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;
184 DEFINE_DMA_UNMAP_ADDR(mapaddr);
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;
231 struct pci_dev *pdev;
233 struct msix_entry *msix_entries;
234 unsigned int port_count;
235 struct rocker_port **ports;
239 spinlock_t cmd_ring_lock;
240 struct rocker_dma_ring_info cmd_ring;
241 struct rocker_dma_ring_info event_ring;
242 DECLARE_HASHTABLE(flow_tbl, 16);
243 spinlock_t flow_tbl_lock;
244 u64 flow_tbl_next_cookie;
245 DECLARE_HASHTABLE(group_tbl, 16);
246 spinlock_t group_tbl_lock;
247 DECLARE_HASHTABLE(fdb_tbl, 16);
248 spinlock_t fdb_tbl_lock;
249 unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN];
250 DECLARE_HASHTABLE(internal_vlan_tbl, 8);
251 spinlock_t internal_vlan_tbl_lock;
252 DECLARE_HASHTABLE(neigh_tbl, 16);
253 spinlock_t neigh_tbl_lock;
254 u32 neigh_tbl_next_index;
257 static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
258 static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
259 static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
260 static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
261 static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
262 static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
263 static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
264 static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
265 static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
267 /* Rocker priority levels for flow table entries. Higher
268 * priority match takes precedence over lower priority match.
272 ROCKER_PRIORITY_UNKNOWN = 0,
273 ROCKER_PRIORITY_IG_PORT = 1,
274 ROCKER_PRIORITY_VLAN = 1,
275 ROCKER_PRIORITY_TERM_MAC_UCAST = 0,
276 ROCKER_PRIORITY_TERM_MAC_MCAST = 1,
277 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1,
278 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2,
279 ROCKER_PRIORITY_BRIDGING_VLAN = 3,
280 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1,
281 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2,
282 ROCKER_PRIORITY_BRIDGING_TENANT = 3,
283 ROCKER_PRIORITY_ACL_CTRL = 3,
284 ROCKER_PRIORITY_ACL_NORMAL = 2,
285 ROCKER_PRIORITY_ACL_DFLT = 1,
288 static bool rocker_vlan_id_is_internal(__be16 vlan_id)
290 u16 start = ROCKER_INTERNAL_VLAN_ID_BASE;
292 u16 _vlan_id = ntohs(vlan_id);
294 return (_vlan_id >= start && _vlan_id <= end);
297 static __be16 rocker_port_vid_to_vlan(struct rocker_port *rocker_port,
298 u16 vid, bool *pop_vlan)
304 vlan_id = htons(vid);
306 vlan_id = rocker_port->internal_vlan_id;
314 static u16 rocker_port_vlan_to_vid(struct rocker_port *rocker_port,
317 if (rocker_vlan_id_is_internal(vlan_id))
320 return ntohs(vlan_id);
323 static bool rocker_port_is_bridged(struct rocker_port *rocker_port)
325 return !!rocker_port->bridge_dev;
329 wait_queue_head_t wait;
334 static void rocker_wait_reset(struct rocker_wait *wait)
337 wait->nowait = false;
340 static void rocker_wait_init(struct rocker_wait *wait)
342 init_waitqueue_head(&wait->wait);
343 rocker_wait_reset(wait);
346 static struct rocker_wait *rocker_wait_create(gfp_t gfp)
348 struct rocker_wait *wait;
350 wait = kmalloc(sizeof(*wait), gfp);
353 rocker_wait_init(wait);
357 static void rocker_wait_destroy(struct rocker_wait *work)
362 static bool rocker_wait_event_timeout(struct rocker_wait *wait,
363 unsigned long timeout)
365 wait_event_timeout(wait->wait, wait->done, HZ / 10);
371 static void rocker_wait_wake_up(struct rocker_wait *wait)
374 wake_up(&wait->wait);
377 static u32 rocker_msix_vector(struct rocker *rocker, unsigned int vector)
379 return rocker->msix_entries[vector].vector;
382 static u32 rocker_msix_tx_vector(struct rocker_port *rocker_port)
384 return rocker_msix_vector(rocker_port->rocker,
385 ROCKER_MSIX_VEC_TX(rocker_port->port_number));
388 static u32 rocker_msix_rx_vector(struct rocker_port *rocker_port)
390 return rocker_msix_vector(rocker_port->rocker,
391 ROCKER_MSIX_VEC_RX(rocker_port->port_number));
394 #define rocker_write32(rocker, reg, val) \
395 writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))
396 #define rocker_read32(rocker, reg) \
397 readl((rocker)->hw_addr + (ROCKER_ ## reg))
398 #define rocker_write64(rocker, reg, val) \
399 writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))
400 #define rocker_read64(rocker, reg) \
401 readq((rocker)->hw_addr + (ROCKER_ ## reg))
403 /*****************************
404 * HW basic testing functions
405 *****************************/
407 static int rocker_reg_test(struct rocker *rocker)
409 struct pci_dev *pdev = rocker->pdev;
415 rocker_write32(rocker, TEST_REG, rnd);
416 test_reg = rocker_read32(rocker, TEST_REG);
417 if (test_reg != rnd * 2) {
418 dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n",
425 rnd |= prandom_u32();
426 rocker_write64(rocker, TEST_REG64, rnd);
427 test_reg = rocker_read64(rocker, TEST_REG64);
428 if (test_reg != rnd * 2) {
429 dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n",
437 static int rocker_dma_test_one(struct rocker *rocker, struct rocker_wait *wait,
438 u32 test_type, dma_addr_t dma_handle,
439 unsigned char *buf, unsigned char *expect,
442 struct pci_dev *pdev = rocker->pdev;
445 rocker_wait_reset(wait);
446 rocker_write32(rocker, TEST_DMA_CTRL, test_type);
448 if (!rocker_wait_event_timeout(wait, HZ / 10)) {
449 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
453 for (i = 0; i < size; i++) {
454 if (buf[i] != expect[i]) {
455 dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected",
456 buf[i], i, expect[i]);
463 #define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)
464 #define ROCKER_TEST_DMA_FILL_PATTERN 0x96
466 static int rocker_dma_test_offset(struct rocker *rocker,
467 struct rocker_wait *wait, int offset)
469 struct pci_dev *pdev = rocker->pdev;
470 unsigned char *alloc;
472 unsigned char *expect;
473 dma_addr_t dma_handle;
477 alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset,
478 GFP_KERNEL | GFP_DMA);
481 buf = alloc + offset;
482 expect = buf + ROCKER_TEST_DMA_BUF_SIZE;
484 dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE,
485 PCI_DMA_BIDIRECTIONAL);
486 if (pci_dma_mapping_error(pdev, dma_handle)) {
491 rocker_write64(rocker, TEST_DMA_ADDR, dma_handle);
492 rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE);
494 memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE);
495 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL,
496 dma_handle, buf, expect,
497 ROCKER_TEST_DMA_BUF_SIZE);
501 memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE);
502 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR,
503 dma_handle, buf, expect,
504 ROCKER_TEST_DMA_BUF_SIZE);
508 prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
509 for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++)
511 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT,
512 dma_handle, buf, expect,
513 ROCKER_TEST_DMA_BUF_SIZE);
518 pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE,
519 PCI_DMA_BIDIRECTIONAL);
526 static int rocker_dma_test(struct rocker *rocker, struct rocker_wait *wait)
531 for (i = 0; i < 8; i++) {
532 err = rocker_dma_test_offset(rocker, wait, i);
539 static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id)
541 struct rocker_wait *wait = dev_id;
543 rocker_wait_wake_up(wait);
548 static int rocker_basic_hw_test(struct rocker *rocker)
550 struct pci_dev *pdev = rocker->pdev;
551 struct rocker_wait wait;
554 err = rocker_reg_test(rocker);
556 dev_err(&pdev->dev, "reg test failed\n");
560 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST),
561 rocker_test_irq_handler, 0,
562 rocker_driver_name, &wait);
564 dev_err(&pdev->dev, "cannot assign test irq\n");
568 rocker_wait_init(&wait);
569 rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST);
571 if (!rocker_wait_event_timeout(&wait, HZ / 10)) {
572 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
577 err = rocker_dma_test(rocker, &wait);
579 dev_err(&pdev->dev, "dma test failed\n");
582 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait);
590 #define ROCKER_TLV_ALIGNTO 8U
591 #define ROCKER_TLV_ALIGN(len) \
592 (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
593 #define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
595 /* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
596 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
597 * | Header | Pad | Payload | Pad |
598 * | (struct rocker_tlv) | ing | | ing |
599 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
600 * <--------------------------- tlv->len -------------------------->
603 static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv,
606 int totlen = ROCKER_TLV_ALIGN(tlv->len);
608 *remaining -= totlen;
609 return (struct rocker_tlv *) ((char *) tlv + totlen);
612 static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining)
614 return remaining >= (int) ROCKER_TLV_HDRLEN &&
615 tlv->len >= ROCKER_TLV_HDRLEN &&
616 tlv->len <= remaining;
619 #define rocker_tlv_for_each(pos, head, len, rem) \
620 for (pos = head, rem = len; \
621 rocker_tlv_ok(pos, rem); \
622 pos = rocker_tlv_next(pos, &(rem)))
624 #define rocker_tlv_for_each_nested(pos, tlv, rem) \
625 rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
626 rocker_tlv_len(tlv), rem)
628 static int rocker_tlv_attr_size(int payload)
630 return ROCKER_TLV_HDRLEN + payload;
633 static int rocker_tlv_total_size(int payload)
635 return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload));
638 static int rocker_tlv_padlen(int payload)
640 return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload);
643 static int rocker_tlv_type(const struct rocker_tlv *tlv)
648 static void *rocker_tlv_data(const struct rocker_tlv *tlv)
650 return (char *) tlv + ROCKER_TLV_HDRLEN;
653 static int rocker_tlv_len(const struct rocker_tlv *tlv)
655 return tlv->len - ROCKER_TLV_HDRLEN;
658 static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv)
660 return *(u8 *) rocker_tlv_data(tlv);
663 static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv)
665 return *(u16 *) rocker_tlv_data(tlv);
668 static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv)
670 return *(__be16 *) rocker_tlv_data(tlv);
673 static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv)
675 return *(u32 *) rocker_tlv_data(tlv);
678 static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv)
680 return *(u64 *) rocker_tlv_data(tlv);
683 static void rocker_tlv_parse(struct rocker_tlv **tb, int maxtype,
684 const char *buf, int buf_len)
686 const struct rocker_tlv *tlv;
687 const struct rocker_tlv *head = (const struct rocker_tlv *) buf;
690 memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1));
692 rocker_tlv_for_each(tlv, head, buf_len, rem) {
693 u32 type = rocker_tlv_type(tlv);
695 if (type > 0 && type <= maxtype)
696 tb[type] = (struct rocker_tlv *) tlv;
700 static void rocker_tlv_parse_nested(struct rocker_tlv **tb, int maxtype,
701 const struct rocker_tlv *tlv)
703 rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv),
704 rocker_tlv_len(tlv));
707 static void rocker_tlv_parse_desc(struct rocker_tlv **tb, int maxtype,
708 struct rocker_desc_info *desc_info)
710 rocker_tlv_parse(tb, maxtype, desc_info->data,
711 desc_info->desc->tlv_size);
714 static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info)
716 return (struct rocker_tlv *) ((char *) desc_info->data +
717 desc_info->tlv_size);
720 static int rocker_tlv_put(struct rocker_desc_info *desc_info,
721 int attrtype, int attrlen, const void *data)
723 int tail_room = desc_info->data_size - desc_info->tlv_size;
724 int total_size = rocker_tlv_total_size(attrlen);
725 struct rocker_tlv *tlv;
727 if (unlikely(tail_room < total_size))
730 tlv = rocker_tlv_start(desc_info);
731 desc_info->tlv_size += total_size;
732 tlv->type = attrtype;
733 tlv->len = rocker_tlv_attr_size(attrlen);
734 memcpy(rocker_tlv_data(tlv), data, attrlen);
735 memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen));
739 static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info,
740 int attrtype, u8 value)
742 return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value);
745 static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info,
746 int attrtype, u16 value)
748 return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value);
751 static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info,
752 int attrtype, __be16 value)
754 return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value);
757 static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info,
758 int attrtype, u32 value)
760 return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value);
763 static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info,
764 int attrtype, __be32 value)
766 return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value);
769 static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info,
770 int attrtype, u64 value)
772 return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value);
775 static struct rocker_tlv *
776 rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype)
778 struct rocker_tlv *start = rocker_tlv_start(desc_info);
780 if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0)
786 static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info,
787 struct rocker_tlv *start)
789 start->len = (char *) rocker_tlv_start(desc_info) - (char *) start;
792 static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info,
793 struct rocker_tlv *start)
795 desc_info->tlv_size = (char *) start - desc_info->data;
798 /******************************************
799 * DMA rings and descriptors manipulations
800 ******************************************/
802 static u32 __pos_inc(u32 pos, size_t limit)
804 return ++pos == limit ? 0 : pos;
807 static int rocker_desc_err(struct rocker_desc_info *desc_info)
809 int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN;
824 case -ROCKER_EMSGSIZE:
826 case -ROCKER_ENOTSUP:
828 case -ROCKER_ENOBUFS:
835 static void rocker_desc_gen_clear(struct rocker_desc_info *desc_info)
837 desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN;
840 static bool rocker_desc_gen(struct rocker_desc_info *desc_info)
842 u32 comp_err = desc_info->desc->comp_err;
844 return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false;
847 static void *rocker_desc_cookie_ptr_get(struct rocker_desc_info *desc_info)
849 return (void *)(uintptr_t)desc_info->desc->cookie;
852 static void rocker_desc_cookie_ptr_set(struct rocker_desc_info *desc_info,
855 desc_info->desc->cookie = (uintptr_t) ptr;
858 static struct rocker_desc_info *
859 rocker_desc_head_get(struct rocker_dma_ring_info *info)
861 static struct rocker_desc_info *desc_info;
862 u32 head = __pos_inc(info->head, info->size);
864 desc_info = &info->desc_info[info->head];
865 if (head == info->tail)
866 return NULL; /* ring full */
867 desc_info->tlv_size = 0;
871 static void rocker_desc_commit(struct rocker_desc_info *desc_info)
873 desc_info->desc->buf_size = desc_info->data_size;
874 desc_info->desc->tlv_size = desc_info->tlv_size;
877 static void rocker_desc_head_set(struct rocker *rocker,
878 struct rocker_dma_ring_info *info,
879 struct rocker_desc_info *desc_info)
881 u32 head = __pos_inc(info->head, info->size);
883 BUG_ON(head == info->tail);
884 rocker_desc_commit(desc_info);
886 rocker_write32(rocker, DMA_DESC_HEAD(info->type), head);
889 static struct rocker_desc_info *
890 rocker_desc_tail_get(struct rocker_dma_ring_info *info)
892 static struct rocker_desc_info *desc_info;
894 if (info->tail == info->head)
895 return NULL; /* nothing to be done between head and tail */
896 desc_info = &info->desc_info[info->tail];
897 if (!rocker_desc_gen(desc_info))
898 return NULL; /* gen bit not set, desc is not ready yet */
899 info->tail = __pos_inc(info->tail, info->size);
900 desc_info->tlv_size = desc_info->desc->tlv_size;
904 static void rocker_dma_ring_credits_set(struct rocker *rocker,
905 struct rocker_dma_ring_info *info,
909 rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits);
912 static unsigned long rocker_dma_ring_size_fix(size_t size)
914 return max(ROCKER_DMA_SIZE_MIN,
915 min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX));
918 static int rocker_dma_ring_create(struct rocker *rocker,
921 struct rocker_dma_ring_info *info)
925 BUG_ON(size != rocker_dma_ring_size_fix(size));
930 info->desc_info = kcalloc(info->size, sizeof(*info->desc_info),
932 if (!info->desc_info)
935 info->desc = pci_alloc_consistent(rocker->pdev,
936 info->size * sizeof(*info->desc),
939 kfree(info->desc_info);
943 for (i = 0; i < info->size; i++)
944 info->desc_info[i].desc = &info->desc[i];
946 rocker_write32(rocker, DMA_DESC_CTRL(info->type),
947 ROCKER_DMA_DESC_CTRL_RESET);
948 rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr);
949 rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size);
954 static void rocker_dma_ring_destroy(struct rocker *rocker,
955 struct rocker_dma_ring_info *info)
957 rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0);
959 pci_free_consistent(rocker->pdev,
960 info->size * sizeof(struct rocker_desc),
961 info->desc, info->mapaddr);
962 kfree(info->desc_info);
965 static void rocker_dma_ring_pass_to_producer(struct rocker *rocker,
966 struct rocker_dma_ring_info *info)
970 BUG_ON(info->head || info->tail);
972 /* When ring is consumer, we need to advance head for each desc.
