1936 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1937 entry->key.term_mac.eth_type))
1939 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1940 ETH_ALEN, entry->key.term_mac.eth_dst))
1942 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1943 ETH_ALEN, entry->key.term_mac.eth_dst_mask))
1945 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1946 entry->key.term_mac.vlan_id))
1948 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1949 entry->key.term_mac.vlan_id_mask))
1951 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1952 entry->key.term_mac.goto_tbl))
1954 if (entry->key.term_mac.copy_to_cpu &&
1955 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
1956 entry->key.term_mac.copy_to_cpu))
1963 rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info,
1964 const struct rocker_flow_tbl_entry *entry)
1966 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1967 entry->key.ucast_routing.eth_type))
1969 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP,
1970 entry->key.ucast_routing.dst4))
1972 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK,
1973 entry->key.ucast_routing.dst4_mask))
1975 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1976 entry->key.ucast_routing.goto_tbl))
1978 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
1979 entry->key.ucast_routing.group_id))
1986 rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info,
1987 const struct rocker_flow_tbl_entry *entry)
1989 if (entry->key.bridge.has_eth_dst &&
1990 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1991 ETH_ALEN, entry->key.bridge.eth_dst))
1993 if (entry->key.bridge.has_eth_dst_mask &&
1994 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1995 ETH_ALEN, entry->key.bridge.eth_dst_mask))
1997 if (entry->key.bridge.vlan_id &&
1998 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1999 entry->key.bridge.vlan_id))
2001 if (entry->key.bridge.tunnel_id &&
2002 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID,
2003 entry->key.bridge.tunnel_id))
2005 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
2006 entry->key.bridge.goto_tbl))
2008 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2009 entry->key.bridge.group_id))
2011 if (entry->key.bridge.copy_to_cpu &&
2012 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
2013 entry->key.bridge.copy_to_cpu))
2020 rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info,
2021 const struct rocker_flow_tbl_entry *entry)
2023 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
2024 entry->key.acl.in_pport))
2026 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
2027 entry->key.acl.in_pport_mask))
2029 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2030 ETH_ALEN, entry->key.acl.eth_src))
2032 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK,
2033 ETH_ALEN, entry->key.acl.eth_src_mask))
2035 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2036 ETH_ALEN, entry->key.acl.eth_dst))
2038 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
2039 ETH_ALEN, entry->key.acl.eth_dst_mask))
2041 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
2042 entry->key.acl.eth_type))
2044 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2045 entry->key.acl.vlan_id))
2047 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
2048 entry->key.acl.vlan_id_mask))
2051 switch (ntohs(entry->key.acl.eth_type)) {
2054 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO,
2055 entry->key.acl.ip_proto))
2057 if (rocker_tlv_put_u8(desc_info,
2058 ROCKER_TLV_OF_DPA_IP_PROTO_MASK,
2059 entry->key.acl.ip_proto_mask))
2061 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP,
2062 entry->key.acl.ip_tos & 0x3f))
2064 if (rocker_tlv_put_u8(desc_info,
2065 ROCKER_TLV_OF_DPA_IP_DSCP_MASK,
2066 entry->key.acl.ip_tos_mask & 0x3f))
2068 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN,
2069 (entry->key.acl.ip_tos & 0xc0) >> 6))
2071 if (rocker_tlv_put_u8(desc_info,
2072 ROCKER_TLV_OF_DPA_IP_ECN_MASK,
2073 (entry->key.acl.ip_tos_mask & 0xc0) >> 6))
2078 if (entry->key.acl.group_id != ROCKER_GROUP_NONE &&
2079 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2080 entry->key.acl.group_id))
2086 static int rocker_cmd_flow_tbl_add(const struct rocker_port *rocker_port,
2087 struct rocker_desc_info *desc_info,
2090 const struct rocker_flow_tbl_entry *entry = priv;
2091 struct rocker_tlv *cmd_info;
2094 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2096 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2099 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID,
2102 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY,
2103 entry->key.priority))
2105 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0))
2107 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2111 switch (entry->key.tbl_id) {
2112 case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT:
2113 err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry);
2115 case ROCKER_OF_DPA_TABLE_ID_VLAN:
2116 err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry);
2118 case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC:
2119 err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry);
2121 case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING:
2122 err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry);
2124 case ROCKER_OF_DPA_TABLE_ID_BRIDGING:
2125 err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry);
2127 case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY:
2128 err = rocker_cmd_flow_tbl_add_acl(desc_info, entry);
2138 rocker_tlv_nest_end(desc_info, cmd_info);
2143 static int rocker_cmd_flow_tbl_del(const struct rocker_port *rocker_port,
2144 struct rocker_desc_info *desc_info,
2147 const struct rocker_flow_tbl_entry *entry = priv;
2148 struct rocker_tlv *cmd_info;
2150 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2152 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2155 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2158 rocker_tlv_nest_end(desc_info, cmd_info);
2164 rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info,
2165 struct rocker_group_tbl_entry *entry)
2167 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT,
2168 ROCKER_GROUP_PORT_GET(entry->group_id)))
2170 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN,
2171 entry->l2_interface.pop_vlan))
2178 rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info,
2179 const struct rocker_group_tbl_entry *entry)
2181 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2182 entry->l2_rewrite.group_id))
2184 if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) &&
2185 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2186 ETH_ALEN, entry->l2_rewrite.eth_src))
2188 if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) &&
2189 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2190 ETH_ALEN, entry->l2_rewrite.eth_dst))
2192 if (entry->l2_rewrite.vlan_id &&
2193 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2194 entry->l2_rewrite.vlan_id))
2201 rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info,
2202 const struct rocker_group_tbl_entry *entry)
2205 struct rocker_tlv *group_ids;
2207 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT,
2208 entry->group_count))
2211 group_ids = rocker_tlv_nest_start(desc_info,
2212 ROCKER_TLV_OF_DPA_GROUP_IDS);
2216 for (i = 0; i < entry->group_count; i++)
2217 /* Note TLV array is 1-based */
2218 if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i]))
2221 rocker_tlv_nest_end(desc_info, group_ids);
2227 rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info,
2228 const struct rocker_group_tbl_entry *entry)
2230 if (!is_zero_ether_addr(entry->l3_unicast.eth_src) &&
2231 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2232 ETH_ALEN, entry->l3_unicast.eth_src))
2234 if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) &&
2235 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2236 ETH_ALEN, entry->l3_unicast.eth_dst))
2238 if (entry->l3_unicast.vlan_id &&
2239 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2240 entry->l3_unicast.vlan_id))
2242 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK,
2243 entry->l3_unicast.ttl_check))
2245 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2246 entry->l3_unicast.group_id))
2252 static int rocker_cmd_group_tbl_add(const struct rocker_port *rocker_port,
2253 struct rocker_desc_info *desc_info,
2256 struct rocker_group_tbl_entry *entry = priv;
2257 struct rocker_tlv *cmd_info;
2260 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2262 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2266 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2270 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2271 case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE:
2272 err = rocker_cmd_group_tbl_add_l2_interface(desc_info, entry);
2274 case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE:
2275 err = rocker_cmd_group_tbl_add_l2_rewrite(desc_info, entry);
2277 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2278 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
2279 err = rocker_cmd_group_tbl_add_group_ids(desc_info, entry);
2281 case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST:
2282 err = rocker_cmd_group_tbl_add_l3_unicast(desc_info, entry);
2292 rocker_tlv_nest_end(desc_info, cmd_info);
2297 static int rocker_cmd_group_tbl_del(const struct rocker_port *rocker_port,
2298 struct rocker_desc_info *desc_info,
2301 const struct rocker_group_tbl_entry *entry = priv;
2302 struct rocker_tlv *cmd_info;
2304 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2306 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2309 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2312 rocker_tlv_nest_end(desc_info, cmd_info);
2317 /***************************************************
2318 * Flow, group, FDB, internal VLAN and neigh tables
2319 ***************************************************/
2321 static int rocker_init_tbls(struct rocker *rocker)
2323 hash_init(rocker->flow_tbl);
2324 spin_lock_init(&rocker->flow_tbl_lock);
2326 hash_init(rocker->group_tbl);
2327 spin_lock_init(&rocker->group_tbl_lock);
2329 hash_init(rocker->fdb_tbl);
2330 spin_lock_init(&rocker->fdb_tbl_lock);
2332 hash_init(rocker->internal_vlan_tbl);
2333 spin_lock_init(&rocker->internal_vlan_tbl_lock);
2335 hash_init(rocker->neigh_tbl);
2336 spin_lock_init(&rocker->neigh_tbl_lock);
2341 static void rocker_free_tbls(struct rocker *rocker)
2343 unsigned long flags;
2344 struct rocker_flow_tbl_entry *flow_entry;
2345 struct rocker_group_tbl_entry *group_entry;
2346 struct rocker_fdb_tbl_entry *fdb_entry;
2347 struct rocker_internal_vlan_tbl_entry *internal_vlan_entry;
2348 struct rocker_neigh_tbl_entry *neigh_entry;
2349 struct hlist_node *tmp;
2352 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2353 hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry)
2354 hash_del(&flow_entry->entry);
