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switchdev: cut over to new switchdev_port_bridge_getlink
[mirror_ubuntu-zesty-kernel.git] / drivers / net / ethernet / rocker / rocker.c
CommitLineData
4b8ac966
JP		 1/*
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>
5 *
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.
10 */
11
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>
9f6bbf7c 19#include <linux/hashtable.h>
4b8ac966
JP		 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>
6c707945 31#include <linux/if_bridge.h>
9f6bbf7c 32#include <linux/bitops.h>
db19170b 33#include <linux/ctype.h>
4b8ac966
JP		 34#include <net/switchdev.h>
35#include <net/rtnetlink.h>
c1beeef7
SF		 36#include <net/ip_fib.h>
37#include <net/netevent.h>
38#include <net/arp.h>
4b8ac966
JP		 39#include <asm-generic/io-64-nonatomic-lo-hi.h>
40#include <generated/utsrelease.h>
41
42#include "rocker.h"
43
44static const char rocker_driver_name[] = "rocker";
45
46static const struct pci_device_id rocker_pci_id_table[] = {
47 {PCI_VDEVICE(REDHAT, PCI_DEVICE_ID_REDHAT_ROCKER), 0},
48 {0, }
49};
50
9f6bbf7c
SF		 51struct rocker_flow_tbl_key {
52 u32 priority;
53 enum rocker_of_dpa_table_id tbl_id;
54 union {
55 struct {
4a6bb6d3
SF		 56 u32 in_pport;
57 u32 in_pport_mask;
9f6bbf7c
SF		 58 enum rocker_of_dpa_table_id goto_tbl;
59 } ig_port;
60 struct {
4a6bb6d3 61 u32 in_pport;
9f6bbf7c
SF		 62 __be16 vlan_id;
63 __be16 vlan_id_mask;
64 enum rocker_of_dpa_table_id goto_tbl;
65 bool untagged;
66 __be16 new_vlan_id;
67 } vlan;
68 struct {
4a6bb6d3
SF		 69 u32 in_pport;
70 u32 in_pport_mask;
9f6bbf7c
SF		 71 __be16 eth_type;
72 u8 eth_dst[ETH_ALEN];
73 u8 eth_dst_mask[ETH_ALEN];
74 __be16 vlan_id;
75 __be16 vlan_id_mask;
76 enum rocker_of_dpa_table_id goto_tbl;
77 bool copy_to_cpu;
78 } term_mac;
79 struct {
80 __be16 eth_type;
81 __be32 dst4;
82 __be32 dst4_mask;
83 enum rocker_of_dpa_table_id goto_tbl;
84 u32 group_id;
85 } ucast_routing;
86 struct {
87 u8 eth_dst[ETH_ALEN];
88 u8 eth_dst_mask[ETH_ALEN];
89 int has_eth_dst;
90 int has_eth_dst_mask;
91 __be16 vlan_id;
92 u32 tunnel_id;
93 enum rocker_of_dpa_table_id goto_tbl;
94 u32 group_id;
95 bool copy_to_cpu;
96 } bridge;
97 struct {
4a6bb6d3
SF		 98 u32 in_pport;
99 u32 in_pport_mask;
9f6bbf7c
SF		 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];
104 __be16 eth_type;
105 __be16 vlan_id;
106 __be16 vlan_id_mask;
107 u8 ip_proto;
108 u8 ip_proto_mask;
109 u8 ip_tos;
110 u8 ip_tos_mask;
111 u32 group_id;
112 } acl;
113 };
114};
115
116struct rocker_flow_tbl_entry {
117 struct hlist_node entry;
c1beeef7 118 u32 cmd;
9f6bbf7c
SF		 119 u64 cookie;
120 struct rocker_flow_tbl_key key;
c1beeef7 121 size_t key_len;
9f6bbf7c
SF		 122 u32 key_crc32; /* key */
123};
124
125struct rocker_group_tbl_entry {
126 struct hlist_node entry;
127 u32 cmd;
128 u32 group_id; /* key */
129 u16 group_count;
130 u32 *group_ids;
131 union {
132 struct {
133 u8 pop_vlan;
134 } l2_interface;
135 struct {
136 u8 eth_src[ETH_ALEN];
137 u8 eth_dst[ETH_ALEN];
138 __be16 vlan_id;
139 u32 group_id;
140 } l2_rewrite;
141 struct {
142 u8 eth_src[ETH_ALEN];
143 u8 eth_dst[ETH_ALEN];
144 __be16 vlan_id;
145 bool ttl_check;
146 u32 group_id;
147 } l3_unicast;
148 };
149};
150
151struct rocker_fdb_tbl_entry {