973 * That tells hw that the desc is ready to be used by it.
975 for (i = 0; i < info->size - 1; i++)
976 rocker_desc_head_set(rocker, info, &info->desc_info[i]);
977 rocker_desc_commit(&info->desc_info[i]);
980 static int rocker_dma_ring_bufs_alloc(struct rocker *rocker,
981 struct rocker_dma_ring_info *info,
982 int direction, size_t buf_size)
984 struct pci_dev *pdev = rocker->pdev;
988 for (i = 0; i < info->size; i++) {
989 struct rocker_desc_info *desc_info = &info->desc_info[i];
990 struct rocker_desc *desc = &info->desc[i];
991 dma_addr_t dma_handle;
994 buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA);
1000 dma_handle = pci_map_single(pdev, buf, buf_size, direction);
1001 if (pci_dma_mapping_error(pdev, dma_handle)) {
1007 desc_info->data = buf;
1008 desc_info->data_size = buf_size;
1009 dma_unmap_addr_set(desc_info, mapaddr, dma_handle);
1011 desc->buf_addr = dma_handle;
1012 desc->buf_size = buf_size;
1017 for (i--; i >= 0; i--) {
1018 struct rocker_desc_info *desc_info = &info->desc_info[i];
1020 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1021 desc_info->data_size, direction);
1022 kfree(desc_info->data);
1027 static void rocker_dma_ring_bufs_free(struct rocker *rocker,
1028 struct rocker_dma_ring_info *info,
1031 struct pci_dev *pdev = rocker->pdev;
1034 for (i = 0; i < info->size; i++) {
1035 struct rocker_desc_info *desc_info = &info->desc_info[i];
1036 struct rocker_desc *desc = &info->desc[i];
1040 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1041 desc_info->data_size, direction);
1042 kfree(desc_info->data);
1046 static int rocker_dma_rings_init(struct rocker *rocker)
1048 struct pci_dev *pdev = rocker->pdev;
1051 err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD,
1052 ROCKER_DMA_CMD_DEFAULT_SIZE,
1055 dev_err(&pdev->dev, "failed to create command dma ring\n");
1059 spin_lock_init(&rocker->cmd_ring_lock);
1061 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring,
1062 PCI_DMA_BIDIRECTIONAL, PAGE_SIZE);
1064 dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n");
1065 goto err_dma_cmd_ring_bufs_alloc;
1068 err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT,
1069 ROCKER_DMA_EVENT_DEFAULT_SIZE,
1070 &rocker->event_ring);
1072 dev_err(&pdev->dev, "failed to create event dma ring\n");
1073 goto err_dma_event_ring_create;
1076 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring,
1077 PCI_DMA_FROMDEVICE, PAGE_SIZE);
1079 dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n");
1080 goto err_dma_event_ring_bufs_alloc;
1082 rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring);
1085 err_dma_event_ring_bufs_alloc:
1086 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1087 err_dma_event_ring_create:
1088 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1089 PCI_DMA_BIDIRECTIONAL);
1090 err_dma_cmd_ring_bufs_alloc:
1091 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1095 static void rocker_dma_rings_fini(struct rocker *rocker)
1097 rocker_dma_ring_bufs_free(rocker, &rocker->event_ring,
1098 PCI_DMA_BIDIRECTIONAL);
1099 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1100 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1101 PCI_DMA_BIDIRECTIONAL);
1102 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1105 static int rocker_dma_rx_ring_skb_map(struct rocker *rocker,
1106 struct rocker_port *rocker_port,
1107 struct rocker_desc_info *desc_info,
1108 struct sk_buff *skb, size_t buf_len)
1110 struct pci_dev *pdev = rocker->pdev;
1111 dma_addr_t dma_handle;
1113 dma_handle = pci_map_single(pdev, skb->data, buf_len,
1114 PCI_DMA_FROMDEVICE);
1115 if (pci_dma_mapping_error(pdev, dma_handle))
1117 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle))
1118 goto tlv_put_failure;
1119 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len))
1120 goto tlv_put_failure;
1124 pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE);
1125 desc_info->tlv_size = 0;
1129 static size_t rocker_port_rx_buf_len(struct rocker_port *rocker_port)
1131 return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
1134 static int rocker_dma_rx_ring_skb_alloc(struct rocker *rocker,
1135 struct rocker_port *rocker_port,
1136 struct rocker_desc_info *desc_info)
1138 struct net_device *dev = rocker_port->dev;
1139 struct sk_buff *skb;
1140 size_t buf_len = rocker_port_rx_buf_len(rocker_port);
1143 /* Ensure that hw will see tlv_size zero in case of an error.
1144 * That tells hw to use another descriptor.
1146 rocker_desc_cookie_ptr_set(desc_info, NULL);
1147 desc_info->tlv_size = 0;
1149 skb = netdev_alloc_skb_ip_align(dev, buf_len);
1152 err = rocker_dma_rx_ring_skb_map(rocker, rocker_port, desc_info,
1155 dev_kfree_skb_any(skb);
1158 rocker_desc_cookie_ptr_set(desc_info, skb);
1162 static void rocker_dma_rx_ring_skb_unmap(struct rocker *rocker,
1163 struct rocker_tlv **attrs)
1165 struct pci_dev *pdev = rocker->pdev;
1166 dma_addr_t dma_handle;
1169 if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] ||
1170 !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN])
1172 dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]);
1173 len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]);
1174 pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE);
1177 static void rocker_dma_rx_ring_skb_free(struct rocker *rocker,
1178 struct rocker_desc_info *desc_info)
1180 struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
1181 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
1185 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
1186 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
1187 dev_kfree_skb_any(skb);
1190 static int rocker_dma_rx_ring_skbs_alloc(struct rocker *rocker,
1191 struct rocker_port *rocker_port)
1193 struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
1197 for (i = 0; i < rx_ring->size; i++) {
1198 err = rocker_dma_rx_ring_skb_alloc(rocker, rocker_port,
1199 &rx_ring->desc_info[i]);
1206 for (i--; i >= 0; i--)
1207 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1211 static void rocker_dma_rx_ring_skbs_free(struct rocker *rocker,
1212 struct rocker_port *rocker_port)
1214 struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
1217 for (i = 0; i < rx_ring->size; i++)
1218 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1221 static int rocker_port_dma_rings_init(struct rocker_port *rocker_port)
1223 struct rocker *rocker = rocker_port->rocker;
1226 err = rocker_dma_ring_create(rocker,
1227 ROCKER_DMA_TX(rocker_port->port_number),
1228 ROCKER_DMA_TX_DEFAULT_SIZE,
1229 &rocker_port->tx_ring);
1231 netdev_err(rocker_port->dev, "failed to create tx dma ring\n");
1235 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring,
1237 ROCKER_DMA_TX_DESC_SIZE);
1239 netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n");
1240 goto err_dma_tx_ring_bufs_alloc;
1243 err = rocker_dma_ring_create(rocker,
1244 ROCKER_DMA_RX(rocker_port->port_number),
1245 ROCKER_DMA_RX_DEFAULT_SIZE,
1246 &rocker_port->rx_ring);
1248 netdev_err(rocker_port->dev, "failed to create rx dma ring\n");
1249 goto err_dma_rx_ring_create;
1252 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring,
1253 PCI_DMA_BIDIRECTIONAL,
1254 ROCKER_DMA_RX_DESC_SIZE);
1256 netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n");
1257 goto err_dma_rx_ring_bufs_alloc;
1260 err = rocker_dma_rx_ring_skbs_alloc(rocker, rocker_port);
1262 netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n");
1263 goto err_dma_rx_ring_skbs_alloc;
1265 rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring);
1269 err_dma_rx_ring_skbs_alloc:
1270 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1271 PCI_DMA_BIDIRECTIONAL);
1272 err_dma_rx_ring_bufs_alloc:
1273 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1274 err_dma_rx_ring_create:
1275 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1277 err_dma_tx_ring_bufs_alloc:
1278 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1282 static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port)
1284 struct rocker *rocker = rocker_port->rocker;
1286 rocker_dma_rx_ring_skbs_free(rocker, rocker_port);
1287 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1288 PCI_DMA_BIDIRECTIONAL);
1289 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1290 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1292 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1295 static void rocker_port_set_enable(struct rocker_port *rocker_port, bool enable)
1297 u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);
1300 val |= 1ULL << rocker_port->pport;
1302 val &= ~(1ULL << rocker_port->pport);
1303 rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
1306 /********************************
1307 * Interrupt handler and helpers
1308 ********************************/
1310 static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id)
1312 struct rocker *rocker = dev_id;
1313 struct rocker_desc_info *desc_info;
1314 struct rocker_wait *wait;
1317 spin_lock(&rocker->cmd_ring_lock);
1318 while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) {
1319 wait = rocker_desc_cookie_ptr_get(desc_info);
1321 rocker_desc_gen_clear(desc_info);
1322 rocker_wait_destroy(wait);
1324 rocker_wait_wake_up(wait);
1328 spin_unlock(&rocker->cmd_ring_lock);
1329 rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits);
1334 static void rocker_port_link_up(struct rocker_port *rocker_port)
1336 netif_carrier_on(rocker_port->dev);
1337 netdev_info(rocker_port->dev, "Link is up\n");
1340 static void rocker_port_link_down(struct rocker_port *rocker_port)
1342 netif_carrier_off(rocker_port->dev);
1343 netdev_info(rocker_port->dev, "Link is down\n");
1346 static int rocker_event_link_change(struct rocker *rocker,
1347 const struct rocker_tlv *info)
1349 struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1];
1350 unsigned int port_number;
1352 struct rocker_port *rocker_port;
1354 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info);
1355 if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] ||
1356 !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP])
1359 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1;
1360 link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]);
1362 if (port_number >= rocker->port_count)
1365 rocker_port = rocker->ports[port_number];
1366 if (netif_carrier_ok(rocker_port->dev) != link_up) {
1368 rocker_port_link_up(rocker_port);
1370 rocker_port_link_down(rocker_port);
1376 #define ROCKER_OP_FLAG_REMOVE BIT(0)
1377 #define ROCKER_OP_FLAG_NOWAIT BIT(1)
1378 #define ROCKER_OP_FLAG_LEARNED BIT(2)
1379 #define ROCKER_OP_FLAG_REFRESH BIT(3)
1381 static int rocker_port_fdb(struct rocker_port *rocker_port,
1382 const unsigned char *addr,
1383 __be16 vlan_id, int flags);
1385 static int rocker_event_mac_vlan_seen(struct rocker *rocker,
1386 const struct rocker_tlv *info)
1388 struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1];
1389 unsigned int port_number;
1390 struct rocker_port *rocker_port;
1391 unsigned char *addr;
1392 int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_LEARNED;
1395 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info);
1396 if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] ||
1397 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] ||
1398 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID])
1401 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1;
1402 addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]);
1403 vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]);
1405 if (port_number >= rocker->port_count)
1408 rocker_port = rocker->ports[port_number];
1410 if (rocker_port->stp_state != BR_STATE_LEARNING &&
1411 rocker_port->stp_state != BR_STATE_FORWARDING)
1414 return rocker_port_fdb(rocker_port, addr, vlan_id, flags);
1417 static int rocker_event_process(struct rocker *rocker,
1418 struct rocker_desc_info *desc_info)
1420 struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1];
1421 struct rocker_tlv *info;
1424 rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info);
1425 if (!attrs[ROCKER_TLV_EVENT_TYPE] ||
1426 !attrs[ROCKER_TLV_EVENT_INFO])
1429 type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]);
1430 info = attrs[ROCKER_TLV_EVENT_INFO];
1433 case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED:
1434 return rocker_event_link_change(rocker, info);
1435 case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN:
1436 return rocker_event_mac_vlan_seen(rocker, info);
1442 static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id)
1444 struct rocker *rocker = dev_id;
1445 struct pci_dev *pdev = rocker->pdev;
1446 struct rocker_desc_info *desc_info;
1450 while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) {
1451 err = rocker_desc_err(desc_info);
1453 dev_err(&pdev->dev, "event desc received with err %d\n",
1456 err = rocker_event_process(rocker, desc_info);
1458 dev_err(&pdev->dev, "event processing failed with err %d\n",
1461 rocker_desc_gen_clear(desc_info);
1462 rocker_desc_head_set(rocker, &rocker->event_ring, desc_info);
1465 rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits);
1470 static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id)
1472 struct rocker_port *rocker_port = dev_id;
1474 napi_schedule(&rocker_port->napi_tx);
1478 static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id)
1480 struct rocker_port *rocker_port = dev_id;
1482 napi_schedule(&rocker_port->napi_rx);
1486 /********************
1488 ********************/
1490 typedef int (*rocker_cmd_cb_t)(struct rocker *rocker,
1491 struct rocker_port *rocker_port,
1492 struct rocker_desc_info *desc_info,
1495 static int rocker_cmd_exec(struct rocker *rocker,
1496 struct rocker_port *rocker_port,
1497 rocker_cmd_cb_t prepare, void *prepare_priv,
1498 rocker_cmd_cb_t process, void *process_priv,
1501 struct rocker_desc_info *desc_info;
1502 struct rocker_wait *wait;
1503 unsigned long flags;
1506 wait = rocker_wait_create(nowait ? GFP_ATOMIC : GFP_KERNEL);
1509 wait->nowait = nowait;
1511 spin_lock_irqsave(&rocker->cmd_ring_lock, flags);
1512 desc_info = rocker_desc_head_get(&rocker->cmd_ring);
1514 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1518 err = prepare(rocker, rocker_port, desc_info, prepare_priv);
1520 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1523 rocker_desc_cookie_ptr_set(desc_info, wait);
1524 rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);
1525 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1530 if (!rocker_wait_event_timeout(wait, HZ / 10))
1533 err = rocker_desc_err(desc_info);
1538 err = process(rocker, rocker_port, desc_info, process_priv);
1540 rocker_desc_gen_clear(desc_info);
1542 rocker_wait_destroy(wait);
1547 rocker_cmd_get_port_settings_prep(struct rocker *rocker,
1548 struct rocker_port *rocker_port,
1549 struct rocker_desc_info *desc_info,
1552 struct rocker_tlv *cmd_info;