2355 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2357 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2358 hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry)
2359 hash_del(&group_entry->entry);
2360 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2362 spin_lock_irqsave(&rocker->fdb_tbl_lock, flags);
2363 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry)
2364 hash_del(&fdb_entry->entry);
2365 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags);
2367 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags);
2368 hash_for_each_safe(rocker->internal_vlan_tbl, bkt,
2369 tmp, internal_vlan_entry, entry)
2370 hash_del(&internal_vlan_entry->entry);
2371 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags);
2373 spin_lock_irqsave(&rocker->neigh_tbl_lock, flags);
2374 hash_for_each_safe(rocker->neigh_tbl, bkt, tmp, neigh_entry, entry)
2375 hash_del(&neigh_entry->entry);
2376 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, flags);
2379 static struct rocker_flow_tbl_entry *
2380 rocker_flow_tbl_find(const struct rocker *rocker,
2381 const struct rocker_flow_tbl_entry *match)
2383 struct rocker_flow_tbl_entry *found;
2384 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
2386 hash_for_each_possible(rocker->flow_tbl, found,
2387 entry, match->key_crc32) {
2388 if (memcmp(&found->key, &match->key, key_len) == 0)
2395 static int rocker_flow_tbl_add(struct rocker_port *rocker_port,
2396 enum switchdev_trans trans, int flags,
2397 struct rocker_flow_tbl_entry *match)
2399 struct rocker *rocker = rocker_port->rocker;
2400 struct rocker_flow_tbl_entry *found;
2401 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
2402 unsigned long lock_flags;
2404 match->key_crc32 = crc32(~0, &match->key, key_len);
2406 spin_lock_irqsave(&rocker->flow_tbl_lock, lock_flags);
2408 found = rocker_flow_tbl_find(rocker, match);
2411 match->cookie = found->cookie;
2412 if (trans != SWITCHDEV_TRANS_PREPARE)
2413 hash_del(&found->entry);
2414 rocker_port_kfree(trans, found);
2416 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD;
2419 found->cookie = rocker->flow_tbl_next_cookie++;
2420 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD;
2423 if (trans != SWITCHDEV_TRANS_PREPARE)
2424 hash_add(rocker->flow_tbl, &found->entry, found->key_crc32);
2426 spin_unlock_irqrestore(&rocker->flow_tbl_lock, lock_flags);
2428 return rocker_cmd_exec(rocker_port, trans, flags,
2429 rocker_cmd_flow_tbl_add, found, NULL, NULL);
2432 static int rocker_flow_tbl_del(struct rocker_port *rocker_port,
2433 enum switchdev_trans trans, int flags,
2434 struct rocker_flow_tbl_entry *match)
2436 struct rocker *rocker = rocker_port->rocker;
2437 struct rocker_flow_tbl_entry *found;
2438 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
2439 unsigned long lock_flags;
2442 match->key_crc32 = crc32(~0, &match->key, key_len);
2444 spin_lock_irqsave(&rocker->flow_tbl_lock, lock_flags);
2446 found = rocker_flow_tbl_find(rocker, match);
2449 if (trans != SWITCHDEV_TRANS_PREPARE)
2450 hash_del(&found->entry);
2451 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL;
2454 spin_unlock_irqrestore(&rocker->flow_tbl_lock, lock_flags);
2456 rocker_port_kfree(trans, match);
2459 err = rocker_cmd_exec(rocker_port, trans, flags,
2460 rocker_cmd_flow_tbl_del,
2462 rocker_port_kfree(trans, found);
2468 static int rocker_flow_tbl_do(struct rocker_port *rocker_port,
2469 enum switchdev_trans trans, int flags,
2470 struct rocker_flow_tbl_entry *entry)
2472 if (flags & ROCKER_OP_FLAG_REMOVE)
2473 return rocker_flow_tbl_del(rocker_port, trans, flags, entry);
2475 return rocker_flow_tbl_add(rocker_port, trans, flags, entry);
2478 static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port,
2479 enum switchdev_trans trans, int flags,
2480 u32 in_pport, u32 in_pport_mask,
2481 enum rocker_of_dpa_table_id goto_tbl)
2483 struct rocker_flow_tbl_entry *entry;
2485 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2489 entry->key.priority = ROCKER_PRIORITY_IG_PORT;
2490 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT;
2491 entry->key.ig_port.in_pport = in_pport;
2492 entry->key.ig_port.in_pport_mask = in_pport_mask;
2493 entry->key.ig_port.goto_tbl = goto_tbl;
2495 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
2498 static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port,
2499 enum switchdev_trans trans, int flags,
2500 u32 in_pport, __be16 vlan_id,
2501 __be16 vlan_id_mask,
2502 enum rocker_of_dpa_table_id goto_tbl,
2503 bool untagged, __be16 new_vlan_id)
2505 struct rocker_flow_tbl_entry *entry;
2507 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2511 entry->key.priority = ROCKER_PRIORITY_VLAN;
2512 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN;
2513 entry->key.vlan.in_pport = in_pport;
2514 entry->key.vlan.vlan_id = vlan_id;
2515 entry->key.vlan.vlan_id_mask = vlan_id_mask;
2516 entry->key.vlan.goto_tbl = goto_tbl;
2518 entry->key.vlan.untagged = untagged;
2519 entry->key.vlan.new_vlan_id = new_vlan_id;
2521 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
2524 static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port,
2525 enum switchdev_trans trans,
2526 u32 in_pport, u32 in_pport_mask,
2527 __be16 eth_type, const u8 *eth_dst,
2528 const u8 *eth_dst_mask, __be16 vlan_id,
2529 __be16 vlan_id_mask, bool copy_to_cpu,
2532 struct rocker_flow_tbl_entry *entry;
2534 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2538 if (is_multicast_ether_addr(eth_dst)) {
2539 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST;
2540 entry->key.term_mac.goto_tbl =
2541 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING;
2543 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST;
2544 entry->key.term_mac.goto_tbl =
2545 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2548 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
2549 entry->key.term_mac.in_pport = in_pport;
2550 entry->key.term_mac.in_pport_mask = in_pport_mask;
2551 entry->key.term_mac.eth_type = eth_type;
2552 ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst);
2553 ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask);
2554 entry->key.term_mac.vlan_id = vlan_id;
2555 entry->key.term_mac.vlan_id_mask = vlan_id_mask;
2556 entry->key.term_mac.copy_to_cpu = copy_to_cpu;
2558 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
2561 static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port,
2562 enum switchdev_trans trans, int flags,
2563 const u8 *eth_dst, const u8 *eth_dst_mask,
2564 __be16 vlan_id, u32 tunnel_id,
2565 enum rocker_of_dpa_table_id goto_tbl,
2566 u32 group_id, bool copy_to_cpu)
2568 struct rocker_flow_tbl_entry *entry;
2570 bool vlan_bridging = !!vlan_id;
2571 bool dflt = !eth_dst || (eth_dst && eth_dst_mask);
2574 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2578 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING;
2581 entry->key.bridge.has_eth_dst = 1;
2582 ether_addr_copy(entry->key.bridge.eth_dst, eth_dst);
2585 entry->key.bridge.has_eth_dst_mask = 1;
2586 ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask);
2587 if (!ether_addr_equal(eth_dst_mask, ff_mac))
2591 priority = ROCKER_PRIORITY_UNKNOWN;
2592 if (vlan_bridging && dflt && wild)
2593 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD;
2594 else if (vlan_bridging && dflt && !wild)
2595 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT;
2596 else if (vlan_bridging && !dflt)
2597 priority = ROCKER_PRIORITY_BRIDGING_VLAN;
2598 else if (!vlan_bridging && dflt && wild)
2599 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD;
2600 else if (!vlan_bridging && dflt && !wild)
2601 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT;
2602 else if (!vlan_bridging && !dflt)
2603 priority = ROCKER_PRIORITY_BRIDGING_TENANT;
2605 entry->key.priority = priority;
2606 entry->key.bridge.vlan_id = vlan_id;
2607 entry->key.bridge.tunnel_id = tunnel_id;
2608 entry->key.bridge.goto_tbl = goto_tbl;
2609 entry->key.bridge.group_id = group_id;
2610 entry->key.bridge.copy_to_cpu = copy_to_cpu;
2612 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
2615 static int rocker_flow_tbl_ucast4_routing(struct rocker_port *rocker_port,
2616 enum switchdev_trans trans,
2617 __be16 eth_type, __be32 dst,
2618 __be32 dst_mask, u32 priority,
2619 enum rocker_of_dpa_table_id goto_tbl,
2620 u32 group_id, int flags)
2622 struct rocker_flow_tbl_entry *entry;
2624 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2628 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2629 entry->key.priority = priority;
2630 entry->key.ucast_routing.eth_type = eth_type;
2631 entry->key.ucast_routing.dst4 = dst;
2632 entry->key.ucast_routing.dst4_mask = dst_mask;
2633 entry->key.ucast_routing.goto_tbl = goto_tbl;
2634 entry->key.ucast_routing.group_id = group_id;
2635 entry->key_len = offsetof(struct rocker_flow_tbl_key,
2636 ucast_routing.group_id);
2638 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
2641 static int rocker_flow_tbl_acl(struct rocker_port *rocker_port,
2642 enum switchdev_trans trans, int flags,
2643 u32 in_pport, u32 in_pport_mask,
2644 const u8 *eth_src, const u8 *eth_src_mask,
2645 const u8 *eth_dst, const u8 *eth_dst_mask,
2646 __be16 eth_type, __be16 vlan_id,
2647 __be16 vlan_id_mask, u8 ip_proto,
2648 u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask,
2652 struct rocker_flow_tbl_entry *entry;
2654 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2658 priority = ROCKER_PRIORITY_ACL_NORMAL;
2659 if (eth_dst && eth_dst_mask) {
2660 if (ether_addr_equal(eth_dst_mask, mcast_mac))
2661 priority = ROCKER_PRIORITY_ACL_DFLT;
2662 else if (is_link_local_ether_addr(eth_dst))
2663 priority = ROCKER_PRIORITY_ACL_CTRL;
2666 entry->key.priority = priority;
2667 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2668 entry->key.acl.in_pport = in_pport;
2669 entry->key.acl.in_pport_mask = in_pport_mask;
2672 ether_addr_copy(entry->key.acl.eth_src, eth_src);
2674 ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask);
2676 ether_addr_copy(entry->key.acl.eth_dst, eth_dst);
2678 ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask);
2680 entry->key.acl.eth_type = eth_type;
2681 entry->key.acl.vlan_id = vlan_id;
2682 entry->key.acl.vlan_id_mask = vlan_id_mask;
2683 entry->key.acl.ip_proto = ip_proto;
2684 entry->key.acl.ip_proto_mask = ip_proto_mask;
2685 entry->key.acl.ip_tos = ip_tos;
2686 entry->key.acl.ip_tos_mask = ip_tos_mask;
2687 entry->key.acl.group_id = group_id;
2689 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
2692 static struct rocker_group_tbl_entry *
2693 rocker_group_tbl_find(const struct rocker *rocker,
2694 const struct rocker_group_tbl_entry *match)
2696 struct rocker_group_tbl_entry *found;
2698 hash_for_each_possible(rocker->group_tbl, found,
2699 entry, match->group_id) {
2700 if (found->group_id == match->group_id)
2707 static void rocker_group_tbl_entry_free(enum switchdev_trans trans,
2708 struct rocker_group_tbl_entry *entry)