152 struct hlist_node entry;
153 u32 key_crc32; /* key */
154 bool learned;
155 struct rocker_fdb_tbl_key {
4a6bb6d3 156 u32 pport;
9f6bbf7c
SF		 157 u8 addr[ETH_ALEN];
158 __be16 vlan_id;
159 } key;
160};
161
162struct rocker_internal_vlan_tbl_entry {
163 struct hlist_node entry;
164 int ifindex; /* key */
165 u32 ref_count;
166 __be16 vlan_id;
167};
168
c1beeef7
SF		 169struct rocker_neigh_tbl_entry {
170 struct hlist_node entry;
171 __be32 ip_addr; /* key */
172 struct net_device *dev;
173 u32 ref_count;
174 u32 index;
175 u8 eth_dst[ETH_ALEN];
176 bool ttl_check;
177};
178
4b8ac966
JP		 179struct rocker_desc_info {
180 char *data; /* mapped */
181 size_t data_size;
182 size_t tlv_size;
183 struct rocker_desc *desc;
184 DEFINE_DMA_UNMAP_ADDR(mapaddr);
185};
186
187struct rocker_dma_ring_info {
188 size_t size;
189 u32 head;
190 u32 tail;
191 struct rocker_desc *desc; /* mapped */
192 dma_addr_t mapaddr;
193 struct rocker_desc_info *desc_info;
194 unsigned int type;
195};
196
197struct rocker;
198
9f6bbf7c
SF		 199enum {
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,
205 ROCKER_CTRL_MAX,
206};
207
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)
212
4b8ac966
JP		 213struct rocker_port {
214 struct net_device *dev;
6c707945 215 struct net_device *bridge_dev;
4b8ac966
JP		 216 struct rocker *rocker;
217 unsigned int port_number;
4a6bb6d3 218 u32 pport;
9f6bbf7c 219 __be16 internal_vlan_id;
6c707945 220 int stp_state;
5111f80c 221 u32 brport_flags;
9f6bbf7c
SF		 222 bool ctrls[ROCKER_CTRL_MAX];
223 unsigned long vlan_bitmap[ROCKER_VLAN_BITMAP_LEN];
4b8ac966
JP		 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;
c4f20321 228 struct list_head trans_mem;
4b8ac966
JP		 229};
230
231struct rocker {
232 struct pci_dev *pdev;
233 u8 __iomem *hw_addr;
234 struct msix_entry *msix_entries;
235 unsigned int port_count;
236 struct rocker_port **ports;
237 struct {
238 u64 id;
239 } hw;
240 spinlock_t cmd_ring_lock;
241 struct rocker_dma_ring_info cmd_ring;
242 struct rocker_dma_ring_info event_ring;
9f6bbf7c
SF		 243 DECLARE_HASHTABLE(flow_tbl, 16);
244 spinlock_t flow_tbl_lock;
245 u64 flow_tbl_next_cookie;
246 DECLARE_HASHTABLE(group_tbl, 16);
247 spinlock_t group_tbl_lock;
248 DECLARE_HASHTABLE(fdb_tbl, 16);
249 spinlock_t fdb_tbl_lock;
250 unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN];
251 DECLARE_HASHTABLE(internal_vlan_tbl, 8);
252 spinlock_t internal_vlan_tbl_lock;
c1beeef7
SF		 253 DECLARE_HASHTABLE(neigh_tbl, 16);
254 spinlock_t neigh_tbl_lock;
255 u32 neigh_tbl_next_index;
9f6bbf7c
SF		 256};
257
258static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
259static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
260static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
261static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
262static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
263static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
264static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
265static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
266static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
267
268/* Rocker priority levels for flow table entries. Higher
269 * priority match takes precedence over lower priority match.