1554 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1555 ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS))
1557 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1560 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1561 rocker_port->pport))
1563 rocker_tlv_nest_end(desc_info, cmd_info);
1568 rocker_cmd_get_port_settings_ethtool_proc(struct rocker *rocker,
1569 struct rocker_port *rocker_port,
1570 struct rocker_desc_info *desc_info,
1573 struct ethtool_cmd *ecmd = priv;
1574 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1575 struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1580 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1581 if (!attrs[ROCKER_TLV_CMD_INFO])
1584 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1585 attrs[ROCKER_TLV_CMD_INFO]);
1586 if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] ||
1587 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] ||
1588 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG])
1591 speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]);
1592 duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]);
1593 autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]);
1595 ecmd->transceiver = XCVR_INTERNAL;
1596 ecmd->supported = SUPPORTED_TP;
1597 ecmd->phy_address = 0xff;
1598 ecmd->port = PORT_TP;
1599 ethtool_cmd_speed_set(ecmd, speed);
1600 ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF;
1601 ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
1607 rocker_cmd_get_port_settings_macaddr_proc(struct rocker *rocker,
1608 struct rocker_port *rocker_port,
1609 struct rocker_desc_info *desc_info,
1612 unsigned char *macaddr = priv;
1613 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1614 struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1615 struct rocker_tlv *attr;
1617 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1618 if (!attrs[ROCKER_TLV_CMD_INFO])
1621 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1622 attrs[ROCKER_TLV_CMD_INFO]);
1623 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR];
1627 if (rocker_tlv_len(attr) != ETH_ALEN)
1630 ether_addr_copy(macaddr, rocker_tlv_data(attr));
1640 rocker_cmd_get_port_settings_phys_name_proc(struct rocker *rocker,
1641 struct rocker_port *rocker_port,
1642 struct rocker_desc_info *desc_info,
1645 struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1646 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1647 struct port_name *name = priv;
1648 struct rocker_tlv *attr;
1652 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1653 if (!attrs[ROCKER_TLV_CMD_INFO])
1656 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1657 attrs[ROCKER_TLV_CMD_INFO]);
1658 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME];
1662 len = min_t(size_t, rocker_tlv_len(attr), name->len);
1663 str = rocker_tlv_data(attr);
1665 /* make sure name only contains alphanumeric characters */
1666 for (i = j = 0; i < len; ++i) {
1667 if (isalnum(str[i])) {
1668 name->buf[j] = str[i];
1676 name->buf[j] = '\0';
1682 rocker_cmd_set_port_settings_ethtool_prep(struct rocker *rocker,
1683 struct rocker_port *rocker_port,
1684 struct rocker_desc_info *desc_info,
1687 struct ethtool_cmd *ecmd = priv;
1688 struct rocker_tlv *cmd_info;
1690 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1691 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1693 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1696 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1697 rocker_port->pport))
1699 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED,
1700 ethtool_cmd_speed(ecmd)))
1702 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,
1705 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG,
1708 rocker_tlv_nest_end(desc_info, cmd_info);
1713 rocker_cmd_set_port_settings_macaddr_prep(struct rocker *rocker,
1714 struct rocker_port *rocker_port,
1715 struct rocker_desc_info *desc_info,
1718 unsigned char *macaddr = priv;
1719 struct rocker_tlv *cmd_info;
1721 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1722 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1724 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1727 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1728 rocker_port->pport))
1730 if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR,
1733 rocker_tlv_nest_end(desc_info, cmd_info);
1738 rocker_cmd_set_port_learning_prep(struct rocker *rocker,
1739 struct rocker_port *rocker_port,
1740 struct rocker_desc_info *desc_info,
1743 struct rocker_tlv *cmd_info;
1745 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1746 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1748 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1751 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1752 rocker_port->pport))
1754 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING,
1755 !!(rocker_port->brport_flags & BR_LEARNING)))
1757 rocker_tlv_nest_end(desc_info, cmd_info);
1761 static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
1762 struct ethtool_cmd *ecmd)
1764 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1765 rocker_cmd_get_port_settings_prep, NULL,
1766 rocker_cmd_get_port_settings_ethtool_proc,
1770 static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
1771 unsigned char *macaddr)
1773 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1774 rocker_cmd_get_port_settings_prep, NULL,
1775 rocker_cmd_get_port_settings_macaddr_proc,
1779 static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
1780 struct ethtool_cmd *ecmd)
1782 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1783 rocker_cmd_set_port_settings_ethtool_prep,
1784 ecmd, NULL, NULL, false);
1787 static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
1788 unsigned char *macaddr)
1790 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1791 rocker_cmd_set_port_settings_macaddr_prep,
1792 macaddr, NULL, NULL, false);
1795 static int rocker_port_set_learning(struct rocker_port *rocker_port)
1797 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
1798 rocker_cmd_set_port_learning_prep,
1799 NULL, NULL, NULL, false);
1802 static int rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info,
1803 struct rocker_flow_tbl_entry *entry)
1805 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1806 entry->key.ig_port.in_pport))
1808 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1809 entry->key.ig_port.in_pport_mask))
1811 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1812 entry->key.ig_port.goto_tbl))
1818 static int rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info,
1819 struct rocker_flow_tbl_entry *entry)
1821 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1822 entry->key.vlan.in_pport))
1824 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1825 entry->key.vlan.vlan_id))
1827 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1828 entry->key.vlan.vlan_id_mask))
1830 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1831 entry->key.vlan.goto_tbl))
1833 if (entry->key.vlan.untagged &&
1834 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID,
1835 entry->key.vlan.new_vlan_id))
1841 static int rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info,
1842 struct rocker_flow_tbl_entry *entry)
1844 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1845 entry->key.term_mac.in_pport))
1847 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1848 entry->key.term_mac.in_pport_mask))
1850 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1851 entry->key.term_mac.eth_type))
1853 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1854 ETH_ALEN, entry->key.term_mac.eth_dst))
1856 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1857 ETH_ALEN, entry->key.term_mac.eth_dst_mask))
1859 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1860 entry->key.term_mac.vlan_id))
1862 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1863 entry->key.term_mac.vlan_id_mask))
1865 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1866 entry->key.term_mac.goto_tbl))
1868 if (entry->key.term_mac.copy_to_cpu &&
1869 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
1870 entry->key.term_mac.copy_to_cpu))
1877 rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info,
1878 struct rocker_flow_tbl_entry *entry)
1880 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1881 entry->key.ucast_routing.eth_type))
1883 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP,
1884 entry->key.ucast_routing.dst4))
1886 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK,
1887 entry->key.ucast_routing.dst4_mask))
1889 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1890 entry->key.ucast_routing.goto_tbl))
1892 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
1893 entry->key.ucast_routing.group_id))
1899 static int rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info,
1900 struct rocker_flow_tbl_entry *entry)
1902 if (entry->key.bridge.has_eth_dst &&
1903 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1904 ETH_ALEN, entry->key.bridge.eth_dst))
1906 if (entry->key.bridge.has_eth_dst_mask &&
1907 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1908 ETH_ALEN, entry->key.bridge.eth_dst_mask))
1910 if (entry->key.bridge.vlan_id &&
1911 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1912 entry->key.bridge.vlan_id))
1914 if (entry->key.bridge.tunnel_id &&
1915 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID,
1916 entry->key.bridge.tunnel_id))
1918 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1919 entry->key.bridge.goto_tbl))
1921 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
1922 entry->key.bridge.group_id))
1924 if (entry->key.bridge.copy_to_cpu &&
1925 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
1926 entry->key.bridge.copy_to_cpu))
1932 static int rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info,
1933 struct rocker_flow_tbl_entry *entry)
1935 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1936 entry->key.acl.in_pport))
1938 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1939 entry->key.acl.in_pport_mask))
1941 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
1942 ETH_ALEN, entry->key.acl.eth_src))
1944 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK,
1945 ETH_ALEN, entry->key.acl.eth_src_mask))
1947 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1948 ETH_ALEN, entry->key.acl.eth_dst))
1950 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1951 ETH_ALEN, entry->key.acl.eth_dst_mask))
1953 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1954 entry->key.acl.eth_type))
1956 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1957 entry->key.acl.vlan_id))
1959 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1960 entry->key.acl.vlan_id_mask))
1963 switch (ntohs(entry->key.acl.eth_type)) {
1966 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO,
1967 entry->key.acl.ip_proto))
1969 if (rocker_tlv_put_u8(desc_info,
1970 ROCKER_TLV_OF_DPA_IP_PROTO_MASK,
1971 entry->key.acl.ip_proto_mask))
1973 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP,
1974 entry->key.acl.ip_tos & 0x3f))
1976 if (rocker_tlv_put_u8(desc_info,
1977 ROCKER_TLV_OF_DPA_IP_DSCP_MASK,
1978 entry->key.acl.ip_tos_mask & 0x3f))
1980 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN,
1981 (entry->key.acl.ip_tos & 0xc0) >> 6))
1983 if (rocker_tlv_put_u8(desc_info,
1984 ROCKER_TLV_OF_DPA_IP_ECN_MASK,
1985 (entry->key.acl.ip_tos_mask & 0xc0) >> 6))
1990 if (entry->key.acl.group_id != ROCKER_GROUP_NONE &&
1991 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
1992 entry->key.acl.group_id))
1998 static int rocker_cmd_flow_tbl_add(struct rocker *rocker,
1999 struct rocker_port *rocker_port,
2000 struct rocker_desc_info *desc_info,
2003 struct rocker_flow_tbl_entry *entry = priv;
2004 struct rocker_tlv *cmd_info;
2007 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2009 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2012 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID,
2015 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY,
2016 entry->key.priority))
2018 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0))
2020 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2024 switch (entry->key.tbl_id) {
2025 case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT:
2026 err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry);
2028 case ROCKER_OF_DPA_TABLE_ID_VLAN:
2029 err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry);
2031 case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC:
2032 err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry);
2034 case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING:
2035 err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry);
2037 case ROCKER_OF_DPA_TABLE_ID_BRIDGING:
2038 err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry);
2040 case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY:
2041 err = rocker_cmd_flow_tbl_add_acl(desc_info, entry);
2051 rocker_tlv_nest_end(desc_info, cmd_info);
2056 static int rocker_cmd_flow_tbl_del(struct rocker *rocker,
2057 struct rocker_port *rocker_port,
2058 struct rocker_desc_info *desc_info,
2061 const struct rocker_flow_tbl_entry *entry = priv;
2062 struct rocker_tlv *cmd_info;
2064 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2066 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2069 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2072 rocker_tlv_nest_end(desc_info, cmd_info);
2078 rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info,
2079 struct rocker_group_tbl_entry *entry)
2081 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT,
2082 ROCKER_GROUP_PORT_GET(entry->group_id)))
2084 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN,
2085 entry->l2_interface.pop_vlan))
2092 rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info,
2093 struct rocker_group_tbl_entry *entry)
2095 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2096 entry->l2_rewrite.group_id))
2098 if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) &&
2099 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2100 ETH_ALEN, entry->l2_rewrite.eth_src))
2102 if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) &&
2103 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2104 ETH_ALEN, entry->l2_rewrite.eth_dst))
2106 if (entry->l2_rewrite.vlan_id &&
2107 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2108 entry->l2_rewrite.vlan_id))
2115 rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info,
2116 struct rocker_group_tbl_entry *entry)
2119 struct rocker_tlv *group_ids;
2121 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT,
2122 entry->group_count))
2125 group_ids = rocker_tlv_nest_start(desc_info,
2126 ROCKER_TLV_OF_DPA_GROUP_IDS);
2130 for (i = 0; i < entry->group_count; i++)
2131 /* Note TLV array is 1-based */