2710 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2711 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2712 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
2713 rocker_port_kfree(trans, entry->group_ids);
2718 rocker_port_kfree(trans, entry);
2721 static int rocker_group_tbl_add(struct rocker_port *rocker_port,
2722 enum switchdev_trans trans, int flags,
2723 struct rocker_group_tbl_entry *match)
2725 struct rocker *rocker = rocker_port->rocker;
2726 struct rocker_group_tbl_entry *found;
2727 unsigned long lock_flags;
2729 spin_lock_irqsave(&rocker->group_tbl_lock, lock_flags);
2731 found = rocker_group_tbl_find(rocker, match);
2734 if (trans != SWITCHDEV_TRANS_PREPARE)
2735 hash_del(&found->entry);
2736 rocker_group_tbl_entry_free(trans, found);
2738 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD;
2741 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD;
2744 if (trans != SWITCHDEV_TRANS_PREPARE)
2745 hash_add(rocker->group_tbl, &found->entry, found->group_id);
2747 spin_unlock_irqrestore(&rocker->group_tbl_lock, lock_flags);
2749 return rocker_cmd_exec(rocker_port, trans, flags,
2750 rocker_cmd_group_tbl_add, found, NULL, NULL);
2753 static int rocker_group_tbl_del(struct rocker_port *rocker_port,
2754 enum switchdev_trans trans, int flags,
2755 struct rocker_group_tbl_entry *match)
2757 struct rocker *rocker = rocker_port->rocker;
2758 struct rocker_group_tbl_entry *found;
2759 unsigned long lock_flags;
2762 spin_lock_irqsave(&rocker->group_tbl_lock, lock_flags);
2764 found = rocker_group_tbl_find(rocker, match);
2767 if (trans != SWITCHDEV_TRANS_PREPARE)
2768 hash_del(&found->entry);
2769 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL;
2772 spin_unlock_irqrestore(&rocker->group_tbl_lock, lock_flags);
2774 rocker_group_tbl_entry_free(trans, match);
2777 err = rocker_cmd_exec(rocker_port, trans, flags,
2778 rocker_cmd_group_tbl_del,
2780 rocker_group_tbl_entry_free(trans, found);
2786 static int rocker_group_tbl_do(struct rocker_port *rocker_port,
2787 enum switchdev_trans trans, int flags,
2788 struct rocker_group_tbl_entry *entry)
2790 if (flags & ROCKER_OP_FLAG_REMOVE)
2791 return rocker_group_tbl_del(rocker_port, trans, flags, entry);
2793 return rocker_group_tbl_add(rocker_port, trans, flags, entry);
2796 static int rocker_group_l2_interface(struct rocker_port *rocker_port,
2797 enum switchdev_trans trans, int flags,
2798 __be16 vlan_id, u32 out_pport,
2801 struct rocker_group_tbl_entry *entry;
2803 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2807 entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
2808 entry->l2_interface.pop_vlan = pop_vlan;
2810 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
2813 static int rocker_group_l2_fan_out(struct rocker_port *rocker_port,
2814 enum switchdev_trans trans,
2815 int flags, u8 group_count,
2816 const u32 *group_ids, u32 group_id)
2818 struct rocker_group_tbl_entry *entry;
2820 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2824 entry->group_id = group_id;
2825 entry->group_count = group_count;
2827 entry->group_ids = rocker_port_kcalloc(rocker_port, trans, flags,
2828 group_count, sizeof(u32));
2829 if (!entry->group_ids) {
2830 rocker_port_kfree(trans, entry);
2833 memcpy(entry->group_ids, group_ids, group_count * sizeof(u32));
2835 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
2838 static int rocker_group_l2_flood(struct rocker_port *rocker_port,
2839 enum switchdev_trans trans, int flags,
2840 __be16 vlan_id, u8 group_count,
2841 const u32 *group_ids, u32 group_id)
2843 return rocker_group_l2_fan_out(rocker_port, trans, flags,
2844 group_count, group_ids,
2848 static int rocker_group_l3_unicast(struct rocker_port *rocker_port,
2849 enum switchdev_trans trans, int flags,
2850 u32 index, const u8 *src_mac, const u8 *dst_mac,
2851 __be16 vlan_id, bool ttl_check, u32 pport)
2853 struct rocker_group_tbl_entry *entry;
2855 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2859 entry->group_id = ROCKER_GROUP_L3_UNICAST(index);
2861 ether_addr_copy(entry->l3_unicast.eth_src, src_mac);
2863 ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac);
2864 entry->l3_unicast.vlan_id = vlan_id;
2865 entry->l3_unicast.ttl_check = ttl_check;
2866 entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport);
2868 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
2871 static struct rocker_neigh_tbl_entry *
2872 rocker_neigh_tbl_find(const struct rocker *rocker, __be32 ip_addr)
2874 struct rocker_neigh_tbl_entry *found;
2876 hash_for_each_possible(rocker->neigh_tbl, found,
2877 entry, be32_to_cpu(ip_addr))
2878 if (found->ip_addr == ip_addr)
2884 static void _rocker_neigh_add(struct rocker *rocker,
2885 enum switchdev_trans trans,
2886 struct rocker_neigh_tbl_entry *entry)
2888 if (trans != SWITCHDEV_TRANS_COMMIT)
2889 entry->index = rocker->neigh_tbl_next_index++;
2890 if (trans == SWITCHDEV_TRANS_PREPARE)
2893 hash_add(rocker->neigh_tbl, &entry->entry,
2894 be32_to_cpu(entry->ip_addr));
2897 static void _rocker_neigh_del(enum switchdev_trans trans,
2898 struct rocker_neigh_tbl_entry *entry)
2900 if (trans == SWITCHDEV_TRANS_PREPARE)
2902 if (--entry->ref_count == 0) {
2903 hash_del(&entry->entry);
2904 rocker_port_kfree(trans, entry);
2908 static void _rocker_neigh_update(struct rocker_neigh_tbl_entry *entry,
2909 enum switchdev_trans trans,
2910 const u8 *eth_dst, bool ttl_check)
2913 ether_addr_copy(entry->eth_dst, eth_dst);
2914 entry->ttl_check = ttl_check;
2915 } else if (trans != SWITCHDEV_TRANS_PREPARE) {
2920 static int rocker_port_ipv4_neigh(struct rocker_port *rocker_port,
2921 enum switchdev_trans trans,
2922 int flags, __be32 ip_addr, const u8 *eth_dst)
2924 struct rocker *rocker = rocker_port->rocker;
2925 struct rocker_neigh_tbl_entry *entry;
2926 struct rocker_neigh_tbl_entry *found;
2927 unsigned long lock_flags;
2928 __be16 eth_type = htons(ETH_P_IP);
2929 enum rocker_of_dpa_table_id goto_tbl =
2930 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2933 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
2938 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
2942 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
2944 found = rocker_neigh_tbl_find(rocker, ip_addr);
2946 updating = found && adding;
2947 removing = found && !adding;
2948 adding = !found && adding;
2951 entry->ip_addr = ip_addr;
2952 entry->dev = rocker_port->dev;
2953 ether_addr_copy(entry->eth_dst, eth_dst);
2954 entry->ttl_check = true;
2955 _rocker_neigh_add(rocker, trans, entry);
2956 } else if (removing) {
2957 memcpy(entry, found, sizeof(*entry));
2958 _rocker_neigh_del(trans, found);
2959 } else if (updating) {
2960 _rocker_neigh_update(found, trans, eth_dst, true);
2961 memcpy(entry, found, sizeof(*entry));
2966 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
2971 /* For each active neighbor, we have an L3 unicast group and
2972 * a /32 route to the neighbor, which uses the L3 unicast
2973 * group. The L3 unicast group can also be referred to by
2974 * other routes' nexthops.
2977 err = rocker_group_l3_unicast(rocker_port, trans, flags,
2979 rocker_port->dev->dev_addr,
2981 rocker_port->internal_vlan_id,
2983 rocker_port->pport);
2985 netdev_err(rocker_port->dev,
2986 "Error (%d) L3 unicast group index %d\n",
2991 if (adding || removing) {
2992 group_id = ROCKER_GROUP_L3_UNICAST(entry->index);
2993 err = rocker_flow_tbl_ucast4_routing(rocker_port, trans,
3000 netdev_err(rocker_port->dev,
3001 "Error (%d) /32 unicast route %pI4 group 0x%08x\n",
3002 err, &entry->ip_addr, group_id);
3007 rocker_port_kfree(trans, entry);
3012 static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port,
3013 enum switchdev_trans trans, __be32 ip_addr)
3015 struct net_device *dev = rocker_port->dev;
3016 struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr);
3020 n = neigh_create(&arp_tbl, &ip_addr, dev);
3025 /* If the neigh is already resolved, then go ahead and
3026 * install the entry, otherwise start the ARP process to
3027 * resolve the neigh.
3030 if (n->nud_state & NUD_VALID)
3031 err = rocker_port_ipv4_neigh(rocker_port, trans, 0,
3034 neigh_event_send(n, NULL);
3040 static int rocker_port_ipv4_nh(struct rocker_port *rocker_port,
3041 enum switchdev_trans trans, int flags,
3042 __be32 ip_addr, u32 *index)
3044 struct rocker *rocker = rocker_port->rocker;
3045 struct rocker_neigh_tbl_entry *entry;
3046 struct rocker_neigh_tbl_entry *found;
3047 unsigned long lock_flags;
3048 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3051 bool resolved = true;
3054 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
3058 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
3060 found = rocker_neigh_tbl_find(rocker, ip_addr);
3062 *index = found->index;
3064 updating = found && adding;
3065 removing = found && !adding;
3066 adding = !found && adding;
3069 entry->ip_addr = ip_addr;
3070 entry->dev = rocker_port->dev;
3071 _rocker_neigh_add(rocker, trans, entry);
3072 *index = entry->index;
3074 } else if (removing) {
3075 _rocker_neigh_del(trans, found);
3076 } else if (updating) {
3077 _rocker_neigh_update(found, trans, NULL, false);
3078 resolved = !is_zero_ether_addr(found->eth_dst);
3083 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
3086 rocker_port_kfree(trans, entry);
3091 /* Resolved means neigh ip_addr is resolved to neigh mac. */
3094 err = rocker_port_ipv4_resolve(rocker_port, trans, ip_addr);
3099 static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port,
3100 enum switchdev_trans trans,
3101 int flags, __be16 vlan_id)
3103 struct rocker_port *p;
3104 const struct rocker *rocker = rocker_port->rocker;
3105 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
3111 group_ids = rocker_port_kcalloc(rocker_port, trans, flags,
3112 rocker->port_count, sizeof(u32));
3116 /* Adjust the flood group for this VLAN. The flood group
3117 * references an L2 interface group for each port in this
3121 for (i = 0; i < rocker->port_count; i++) {
3122 p = rocker->ports[i];
3125 if (!rocker_port_is_bridged(p))
3127 if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) {
3128 group_ids[group_count++] =
3129 ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport);
3133 /* If there are no bridged ports in this VLAN, we're done */
3134 if (group_count == 0)
3135 goto no_ports_in_vlan;
3137 err = rocker_group_l2_flood(rocker_port, trans, flags, vlan_id,
3138 group_count, group_ids, group_id);
3140 netdev_err(rocker_port->dev,
3141 "Error (%d) port VLAN l2 flood group\n", err);
3144 rocker_port_kfree(trans, group_ids);
3148 static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port,
3149 enum switchdev_trans trans, int flags,
3150 __be16 vlan_id, bool pop_vlan)
3152 const struct rocker *rocker = rocker_port->rocker;
3153 struct rocker_port *p;
3154 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3160 /* An L2 interface group for this port in this VLAN, but
3161 * only when port STP state is LEARNING|FORWARDING.