270 */
271
272enum {
273 ROCKER_PRIORITY_UNKNOWN = 0,
274 ROCKER_PRIORITY_IG_PORT = 1,
275 ROCKER_PRIORITY_VLAN = 1,
276 ROCKER_PRIORITY_TERM_MAC_UCAST = 0,
277 ROCKER_PRIORITY_TERM_MAC_MCAST = 1,
9f6bbf7c
SF		 278 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1,
279 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2,
280 ROCKER_PRIORITY_BRIDGING_VLAN = 3,
281 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1,
282 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2,
283 ROCKER_PRIORITY_BRIDGING_TENANT = 3,
284 ROCKER_PRIORITY_ACL_CTRL = 3,
285 ROCKER_PRIORITY_ACL_NORMAL = 2,
286 ROCKER_PRIORITY_ACL_DFLT = 1,
4b8ac966
JP		 287};
288
9f6bbf7c
SF		 289static bool rocker_vlan_id_is_internal(__be16 vlan_id)
290{
291 u16 start = ROCKER_INTERNAL_VLAN_ID_BASE;
292 u16 end = 0xffe;
293 u16 _vlan_id = ntohs(vlan_id);
294
295 return (_vlan_id >= start && _vlan_id <= end);
296}
297
298static __be16 rocker_port_vid_to_vlan(struct rocker_port *rocker_port,
299 u16 vid, bool *pop_vlan)
300{
301 __be16 vlan_id;
302
303 if (pop_vlan)
304 *pop_vlan = false;
305 vlan_id = htons(vid);
306 if (!vlan_id) {
307 vlan_id = rocker_port->internal_vlan_id;
308 if (pop_vlan)
309 *pop_vlan = true;
310 }
311
312 return vlan_id;
313}
314
6c707945
SF		 315static u16 rocker_port_vlan_to_vid(struct rocker_port *rocker_port,
316 __be16 vlan_id)
317{
318 if (rocker_vlan_id_is_internal(vlan_id))
319 return 0;
320
321 return ntohs(vlan_id);
322}
323
324static bool rocker_port_is_bridged(struct rocker_port *rocker_port)
325{
326 return !!rocker_port->bridge_dev;
327}
328
c4f20321
SF		 329static void *__rocker_port_mem_alloc(struct rocker_port *rocker_port,
330 enum switchdev_trans trans, size_t size)
331{
332 struct list_head *elem = NULL;
333
334 /* If in transaction prepare phase, allocate the memory
335 * and enqueue it on a per-port list. If in transaction
336 * commit phase, dequeue the memory from the per-port list
337 * rather than re-allocating the memory. The idea is the
338 * driver code paths for prepare and commit are identical
339 * so the memory allocated in the prepare phase is the
340 * memory used in the commit phase.
341 */
342
343 switch (trans) {
344 case SWITCHDEV_TRANS_PREPARE:
345 elem = kzalloc(size + sizeof(*elem), GFP_KERNEL);
346 if (!elem)
347 return NULL;
348 list_add_tail(elem, &rocker_port->trans_mem);
349 break;
350 case SWITCHDEV_TRANS_COMMIT:
351 BUG_ON(list_empty(&rocker_port->trans_mem));
352 elem = rocker_port->trans_mem.next;
353 list_del_init(elem);
354 break;
355 case SWITCHDEV_TRANS_NONE:
356 elem = kzalloc(size + sizeof(*elem), GFP_KERNEL);
357 if (elem)
358 INIT_LIST_HEAD(elem);
359 break;
360 default:
361 break;
362 }
363
364 return elem ? elem + 1 : NULL;
365}
366
367static void *rocker_port_kzalloc(struct rocker_port *rocker_port,
368 enum switchdev_trans trans, size_t size)
369{
370 return __rocker_port_mem_alloc(rocker_port, trans, size);
371}
372
373static void *rocker_port_kcalloc(struct rocker_port *rocker_port,
374 enum switchdev_trans trans, size_t n,
375 size_t size)
376{
377 return __rocker_port_mem_alloc(rocker_port, trans, n * size);
378}
379
380static void rocker_port_kfree(struct rocker_port *rocker_port,
381 enum switchdev_trans trans, const void *mem)
382{
383 struct list_head *elem;
384
385 /* Frees are ignored if in transaction prepare phase. The
386 * memory remains on the per-port list until freed in the
387 * commit phase.