2132 if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i]))
2135 rocker_tlv_nest_end(desc_info, group_ids);
2141 rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info,
2142 struct rocker_group_tbl_entry *entry)
2144 if (!is_zero_ether_addr(entry->l3_unicast.eth_src) &&
2145 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2146 ETH_ALEN, entry->l3_unicast.eth_src))
2148 if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) &&
2149 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2150 ETH_ALEN, entry->l3_unicast.eth_dst))
2152 if (entry->l3_unicast.vlan_id &&
2153 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2154 entry->l3_unicast.vlan_id))
2156 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK,
2157 entry->l3_unicast.ttl_check))
2159 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2160 entry->l3_unicast.group_id))
2166 static int rocker_cmd_group_tbl_add(struct rocker *rocker,
2167 struct rocker_port *rocker_port,
2168 struct rocker_desc_info *desc_info,
2171 struct rocker_group_tbl_entry *entry = priv;
2172 struct rocker_tlv *cmd_info;
2175 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2177 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2181 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2185 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2186 case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE:
2187 err = rocker_cmd_group_tbl_add_l2_interface(desc_info, entry);
2189 case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE:
2190 err = rocker_cmd_group_tbl_add_l2_rewrite(desc_info, entry);
2192 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2193 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
2194 err = rocker_cmd_group_tbl_add_group_ids(desc_info, entry);
2196 case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST:
2197 err = rocker_cmd_group_tbl_add_l3_unicast(desc_info, entry);
2207 rocker_tlv_nest_end(desc_info, cmd_info);
2212 static int rocker_cmd_group_tbl_del(struct rocker *rocker,
2213 struct rocker_port *rocker_port,
2214 struct rocker_desc_info *desc_info,
2217 const struct rocker_group_tbl_entry *entry = priv;
2218 struct rocker_tlv *cmd_info;
2220 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2222 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2225 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2228 rocker_tlv_nest_end(desc_info, cmd_info);
2233 /***************************************************
2234 * Flow, group, FDB, internal VLAN and neigh tables
2235 ***************************************************/
2237 static int rocker_init_tbls(struct rocker *rocker)
2239 hash_init(rocker->flow_tbl);
2240 spin_lock_init(&rocker->flow_tbl_lock);
2242 hash_init(rocker->group_tbl);
2243 spin_lock_init(&rocker->group_tbl_lock);
2245 hash_init(rocker->fdb_tbl);
2246 spin_lock_init(&rocker->fdb_tbl_lock);
2248 hash_init(rocker->internal_vlan_tbl);
2249 spin_lock_init(&rocker->internal_vlan_tbl_lock);
2251 hash_init(rocker->neigh_tbl);
2252 spin_lock_init(&rocker->neigh_tbl_lock);
2257 static void rocker_free_tbls(struct rocker *rocker)
2259 unsigned long flags;
2260 struct rocker_flow_tbl_entry *flow_entry;
2261 struct rocker_group_tbl_entry *group_entry;
2262 struct rocker_fdb_tbl_entry *fdb_entry;
2263 struct rocker_internal_vlan_tbl_entry *internal_vlan_entry;
2264 struct rocker_neigh_tbl_entry *neigh_entry;
2265 struct hlist_node *tmp;
2268 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2269 hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry)
2270 hash_del(&flow_entry->entry);
2271 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2273 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2274 hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry)
2275 hash_del(&group_entry->entry);
2276 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2278 spin_lock_irqsave(&rocker->fdb_tbl_lock, flags);
2279 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry)
2280 hash_del(&fdb_entry->entry);
2281 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags);
2283 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags);
2284 hash_for_each_safe(rocker->internal_vlan_tbl, bkt,
2285 tmp, internal_vlan_entry, entry)
2286 hash_del(&internal_vlan_entry->entry);
2287 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags);
2289 spin_lock_irqsave(&rocker->neigh_tbl_lock, flags);
2290 hash_for_each_safe(rocker->neigh_tbl, bkt, tmp, neigh_entry, entry)
2291 hash_del(&neigh_entry->entry);
2292 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, flags);
2295 static struct rocker_flow_tbl_entry *
2296 rocker_flow_tbl_find(struct rocker *rocker, struct rocker_flow_tbl_entry *match)
2298 struct rocker_flow_tbl_entry *found;
2299 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
2301 hash_for_each_possible(rocker->flow_tbl, found,
2302 entry, match->key_crc32) {
2303 if (memcmp(&found->key, &match->key, key_len) == 0)
2310 static int rocker_flow_tbl_add(struct rocker_port *rocker_port,
2311 struct rocker_flow_tbl_entry *match,
2314 struct rocker *rocker = rocker_port->rocker;
2315 struct rocker_flow_tbl_entry *found;
2316 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
2317 unsigned long flags;
2319 match->key_crc32 = crc32(~0, &match->key, key_len);
2321 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2323 found = rocker_flow_tbl_find(rocker, match);
2326 match->cookie = found->cookie;
2327 hash_del(&found->entry);
2330 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD;
2333 found->cookie = rocker->flow_tbl_next_cookie++;
2334 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD;
2337 hash_add(rocker->flow_tbl, &found->entry, found->key_crc32);
2339 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2341 return rocker_cmd_exec(rocker, rocker_port,
2342 rocker_cmd_flow_tbl_add,
2343 found, NULL, NULL, nowait);
2346 static int rocker_flow_tbl_del(struct rocker_port *rocker_port,
2347 struct rocker_flow_tbl_entry *match,
2350 struct rocker *rocker = rocker_port->rocker;
2351 struct rocker_flow_tbl_entry *found;
2352 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
2353 unsigned long flags;
2356 match->key_crc32 = crc32(~0, &match->key, key_len);
2358 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2360 found = rocker_flow_tbl_find(rocker, match);
2363 hash_del(&found->entry);
2364 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL;
2367 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2372 err = rocker_cmd_exec(rocker, rocker_port,
2373 rocker_cmd_flow_tbl_del,
2374 found, NULL, NULL, nowait);
2381 static gfp_t rocker_op_flags_gfp(int flags)
2383 return flags & ROCKER_OP_FLAG_NOWAIT ? GFP_ATOMIC : GFP_KERNEL;
2386 static int rocker_flow_tbl_do(struct rocker_port *rocker_port,
2387 int flags, struct rocker_flow_tbl_entry *entry)
2389 bool nowait = flags & ROCKER_OP_FLAG_NOWAIT;
2391 if (flags & ROCKER_OP_FLAG_REMOVE)
2392 return rocker_flow_tbl_del(rocker_port, entry, nowait);
2394 return rocker_flow_tbl_add(rocker_port, entry, nowait);
2397 static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port,
2398 int flags, u32 in_pport, u32 in_pport_mask,
2399 enum rocker_of_dpa_table_id goto_tbl)
2401 struct rocker_flow_tbl_entry *entry;
2403 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2407 entry->key.priority = ROCKER_PRIORITY_IG_PORT;
2408 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT;
2409 entry->key.ig_port.in_pport = in_pport;
2410 entry->key.ig_port.in_pport_mask = in_pport_mask;
2411 entry->key.ig_port.goto_tbl = goto_tbl;
2413 return rocker_flow_tbl_do(rocker_port, flags, entry);
2416 static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port,
2417 int flags, u32 in_pport,
2418 __be16 vlan_id, __be16 vlan_id_mask,
2419 enum rocker_of_dpa_table_id goto_tbl,
2420 bool untagged, __be16 new_vlan_id)
2422 struct rocker_flow_tbl_entry *entry;
2424 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2428 entry->key.priority = ROCKER_PRIORITY_VLAN;
2429 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN;
2430 entry->key.vlan.in_pport = in_pport;
2431 entry->key.vlan.vlan_id = vlan_id;
2432 entry->key.vlan.vlan_id_mask = vlan_id_mask;
2433 entry->key.vlan.goto_tbl = goto_tbl;
2435 entry->key.vlan.untagged = untagged;
2436 entry->key.vlan.new_vlan_id = new_vlan_id;
2438 return rocker_flow_tbl_do(rocker_port, flags, entry);
2441 static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port,
2442 u32 in_pport, u32 in_pport_mask,
2443 __be16 eth_type, const u8 *eth_dst,
2444 const u8 *eth_dst_mask, __be16 vlan_id,
2445 __be16 vlan_id_mask, bool copy_to_cpu,
2448 struct rocker_flow_tbl_entry *entry;
2450 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2454 if (is_multicast_ether_addr(eth_dst)) {
2455 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST;
2456 entry->key.term_mac.goto_tbl =
2457 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING;
2459 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST;
2460 entry->key.term_mac.goto_tbl =
2461 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2464 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
2465 entry->key.term_mac.in_pport = in_pport;
2466 entry->key.term_mac.in_pport_mask = in_pport_mask;
2467 entry->key.term_mac.eth_type = eth_type;
2468 ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst);
2469 ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask);
2470 entry->key.term_mac.vlan_id = vlan_id;
2471 entry->key.term_mac.vlan_id_mask = vlan_id_mask;
2472 entry->key.term_mac.copy_to_cpu = copy_to_cpu;
2474 return rocker_flow_tbl_do(rocker_port, flags, entry);
2477 static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port,
2479 const u8 *eth_dst, const u8 *eth_dst_mask,
2480 __be16 vlan_id, u32 tunnel_id,
2481 enum rocker_of_dpa_table_id goto_tbl,
2482 u32 group_id, bool copy_to_cpu)
2484 struct rocker_flow_tbl_entry *entry;
2486 bool vlan_bridging = !!vlan_id;
2487 bool dflt = !eth_dst || (eth_dst && eth_dst_mask);
2490 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2494 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING;
2497 entry->key.bridge.has_eth_dst = 1;
2498 ether_addr_copy(entry->key.bridge.eth_dst, eth_dst);
2501 entry->key.bridge.has_eth_dst_mask = 1;
2502 ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask);
2503 if (memcmp(eth_dst_mask, ff_mac, ETH_ALEN))
2507 priority = ROCKER_PRIORITY_UNKNOWN;
2508 if (vlan_bridging && dflt && wild)
2509 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD;
2510 else if (vlan_bridging && dflt && !wild)
2511 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT;
2512 else if (vlan_bridging && !dflt)
2513 priority = ROCKER_PRIORITY_BRIDGING_VLAN;
2514 else if (!vlan_bridging && dflt && wild)
2515 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD;
2516 else if (!vlan_bridging && dflt && !wild)
2517 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT;
2518 else if (!vlan_bridging && !dflt)
2519 priority = ROCKER_PRIORITY_BRIDGING_TENANT;
2521 entry->key.priority = priority;
2522 entry->key.bridge.vlan_id = vlan_id;
2523 entry->key.bridge.tunnel_id = tunnel_id;
2524 entry->key.bridge.goto_tbl = goto_tbl;
2525 entry->key.bridge.group_id = group_id;
2526 entry->key.bridge.copy_to_cpu = copy_to_cpu;
2528 return rocker_flow_tbl_do(rocker_port, flags, entry);
2531 static int rocker_flow_tbl_ucast4_routing(struct rocker_port *rocker_port,
2532 __be16 eth_type, __be32 dst,
2533 __be32 dst_mask, u32 priority,
2534 enum rocker_of_dpa_table_id goto_tbl,
2535 u32 group_id, int flags)
2537 struct rocker_flow_tbl_entry *entry;
2539 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2543 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2544 entry->key.priority = priority;
2545 entry->key.ucast_routing.eth_type = eth_type;
2546 entry->key.ucast_routing.dst4 = dst;
2547 entry->key.ucast_routing.dst4_mask = dst_mask;
2548 entry->key.ucast_routing.goto_tbl = goto_tbl;
2549 entry->key.ucast_routing.group_id = group_id;
2550 entry->key_len = offsetof(struct rocker_flow_tbl_key,
2551 ucast_routing.group_id);
2553 return rocker_flow_tbl_do(rocker_port, flags, entry);
2556 static int rocker_flow_tbl_acl(struct rocker_port *rocker_port,
2557 int flags, u32 in_pport,
2559 const u8 *eth_src, const u8 *eth_src_mask,
2560 const u8 *eth_dst, const u8 *eth_dst_mask,
2562 __be16 vlan_id, __be16 vlan_id_mask,
2563 u8 ip_proto, u8 ip_proto_mask,
2564 u8 ip_tos, u8 ip_tos_mask,
2568 struct rocker_flow_tbl_entry *entry;
2570 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2574 priority = ROCKER_PRIORITY_ACL_NORMAL;
2575 if (eth_dst && eth_dst_mask) {
2576 if (memcmp(eth_dst_mask, mcast_mac, ETH_ALEN) == 0)
2577 priority = ROCKER_PRIORITY_ACL_DFLT;
2578 else if (is_link_local_ether_addr(eth_dst))
2579 priority = ROCKER_PRIORITY_ACL_CTRL;
2582 entry->key.priority = priority;
2583 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2584 entry->key.acl.in_pport = in_pport;
2585 entry->key.acl.in_pport_mask = in_pport_mask;
2588 ether_addr_copy(entry->key.acl.eth_src, eth_src);
2590 ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask);
2592 ether_addr_copy(entry->key.acl.eth_dst, eth_dst);
2594 ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask);
2596 entry->key.acl.eth_type = eth_type;
2597 entry->key.acl.vlan_id = vlan_id;
2598 entry->key.acl.vlan_id_mask = vlan_id_mask;
2599 entry->key.acl.ip_proto = ip_proto;
2600 entry->key.acl.ip_proto_mask = ip_proto_mask;
2601 entry->key.acl.ip_tos = ip_tos;
2602 entry->key.acl.ip_tos_mask = ip_tos_mask;
2603 entry->key.acl.group_id = group_id;
2605 return rocker_flow_tbl_do(rocker_port, flags, entry);
2608 static struct rocker_group_tbl_entry *
2609 rocker_group_tbl_find(struct rocker *rocker,
2610 struct rocker_group_tbl_entry *match)
2612 struct rocker_group_tbl_entry *found;
2614 hash_for_each_possible(rocker->group_tbl, found,
2615 entry, match->group_id) {
2616 if (found->group_id == match->group_id)
2623 static void rocker_group_tbl_entry_free(struct rocker_group_tbl_entry *entry)
2625 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2626 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2627 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
2628 kfree(entry->group_ids);
2636 static int rocker_group_tbl_add(struct rocker_port *rocker_port,
2637 struct rocker_group_tbl_entry *match,
2640 struct rocker *rocker = rocker_port->rocker;
2641 struct rocker_group_tbl_entry *found;
2642 unsigned long flags;
2644 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2646 found = rocker_group_tbl_find(rocker, match);
2649 hash_del(&found->entry);
2650 rocker_group_tbl_entry_free(found);
2652 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD;
2655 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD;
2658 hash_add(rocker->group_tbl, &found->entry, found->group_id);