3164 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3165 rocker_port->stp_state == BR_STATE_FORWARDING) {
3166 out_pport = rocker_port->pport;
3167 err = rocker_group_l2_interface(rocker_port, trans, flags,
3168 vlan_id, out_pport, pop_vlan);
3170 netdev_err(rocker_port->dev,
3171 "Error (%d) port VLAN l2 group for pport %d\n",
3177 /* An L2 interface group for this VLAN to CPU port.
3178 * Add when first port joins this VLAN and destroy when
3179 * last port leaves this VLAN.
3182 for (i = 0; i < rocker->port_count; i++) {
3183 p = rocker->ports[i];
3184 if (p && test_bit(ntohs(vlan_id), p->vlan_bitmap))
3188 if ((!adding || ref != 1) && (adding || ref != 0))
3192 err = rocker_group_l2_interface(rocker_port, trans, flags,
3193 vlan_id, out_pport, pop_vlan);
3195 netdev_err(rocker_port->dev,
3196 "Error (%d) port VLAN l2 group for CPU port\n", err);
3203 static struct rocker_ctrl {
3205 const u8 *eth_dst_mask;
3211 } rocker_ctrls[] = {
3212 [ROCKER_CTRL_LINK_LOCAL_MCAST] = {
3213 /* pass link local multicast pkts up to CPU for filtering */
3215 .eth_dst_mask = ll_mask,
3218 [ROCKER_CTRL_LOCAL_ARP] = {
3219 /* pass local ARP pkts up to CPU */
3220 .eth_dst = zero_mac,
3221 .eth_dst_mask = zero_mac,
3222 .eth_type = htons(ETH_P_ARP),
3225 [ROCKER_CTRL_IPV4_MCAST] = {
3226 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
3227 .eth_dst = ipv4_mcast,
3228 .eth_dst_mask = ipv4_mask,
3229 .eth_type = htons(ETH_P_IP),
3231 .copy_to_cpu = true,
3233 [ROCKER_CTRL_IPV6_MCAST] = {
3234 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
3235 .eth_dst = ipv6_mcast,
3236 .eth_dst_mask = ipv6_mask,
3237 .eth_type = htons(ETH_P_IPV6),
3239 .copy_to_cpu = true,
3241 [ROCKER_CTRL_DFLT_BRIDGING] = {
3242 /* flood any pkts on vlan */
3244 .copy_to_cpu = true,
3248 static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port,
3249 enum switchdev_trans trans, int flags,
3250 const struct rocker_ctrl *ctrl, __be16 vlan_id)
3252 u32 in_pport = rocker_port->pport;
3253 u32 in_pport_mask = 0xffffffff;
3255 const u8 *eth_src = NULL;
3256 const u8 *eth_src_mask = NULL;
3257 __be16 vlan_id_mask = htons(0xffff);
3259 u8 ip_proto_mask = 0;
3262 u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
3265 err = rocker_flow_tbl_acl(rocker_port, trans, flags,
3266 in_pport, in_pport_mask,
3267 eth_src, eth_src_mask,
3268 ctrl->eth_dst, ctrl->eth_dst_mask,
3270 vlan_id, vlan_id_mask,
3271 ip_proto, ip_proto_mask,
3272 ip_tos, ip_tos_mask,
3276 netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err);
3281 static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port,
3282 enum switchdev_trans trans, int flags,
3283 const struct rocker_ctrl *ctrl,
3286 enum rocker_of_dpa_table_id goto_tbl =
3287 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3288 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
3292 if (!rocker_port_is_bridged(rocker_port))
3295 err = rocker_flow_tbl_bridge(rocker_port, trans, flags,
3296 ctrl->eth_dst, ctrl->eth_dst_mask,
3298 goto_tbl, group_id, ctrl->copy_to_cpu);
3301 netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err);
3306 static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port,
3307 enum switchdev_trans trans, int flags,
3308 const struct rocker_ctrl *ctrl, __be16 vlan_id)
3310 u32 in_pport_mask = 0xffffffff;
3311 __be16 vlan_id_mask = htons(0xffff);
3314 if (ntohs(vlan_id) == 0)
3315 vlan_id = rocker_port->internal_vlan_id;
3317 err = rocker_flow_tbl_term_mac(rocker_port, trans,
3318 rocker_port->pport, in_pport_mask,
3319 ctrl->eth_type, ctrl->eth_dst,
3320 ctrl->eth_dst_mask, vlan_id,
3321 vlan_id_mask, ctrl->copy_to_cpu,
3325 netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err);
3330 static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port,
3331 enum switchdev_trans trans, int flags,
3332 const struct rocker_ctrl *ctrl, __be16 vlan_id)
3335 return rocker_port_ctrl_vlan_acl(rocker_port, trans, flags,
3338 return rocker_port_ctrl_vlan_bridge(rocker_port, trans, flags,
3342 return rocker_port_ctrl_vlan_term(rocker_port, trans, flags,
3348 static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port,
3349 enum switchdev_trans trans, int flags,
3355 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3356 if (rocker_port->ctrls[i]) {
3357 err = rocker_port_ctrl_vlan(rocker_port, trans, flags,
3358 &rocker_ctrls[i], vlan_id);
3367 static int rocker_port_ctrl(struct rocker_port *rocker_port,
3368 enum switchdev_trans trans, int flags,
3369 const struct rocker_ctrl *ctrl)
3374 for (vid = 1; vid < VLAN_N_VID; vid++) {
3375 if (!test_bit(vid, rocker_port->vlan_bitmap))
3377 err = rocker_port_ctrl_vlan(rocker_port, trans, flags,
3386 static int rocker_port_vlan(struct rocker_port *rocker_port,
3387 enum switchdev_trans trans, int flags, u16 vid)
3389 enum rocker_of_dpa_table_id goto_tbl =
3390 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
3391 u32 in_pport = rocker_port->pport;
3392 __be16 vlan_id = htons(vid);
3393 __be16 vlan_id_mask = htons(0xffff);
3394 __be16 internal_vlan_id;
3396 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3399 internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged);
3401 if (adding && test_bit(ntohs(internal_vlan_id),
3402 rocker_port->vlan_bitmap))
3403 return 0; /* already added */
3404 else if (!adding && !test_bit(ntohs(internal_vlan_id),
3405 rocker_port->vlan_bitmap))
3406 return 0; /* already removed */
3408 change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap);
3411 err = rocker_port_ctrl_vlan_add(rocker_port, trans, flags,
3414 netdev_err(rocker_port->dev,
3415 "Error (%d) port ctrl vlan add\n", err);
3420 err = rocker_port_vlan_l2_groups(rocker_port, trans, flags,
3421 internal_vlan_id, untagged);
3423 netdev_err(rocker_port->dev,
3424 "Error (%d) port VLAN l2 groups\n", err);
3428 err = rocker_port_vlan_flood_group(rocker_port, trans, flags,
3431 netdev_err(rocker_port->dev,
3432 "Error (%d) port VLAN l2 flood group\n", err);
3436 err = rocker_flow_tbl_vlan(rocker_port, trans, flags,
3437 in_pport, vlan_id, vlan_id_mask,
3438 goto_tbl, untagged, internal_vlan_id);
3440 netdev_err(rocker_port->dev,
3441 "Error (%d) port VLAN table\n", err);
3444 if (trans == SWITCHDEV_TRANS_PREPARE)
3445 change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap);
3450 static int rocker_port_ig_tbl(struct rocker_port *rocker_port,
3451 enum switchdev_trans trans, int flags)
3453 enum rocker_of_dpa_table_id goto_tbl;
3458 /* Normal Ethernet Frames. Matches pkts from any local physical
3459 * ports. Goto VLAN tbl.