388 */
389
390 if (trans == SWITCHDEV_TRANS_PREPARE)
391 return;
392
393 elem = (struct list_head *)mem - 1;
394 BUG_ON(!list_empty(elem));
395 kfree(elem);
396}
397
4b8ac966
JP		 398struct rocker_wait {
399 wait_queue_head_t wait;
400 bool done;
4b8ac966
JP		 401};
402
403static void rocker_wait_reset(struct rocker_wait *wait)
404{
405 wait->done = false;
4b8ac966
JP		 406}
407
408static void rocker_wait_init(struct rocker_wait *wait)
409{
410 init_waitqueue_head(&wait->wait);
411 rocker_wait_reset(wait);
412}
413
c4f20321
SF		 414static struct rocker_wait *rocker_wait_create(struct rocker_port *rocker_port,
415 enum switchdev_trans trans)
4b8ac966
JP		 416{
417 struct rocker_wait *wait;
418
c4f20321 419 wait = rocker_port_kzalloc(rocker_port, trans, sizeof(*wait));
4b8ac966
JP		 420 if (!wait)
421 return NULL;
422 rocker_wait_init(wait);
423 return wait;
424}
425
c4f20321
SF		 426static void rocker_wait_destroy(struct rocker_port *rocker_port,
427 enum switchdev_trans trans,
428 struct rocker_wait *wait)
4b8ac966 429{
c4f20321 430 rocker_port_kfree(rocker_port, trans, wait);
4b8ac966
JP		 431}
432
433static bool rocker_wait_event_timeout(struct rocker_wait *wait,
434 unsigned long timeout)
435{
436 wait_event_timeout(wait->wait, wait->done, HZ / 10);
437 if (!wait->done)
438 return false;
439 return true;
440}
441
442static void rocker_wait_wake_up(struct rocker_wait *wait)
443{
444 wait->done = true;
445 wake_up(&wait->wait);
446}
447
448static u32 rocker_msix_vector(struct rocker *rocker, unsigned int vector)
449{
450 return rocker->msix_entries[vector].vector;
451}
452
453static u32 rocker_msix_tx_vector(struct rocker_port *rocker_port)
454{
455 return rocker_msix_vector(rocker_port->rocker,
456 ROCKER_MSIX_VEC_TX(rocker_port->port_number));
457}
458
459static u32 rocker_msix_rx_vector(struct rocker_port *rocker_port)
460{
461 return rocker_msix_vector(rocker_port->rocker,
462 ROCKER_MSIX_VEC_RX(rocker_port->port_number));
463}
464
465#define rocker_write32(rocker, reg, val) \
466 writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))
467#define rocker_read32(rocker, reg) \
468 readl((rocker)->hw_addr + (ROCKER_ ## reg))
469#define rocker_write64(rocker, reg, val) \
470 writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))
471#define rocker_read64(rocker, reg) \
472 readq((rocker)->hw_addr + (ROCKER_ ## reg))
473
474/*****************************
475 * HW basic testing functions
476 *****************************/
477
478static int rocker_reg_test(struct rocker *rocker)
479{
480 struct pci_dev *pdev = rocker->pdev;
481 u64 test_reg;
482 u64 rnd;
483
484 rnd = prandom_u32();
485 rnd >>= 1;
486 rocker_write32(rocker, TEST_REG, rnd);
487 test_reg = rocker_read32(rocker, TEST_REG);
488 if (test_reg != rnd * 2) {
489 dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n",
490 test_reg, rnd * 2);
491 return -EIO;
492 }
493
494 rnd = prandom_u32();
495 rnd <<= 31;
496 rnd |= prandom_u32();
497 rocker_write64(rocker, TEST_REG64, rnd);
498 test_reg = rocker_read64(rocker, TEST_REG64);
499 if (test_reg != rnd * 2) {
500 dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n",
501 test_reg, rnd * 2);
502 return -EIO;
503 }
504
505 return 0;
506}
507
508static int rocker_dma_test_one(struct rocker *rocker, struct rocker_wait *wait,
509 u32 test_type, dma_addr_t dma_handle,
510 unsigned char *buf, unsigned char *expect,
511 size_t size)
512{
513 struct pci_dev *pdev = rocker->pdev;
514 int i;
515
516 rocker_wait_reset(wait);
517 rocker_write32(rocker, TEST_DMA_CTRL, test_type);
518
519 if (!rocker_wait_event_timeout(wait, HZ / 10)) {
520 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
521 return -EIO;
522 }
523
524 for (i = 0; i < size; i++) {
525 if (buf[i] != expect[i]) {