2660 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2662 return rocker_cmd_exec(rocker, rocker_port,
2663 rocker_cmd_group_tbl_add,
2664 found, NULL, NULL, nowait);
2667 static int rocker_group_tbl_del(struct rocker_port *rocker_port,
2668 struct rocker_group_tbl_entry *match,
2671 struct rocker *rocker = rocker_port->rocker;
2672 struct rocker_group_tbl_entry *found;
2673 unsigned long flags;
2676 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2678 found = rocker_group_tbl_find(rocker, match);
2681 hash_del(&found->entry);
2682 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL;
2685 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2687 rocker_group_tbl_entry_free(match);
2690 err = rocker_cmd_exec(rocker, rocker_port,
2691 rocker_cmd_group_tbl_del,
2692 found, NULL, NULL, nowait);
2693 rocker_group_tbl_entry_free(found);
2699 static int rocker_group_tbl_do(struct rocker_port *rocker_port,
2700 int flags, struct rocker_group_tbl_entry *entry)
2702 bool nowait = flags & ROCKER_OP_FLAG_NOWAIT;
2704 if (flags & ROCKER_OP_FLAG_REMOVE)
2705 return rocker_group_tbl_del(rocker_port, entry, nowait);
2707 return rocker_group_tbl_add(rocker_port, entry, nowait);
2710 static int rocker_group_l2_interface(struct rocker_port *rocker_port,
2711 int flags, __be16 vlan_id,
2712 u32 out_pport, int pop_vlan)
2714 struct rocker_group_tbl_entry *entry;
2716 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2720 entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
2721 entry->l2_interface.pop_vlan = pop_vlan;
2723 return rocker_group_tbl_do(rocker_port, flags, entry);
2726 static int rocker_group_l2_fan_out(struct rocker_port *rocker_port,
2727 int flags, u8 group_count,
2728 u32 *group_ids, u32 group_id)
2730 struct rocker_group_tbl_entry *entry;
2732 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2736 entry->group_id = group_id;
2737 entry->group_count = group_count;
2739 entry->group_ids = kcalloc(group_count, sizeof(u32),
2740 rocker_op_flags_gfp(flags));
2741 if (!entry->group_ids) {
2745 memcpy(entry->group_ids, group_ids, group_count * sizeof(u32));
2747 return rocker_group_tbl_do(rocker_port, flags, entry);
2750 static int rocker_group_l2_flood(struct rocker_port *rocker_port,
2751 int flags, __be16 vlan_id,
2752 u8 group_count, u32 *group_ids,
2755 return rocker_group_l2_fan_out(rocker_port, flags,
2756 group_count, group_ids,
2760 static int rocker_group_l3_unicast(struct rocker_port *rocker_port,
2761 int flags, u32 index, u8 *src_mac,
2762 u8 *dst_mac, __be16 vlan_id,
2763 bool ttl_check, u32 pport)
2765 struct rocker_group_tbl_entry *entry;
2767 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2771 entry->group_id = ROCKER_GROUP_L3_UNICAST(index);
2773 ether_addr_copy(entry->l3_unicast.eth_src, src_mac);
2775 ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac);
2776 entry->l3_unicast.vlan_id = vlan_id;
2777 entry->l3_unicast.ttl_check = ttl_check;
2778 entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport);
2780 return rocker_group_tbl_do(rocker_port, flags, entry);
2783 static struct rocker_neigh_tbl_entry *
2784 rocker_neigh_tbl_find(struct rocker *rocker, __be32 ip_addr)
2786 struct rocker_neigh_tbl_entry *found;
2788 hash_for_each_possible(rocker->neigh_tbl, found,
2789 entry, be32_to_cpu(ip_addr))
2790 if (found->ip_addr == ip_addr)
2796 static void _rocker_neigh_add(struct rocker *rocker,
2797 struct rocker_neigh_tbl_entry *entry)
2799 entry->index = rocker->neigh_tbl_next_index++;
2801 hash_add(rocker->neigh_tbl, &entry->entry,
2802 be32_to_cpu(entry->ip_addr));
2805 static void _rocker_neigh_del(struct rocker *rocker,
2806 struct rocker_neigh_tbl_entry *entry)
2808 if (--entry->ref_count == 0) {
2809 hash_del(&entry->entry);
2814 static void _rocker_neigh_update(struct rocker *rocker,
2815 struct rocker_neigh_tbl_entry *entry,
2816 u8 *eth_dst, bool ttl_check)
2819 ether_addr_copy(entry->eth_dst, eth_dst);
2820 entry->ttl_check = ttl_check;
2826 static int rocker_port_ipv4_neigh(struct rocker_port *rocker_port,
2827 int flags, __be32 ip_addr, u8 *eth_dst)
2829 struct rocker *rocker = rocker_port->rocker;
2830 struct rocker_neigh_tbl_entry *entry;
2831 struct rocker_neigh_tbl_entry *found;
2832 unsigned long lock_flags;
2833 __be16 eth_type = htons(ETH_P_IP);
2834 enum rocker_of_dpa_table_id goto_tbl =
2835 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2838 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
2843 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2847 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
2849 found = rocker_neigh_tbl_find(rocker, ip_addr);
2851 updating = found && adding;
2852 removing = found && !adding;
2853 adding = !found && adding;
2856 entry->ip_addr = ip_addr;
2857 entry->dev = rocker_port->dev;
2858 ether_addr_copy(entry->eth_dst, eth_dst);
2859 entry->ttl_check = true;
2860 _rocker_neigh_add(rocker, entry);
2861 } else if (removing) {
2862 memcpy(entry, found, sizeof(*entry));
2863 _rocker_neigh_del(rocker, found);
2864 } else if (updating) {
2865 _rocker_neigh_update(rocker, found, eth_dst, true);
2866 memcpy(entry, found, sizeof(*entry));
2871 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
2876 /* For each active neighbor, we have an L3 unicast group and
2877 * a /32 route to the neighbor, which uses the L3 unicast
2878 * group. The L3 unicast group can also be referred to by
2879 * other routes' nexthops.
2882 err = rocker_group_l3_unicast(rocker_port, flags,
2884 rocker_port->dev->dev_addr,
2886 rocker_port->internal_vlan_id,
2888 rocker_port->pport);
2890 netdev_err(rocker_port->dev,
2891 "Error (%d) L3 unicast group index %d\n",
2896 if (adding || removing) {
2897 group_id = ROCKER_GROUP_L3_UNICAST(entry->index);
2898 err = rocker_flow_tbl_ucast4_routing(rocker_port,
2905 netdev_err(rocker_port->dev,
2906 "Error (%d) /32 unicast route %pI4 group 0x%08x\n",
2907 err, &entry->ip_addr, group_id);
2917 static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port,
2920 struct net_device *dev = rocker_port->dev;
2921 struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr);
2925 n = neigh_create(&arp_tbl, &ip_addr, dev);
2929 /* If the neigh is already resolved, then go ahead and
2930 * install the entry, otherwise start the ARP process to
2931 * resolve the neigh.
2934 if (n->nud_state & NUD_VALID)
2935 err = rocker_port_ipv4_neigh(rocker_port, 0, ip_addr, n->ha);
2937 neigh_event_send(n, NULL);
2942 static int rocker_port_ipv4_nh(struct rocker_port *rocker_port, int flags,
2943 __be32 ip_addr, u32 *index)
2945 struct rocker *rocker = rocker_port->rocker;
2946 struct rocker_neigh_tbl_entry *entry;
2947 struct rocker_neigh_tbl_entry *found;
2948 unsigned long lock_flags;
2949 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
2952 bool resolved = true;
2955 entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
2959 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
2961 found = rocker_neigh_tbl_find(rocker, ip_addr);
2963 *index = found->index;
2965 updating = found && adding;
2966 removing = found && !adding;
2967 adding = !found && adding;
2970 entry->ip_addr = ip_addr;
2971 entry->dev = rocker_port->dev;
2972 _rocker_neigh_add(rocker, entry);
2973 *index = entry->index;
2975 } else if (removing) {
2976 _rocker_neigh_del(rocker, found);
2977 } else if (updating) {
2978 _rocker_neigh_update(rocker, found, NULL, false);
2979 resolved = !is_zero_ether_addr(found->eth_dst);
2984 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
2992 /* Resolved means neigh ip_addr is resolved to neigh mac. */
2995 err = rocker_port_ipv4_resolve(rocker_port, ip_addr);
3000 static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port,
3001 int flags, __be16 vlan_id)
3003 struct rocker_port *p;
3004 struct rocker *rocker = rocker_port->rocker;
3005 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
3011 group_ids = kcalloc(rocker->port_count, sizeof(u32),
3012 rocker_op_flags_gfp(flags));
3016 /* Adjust the flood group for this VLAN. The flood group
3017 * references an L2 interface group for each port in this
3021 for (i = 0; i < rocker->port_count; i++) {
3022 p = rocker->ports[i];
3023 if (!rocker_port_is_bridged(p))
3025 if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) {
3026 group_ids[group_count++] =
3027 ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport);
3031 /* If there are no bridged ports in this VLAN, we're done */
3032 if (group_count == 0)
3033 goto no_ports_in_vlan;
3035 err = rocker_group_l2_flood(rocker_port, flags, vlan_id,
3036 group_count, group_ids,
3039 netdev_err(rocker_port->dev,
3040 "Error (%d) port VLAN l2 flood group\n", err);
3047 static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port,
3048 int flags, __be16 vlan_id,
3051 struct rocker *rocker = rocker_port->rocker;
3052 struct rocker_port *p;
3053 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3059 /* An L2 interface group for this port in this VLAN, but
3060 * only when port STP state is LEARNING|FORWARDING.
3063 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3064 rocker_port->stp_state == BR_STATE_FORWARDING) {
3065 out_pport = rocker_port->pport;
3066 err = rocker_group_l2_interface(rocker_port, flags,
3070 netdev_err(rocker_port->dev,
3071 "Error (%d) port VLAN l2 group for pport %d\n",
3077 /* An L2 interface group for this VLAN to CPU port.
3078 * Add when first port joins this VLAN and destroy when
3079 * last port leaves this VLAN.
3082 for (i = 0; i < rocker->port_count; i++) {
3083 p = rocker->ports[i];
3084 if (test_bit(ntohs(vlan_id), p->vlan_bitmap))
3088 if ((!adding || ref != 1) && (adding || ref != 0))
3092 err = rocker_group_l2_interface(rocker_port, flags,
3096 netdev_err(rocker_port->dev,
3097 "Error (%d) port VLAN l2 group for CPU port\n", err);
3104 static struct rocker_ctrl {
3106 const u8 *eth_dst_mask;
3112 } rocker_ctrls[] = {
3113 [ROCKER_CTRL_LINK_LOCAL_MCAST] = {
3114 /* pass link local multicast pkts up to CPU for filtering */
3116 .eth_dst_mask = ll_mask,
3119 [ROCKER_CTRL_LOCAL_ARP] = {
3120 /* pass local ARP pkts up to CPU */
3121 .eth_dst = zero_mac,
3122 .eth_dst_mask = zero_mac,
3123 .eth_type = htons(ETH_P_ARP),
3126 [ROCKER_CTRL_IPV4_MCAST] = {
3127 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
3128 .eth_dst = ipv4_mcast,
3129 .eth_dst_mask = ipv4_mask,
3130 .eth_type = htons(ETH_P_IP),
3132 .copy_to_cpu = true,
3134 [ROCKER_CTRL_IPV6_MCAST] = {
3135 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
3136 .eth_dst = ipv6_mcast,
3137 .eth_dst_mask = ipv6_mask,
3138 .eth_type = htons(ETH_P_IPV6),
3140 .copy_to_cpu = true,
3142 [ROCKER_CTRL_DFLT_BRIDGING] = {
3143 /* flood any pkts on vlan */
3145 .copy_to_cpu = true,
3149 static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port,
3150 int flags, struct rocker_ctrl *ctrl,
3153 u32 in_pport = rocker_port->pport;
3154 u32 in_pport_mask = 0xffffffff;
3157 u8 *eth_src_mask = NULL;
3158 __be16 vlan_id_mask = htons(0xffff);
3160 u8 ip_proto_mask = 0;
3163 u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
3166 err = rocker_flow_tbl_acl(rocker_port, flags,
3167 in_pport, in_pport_mask,
3168 eth_src, eth_src_mask,
3169 ctrl->eth_dst, ctrl->eth_dst_mask,
3171 vlan_id, vlan_id_mask,
3172 ip_proto, ip_proto_mask,
3173 ip_tos, ip_tos_mask,
3177 netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err);
3182 static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port,
3183 int flags, struct rocker_ctrl *ctrl,
3186 enum rocker_of_dpa_table_id goto_tbl =
3187 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3188 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
3192 if (!rocker_port_is_bridged(rocker_port))
3195 err = rocker_flow_tbl_bridge(rocker_port, flags,
3196 ctrl->eth_dst, ctrl->eth_dst_mask,
3198 goto_tbl, group_id, ctrl->copy_to_cpu);
3201 netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err);
3206 static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port,
3207 int flags, struct rocker_ctrl *ctrl,
3210 u32 in_pport_mask = 0xffffffff;
3211 __be16 vlan_id_mask = htons(0xffff);
3214 if (ntohs(vlan_id) == 0)
3215 vlan_id = rocker_port->internal_vlan_id;
3217 err = rocker_flow_tbl_term_mac(rocker_port,
3218 rocker_port->pport, in_pport_mask,
3219 ctrl->eth_type, ctrl->eth_dst,
3220 ctrl->eth_dst_mask, vlan_id,
3221 vlan_id_mask, ctrl->copy_to_cpu,
3225 netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err);
3230 static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port, int flags,
3231 struct rocker_ctrl *ctrl, __be16 vlan_id)
3234 return rocker_port_ctrl_vlan_acl(rocker_port, flags,
3237 return rocker_port_ctrl_vlan_bridge(rocker_port, flags,
3241 return rocker_port_ctrl_vlan_term(rocker_port, flags,
3247 static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port,
3248 int flags, __be16 vlan_id)
3253 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3254 if (rocker_port->ctrls[i]) {
3255 err = rocker_port_ctrl_vlan(rocker_port, flags,
3256 &rocker_ctrls[i], vlan_id);
3265 static int rocker_port_ctrl(struct rocker_port *rocker_port, int flags,
3266 struct rocker_ctrl *ctrl)
3271 for (vid = 1; vid < VLAN_N_VID; vid++) {
3272 if (!test_bit(vid, rocker_port->vlan_bitmap))
3274 err = rocker_port_ctrl_vlan(rocker_port, flags,
3283 static int rocker_port_vlan(struct rocker_port *rocker_port, int flags,
3286 enum rocker_of_dpa_table_id goto_tbl =
3287 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
3288 u32 in_pport = rocker_port->pport;
3289 __be16 vlan_id = htons(vid);
3290 __be16 vlan_id_mask = htons(0xffff);
3291 __be16 internal_vlan_id;
3293 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3296 internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged);
3298 if (adding && test_and_set_bit(ntohs(internal_vlan_id),
3299 rocker_port->vlan_bitmap))
3300 return 0; /* already added */
3301 else if (!adding && !test_and_clear_bit(ntohs(internal_vlan_id),
3302 rocker_port->vlan_bitmap))
3303 return 0; /* already removed */
3306 err = rocker_port_ctrl_vlan_add(rocker_port, flags,
3309 netdev_err(rocker_port->dev,
3310 "Error (%d) port ctrl vlan add\n", err);
3315 err = rocker_port_vlan_l2_groups(rocker_port, flags,
3316 internal_vlan_id, untagged);
3318 netdev_err(rocker_port->dev,
3319 "Error (%d) port VLAN l2 groups\n", err);
3323 err = rocker_port_vlan_flood_group(rocker_port, flags,
3326 netdev_err(rocker_port->dev,
3327 "Error (%d) port VLAN l2 flood group\n", err);
3331 err = rocker_flow_tbl_vlan(rocker_port, flags,
3332 in_pport, vlan_id, vlan_id_mask,
3333 goto_tbl, untagged, internal_vlan_id);
3335 netdev_err(rocker_port->dev,
3336 "Error (%d) port VLAN table\n", err);
3341 static int rocker_port_ig_tbl(struct rocker_port *rocker_port, int flags)
3343 enum rocker_of_dpa_table_id goto_tbl;
3348 /* Normal Ethernet Frames. Matches pkts from any local physical
3349 * ports. Goto VLAN tbl.