3463 in_pport_mask = 0xffff0000;
3464 goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
3466 err = rocker_flow_tbl_ig_port(rocker_port, trans, flags,
3467 in_pport, in_pport_mask,
3470 netdev_err(rocker_port->dev,
3471 "Error (%d) ingress port table entry\n", err);
3476 struct rocker_fdb_learn_work {
3477 struct work_struct work;
3478 struct rocker_port *rocker_port;
3479 enum switchdev_trans trans;
3485 static void rocker_port_fdb_learn_work(struct work_struct *work)
3487 const struct rocker_fdb_learn_work *lw =
3488 container_of(work, struct rocker_fdb_learn_work, work);
3489 bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE);
3490 bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED);
3491 struct switchdev_notifier_fdb_info info;
3493 info.addr = lw->addr;
3496 if (learned && removing)
3497 call_switchdev_notifiers(SWITCHDEV_FDB_DEL,
3498 lw->rocker_port->dev, &info.info);
3499 else if (learned && !removing)
3500 call_switchdev_notifiers(SWITCHDEV_FDB_ADD,
3501 lw->rocker_port->dev, &info.info);
3503 rocker_port_kfree(lw->trans, work);
3506 static int rocker_port_fdb_learn(struct rocker_port *rocker_port,
3507 enum switchdev_trans trans, int flags,
3508 const u8 *addr, __be16 vlan_id)
3510 struct rocker_fdb_learn_work *lw;
3511 enum rocker_of_dpa_table_id goto_tbl =
3512 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3513 u32 out_pport = rocker_port->pport;
3515 u32 group_id = ROCKER_GROUP_NONE;
3516 bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC);
3517 bool copy_to_cpu = false;
3520 if (rocker_port_is_bridged(rocker_port))
3521 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
3523 if (!(flags & ROCKER_OP_FLAG_REFRESH)) {
3524 err = rocker_flow_tbl_bridge(rocker_port, trans, flags, addr,
3525 NULL, vlan_id, tunnel_id, goto_tbl,
3526 group_id, copy_to_cpu);
3534 if (!rocker_port_is_bridged(rocker_port))
3537 lw = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*lw));
3541 INIT_WORK(&lw->work, rocker_port_fdb_learn_work);
3543 lw->rocker_port = rocker_port;
3546 ether_addr_copy(lw->addr, addr);
3547 lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id);
3549 if (trans == SWITCHDEV_TRANS_PREPARE)
3550 rocker_port_kfree(trans, lw);
3552 schedule_work(&lw->work);
3557 static struct rocker_fdb_tbl_entry *
3558 rocker_fdb_tbl_find(const struct rocker *rocker,
3559 const struct rocker_fdb_tbl_entry *match)
3561 struct rocker_fdb_tbl_entry *found;
3563 hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32)
3564 if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
3570 static int rocker_port_fdb(struct rocker_port *rocker_port,
3571 enum switchdev_trans trans,
3572 const unsigned char *addr,
3573 __be16 vlan_id, int flags)
3575 struct rocker *rocker = rocker_port->rocker;
3576 struct rocker_fdb_tbl_entry *fdb;
3577 struct rocker_fdb_tbl_entry *found;
3578 bool removing = (flags & ROCKER_OP_FLAG_REMOVE);
3579 unsigned long lock_flags;
3581 fdb = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*fdb));
3585 fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED);
3586 fdb->key.pport = rocker_port->pport;
3587 ether_addr_copy(fdb->key.addr, addr);
3588 fdb->key.vlan_id = vlan_id;
3589 fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key));
3591 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3593 found = rocker_fdb_tbl_find(rocker, fdb);
3595 if (removing && found) {
3596 rocker_port_kfree(trans, fdb);
3597 if (trans != SWITCHDEV_TRANS_PREPARE)
3598 hash_del(&found->entry);
3599 } else if (!removing && !found) {
3600 if (trans != SWITCHDEV_TRANS_PREPARE)
3601 hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32);
3604 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3606 /* Check if adding and already exists, or removing and can't find */
3607 if (!found != !removing) {
3608 rocker_port_kfree(trans, fdb);
3609 if (!found && removing)
3611 /* Refreshing existing to update aging timers */
3612 flags |= ROCKER_OP_FLAG_REFRESH;
3615 return rocker_port_fdb_learn(rocker_port, trans, flags, addr, vlan_id);
3618 static int rocker_port_fdb_flush(struct rocker_port *rocker_port,
3619 enum switchdev_trans trans, int flags)
3621 struct rocker *rocker = rocker_port->rocker;
3622 struct rocker_fdb_tbl_entry *found;
3623 unsigned long lock_flags;
3624 struct hlist_node *tmp;
3628 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3629 rocker_port->stp_state == BR_STATE_FORWARDING)
3632 flags |= ROCKER_OP_FLAG_REMOVE;
3634 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3636 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
3637 if (found->key.pport != rocker_port->pport)
3639 if (!found->learned)
3641 err = rocker_port_fdb_learn(rocker_port, trans, flags,
3643 found->key.vlan_id);
3646 if (trans != SWITCHDEV_TRANS_PREPARE)
3647 hash_del(&found->entry);
3651 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3656 static int rocker_port_router_mac(struct rocker_port *rocker_port,
3657 enum switchdev_trans trans, int flags,
3660 u32 in_pport_mask = 0xffffffff;
3662 const u8 *dst_mac_mask = ff_mac;
3663 __be16 vlan_id_mask = htons(0xffff);
3664 bool copy_to_cpu = false;
3667 if (ntohs(vlan_id) == 0)
3668 vlan_id = rocker_port->internal_vlan_id;
3670 eth_type = htons(ETH_P_IP);
3671 err = rocker_flow_tbl_term_mac(rocker_port, trans,
3672 rocker_port->pport, in_pport_mask,
3673 eth_type, rocker_port->dev->dev_addr,
3674 dst_mac_mask, vlan_id, vlan_id_mask,
3675 copy_to_cpu, flags);
3679 eth_type = htons(ETH_P_IPV6);
3680 err = rocker_flow_tbl_term_mac(rocker_port, trans,
3681 rocker_port->pport, in_pport_mask,
3682 eth_type, rocker_port->dev->dev_addr,
3683 dst_mac_mask, vlan_id, vlan_id_mask,
3684 copy_to_cpu, flags);
3689 static int rocker_port_fwding(struct rocker_port *rocker_port,
3690 enum switchdev_trans trans, int flags)
3698 /* Port will be forwarding-enabled if its STP state is LEARNING
3699 * or FORWARDING. Traffic from CPU can still egress, regardless of
3700 * port STP state. Use L2 interface group on port VLANs as a way
3701 * to toggle port forwarding: if forwarding is disabled, L2
3702 * interface group will not exist.
3705 if (rocker_port->stp_state != BR_STATE_LEARNING &&
3706 rocker_port->stp_state != BR_STATE_FORWARDING)
3707 flags |= ROCKER_OP_FLAG_REMOVE;
3709 out_pport = rocker_port->pport;
3710 for (vid = 1; vid < VLAN_N_VID; vid++) {
3711 if (!test_bit(vid, rocker_port->vlan_bitmap))
3713 vlan_id = htons(vid);
3714 pop_vlan = rocker_vlan_id_is_internal(vlan_id);
3715 err = rocker_group_l2_interface(rocker_port, trans, flags,
3716 vlan_id, out_pport, pop_vlan);
3718 netdev_err(rocker_port->dev,
3719 "Error (%d) port VLAN l2 group for pport %d\n",
3728 static int rocker_port_stp_update(struct rocker_port *rocker_port,
3729 enum switchdev_trans trans, int flags,
3732 bool want[ROCKER_CTRL_MAX] = { 0, };
3733 bool prev_ctrls[ROCKER_CTRL_MAX];
3738 if (trans == SWITCHDEV_TRANS_PREPARE) {
3739 memcpy(prev_ctrls, rocker_port->ctrls, sizeof(prev_ctrls));
3740 prev_state = rocker_port->stp_state;
3743 if (rocker_port->stp_state == state)
3746 rocker_port->stp_state = state;
3749 case BR_STATE_DISABLED:
3750 /* port is completely disabled */
3752 case BR_STATE_LISTENING:
3753 case BR_STATE_BLOCKING:
3754 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3756 case BR_STATE_LEARNING:
3757 case BR_STATE_FORWARDING:
3758 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3759 want[ROCKER_CTRL_IPV4_MCAST] = true;
3760 want[ROCKER_CTRL_IPV6_MCAST] = true;
3761 if (rocker_port_is_bridged(rocker_port))
3762 want[ROCKER_CTRL_DFLT_BRIDGING] = true;
3764 want[ROCKER_CTRL_LOCAL_ARP] = true;
3768 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3769 if (want[i] != rocker_port->ctrls[i]) {
3770 int ctrl_flags = flags |
3771 (want[i] ? 0 : ROCKER_OP_FLAG_REMOVE);
3772 err = rocker_port_ctrl(rocker_port, trans, ctrl_flags,
3776 rocker_port->ctrls[i] = want[i];
3780 err = rocker_port_fdb_flush(rocker_port, trans, flags);
3784 err = rocker_port_fwding(rocker_port, trans, flags);
3787 if (trans == SWITCHDEV_TRANS_PREPARE) {
3788 memcpy(rocker_port->ctrls, prev_ctrls, sizeof(prev_ctrls));
3789 rocker_port->stp_state = prev_state;
3795 static int rocker_port_fwd_enable(struct rocker_port *rocker_port,
3796 enum switchdev_trans trans, int flags)
3798 if (rocker_port_is_bridged(rocker_port))
3799 /* bridge STP will enable port */
3802 /* port is not bridged, so simulate going to FORWARDING state */
3803 return rocker_port_stp_update(rocker_port, trans, flags,
3804 BR_STATE_FORWARDING);
3807 static int rocker_port_fwd_disable(struct rocker_port *rocker_port,
3808 enum switchdev_trans trans, int flags)
3810 if (rocker_port_is_bridged(rocker_port))
3811 /* bridge STP will disable port */
3814 /* port is not bridged, so simulate going to DISABLED state */
3815 return rocker_port_stp_update(rocker_port, trans, flags,
3819 static struct rocker_internal_vlan_tbl_entry *
3820 rocker_internal_vlan_tbl_find(const struct rocker *rocker, int ifindex)
3822 struct rocker_internal_vlan_tbl_entry *found;
3824 hash_for_each_possible(rocker->internal_vlan_tbl, found,
3826 if (found->ifindex == ifindex)
3833 static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port,
3836 struct rocker *rocker = rocker_port->rocker;
3837 struct rocker_internal_vlan_tbl_entry *entry;
3838 struct rocker_internal_vlan_tbl_entry *found;
3839 unsigned long lock_flags;
3842 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3846 entry->ifindex = ifindex;
3848 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3850 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3857 hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex);
3859 for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) {
3860 if (test_and_set_bit(i, rocker->internal_vlan_bitmap))
3862 found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i);
3866 netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n");
3870 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3872 return found->vlan_id;
3876 rocker_port_internal_vlan_id_put(const struct rocker_port *rocker_port,
3879 struct rocker *rocker = rocker_port->rocker;
3880 struct rocker_internal_vlan_tbl_entry *found;
3881 unsigned long lock_flags;
3884 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3886 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3888 netdev_err(rocker_port->dev,
3889 "ifindex (%d) not found in internal VLAN tbl\n",
3894 if (--found->ref_count <= 0) {
3895 bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE;
3896 clear_bit(bit, rocker->internal_vlan_bitmap);
3897 hash_del(&found->entry);
3902 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3905 static int rocker_port_fib_ipv4(struct rocker_port *rocker_port,
3906 enum switchdev_trans trans, __be32 dst,
3907 int dst_len, const struct fib_info *fi,
3908 u32 tb_id, int flags)
3910 const struct fib_nh *nh;
3911 __be16 eth_type = htons(ETH_P_IP);
3912 __be32 dst_mask = inet_make_mask(dst_len);