526 dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected",
527 buf[i], i, expect[i]);
528 return -EIO;
529 }
530 }
531 return 0;
532}
533
534#define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)
535#define ROCKER_TEST_DMA_FILL_PATTERN 0x96
536
537static int rocker_dma_test_offset(struct rocker *rocker,
538 struct rocker_wait *wait, int offset)
539{
540 struct pci_dev *pdev = rocker->pdev;
541 unsigned char *alloc;
542 unsigned char *buf;
543 unsigned char *expect;
544 dma_addr_t dma_handle;
545 int i;
546 int err;
547
548 alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset,
549 GFP_KERNEL | GFP_DMA);
550 if (!alloc)
551 return -ENOMEM;
552 buf = alloc + offset;
553 expect = buf + ROCKER_TEST_DMA_BUF_SIZE;
554
555 dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE,
556 PCI_DMA_BIDIRECTIONAL);
557 if (pci_dma_mapping_error(pdev, dma_handle)) {
558 err = -EIO;
559 goto free_alloc;
560 }
561
562 rocker_write64(rocker, TEST_DMA_ADDR, dma_handle);
563 rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE);
564
565 memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE);
566 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL,
567 dma_handle, buf, expect,
568 ROCKER_TEST_DMA_BUF_SIZE);
569 if (err)
570 goto unmap;
571
572 memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE);
573 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR,
574 dma_handle, buf, expect,
575 ROCKER_TEST_DMA_BUF_SIZE);
576 if (err)
577 goto unmap;
578
579 prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
580 for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++)
581 expect[i] = ~buf[i];
582 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT,
583 dma_handle, buf, expect,
584 ROCKER_TEST_DMA_BUF_SIZE);
585 if (err)
586 goto unmap;
587
588unmap:
589 pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE,
590 PCI_DMA_BIDIRECTIONAL);
591free_alloc:
592 kfree(alloc);
593
594 return err;
595}
596
597static int rocker_dma_test(struct rocker *rocker, struct rocker_wait *wait)
598{
599 int i;
600 int err;
601
602 for (i = 0; i < 8; i++) {
603 err = rocker_dma_test_offset(rocker, wait, i);
604 if (err)
605 return err;
606 }
607 return 0;
608}
609
610static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id)
611{
612 struct rocker_wait *wait = dev_id;
613
614 rocker_wait_wake_up(wait);
615
616 return IRQ_HANDLED;
617}
618
619static int rocker_basic_hw_test(struct rocker *rocker)
620{
621 struct pci_dev *pdev = rocker->pdev;
622 struct rocker_wait wait;
623 int err;
624
625 err = rocker_reg_test(rocker);
626 if (err) {
627 dev_err(&pdev->dev, "reg test failed\n");
628 return err;
629 }
630
631 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST),
632 rocker_test_irq_handler, 0,
633 rocker_driver_name, &wait);
634 if (err) {
635 dev_err(&pdev->dev, "cannot assign test irq\n");
636 return err;
637 }
638
639 rocker_wait_init(&wait);
640 rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST);
641
642 if (!rocker_wait_event_timeout(&wait, HZ / 10)) {
643 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
644 err = -EIO;
645 goto free_irq;
646 }
647
648 err = rocker_dma_test(rocker, &wait);
649 if (err)
650 dev_err(&pdev->dev, "dma test failed\n");
651
652free_irq:
653 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait);
654 return err;
655}
656
657/******
658 * TLV
659 ******/
660
661#define ROCKER_TLV_ALIGNTO 8U
662#define ROCKER_TLV_ALIGN(len) \
663 (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
664#define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
665
666/* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
667 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
668 * | Header | Pad | Payload | Pad |