3353 in_pport_mask = 0xffff0000;
3354 goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
3356 err = rocker_flow_tbl_ig_port(rocker_port, flags,
3357 in_pport, in_pport_mask,
3360 netdev_err(rocker_port->dev,
3361 "Error (%d) ingress port table entry\n", err);
3366 struct rocker_fdb_learn_work {
3367 struct work_struct work;
3368 struct net_device *dev;
3374 static void rocker_port_fdb_learn_work(struct work_struct *work)
3376 struct rocker_fdb_learn_work *lw =
3377 container_of(work, struct rocker_fdb_learn_work, work);
3378 bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE);
3379 bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED);
3380 struct netdev_switch_notifier_fdb_info info;
3382 info.addr = lw->addr;
3385 if (learned && removing)
3386 call_netdev_switch_notifiers(NETDEV_SWITCH_FDB_DEL,
3387 lw->dev, &info.info);
3388 else if (learned && !removing)
3389 call_netdev_switch_notifiers(NETDEV_SWITCH_FDB_ADD,
3390 lw->dev, &info.info);
3395 static int rocker_port_fdb_learn(struct rocker_port *rocker_port,
3396 int flags, const u8 *addr, __be16 vlan_id)
3398 struct rocker_fdb_learn_work *lw;
3399 enum rocker_of_dpa_table_id goto_tbl =
3400 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3401 u32 out_pport = rocker_port->pport;
3403 u32 group_id = ROCKER_GROUP_NONE;
3404 bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC);
3405 bool copy_to_cpu = false;
3408 if (rocker_port_is_bridged(rocker_port))
3409 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
3411 if (!(flags & ROCKER_OP_FLAG_REFRESH)) {
3412 err = rocker_flow_tbl_bridge(rocker_port, flags, addr, NULL,
3413 vlan_id, tunnel_id, goto_tbl,
3414 group_id, copy_to_cpu);
3422 if (!rocker_port_is_bridged(rocker_port))
3425 lw = kmalloc(sizeof(*lw), rocker_op_flags_gfp(flags));
3429 INIT_WORK(&lw->work, rocker_port_fdb_learn_work);
3431 lw->dev = rocker_port->dev;
3433 ether_addr_copy(lw->addr, addr);
3434 lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id);
3436 schedule_work(&lw->work);
3441 static struct rocker_fdb_tbl_entry *
3442 rocker_fdb_tbl_find(struct rocker *rocker, struct rocker_fdb_tbl_entry *match)
3444 struct rocker_fdb_tbl_entry *found;
3446 hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32)
3447 if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
3453 static int rocker_port_fdb(struct rocker_port *rocker_port,
3454 const unsigned char *addr,
3455 __be16 vlan_id, int flags)
3457 struct rocker *rocker = rocker_port->rocker;
3458 struct rocker_fdb_tbl_entry *fdb;
3459 struct rocker_fdb_tbl_entry *found;
3460 bool removing = (flags & ROCKER_OP_FLAG_REMOVE);
3461 unsigned long lock_flags;
3463 fdb = kzalloc(sizeof(*fdb), rocker_op_flags_gfp(flags));
3467 fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED);
3468 fdb->key.pport = rocker_port->pport;
3469 ether_addr_copy(fdb->key.addr, addr);
3470 fdb->key.vlan_id = vlan_id;
3471 fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key));
3473 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3475 found = rocker_fdb_tbl_find(rocker, fdb);
3477 if (removing && found) {
3479 hash_del(&found->entry);
3480 } else if (!removing && !found) {
3481 hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32);
3484 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3486 /* Check if adding and already exists, or removing and can't find */
3487 if (!found != !removing) {
3489 if (!found && removing)
3491 /* Refreshing existing to update aging timers */
3492 flags |= ROCKER_OP_FLAG_REFRESH;
3495 return rocker_port_fdb_learn(rocker_port, flags, addr, vlan_id);
3498 static int rocker_port_fdb_flush(struct rocker_port *rocker_port)
3500 struct rocker *rocker = rocker_port->rocker;
3501 struct rocker_fdb_tbl_entry *found;
3502 unsigned long lock_flags;
3503 int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_REMOVE;
3504 struct hlist_node *tmp;
3508 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3509 rocker_port->stp_state == BR_STATE_FORWARDING)
3512 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3514 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
3515 if (found->key.pport != rocker_port->pport)
3517 if (!found->learned)
3519 err = rocker_port_fdb_learn(rocker_port, flags,
3521 found->key.vlan_id);
3524 hash_del(&found->entry);
3528 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3533 static int rocker_port_router_mac(struct rocker_port *rocker_port,
3534 int flags, __be16 vlan_id)
3536 u32 in_pport_mask = 0xffffffff;
3538 const u8 *dst_mac_mask = ff_mac;
3539 __be16 vlan_id_mask = htons(0xffff);
3540 bool copy_to_cpu = false;
3543 if (ntohs(vlan_id) == 0)
3544 vlan_id = rocker_port->internal_vlan_id;
3546 eth_type = htons(ETH_P_IP);
3547 err = rocker_flow_tbl_term_mac(rocker_port,
3548 rocker_port->pport, in_pport_mask,
3549 eth_type, rocker_port->dev->dev_addr,
3550 dst_mac_mask, vlan_id, vlan_id_mask,
3551 copy_to_cpu, flags);
3555 eth_type = htons(ETH_P_IPV6);
3556 err = rocker_flow_tbl_term_mac(rocker_port,
3557 rocker_port->pport, in_pport_mask,
3558 eth_type, rocker_port->dev->dev_addr,
3559 dst_mac_mask, vlan_id, vlan_id_mask,
3560 copy_to_cpu, flags);
3565 static int rocker_port_fwding(struct rocker_port *rocker_port)
3571 int flags = ROCKER_OP_FLAG_NOWAIT;
3574 /* Port will be forwarding-enabled if its STP state is LEARNING
3575 * or FORWARDING. Traffic from CPU can still egress, regardless of
3576 * port STP state. Use L2 interface group on port VLANs as a way
3577 * to toggle port forwarding: if forwarding is disabled, L2
3578 * interface group will not exist.
3581 if (rocker_port->stp_state != BR_STATE_LEARNING &&
3582 rocker_port->stp_state != BR_STATE_FORWARDING)
3583 flags |= ROCKER_OP_FLAG_REMOVE;
3585 out_pport = rocker_port->pport;
3586 for (vid = 1; vid < VLAN_N_VID; vid++) {
3587 if (!test_bit(vid, rocker_port->vlan_bitmap))
3589 vlan_id = htons(vid);
3590 pop_vlan = rocker_vlan_id_is_internal(vlan_id);
3591 err = rocker_group_l2_interface(rocker_port, flags,
3595 netdev_err(rocker_port->dev,
3596 "Error (%d) port VLAN l2 group for pport %d\n",
3605 static int rocker_port_stp_update(struct rocker_port *rocker_port, u8 state)
3607 bool want[ROCKER_CTRL_MAX] = { 0, };
3612 if (rocker_port->stp_state == state)
3615 rocker_port->stp_state = state;
3618 case BR_STATE_DISABLED:
3619 /* port is completely disabled */
3621 case BR_STATE_LISTENING:
3622 case BR_STATE_BLOCKING:
3623 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3625 case BR_STATE_LEARNING:
3626 case BR_STATE_FORWARDING:
3627 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3628 want[ROCKER_CTRL_IPV4_MCAST] = true;
3629 want[ROCKER_CTRL_IPV6_MCAST] = true;
3630 if (rocker_port_is_bridged(rocker_port))
3631 want[ROCKER_CTRL_DFLT_BRIDGING] = true;
3633 want[ROCKER_CTRL_LOCAL_ARP] = true;
3637 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3638 if (want[i] != rocker_port->ctrls[i]) {
3639 flags = ROCKER_OP_FLAG_NOWAIT |
3640 (want[i] ? 0 : ROCKER_OP_FLAG_REMOVE);
3641 err = rocker_port_ctrl(rocker_port, flags,
3645 rocker_port->ctrls[i] = want[i];
3649 err = rocker_port_fdb_flush(rocker_port);
3653 return rocker_port_fwding(rocker_port);
3656 static int rocker_port_fwd_enable(struct rocker_port *rocker_port)
3658 if (rocker_port_is_bridged(rocker_port))
3659 /* bridge STP will enable port */
3662 /* port is not bridged, so simulate going to FORWARDING state */
3663 return rocker_port_stp_update(rocker_port, BR_STATE_FORWARDING);
3666 static int rocker_port_fwd_disable(struct rocker_port *rocker_port)
3668 if (rocker_port_is_bridged(rocker_port))
3669 /* bridge STP will disable port */
3672 /* port is not bridged, so simulate going to DISABLED state */
3673 return rocker_port_stp_update(rocker_port, BR_STATE_DISABLED);
3676 static struct rocker_internal_vlan_tbl_entry *
3677 rocker_internal_vlan_tbl_find(struct rocker *rocker, int ifindex)
3679 struct rocker_internal_vlan_tbl_entry *found;
3681 hash_for_each_possible(rocker->internal_vlan_tbl, found,
3683 if (found->ifindex == ifindex)
3690 static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port,
3693 struct rocker *rocker = rocker_port->rocker;
3694 struct rocker_internal_vlan_tbl_entry *entry;
3695 struct rocker_internal_vlan_tbl_entry *found;
3696 unsigned long lock_flags;
3699 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
3703 entry->ifindex = ifindex;
3705 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3707 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3714 hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex);
3716 for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) {
3717 if (test_and_set_bit(i, rocker->internal_vlan_bitmap))
3719 found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i);
3723 netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n");
3727 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3729 return found->vlan_id;
3732 static void rocker_port_internal_vlan_id_put(struct rocker_port *rocker_port,
3735 struct rocker *rocker = rocker_port->rocker;
3736 struct rocker_internal_vlan_tbl_entry *found;
3737 unsigned long lock_flags;
3740 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3742 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3744 netdev_err(rocker_port->dev,
3745 "ifindex (%d) not found in internal VLAN tbl\n",
3750 if (--found->ref_count <= 0) {
3751 bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE;
3752 clear_bit(bit, rocker->internal_vlan_bitmap);
3753 hash_del(&found->entry);
3758 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3761 static int rocker_port_fib_ipv4(struct rocker_port *rocker_port, __be32 dst,
3762 int dst_len, struct fib_info *fi, u32 tb_id,
3766 __be16 eth_type = htons(ETH_P_IP);
3767 __be32 dst_mask = inet_make_mask(dst_len);
3768 __be16 internal_vlan_id = rocker_port->internal_vlan_id;
3769 u32 priority = fi->fib_priority;
3770 enum rocker_of_dpa_table_id goto_tbl =
3771 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3778 /* XXX support ECMP */
3781 nh_on_port = (fi->fib_dev == rocker_port->dev);
3782 has_gw = !!nh->nh_gw;
3784 if (has_gw && nh_on_port) {
3785 err = rocker_port_ipv4_nh(rocker_port, flags,
3790 group_id = ROCKER_GROUP_L3_UNICAST(index);
3792 /* Send to CPU for processing */
3793 group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0);
3796 err = rocker_flow_tbl_ucast4_routing(rocker_port, eth_type, dst,
3797 dst_mask, priority, goto_tbl,
3800 netdev_err(rocker_port->dev, "Error (%d) IPv4 route %pI4\n",
3810 static int rocker_port_open(struct net_device *dev)
3812 struct rocker_port *rocker_port = netdev_priv(dev);
3815 err = rocker_port_dma_rings_init(rocker_port);
3819 err = request_irq(rocker_msix_tx_vector(rocker_port),
3820 rocker_tx_irq_handler, 0,
3821 rocker_driver_name, rocker_port);
3823 netdev_err(rocker_port->dev, "cannot assign tx irq\n");
3824 goto err_request_tx_irq;
3827 err = request_irq(rocker_msix_rx_vector(rocker_port),
3828 rocker_rx_irq_handler, 0,
3829 rocker_driver_name, rocker_port);
3831 netdev_err(rocker_port->dev, "cannot assign rx irq\n");
3832 goto err_request_rx_irq;
3835 err = rocker_port_fwd_enable(rocker_port);
3837 goto err_fwd_enable;
3839 napi_enable(&rocker_port->napi_tx);
3840 napi_enable(&rocker_port->napi_rx);
3841 rocker_port_set_enable(rocker_port, true);
3842 netif_start_queue(dev);
3846 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
3848 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
3850 rocker_port_dma_rings_fini(rocker_port);
3854 static int rocker_port_stop(struct net_device *dev)
3856 struct rocker_port *rocker_port = netdev_priv(dev);
3858 netif_stop_queue(dev);
3859 rocker_port_set_enable(rocker_port, false);
3860 napi_disable(&rocker_port->napi_rx);
3861 napi_disable(&rocker_port->napi_tx);
3862 rocker_port_fwd_disable(rocker_port);
3863 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
3864 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
3865 rocker_port_dma_rings_fini(rocker_port);
3870 static void rocker_tx_desc_frags_unmap(struct rocker_port *rocker_port,
3871 struct rocker_desc_info *desc_info)
3873 struct rocker *rocker = rocker_port->rocker;
3874 struct pci_dev *pdev = rocker->pdev;
3875 struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1];
3876 struct rocker_tlv *attr;
3879 rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info);
3880 if (!attrs[ROCKER_TLV_TX_FRAGS])
3882 rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) {
3883 struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1];
3884 dma_addr_t dma_handle;
3887 if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG)
3889 rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX,
3891 if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] ||
3892 !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN])
3894 dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]);
3895 len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]);
3896 pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE);
3900 static int rocker_tx_desc_frag_map_put(struct rocker_port *rocker_port,
3901 struct rocker_desc_info *desc_info,
3902 char *buf, size_t buf_len)
3904 struct rocker *rocker = rocker_port->rocker;
3905 struct pci_dev *pdev = rocker->pdev;
3906 dma_addr_t dma_handle;
3907 struct rocker_tlv *frag;
3909 dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE);
3910 if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) {
3911 if (net_ratelimit())
3912 netdev_err(rocker_port->dev, "failed to dma map tx frag\n");