3913 __be16 internal_vlan_id = rocker_port->internal_vlan_id;
3914 u32 priority = fi->fib_priority;
3915 enum rocker_of_dpa_table_id goto_tbl =
3916 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3923 /* XXX support ECMP */
3926 nh_on_port = (fi->fib_dev == rocker_port->dev);
3927 has_gw = !!nh->nh_gw;
3929 if (has_gw && nh_on_port) {
3930 err = rocker_port_ipv4_nh(rocker_port, trans, flags,
3935 group_id = ROCKER_GROUP_L3_UNICAST(index);
3937 /* Send to CPU for processing */
3938 group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0);
3941 err = rocker_flow_tbl_ucast4_routing(rocker_port, trans, eth_type, dst,
3942 dst_mask, priority, goto_tbl,
3945 netdev_err(rocker_port->dev, "Error (%d) IPv4 route %pI4\n",
3955 static int rocker_port_open(struct net_device *dev)
3957 struct rocker_port *rocker_port = netdev_priv(dev);
3960 err = rocker_port_dma_rings_init(rocker_port);
3964 err = request_irq(rocker_msix_tx_vector(rocker_port),
3965 rocker_tx_irq_handler, 0,
3966 rocker_driver_name, rocker_port);
3968 netdev_err(rocker_port->dev, "cannot assign tx irq\n");
3969 goto err_request_tx_irq;
3972 err = request_irq(rocker_msix_rx_vector(rocker_port),
3973 rocker_rx_irq_handler, 0,
3974 rocker_driver_name, rocker_port);
3976 netdev_err(rocker_port->dev, "cannot assign rx irq\n");
3977 goto err_request_rx_irq;
3980 err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE, 0);
3982 goto err_fwd_enable;
3984 napi_enable(&rocker_port->napi_tx);
3985 napi_enable(&rocker_port->napi_rx);
3986 rocker_port_set_enable(rocker_port, true);
3987 netif_start_queue(dev);
3991 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
3993 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
3995 rocker_port_dma_rings_fini(rocker_port);
3999 static int rocker_port_stop(struct net_device *dev)
4001 struct rocker_port *rocker_port = netdev_priv(dev);
4003 netif_stop_queue(dev);
4004 rocker_port_set_enable(rocker_port, false);
4005 napi_disable(&rocker_port->napi_rx);
4006 napi_disable(&rocker_port->napi_tx);
4007 rocker_port_fwd_disable(rocker_port, SWITCHDEV_TRANS_NONE,
4008 ROCKER_OP_FLAG_NOWAIT);
4009 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
4010 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
4011 rocker_port_dma_rings_fini(rocker_port);
4016 static void rocker_tx_desc_frags_unmap(const struct rocker_port *rocker_port,
4017 const struct rocker_desc_info *desc_info)
4019 const struct rocker *rocker = rocker_port->rocker;
4020 struct pci_dev *pdev = rocker->pdev;
4021 const struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1];
4022 struct rocker_tlv *attr;
4025 rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info);
4026 if (!attrs[ROCKER_TLV_TX_FRAGS])
4028 rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) {
4029 const struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1];
4030 dma_addr_t dma_handle;
4033 if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG)
4035 rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX,
4037 if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] ||
4038 !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN])
4040 dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]);
4041 len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]);
4042 pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE);
4046 static int rocker_tx_desc_frag_map_put(const struct rocker_port *rocker_port,
4047 struct rocker_desc_info *desc_info,
4048 char *buf, size_t buf_len)
4050 const struct rocker *rocker = rocker_port->rocker;
4051 struct pci_dev *pdev = rocker->pdev;
4052 dma_addr_t dma_handle;
4053 struct rocker_tlv *frag;
4055 dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE);
4056 if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) {
4057 if (net_ratelimit())
4058 netdev_err(rocker_port->dev, "failed to dma map tx frag\n");
4061 frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG);
4064 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR,
4067 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN,
4070 rocker_tlv_nest_end(desc_info, frag);
4074 rocker_tlv_nest_cancel(desc_info, frag);
4076 pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE);
4080 static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev)
4082 struct rocker_port *rocker_port = netdev_priv(dev);
4083 struct rocker *rocker = rocker_port->rocker;
4084 struct rocker_desc_info *desc_info;
4085 struct rocker_tlv *frags;
4089 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
4090 if (unlikely(!desc_info)) {
4091 if (net_ratelimit())
4092 netdev_err(dev, "tx ring full when queue awake\n");
4093 return NETDEV_TX_BUSY;
4096 rocker_desc_cookie_ptr_set(desc_info, skb);
4098 frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS);
4101 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
4102 skb->data, skb_headlen(skb));
4105 if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX)
4108 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4109 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
4111 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
4112 skb_frag_address(frag),
4113 skb_frag_size(frag));
4117 rocker_tlv_nest_end(desc_info, frags);
4119 rocker_desc_gen_clear(desc_info);
4120 rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info);
4122 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
4124 netif_stop_queue(dev);
4126 return NETDEV_TX_OK;
4129 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
4131 rocker_tlv_nest_cancel(desc_info, frags);
4134 dev->stats.tx_dropped++;
4136 return NETDEV_TX_OK;
4139 static int rocker_port_set_mac_address(struct net_device *dev, void *p)
4141 struct sockaddr *addr = p;
4142 struct rocker_port *rocker_port = netdev_priv(dev);
4145 if (!is_valid_ether_addr(addr->sa_data))
4146 return -EADDRNOTAVAIL;
4148 err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data);
4151 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
4155 static int rocker_port_get_phys_port_name(struct net_device *dev,
4156 char *buf, size_t len)
4158 struct rocker_port *rocker_port = netdev_priv(dev);
4159 struct port_name name = { .buf = buf, .len = len };
4162 err = rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
4163 rocker_cmd_get_port_settings_prep, NULL,
4164 rocker_cmd_get_port_settings_phys_name_proc,
4167 return err ? -EOPNOTSUPP : 0;
4170 static const struct net_device_ops rocker_port_netdev_ops = {
4171 .ndo_open = rocker_port_open,
4172 .ndo_stop = rocker_port_stop,
4173 .ndo_start_xmit = rocker_port_xmit,
4174 .ndo_set_mac_address = rocker_port_set_mac_address,
4175 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
4176 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
4177 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
4178 .ndo_fdb_add = switchdev_port_fdb_add,
4179 .ndo_fdb_del = switchdev_port_fdb_del,
4180 .ndo_fdb_dump = switchdev_port_fdb_dump,
4181 .ndo_get_phys_port_name = rocker_port_get_phys_port_name,
4184 /********************
4186 ********************/
4188 static int rocker_port_attr_get(struct net_device *dev,
4189 struct switchdev_attr *attr)
4191 const struct rocker_port *rocker_port = netdev_priv(dev);
4192 const struct rocker *rocker = rocker_port->rocker;
4195 case SWITCHDEV_ATTR_PORT_PARENT_ID:
4196 attr->u.ppid.id_len = sizeof(rocker->hw.id);
4197 memcpy(&attr->u.ppid.id, &rocker->hw.id, attr->u.ppid.id_len);
4199 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
4200 attr->u.brport_flags = rocker_port->brport_flags;
4209 static void rocker_port_trans_abort(const struct rocker_port *rocker_port)
4211 struct list_head *mem, *tmp;
4213 list_for_each_safe(mem, tmp, &rocker_port->trans_mem) {
4219 static int rocker_port_brport_flags_set(struct rocker_port *rocker_port,
4220 enum switchdev_trans trans,
4221 unsigned long brport_flags)
4223 unsigned long orig_flags;
4226 orig_flags = rocker_port->brport_flags;
4227 rocker_port->brport_flags = brport_flags;
4228 if ((orig_flags ^ rocker_port->brport_flags) & BR_LEARNING)
4229 err = rocker_port_set_learning(rocker_port, trans);
4231 if (trans == SWITCHDEV_TRANS_PREPARE)
4232 rocker_port->brport_flags = orig_flags;
4237 static int rocker_port_attr_set(struct net_device *dev,
4238 struct switchdev_attr *attr)
4240 struct rocker_port *rocker_port = netdev_priv(dev);
4243 switch (attr->trans) {
4244 case SWITCHDEV_TRANS_PREPARE:
4245 BUG_ON(!list_empty(&rocker_port->trans_mem));
4247 case SWITCHDEV_TRANS_ABORT:
4248 rocker_port_trans_abort(rocker_port);
4255 case SWITCHDEV_ATTR_PORT_STP_STATE:
4256 err = rocker_port_stp_update(rocker_port, attr->trans,
4257 ROCKER_OP_FLAG_NOWAIT,
4260 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
4261 err = rocker_port_brport_flags_set(rocker_port, attr->trans,
4262 attr->u.brport_flags);
4272 static int rocker_port_vlan_add(struct rocker_port *rocker_port,
4273 enum switchdev_trans trans, u16 vid, u16 flags)
4277 /* XXX deal with flags for PVID and untagged */
4279 err = rocker_port_vlan(rocker_port, trans, 0, vid);
4283 err = rocker_port_router_mac(rocker_port, trans, 0, htons(vid));
4285 rocker_port_vlan(rocker_port, trans,
4286 ROCKER_OP_FLAG_REMOVE, vid);
4291 static int rocker_port_vlans_add(struct rocker_port *rocker_port,
4292 enum switchdev_trans trans,
4293 const struct switchdev_obj_vlan *vlan)
4298 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
4299 err = rocker_port_vlan_add(rocker_port, trans,
4308 static int rocker_port_fdb_add(struct rocker_port *rocker_port,
4309 enum switchdev_trans trans,
4310 const struct switchdev_obj_fdb *fdb)
4312 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
4315 if (!rocker_port_is_bridged(rocker_port))
4318 return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
4321 static int rocker_port_obj_add(struct net_device *dev,
4322 struct switchdev_obj *obj)
4324 struct rocker_port *rocker_port = netdev_priv(dev);
4325 const struct switchdev_obj_ipv4_fib *fib4;
4328 switch (obj->trans) {
4329 case SWITCHDEV_TRANS_PREPARE:
4330 BUG_ON(!list_empty(&rocker_port->trans_mem));
4332 case SWITCHDEV_TRANS_ABORT:
4333 rocker_port_trans_abort(rocker_port);
4340 case SWITCHDEV_OBJ_PORT_VLAN:
4341 err = rocker_port_vlans_add(rocker_port, obj->trans,
4344 case SWITCHDEV_OBJ_IPV4_FIB:
4345 fib4 = &obj->u.ipv4_fib;
4346 err = rocker_port_fib_ipv4(rocker_port, obj->trans,
4347 htonl(fib4->dst), fib4->dst_len,
4348 fib4->fi, fib4->tb_id, 0);
4350 case SWITCHDEV_OBJ_PORT_FDB:
4351 err = rocker_port_fdb_add(rocker_port, obj->trans, &obj->u.fdb);
4361 static int rocker_port_vlan_del(struct rocker_port *rocker_port,
4366 err = rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE,
4367 ROCKER_OP_FLAG_REMOVE, htons(vid));
4371 return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
4372 ROCKER_OP_FLAG_REMOVE, vid);
4375 static int rocker_port_vlans_del(struct rocker_port *rocker_port,
4376 const struct switchdev_obj_vlan *vlan)
4381 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