669 * | (struct rocker_tlv) | ing | | ing |
670 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
671 * <--------------------------- tlv->len -------------------------->
672 */
673
674static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv,
675 int *remaining)
676{
677 int totlen = ROCKER_TLV_ALIGN(tlv->len);
678
679 *remaining -= totlen;
680 return (struct rocker_tlv *) ((char *) tlv + totlen);
681}
682
683static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining)
684{
685 return remaining >= (int) ROCKER_TLV_HDRLEN &&
686 tlv->len >= ROCKER_TLV_HDRLEN &&
687 tlv->len <= remaining;
688}
689
690#define rocker_tlv_for_each(pos, head, len, rem) \
691 for (pos = head, rem = len; \
692 rocker_tlv_ok(pos, rem); \
693 pos = rocker_tlv_next(pos, &(rem)))
694
695#define rocker_tlv_for_each_nested(pos, tlv, rem) \
696 rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
697 rocker_tlv_len(tlv), rem)
698
699static int rocker_tlv_attr_size(int payload)
700{
701 return ROCKER_TLV_HDRLEN + payload;
702}
703
704static int rocker_tlv_total_size(int payload)
705{
706 return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload));
707}
708
709static int rocker_tlv_padlen(int payload)
710{
711 return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload);
712}
713
714static int rocker_tlv_type(const struct rocker_tlv *tlv)
715{
716 return tlv->type;
717}
718
719static void *rocker_tlv_data(const struct rocker_tlv *tlv)
720{
721 return (char *) tlv + ROCKER_TLV_HDRLEN;
722}
723
724static int rocker_tlv_len(const struct rocker_tlv *tlv)
725{
726 return tlv->len - ROCKER_TLV_HDRLEN;
727}
728
729static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv)
730{
731 return *(u8 *) rocker_tlv_data(tlv);
732}
733
734static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv)
735{
736 return *(u16 *) rocker_tlv_data(tlv);
737}
738
9b03c71f
JP		 739static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv)
740{
741 return *(__be16 *) rocker_tlv_data(tlv);
742}
743
4b8ac966
JP		 744static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv)
745{
746 return *(u32 *) rocker_tlv_data(tlv);
747}
748
749static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv)
750{
751 return *(u64 *) rocker_tlv_data(tlv);
752}
753
754static void rocker_tlv_parse(struct rocker_tlv **tb, int maxtype,
755 const char *buf, int buf_len)
756{
757 const struct rocker_tlv *tlv;
758 const struct rocker_tlv *head = (const struct rocker_tlv *) buf;
759 int rem;
760
761 memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1));
762
763 rocker_tlv_for_each(tlv, head, buf_len, rem) {
764 u32 type = rocker_tlv_type(tlv);
765
766 if (type > 0 && type <= maxtype)
767 tb[type] = (struct rocker_tlv *) tlv;
768 }
769}
770
771static void rocker_tlv_parse_nested(struct rocker_tlv **tb, int maxtype,
772 const struct rocker_tlv *tlv)
773{
774 rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv),
775 rocker_tlv_len(tlv));
776}
777
778static void rocker_tlv_parse_desc(struct rocker_tlv **tb, int maxtype,
779 struct rocker_desc_info *desc_info)
780{
781 rocker_tlv_parse(tb, maxtype, desc_info->data,
782 desc_info->desc->tlv_size);
783}
784
785static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info)
786{
787 return (struct rocker_tlv *) ((char *) desc_info->data +
788 desc_info->tlv_size);
789}
790
791static int rocker_tlv_put(struct rocker_desc_info *desc_info,
792 int attrtype, int attrlen, const void *data)
793{
794 int tail_room = desc_info->data_size - desc_info->tlv_size;
795 int total_size = rocker_tlv_total_size(attrlen);
796 struct rocker_tlv *tlv;
797
798 if (unlikely(tail_room < total_size))
799 return -EMSGSIZE;
800
801 tlv = rocker_tlv_start(desc_info);
802 desc_info->tlv_size += total_size;