3915 frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG);
3918 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR,
3921 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN,
3924 rocker_tlv_nest_end(desc_info, frag);
3928 rocker_tlv_nest_cancel(desc_info, frag);
3930 pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE);
3934 static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev)
3936 struct rocker_port *rocker_port = netdev_priv(dev);
3937 struct rocker *rocker = rocker_port->rocker;
3938 struct rocker_desc_info *desc_info;
3939 struct rocker_tlv *frags;
3943 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
3944 if (unlikely(!desc_info)) {
3945 if (net_ratelimit())
3946 netdev_err(dev, "tx ring full when queue awake\n");
3947 return NETDEV_TX_BUSY;
3950 rocker_desc_cookie_ptr_set(desc_info, skb);
3952 frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS);
3955 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
3956 skb->data, skb_headlen(skb));
3959 if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX)
3962 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
3963 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
3965 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
3966 skb_frag_address(frag),
3967 skb_frag_size(frag));
3971 rocker_tlv_nest_end(desc_info, frags);
3973 rocker_desc_gen_clear(desc_info);
3974 rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info);
3976 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
3978 netif_stop_queue(dev);
3980 return NETDEV_TX_OK;
3983 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
3985 rocker_tlv_nest_cancel(desc_info, frags);
3988 dev->stats.tx_dropped++;
3990 return NETDEV_TX_OK;
3993 static int rocker_port_set_mac_address(struct net_device *dev, void *p)
3995 struct sockaddr *addr = p;
3996 struct rocker_port *rocker_port = netdev_priv(dev);
3999 if (!is_valid_ether_addr(addr->sa_data))
4000 return -EADDRNOTAVAIL;
4002 err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data);
4005 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
4009 static int rocker_port_vlan_rx_add_vid(struct net_device *dev,
4010 __be16 proto, u16 vid)
4012 struct rocker_port *rocker_port = netdev_priv(dev);
4015 err = rocker_port_vlan(rocker_port, 0, vid);
4019 return rocker_port_router_mac(rocker_port, 0, htons(vid));
4022 static int rocker_port_vlan_rx_kill_vid(struct net_device *dev,
4023 __be16 proto, u16 vid)
4025 struct rocker_port *rocker_port = netdev_priv(dev);
4028 err = rocker_port_router_mac(rocker_port, ROCKER_OP_FLAG_REMOVE,
4033 return rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, vid);
4036 static int rocker_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
4037 struct net_device *dev,
4038 const unsigned char *addr, u16 vid,
4041 struct rocker_port *rocker_port = netdev_priv(dev);
4042 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
4045 if (!rocker_port_is_bridged(rocker_port))
4048 return rocker_port_fdb(rocker_port, addr, vlan_id, flags);
4051 static int rocker_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
4052 struct net_device *dev,
4053 const unsigned char *addr, u16 vid)
4055 struct rocker_port *rocker_port = netdev_priv(dev);
4056 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
4057 int flags = ROCKER_OP_FLAG_REMOVE;
4059 if (!rocker_port_is_bridged(rocker_port))
4062 return rocker_port_fdb(rocker_port, addr, vlan_id, flags);
4065 static int rocker_fdb_fill_info(struct sk_buff *skb,
4066 struct rocker_port *rocker_port,
4067 const unsigned char *addr, u16 vid,
4068 u32 portid, u32 seq, int type,
4071 struct nlmsghdr *nlh;
4074 nlh = nlmsg_put(skb, portid, seq, type, sizeof(*ndm), flags);
4078 ndm = nlmsg_data(nlh);
4079 ndm->ndm_family = AF_BRIDGE;
4082 ndm->ndm_flags = NTF_SELF;
4084 ndm->ndm_ifindex = rocker_port->dev->ifindex;
4085 ndm->ndm_state = NUD_REACHABLE;
4087 if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr))
4088 goto nla_put_failure;
4090 if (vid && nla_put_u16(skb, NDA_VLAN, vid))
4091 goto nla_put_failure;
4093 nlmsg_end(skb, nlh);
4097 nlmsg_cancel(skb, nlh);
4101 static int rocker_port_fdb_dump(struct sk_buff *skb,
4102 struct netlink_callback *cb,
4103 struct net_device *dev,
4104 struct net_device *filter_dev,
4107 struct rocker_port *rocker_port = netdev_priv(dev);
4108 struct rocker *rocker = rocker_port->rocker;
4109 struct rocker_fdb_tbl_entry *found;
4110 struct hlist_node *tmp;
4112 unsigned long lock_flags;
4113 const unsigned char *addr;
4117 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
4118 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
4119 if (found->key.pport != rocker_port->pport)
4121 if (idx < cb->args[0])
4123 addr = found->key.addr;
4124 vid = rocker_port_vlan_to_vid(rocker_port, found->key.vlan_id);
4125 err = rocker_fdb_fill_info(skb, rocker_port, addr, vid,
4126 NETLINK_CB(cb->skb).portid,
4128 RTM_NEWNEIGH, NLM_F_MULTI);
4134 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
4138 static int rocker_port_bridge_setlink(struct net_device *dev,
4139 struct nlmsghdr *nlh, u16 flags)
4141 struct rocker_port *rocker_port = netdev_priv(dev);
4142 struct nlattr *protinfo;
4143 struct nlattr *attr;
4146 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg),
4149 attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING);
4151 if (nla_len(attr) < sizeof(u8))
4154 if (nla_get_u8(attr))
4155 rocker_port->brport_flags |= BR_LEARNING;
4157 rocker_port->brport_flags &= ~BR_LEARNING;
4158 err = rocker_port_set_learning(rocker_port);
4162 attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING_SYNC);
4164 if (nla_len(attr) < sizeof(u8))
4167 if (nla_get_u8(attr))
4168 rocker_port->brport_flags |= BR_LEARNING_SYNC;
4170 rocker_port->brport_flags &= ~BR_LEARNING_SYNC;
4177 static int rocker_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
4178 struct net_device *dev,
4179 u32 filter_mask, int nlflags)
4181 struct rocker_port *rocker_port = netdev_priv(dev);
4182 u16 mode = BRIDGE_MODE_UNDEF;
4183 u32 mask = BR_LEARNING | BR_LEARNING_SYNC;
4185 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode,
4186 rocker_port->brport_flags, mask,
4190 static int rocker_port_get_phys_port_name(struct net_device *dev,
4191 char *buf, size_t len)
4193 struct rocker_port *rocker_port = netdev_priv(dev);
4194 struct port_name name = { .buf = buf, .len = len };
4197 err = rocker_cmd_exec(rocker_port->rocker, rocker_port,
4198 rocker_cmd_get_port_settings_prep, NULL,
4199 rocker_cmd_get_port_settings_phys_name_proc,
4202 return err ? -EOPNOTSUPP : 0;
4205 static const struct net_device_ops rocker_port_netdev_ops = {
4206 .ndo_open = rocker_port_open,
4207 .ndo_stop = rocker_port_stop,
4208 .ndo_start_xmit = rocker_port_xmit,
4209 .ndo_set_mac_address = rocker_port_set_mac_address,
4210 .ndo_vlan_rx_add_vid = rocker_port_vlan_rx_add_vid,
4211 .ndo_vlan_rx_kill_vid = rocker_port_vlan_rx_kill_vid,
4212 .ndo_fdb_add = rocker_port_fdb_add,
4213 .ndo_fdb_del = rocker_port_fdb_del,
4214 .ndo_fdb_dump = rocker_port_fdb_dump,
4215 .ndo_bridge_setlink = rocker_port_bridge_setlink,
4216 .ndo_bridge_getlink = rocker_port_bridge_getlink,
4217 .ndo_get_phys_port_name = rocker_port_get_phys_port_name,
4220 /********************
4222 ********************/
4224 static int rocker_port_swdev_parent_id_get(struct net_device *dev,
4225 struct netdev_phys_item_id *psid)
4227 struct rocker_port *rocker_port = netdev_priv(dev);
4228 struct rocker *rocker = rocker_port->rocker;
4230 psid->id_len = sizeof(rocker->hw.id);
4231 memcpy(&psid->id, &rocker->hw.id, psid->id_len);
4235 static int rocker_port_swdev_port_stp_update(struct net_device *dev, u8 state)
4237 struct rocker_port *rocker_port = netdev_priv(dev);
4239 return rocker_port_stp_update(rocker_port, state);
4242 static int rocker_port_swdev_fib_ipv4_add(struct net_device *dev,
4243 __be32 dst, int dst_len,
4244 struct fib_info *fi,
4246 u32 nlflags, u32 tb_id)
4248 struct rocker_port *rocker_port = netdev_priv(dev);
4251 return rocker_port_fib_ipv4(rocker_port, dst, dst_len,
4255 static int rocker_port_swdev_fib_ipv4_del(struct net_device *dev,
4256 __be32 dst, int dst_len,
4257 struct fib_info *fi,
4258 u8 tos, u8 type, u32 tb_id)
4260 struct rocker_port *rocker_port = netdev_priv(dev);
4261 int flags = ROCKER_OP_FLAG_REMOVE;
4263 return rocker_port_fib_ipv4(rocker_port, dst, dst_len,
4267 static const struct swdev_ops rocker_port_swdev_ops = {
4268 .swdev_parent_id_get = rocker_port_swdev_parent_id_get,
4269 .swdev_port_stp_update = rocker_port_swdev_port_stp_update,
4270 .swdev_fib_ipv4_add = rocker_port_swdev_fib_ipv4_add,
4271 .swdev_fib_ipv4_del = rocker_port_swdev_fib_ipv4_del,
4274 /********************
4276 ********************/
4278 static int rocker_port_get_settings(struct net_device *dev,
4279 struct ethtool_cmd *ecmd)
4281 struct rocker_port *rocker_port = netdev_priv(dev);
4283 return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd);
4286 static int rocker_port_set_settings(struct net_device *dev,
4287 struct ethtool_cmd *ecmd)
4289 struct rocker_port *rocker_port = netdev_priv(dev);
4291 return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd);
4294 static void rocker_port_get_drvinfo(struct net_device *dev,
4295 struct ethtool_drvinfo *drvinfo)
4297 strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver));
4298 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
4301 static struct rocker_port_stats {
4302 char str[ETH_GSTRING_LEN];
4304 } rocker_port_stats[] = {
4305 { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, },
4306 { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, },
4307 { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, },
4308 { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, },
4310 { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, },
4311 { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, },
4312 { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, },
4313 { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, },
4316 #define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats)
4318 static void rocker_port_get_strings(struct net_device *netdev, u32 stringset,
4324 switch (stringset) {
4326 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4327 memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN);
4328 p += ETH_GSTRING_LEN;
4335 rocker_cmd_get_port_stats_prep(struct rocker *rocker,
4336 struct rocker_port *rocker_port,
4337 struct rocker_desc_info *desc_info,
4340 struct rocker_tlv *cmd_stats;
4342 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
4343 ROCKER_TLV_CMD_TYPE_GET_PORT_STATS))
4346 cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
4350 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT,
4351 rocker_port->pport))
4354 rocker_tlv_nest_end(desc_info, cmd_stats);
4360 rocker_cmd_get_port_stats_ethtool_proc(struct rocker *rocker,
4361 struct rocker_port *rocker_port,
4362 struct rocker_desc_info *desc_info,
4365 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
4366 struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1];
4367 struct rocker_tlv *pattr;
4372 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
4374 if (!attrs[ROCKER_TLV_CMD_INFO])
4377 rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX,
4378 attrs[ROCKER_TLV_CMD_INFO]);
4380 if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT])
4383 pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]);
4384 if (pport != rocker_port->pport)
4387 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4388 pattr = stats_attrs[rocker_port_stats[i].type];
4392 data[i] = rocker_tlv_get_u64(pattr);
4398 static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port,
4401 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
4402 rocker_cmd_get_port_stats_prep, NULL,
4403 rocker_cmd_get_port_stats_ethtool_proc,
4407 static void rocker_port_get_stats(struct net_device *dev,
4408 struct ethtool_stats *stats, u64 *data)
4410 struct rocker_port *rocker_port = netdev_priv(dev);
4412 if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) {
4415 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i)
4422 static int rocker_port_get_sset_count(struct net_device *netdev, int sset)
4426 return ROCKER_PORT_STATS_LEN;
4432 static const struct ethtool_ops rocker_port_ethtool_ops = {
4433 .get_settings = rocker_port_get_settings,
4434 .set_settings = rocker_port_set_settings,
4435 .get_drvinfo = rocker_port_get_drvinfo,
4436 .get_link = ethtool_op_get_link,
4437 .get_strings = rocker_port_get_strings,
4438 .get_ethtool_stats = rocker_port_get_stats,
4439 .get_sset_count = rocker_port_get_sset_count,
4446 static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi)
4448 return container_of(napi, struct rocker_port, napi_tx);
4451 static int rocker_port_poll_tx(struct napi_struct *napi, int budget)
4453 struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi);
4454 struct rocker *rocker = rocker_port->rocker;
4455 struct rocker_desc_info *desc_info;
4459 /* Cleanup tx descriptors */
4460 while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) {
4461 struct sk_buff *skb;
4463 err = rocker_desc_err(desc_info);
4464 if (err && net_ratelimit())
4465 netdev_err(rocker_port->dev, "tx desc received with err %d\n",
4467 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
4469 skb = rocker_desc_cookie_ptr_get(desc_info);
4471 rocker_port->dev->stats.tx_packets++;
4472 rocker_port->dev->stats.tx_bytes += skb->len;
4474 rocker_port->dev->stats.tx_errors++;