4382 err = rocker_port_vlan_del(rocker_port, vid, vlan->flags);
4390 static int rocker_port_fdb_del(struct rocker_port *rocker_port,
4391 enum switchdev_trans trans,
4392 const struct switchdev_obj_fdb *fdb)
4394 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
4395 int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_REMOVE;
4397 if (!rocker_port_is_bridged(rocker_port))
4400 return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
4403 static int rocker_port_obj_del(struct net_device *dev,
4404 struct switchdev_obj *obj)
4406 struct rocker_port *rocker_port = netdev_priv(dev);
4407 const struct switchdev_obj_ipv4_fib *fib4;
4411 case SWITCHDEV_OBJ_PORT_VLAN:
4412 err = rocker_port_vlans_del(rocker_port, &obj->u.vlan);
4414 case SWITCHDEV_OBJ_IPV4_FIB:
4415 fib4 = &obj->u.ipv4_fib;
4416 err = rocker_port_fib_ipv4(rocker_port, SWITCHDEV_TRANS_NONE,
4417 htonl(fib4->dst), fib4->dst_len,
4418 fib4->fi, fib4->tb_id,
4419 ROCKER_OP_FLAG_REMOVE);
4421 case SWITCHDEV_OBJ_PORT_FDB:
4422 err = rocker_port_fdb_del(rocker_port, obj->trans, &obj->u.fdb);
4432 static int rocker_port_fdb_dump(const struct rocker_port *rocker_port,
4433 struct switchdev_obj *obj)
4435 struct rocker *rocker = rocker_port->rocker;
4436 struct switchdev_obj_fdb *fdb = &obj->u.fdb;
4437 struct rocker_fdb_tbl_entry *found;
4438 struct hlist_node *tmp;
4439 unsigned long lock_flags;
4443 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
4444 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
4445 if (found->key.pport != rocker_port->pport)
4447 fdb->addr = found->key.addr;
4448 fdb->vid = rocker_port_vlan_to_vid(rocker_port,
4449 found->key.vlan_id);
4450 err = obj->cb(rocker_port->dev, obj);
4454 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
4459 static int rocker_port_vlan_dump(const struct rocker_port *rocker_port,
4460 struct switchdev_obj *obj)
4462 struct switchdev_obj_vlan *vlan = &obj->u.vlan;
4466 for (vid = 1; vid < VLAN_N_VID; vid++) {
4467 if (!test_bit(vid, rocker_port->vlan_bitmap))
4470 if (rocker_vlan_id_is_internal(htons(vid)))
4471 vlan->flags |= BRIDGE_VLAN_INFO_PVID;
4472 vlan->vid_begin = vlan->vid_end = vid;
4473 err = obj->cb(rocker_port->dev, obj);
4481 static int rocker_port_obj_dump(struct net_device *dev,
4482 struct switchdev_obj *obj)
4484 const struct rocker_port *rocker_port = netdev_priv(dev);
4488 case SWITCHDEV_OBJ_PORT_FDB:
4489 err = rocker_port_fdb_dump(rocker_port, obj);
4491 case SWITCHDEV_OBJ_PORT_VLAN:
4492 err = rocker_port_vlan_dump(rocker_port, obj);
4502 static const struct switchdev_ops rocker_port_switchdev_ops = {
4503 .switchdev_port_attr_get = rocker_port_attr_get,
4504 .switchdev_port_attr_set = rocker_port_attr_set,
4505 .switchdev_port_obj_add = rocker_port_obj_add,
4506 .switchdev_port_obj_del = rocker_port_obj_del,
4507 .switchdev_port_obj_dump = rocker_port_obj_dump,
4510 /********************
4512 ********************/
4514 static int rocker_port_get_settings(struct net_device *dev,
4515 struct ethtool_cmd *ecmd)
4517 struct rocker_port *rocker_port = netdev_priv(dev);
4519 return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd);
4522 static int rocker_port_set_settings(struct net_device *dev,
4523 struct ethtool_cmd *ecmd)
4525 struct rocker_port *rocker_port = netdev_priv(dev);
4527 return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd);
4530 static void rocker_port_get_drvinfo(struct net_device *dev,
4531 struct ethtool_drvinfo *drvinfo)
4533 strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver));
4534 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
4537 static struct rocker_port_stats {
4538 char str[ETH_GSTRING_LEN];
4540 } rocker_port_stats[] = {
4541 { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, },
4542 { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, },
4543 { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, },
4544 { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, },
4546 { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, },
4547 { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, },
4548 { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, },
4549 { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, },
4552 #define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats)
4554 static void rocker_port_get_strings(struct net_device *netdev, u32 stringset,
4560 switch (stringset) {
4562 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4563 memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN);
4564 p += ETH_GSTRING_LEN;
4571 rocker_cmd_get_port_stats_prep(const struct rocker_port *rocker_port,
4572 struct rocker_desc_info *desc_info,
4575 struct rocker_tlv *cmd_stats;
4577 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
4578 ROCKER_TLV_CMD_TYPE_GET_PORT_STATS))
4581 cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
4585 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT,
4586 rocker_port->pport))
4589 rocker_tlv_nest_end(desc_info, cmd_stats);
4595 rocker_cmd_get_port_stats_ethtool_proc(const struct rocker_port *rocker_port,
4596 const struct rocker_desc_info *desc_info,
4599 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
4600 const struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1];
4601 const struct rocker_tlv *pattr;
4606 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
4608 if (!attrs[ROCKER_TLV_CMD_INFO])
4611 rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX,
4612 attrs[ROCKER_TLV_CMD_INFO]);
4614 if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT])
4617 pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]);
4618 if (pport != rocker_port->pport)
4621 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4622 pattr = stats_attrs[rocker_port_stats[i].type];
4626 data[i] = rocker_tlv_get_u64(pattr);
4632 static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port,
4635 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
4636 rocker_cmd_get_port_stats_prep, NULL,
4637 rocker_cmd_get_port_stats_ethtool_proc,
4641 static void rocker_port_get_stats(struct net_device *dev,
4642 struct ethtool_stats *stats, u64 *data)
4644 struct rocker_port *rocker_port = netdev_priv(dev);
4646 if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) {
4649 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i)
4654 static int rocker_port_get_sset_count(struct net_device *netdev, int sset)
4658 return ROCKER_PORT_STATS_LEN;
4664 static const struct ethtool_ops rocker_port_ethtool_ops = {
4665 .get_settings = rocker_port_get_settings,
4666 .set_settings = rocker_port_set_settings,
4667 .get_drvinfo = rocker_port_get_drvinfo,
4668 .get_link = ethtool_op_get_link,
4669 .get_strings = rocker_port_get_strings,
4670 .get_ethtool_stats = rocker_port_get_stats,
4671 .get_sset_count = rocker_port_get_sset_count,
4678 static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi)
4680 return container_of(napi, struct rocker_port, napi_tx);
4683 static int rocker_port_poll_tx(struct napi_struct *napi, int budget)
4685 struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi);
4686 const struct rocker *rocker = rocker_port->rocker;
4687 const struct rocker_desc_info *desc_info;
4691 /* Cleanup tx descriptors */
4692 while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) {
4693 struct sk_buff *skb;
4695 err = rocker_desc_err(desc_info);
4696 if (err && net_ratelimit())
4697 netdev_err(rocker_port->dev, "tx desc received with err %d\n",
4699 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
4701 skb = rocker_desc_cookie_ptr_get(desc_info);
4703 rocker_port->dev->stats.tx_packets++;
4704 rocker_port->dev->stats.tx_bytes += skb->len;
4706 rocker_port->dev->stats.tx_errors++;
4709 dev_kfree_skb_any(skb);
4713 if (credits && netif_queue_stopped(rocker_port->dev))
4714 netif_wake_queue(rocker_port->dev);
4716 napi_complete(napi);
4717 rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits);
4722 static int rocker_port_rx_proc(const struct rocker *rocker,
4723 const struct rocker_port *rocker_port,
4724 struct rocker_desc_info *desc_info)
4726 const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
4727 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
4733 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
4734 if (!attrs[ROCKER_TLV_RX_FRAG_LEN])
4737 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
4739 rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]);
4740 skb_put(skb, rx_len);
4741 skb->protocol = eth_type_trans(skb, rocker_port->dev);
4743 rocker_port->dev->stats.rx_packets++;
4744 rocker_port->dev->stats.rx_bytes += skb->len;
4746 netif_receive_skb(skb);
4748 return rocker_dma_rx_ring_skb_alloc(rocker_port, desc_info);
4751 static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi)
4753 return container_of(napi, struct rocker_port, napi_rx);
4756 static int rocker_port_poll_rx(struct napi_struct *napi, int budget)
4758 struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi);
4759 const struct rocker *rocker = rocker_port->rocker;
4760 struct rocker_desc_info *desc_info;
4764 /* Process rx descriptors */
4765 while (credits < budget &&
4766 (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) {
4767 err = rocker_desc_err(desc_info);
4769 if (net_ratelimit())
4770 netdev_err(rocker_port->dev, "rx desc received with err %d\n",
4773 err = rocker_port_rx_proc(rocker, rocker_port,
4775 if (err && net_ratelimit())
4776 netdev_err(rocker_port->dev, "rx processing failed with err %d\n",
4780 rocker_port->dev->stats.rx_errors++;
4782 rocker_desc_gen_clear(desc_info);
4783 rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info);
4787 if (credits < budget)
4788 napi_complete(napi);
4790 rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits);
4799 static void rocker_carrier_init(const struct rocker_port *rocker_port)
4801 const struct rocker *rocker = rocker_port->rocker;
4802 u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS);
4805 link_up = link_status & (1 << rocker_port->pport);
4807 netif_carrier_on(rocker_port->dev);
4809 netif_carrier_off(rocker_port->dev);
4812 static void rocker_remove_ports(const struct rocker *rocker)
4814 struct rocker_port *rocker_port;
4817 for (i = 0; i < rocker->port_count; i++) {
4818 rocker_port = rocker->ports[i];
4821 rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE,
4822 ROCKER_OP_FLAG_REMOVE);
4823 unregister_netdev(rocker_port->dev);
4825 kfree(rocker->ports);
4828 static void rocker_port_dev_addr_init(struct rocker_port *rocker_port)
4830 const struct rocker *rocker = rocker_port->rocker;
4831 const struct pci_dev *pdev = rocker->pdev;
4834 err = rocker_cmd_get_port_settings_macaddr(rocker_port,
4835 rocker_port->dev->dev_addr);
4837 dev_warn(&pdev->dev, "failed to get mac address, using random\n");
4838 eth_hw_addr_random(rocker_port->dev);
4842 static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
4844 const struct pci_dev *pdev = rocker->pdev;
4845 struct rocker_port *rocker_port;