4476 dev_kfree_skb_any(skb);
4480 if (credits && netif_queue_stopped(rocker_port->dev))
4481 netif_wake_queue(rocker_port->dev);
4483 napi_complete(napi);
4484 rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits);
4489 static int rocker_port_rx_proc(struct rocker *rocker,
4490 struct rocker_port *rocker_port,
4491 struct rocker_desc_info *desc_info)
4493 struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
4494 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
4500 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
4501 if (!attrs[ROCKER_TLV_RX_FRAG_LEN])
4504 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
4506 rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]);
4507 skb_put(skb, rx_len);
4508 skb->protocol = eth_type_trans(skb, rocker_port->dev);
4510 rocker_port->dev->stats.rx_packets++;
4511 rocker_port->dev->stats.rx_bytes += skb->len;
4513 netif_receive_skb(skb);
4515 return rocker_dma_rx_ring_skb_alloc(rocker, rocker_port, desc_info);
4518 static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi)
4520 return container_of(napi, struct rocker_port, napi_rx);
4523 static int rocker_port_poll_rx(struct napi_struct *napi, int budget)
4525 struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi);
4526 struct rocker *rocker = rocker_port->rocker;
4527 struct rocker_desc_info *desc_info;
4531 /* Process rx descriptors */
4532 while (credits < budget &&
4533 (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) {
4534 err = rocker_desc_err(desc_info);
4536 if (net_ratelimit())
4537 netdev_err(rocker_port->dev, "rx desc received with err %d\n",
4540 err = rocker_port_rx_proc(rocker, rocker_port,
4542 if (err && net_ratelimit())
4543 netdev_err(rocker_port->dev, "rx processing failed with err %d\n",
4547 rocker_port->dev->stats.rx_errors++;
4549 rocker_desc_gen_clear(desc_info);
4550 rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info);
4554 if (credits < budget)
4555 napi_complete(napi);
4557 rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits);
4566 static void rocker_carrier_init(struct rocker_port *rocker_port)
4568 struct rocker *rocker = rocker_port->rocker;
4569 u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS);
4572 link_up = link_status & (1 << rocker_port->pport);
4574 netif_carrier_on(rocker_port->dev);
4576 netif_carrier_off(rocker_port->dev);
4579 static void rocker_remove_ports(struct rocker *rocker)
4581 struct rocker_port *rocker_port;
4584 for (i = 0; i < rocker->port_count; i++) {
4585 rocker_port = rocker->ports[i];
4586 rocker_port_ig_tbl(rocker_port, ROCKER_OP_FLAG_REMOVE);
4587 unregister_netdev(rocker_port->dev);
4589 kfree(rocker->ports);
4592 static void rocker_port_dev_addr_init(struct rocker *rocker,
4593 struct rocker_port *rocker_port)
4595 struct pci_dev *pdev = rocker->pdev;
4598 err = rocker_cmd_get_port_settings_macaddr(rocker_port,
4599 rocker_port->dev->dev_addr);
4601 dev_warn(&pdev->dev, "failed to get mac address, using random\n");
4602 eth_hw_addr_random(rocker_port->dev);
4606 static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
4608 struct pci_dev *pdev = rocker->pdev;
4609 struct rocker_port *rocker_port;
4610 struct net_device *dev;
4613 dev = alloc_etherdev(sizeof(struct rocker_port));
4616 rocker_port = netdev_priv(dev);
4617 rocker_port->dev = dev;
4618 rocker_port->rocker = rocker;
4619 rocker_port->port_number = port_number;
4620 rocker_port->pport = port_number + 1;
4621 rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC;
4623 rocker_port_dev_addr_init(rocker, rocker_port);
4624 dev->netdev_ops = &rocker_port_netdev_ops;
4625 dev->ethtool_ops = &rocker_port_ethtool_ops;
4626 dev->swdev_ops = &rocker_port_swdev_ops;
4627 netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx,
4629 netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx,
4631 rocker_carrier_init(rocker_port);
4633 dev->features |= NETIF_F_NETNS_LOCAL |
4634 NETIF_F_HW_VLAN_CTAG_FILTER |
4635 NETIF_F_HW_SWITCH_OFFLOAD;
4637 err = register_netdev(dev);
4639 dev_err(&pdev->dev, "register_netdev failed\n");
4640 goto err_register_netdev;
4642 rocker->ports[port_number] = rocker_port;
4644 rocker_port_set_learning(rocker_port);
4646 rocker_port->internal_vlan_id =
4647 rocker_port_internal_vlan_id_get(rocker_port, dev->ifindex);
4648 err = rocker_port_ig_tbl(rocker_port, 0);
4650 dev_err(&pdev->dev, "install ig port table failed\n");
4651 goto err_port_ig_tbl;
4657 unregister_netdev(dev);
4658 err_register_netdev:
4663 static int rocker_probe_ports(struct rocker *rocker)
4669 alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
4670 rocker->ports = kmalloc(alloc_size, GFP_KERNEL);
4673 for (i = 0; i < rocker->port_count; i++) {
4674 err = rocker_probe_port(rocker, i);
4681 rocker_remove_ports(rocker);
4685 static int rocker_msix_init(struct rocker *rocker)
4687 struct pci_dev *pdev = rocker->pdev;
4692 msix_entries = pci_msix_vec_count(pdev);
4693 if (msix_entries < 0)
4694 return msix_entries;
4696 if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count))
4699 rocker->msix_entries = kmalloc_array(msix_entries,
4700 sizeof(struct msix_entry),
4702 if (!rocker->msix_entries)
4705 for (i = 0; i < msix_entries; i++)
4706 rocker->msix_entries[i].entry = i;
4708 err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries);
4710 goto err_enable_msix;
4715 kfree(rocker->msix_entries);
4719 static void rocker_msix_fini(struct rocker *rocker)
4721 pci_disable_msix(rocker->pdev);
4722 kfree(rocker->msix_entries);
4725 static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
4727 struct rocker *rocker;
4730 rocker = kzalloc(sizeof(*rocker), GFP_KERNEL);
4734 err = pci_enable_device(pdev);
4736 dev_err(&pdev->dev, "pci_enable_device failed\n");
4737 goto err_pci_enable_device;
4740 err = pci_request_regions(pdev, rocker_driver_name);
4742 dev_err(&pdev->dev, "pci_request_regions failed\n");
4743 goto err_pci_request_regions;
4746 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
4748 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
4750 dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n");
4751 goto err_pci_set_dma_mask;
4754 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
4756 dev_err(&pdev->dev, "pci_set_dma_mask failed\n");
4757 goto err_pci_set_dma_mask;
4761 if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) {
4762 dev_err(&pdev->dev, "invalid PCI region size\n");
4764 goto err_pci_resource_len_check;
4767 rocker->hw_addr = ioremap(pci_resource_start(pdev, 0),
4768 pci_resource_len(pdev, 0));
4769 if (!rocker->hw_addr) {
4770 dev_err(&pdev->dev, "ioremap failed\n");
4774 pci_set_master(pdev);
4776 rocker->pdev = pdev;
4777 pci_set_drvdata(pdev, rocker);
4779 rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT);
4781 err = rocker_msix_init(rocker);
4783 dev_err(&pdev->dev, "MSI-X init failed\n");
4787 err = rocker_basic_hw_test(rocker);
4789 dev_err(&pdev->dev, "basic hw test failed\n");
4790 goto err_basic_hw_test;
4793 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
4795 err = rocker_dma_rings_init(rocker);
4797 goto err_dma_rings_init;
4799 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD),
4800 rocker_cmd_irq_handler, 0,
4801 rocker_driver_name, rocker);
4803 dev_err(&pdev->dev, "cannot assign cmd irq\n");
4804 goto err_request_cmd_irq;
4807 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT),
4808 rocker_event_irq_handler, 0,
4809 rocker_driver_name, rocker);
4811 dev_err(&pdev->dev, "cannot assign event irq\n");
4812 goto err_request_event_irq;
4815 rocker->hw.id = rocker_read64(rocker, SWITCH_ID);
4817 err = rocker_init_tbls(rocker);
4819 dev_err(&pdev->dev, "cannot init rocker tables\n");
4823 err = rocker_probe_ports(rocker);
4825 dev_err(&pdev->dev, "failed to probe ports\n");
4826 goto err_probe_ports;
4829 dev_info(&pdev->dev, "Rocker switch with id %016llx\n", rocker->hw.id);
4834 rocker_free_tbls(rocker);
4836 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
4837 err_request_event_irq:
4838 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
4839 err_request_cmd_irq:
4840 rocker_dma_rings_fini(rocker);
4843 rocker_msix_fini(rocker);
4845 iounmap(rocker->hw_addr);
4847 err_pci_resource_len_check:
4848 err_pci_set_dma_mask:
4849 pci_release_regions(pdev);
4850 err_pci_request_regions:
4851 pci_disable_device(pdev);
4852 err_pci_enable_device:
4857 static void rocker_remove(struct pci_dev *pdev)
4859 struct rocker *rocker = pci_get_drvdata(pdev);
4861 rocker_free_tbls(rocker);
4862 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
4863 rocker_remove_ports(rocker);
4864 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
4865 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
4866 rocker_dma_rings_fini(rocker);
4867 rocker_msix_fini(rocker);
4868 iounmap(rocker->hw_addr);
4869 pci_release_regions(rocker->pdev);
4870 pci_disable_device(rocker->pdev);
4874 static struct pci_driver rocker_pci_driver = {
4875 .name = rocker_driver_name,
4876 .id_table = rocker_pci_id_table,
4877 .probe = rocker_probe,
4878 .remove = rocker_remove,
4881 /************************************
4882 * Net device notifier event handler
4883 ************************************/
4885 static bool rocker_port_dev_check(struct net_device *dev)
4887 return dev->netdev_ops == &rocker_port_netdev_ops;
4890 static int rocker_port_bridge_join(struct rocker_port *rocker_port,
4891 struct net_device *bridge)
4895 rocker_port_internal_vlan_id_put(rocker_port,
4896 rocker_port->dev->ifindex);
4898 rocker_port->bridge_dev = bridge;
4900 /* Use bridge internal VLAN ID for untagged pkts */
4901 err = rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, 0);
4904 rocker_port->internal_vlan_id =
4905 rocker_port_internal_vlan_id_get(rocker_port,
4907 return rocker_port_vlan(rocker_port, 0, 0);
4910 static int rocker_port_bridge_leave(struct rocker_port *rocker_port)
4914 rocker_port_internal_vlan_id_put(rocker_port,
4915 rocker_port->bridge_dev->ifindex);
4917 rocker_port->bridge_dev = NULL;
4919 /* Use port internal VLAN ID for untagged pkts */
4920 err = rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, 0);
4923 rocker_port->internal_vlan_id =
4924 rocker_port_internal_vlan_id_get(rocker_port,
4925 rocker_port->dev->ifindex);
4926 err = rocker_port_vlan(rocker_port, 0, 0);
4930 if (rocker_port->dev->flags & IFF_UP)
4931 err = rocker_port_fwd_enable(rocker_port);
4936 static int rocker_port_master_changed(struct net_device *dev)
4938 struct rocker_port *rocker_port = netdev_priv(dev);
4939 struct net_device *master = netdev_master_upper_dev_get(dev);
4942 /* There are currently three cases handled here:
4943 * 1. Joining a bridge
4944 * 2. Leaving a previously joined bridge
4945 * 3. Other, e.g. being added to or removed from a bond or openvswitch,
4946 * in which case nothing is done
4948 if (master && master->rtnl_link_ops &&
4949 !strcmp(master->rtnl_link_ops->kind, "bridge"))
4950 err = rocker_port_bridge_join(rocker_port, master);
4951 else if (rocker_port_is_bridged(rocker_port))
4952 err = rocker_port_bridge_leave(rocker_port);
4957 static int rocker_netdevice_event(struct notifier_block *unused,
4958 unsigned long event, void *ptr)
4960 struct net_device *dev;
4964 case NETDEV_CHANGEUPPER:
4965 dev = netdev_notifier_info_to_dev(ptr);
4966 if (!rocker_port_dev_check(dev))
4968 err = rocker_port_master_changed(dev);
4971 "failed to reflect master change (err %d)\n",
4979 static struct notifier_block rocker_netdevice_nb __read_mostly = {
4980 .notifier_call = rocker_netdevice_event,
4983 /************************************
4984 * Net event notifier event handler
4985 ************************************/
4987 static int rocker_neigh_update(struct net_device *dev, struct neighbour *n)
4989 struct rocker_port *rocker_port = netdev_priv(dev);
4990 int flags = (n->nud_state & NUD_VALID) ? 0 : ROCKER_OP_FLAG_REMOVE;
4991 __be32 ip_addr = *(__be32 *)n->primary_key;
4993 return rocker_port_ipv4_neigh(rocker_port, flags, ip_addr, n->ha);
4996 static int rocker_netevent_event(struct notifier_block *unused,
4997 unsigned long event, void *ptr)
4999 struct net_device *dev;
5000 struct neighbour *n = ptr;
5004 case NETEVENT_NEIGH_UPDATE:
5005 if (n->tbl != &arp_tbl)
5008 if (!rocker_port_dev_check(dev))
5010 err = rocker_neigh_update(dev, n);
5013 "failed to handle neigh update (err %d)\n",
5021 static struct notifier_block rocker_netevent_nb __read_mostly = {
5022 .notifier_call = rocker_netevent_event,
5025 /***********************
5026 * Module init and exit
5027 ***********************/
5029 static int __init rocker_module_init(void)
5033 register_netdevice_notifier(&rocker_netdevice_nb);
5034 register_netevent_notifier(&rocker_netevent_nb);
5035 err = pci_register_driver(&rocker_pci_driver);
5037 goto err_pci_register_driver;
5040 err_pci_register_driver:
5041 unregister_netdevice_notifier(&rocker_netevent_nb);
5042 unregister_netdevice_notifier(&rocker_netdevice_nb);
5046 static void __exit rocker_module_exit(void)
5048 unregister_netevent_notifier(&rocker_netevent_nb);
5049 unregister_netdevice_notifier(&rocker_netdevice_nb);
5050 pci_unregister_driver(&rocker_pci_driver);
5053 module_init(rocker_module_init);
5054 module_exit(rocker_module_exit);
5056 MODULE_LICENSE("GPL v2");
5057 MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
5058 MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
5059 MODULE_DESCRIPTION("Rocker switch device driver");
5060 MODULE_DEVICE_TABLE(pci, rocker_pci_id_table);