4846 struct net_device *dev;
4847 u16 untagged_vid = 0;
4850 dev = alloc_etherdev(sizeof(struct rocker_port));
4853 rocker_port = netdev_priv(dev);
4854 rocker_port->dev = dev;
4855 rocker_port->rocker = rocker;
4856 rocker_port->port_number = port_number;
4857 rocker_port->pport = port_number + 1;
4858 rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC;
4859 INIT_LIST_HEAD(&rocker_port->trans_mem);
4861 rocker_port_dev_addr_init(rocker_port);
4862 dev->netdev_ops = &rocker_port_netdev_ops;
4863 dev->ethtool_ops = &rocker_port_ethtool_ops;
4864 dev->switchdev_ops = &rocker_port_switchdev_ops;
4865 netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx,
4867 netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx,
4869 rocker_carrier_init(rocker_port);
4871 dev->features |= NETIF_F_NETNS_LOCAL;
4873 err = register_netdev(dev);
4875 dev_err(&pdev->dev, "register_netdev failed\n");
4876 goto err_register_netdev;
4878 rocker->ports[port_number] = rocker_port;
4880 rocker_port_set_learning(rocker_port, SWITCHDEV_TRANS_NONE);
4882 err = rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, 0);
4884 dev_err(&pdev->dev, "install ig port table failed\n");
4885 goto err_port_ig_tbl;
4888 rocker_port->internal_vlan_id =
4889 rocker_port_internal_vlan_id_get(rocker_port, dev->ifindex);
4891 err = rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE,
4894 netdev_err(rocker_port->dev, "install untagged VLAN failed\n");
4895 goto err_untagged_vlan;
4901 rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE,
4902 ROCKER_OP_FLAG_REMOVE);
4904 unregister_netdev(dev);
4905 err_register_netdev:
4910 static int rocker_probe_ports(struct rocker *rocker)
4916 alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
4917 rocker->ports = kzalloc(alloc_size, GFP_KERNEL);
4920 for (i = 0; i < rocker->port_count; i++) {
4921 err = rocker_probe_port(rocker, i);
4928 rocker_remove_ports(rocker);
4932 static int rocker_msix_init(struct rocker *rocker)
4934 struct pci_dev *pdev = rocker->pdev;
4939 msix_entries = pci_msix_vec_count(pdev);
4940 if (msix_entries < 0)
4941 return msix_entries;
4943 if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count))
4946 rocker->msix_entries = kmalloc_array(msix_entries,
4947 sizeof(struct msix_entry),
4949 if (!rocker->msix_entries)
4952 for (i = 0; i < msix_entries; i++)
4953 rocker->msix_entries[i].entry = i;
4955 err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries);
4957 goto err_enable_msix;
4962 kfree(rocker->msix_entries);
4966 static void rocker_msix_fini(const struct rocker *rocker)
4968 pci_disable_msix(rocker->pdev);
4969 kfree(rocker->msix_entries);
4972 static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
4974 struct rocker *rocker;
4977 rocker = kzalloc(sizeof(*rocker), GFP_KERNEL);
4981 err = pci_enable_device(pdev);
4983 dev_err(&pdev->dev, "pci_enable_device failed\n");
4984 goto err_pci_enable_device;
4987 err = pci_request_regions(pdev, rocker_driver_name);
4989 dev_err(&pdev->dev, "pci_request_regions failed\n");
4990 goto err_pci_request_regions;
4993 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
4995 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
4997 dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n");
4998 goto err_pci_set_dma_mask;
5001 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
5003 dev_err(&pdev->dev, "pci_set_dma_mask failed\n");
5004 goto err_pci_set_dma_mask;
5008 if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) {
5009 dev_err(&pdev->dev, "invalid PCI region size\n");
5011 goto err_pci_resource_len_check;
5014 rocker->hw_addr = ioremap(pci_resource_start(pdev, 0),
5015 pci_resource_len(pdev, 0));
5016 if (!rocker->hw_addr) {
5017 dev_err(&pdev->dev, "ioremap failed\n");
5021 pci_set_master(pdev);
5023 rocker->pdev = pdev;
5024 pci_set_drvdata(pdev, rocker);
5026 rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT);
5028 err = rocker_msix_init(rocker);
5030 dev_err(&pdev->dev, "MSI-X init failed\n");
5034 err = rocker_basic_hw_test(rocker);
5036 dev_err(&pdev->dev, "basic hw test failed\n");
5037 goto err_basic_hw_test;
5040 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
5042 err = rocker_dma_rings_init(rocker);
5044 goto err_dma_rings_init;
5046 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD),
5047 rocker_cmd_irq_handler, 0,
5048 rocker_driver_name, rocker);
5050 dev_err(&pdev->dev, "cannot assign cmd irq\n");
5051 goto err_request_cmd_irq;
5054 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT),
5055 rocker_event_irq_handler, 0,
5056 rocker_driver_name, rocker);
5058 dev_err(&pdev->dev, "cannot assign event irq\n");
5059 goto err_request_event_irq;
5062 rocker->hw.id = rocker_read64(rocker, SWITCH_ID);
5064 err = rocker_init_tbls(rocker);
5066 dev_err(&pdev->dev, "cannot init rocker tables\n");
5070 err = rocker_probe_ports(rocker);
5072 dev_err(&pdev->dev, "failed to probe ports\n");
5073 goto err_probe_ports;
5076 dev_info(&pdev->dev, "Rocker switch with id %016llx\n", rocker->hw.id);
5081 rocker_free_tbls(rocker);
5083 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
5084 err_request_event_irq:
5085 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
5086 err_request_cmd_irq:
5087 rocker_dma_rings_fini(rocker);
5090 rocker_msix_fini(rocker);
5092 iounmap(rocker->hw_addr);
5094 err_pci_resource_len_check:
5095 err_pci_set_dma_mask:
5096 pci_release_regions(pdev);
5097 err_pci_request_regions:
5098 pci_disable_device(pdev);
5099 err_pci_enable_device:
5104 static void rocker_remove(struct pci_dev *pdev)
5106 struct rocker *rocker = pci_get_drvdata(pdev);
5108 rocker_free_tbls(rocker);
5109 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
5110 rocker_remove_ports(rocker);
5111 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
5112 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
5113 rocker_dma_rings_fini(rocker);
5114 rocker_msix_fini(rocker);
5115 iounmap(rocker->hw_addr);
5116 pci_release_regions(rocker->pdev);
5117 pci_disable_device(rocker->pdev);
5121 static struct pci_driver rocker_pci_driver = {
5122 .name = rocker_driver_name,
5123 .id_table = rocker_pci_id_table,
5124 .probe = rocker_probe,
5125 .remove = rocker_remove,
5128 /************************************
5129 * Net device notifier event handler
5130 ************************************/
5132 static bool rocker_port_dev_check(const struct net_device *dev)
5134 return dev->netdev_ops == &rocker_port_netdev_ops;
5137 static int rocker_port_bridge_join(struct rocker_port *rocker_port,
5138 struct net_device *bridge)
5140 u16 untagged_vid = 0;
5143 /* Port is joining bridge, so the internal VLAN for the
5144 * port is going to change to the bridge internal VLAN.
5145 * Let's remove untagged VLAN (vid=0) from port and
5146 * re-add once internal VLAN has changed.
5149 err = rocker_port_vlan_del(rocker_port, untagged_vid, 0);
5153 rocker_port_internal_vlan_id_put(rocker_port,
5154 rocker_port->dev->ifindex);
5155 rocker_port->internal_vlan_id =
5156 rocker_port_internal_vlan_id_get(rocker_port, bridge->ifindex);
5158 rocker_port->bridge_dev = bridge;
5160 return rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE,
5164 static int rocker_port_bridge_leave(struct rocker_port *rocker_port)
5166 u16 untagged_vid = 0;
5169 err = rocker_port_vlan_del(rocker_port, untagged_vid, 0);
5173 rocker_port_internal_vlan_id_put(rocker_port,
5174 rocker_port->bridge_dev->ifindex);
5175 rocker_port->internal_vlan_id =
5176 rocker_port_internal_vlan_id_get(rocker_port,
5177 rocker_port->dev->ifindex);
5179 rocker_port->bridge_dev = NULL;
5181 err = rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE,
5186 if (rocker_port->dev->flags & IFF_UP)
5187 err = rocker_port_fwd_enable(rocker_port,
5188 SWITCHDEV_TRANS_NONE, 0);
5193 static int rocker_port_master_changed(struct net_device *dev)
5195 struct rocker_port *rocker_port = netdev_priv(dev);
5196 struct net_device *master = netdev_master_upper_dev_get(dev);
5199 /* There are currently three cases handled here:
5200 * 1. Joining a bridge
5201 * 2. Leaving a previously joined bridge
5202 * 3. Other, e.g. being added to or removed from a bond or openvswitch,
5203 * in which case nothing is done
5205 if (master && master->rtnl_link_ops &&
5206 !strcmp(master->rtnl_link_ops->kind, "bridge"))
5207 err = rocker_port_bridge_join(rocker_port, master);
5208 else if (rocker_port_is_bridged(rocker_port))
5209 err = rocker_port_bridge_leave(rocker_port);
5214 static int rocker_netdevice_event(struct notifier_block *unused,
5215 unsigned long event, void *ptr)
5217 struct net_device *dev;
5221 case NETDEV_CHANGEUPPER:
5222 dev = netdev_notifier_info_to_dev(ptr);
5223 if (!rocker_port_dev_check(dev))
5225 err = rocker_port_master_changed(dev);
5228 "failed to reflect master change (err %d)\n",
5236 static struct notifier_block rocker_netdevice_nb __read_mostly = {
5237 .notifier_call = rocker_netdevice_event,
5240 /************************************
5241 * Net event notifier event handler
5242 ************************************/
5244 static int rocker_neigh_update(struct net_device *dev, struct neighbour *n)
5246 struct rocker_port *rocker_port = netdev_priv(dev);
5247 int flags = (n->nud_state & NUD_VALID ? 0 : ROCKER_OP_FLAG_REMOVE) |
5248 ROCKER_OP_FLAG_NOWAIT;
5249 __be32 ip_addr = *(__be32 *)n->primary_key;
5251 return rocker_port_ipv4_neigh(rocker_port, SWITCHDEV_TRANS_NONE,
5252 flags, ip_addr, n->ha);
5255 static int rocker_netevent_event(struct notifier_block *unused,
5256 unsigned long event, void *ptr)
5258 struct net_device *dev;
5259 struct neighbour *n = ptr;
5263 case NETEVENT_NEIGH_UPDATE:
5264 if (n->tbl != &arp_tbl)
5267 if (!rocker_port_dev_check(dev))
5269 err = rocker_neigh_update(dev, n);
5272 "failed to handle neigh update (err %d)\n",
5280 static struct notifier_block rocker_netevent_nb __read_mostly = {
5281 .notifier_call = rocker_netevent_event,
5284 /***********************
5285 * Module init and exit
5286 ***********************/
5288 static int __init rocker_module_init(void)
5292 register_netdevice_notifier(&rocker_netdevice_nb);
5293 register_netevent_notifier(&rocker_netevent_nb);
5294 err = pci_register_driver(&rocker_pci_driver);
5296 goto err_pci_register_driver;
5299 err_pci_register_driver:
5300 unregister_netevent_notifier(&rocker_netevent_nb);
5301 unregister_netdevice_notifier(&rocker_netdevice_nb);
5305 static void __exit rocker_module_exit(void)
5307 unregister_netevent_notifier(&rocker_netevent_nb);
5308 unregister_netdevice_notifier(&rocker_netdevice_nb);
5309 pci_unregister_driver(&rocker_pci_driver);
5312 module_init(rocker_module_init);
5313 module_exit(rocker_module_exit);
5315 MODULE_LICENSE("GPL v2");
5316 MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
5317 MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
5318 MODULE_DESCRIPTION("Rocker switch device driver");
5319 MODULE_DEVICE_TABLE(pci, rocker_pci_id_table);