803 tlv->type = attrtype;
804 tlv->len = rocker_tlv_attr_size(attrlen);
805 memcpy(rocker_tlv_data(tlv), data, attrlen);
806 memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen));
807 return 0;
808}
809
810static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info,
811 int attrtype, u8 value)
812{
813 return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value);
814}
815
816static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info,
817 int attrtype, u16 value)
818{
819 return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value);
820}
821
9b03c71f
JP		 822static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info,
823 int attrtype, __be16 value)
824{
825 return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value);
826}
827
4b8ac966
JP		 828static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info,
829 int attrtype, u32 value)
830{
831 return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value);
832}
833
9b03c71f
JP		 834static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info,
835 int attrtype, __be32 value)
836{
837 return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value);
838}
839
4b8ac966
JP		 840static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info,
841 int attrtype, u64 value)
842{
843 return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value);
844}
845
846static struct rocker_tlv *
847rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype)
848{
849 struct rocker_tlv *start = rocker_tlv_start(desc_info);
850
851 if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0)
852 return NULL;
853
854 return start;
855}
856
857static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info,
858 struct rocker_tlv *start)
859{
860 start->len = (char *) rocker_tlv_start(desc_info) - (char *) start;
861}
862
863static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info,
864 struct rocker_tlv *start)
865{
866 desc_info->tlv_size = (char *) start - desc_info->data;
867}
868
869/******************************************
870 * DMA rings and descriptors manipulations
871 ******************************************/
872
873static u32 __pos_inc(u32 pos, size_t limit)
874{
875 return ++pos == limit ? 0 : pos;
876}
877
878static int rocker_desc_err(struct rocker_desc_info *desc_info)
879{
7eb344f8
SF		 880 int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN;
881
882 switch (err) {
883 case ROCKER_OK:
884 return 0;
885 case -ROCKER_ENOENT:
886 return -ENOENT;
887 case -ROCKER_ENXIO:
888 return -ENXIO;
889 case -ROCKER_ENOMEM:
890 return -ENOMEM;
891 case -ROCKER_EEXIST:
892 return -EEXIST;
893 case -ROCKER_EINVAL:
894 return -EINVAL;
895 case -ROCKER_EMSGSIZE:
896 return -EMSGSIZE;
897 case -ROCKER_ENOTSUP:
898 return -EOPNOTSUPP;
899 case -ROCKER_ENOBUFS:
900 return -ENOBUFS;
901 }
902
903 return -EINVAL;
4b8ac966
JP		 904}
905
906static void rocker_desc_gen_clear(struct rocker_desc_info *desc_info)
907{
908 desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN;
909}
910
911static bool rocker_desc_gen(struct rocker_desc_info *desc_info)
912{
913 u32 comp_err = desc_info->desc->comp_err;
914
915 return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false;
916}
917
918static void *rocker_desc_cookie_ptr_get(struct rocker_desc_info *desc_info)
919{
adedf37b 920 return (void *)(uintptr_t)desc_info->desc->cookie;
4b8ac966
JP		 921}
922
923static void rocker_desc_cookie_ptr_set(struct rocker_desc_info *desc_info,
924 void *ptr)
925{
adedf37b 926 desc_info->desc->cookie = (uintptr_t) ptr;
4b8ac966
JP		 927}
928
929static struct rocker_desc_info *
930rocker_desc_head_get(struct rocker_dma_ring_info *info)
931{
932 static struct rocker_desc_info *desc_info;
933 u32 head = __pos_inc(info->head, info->size);
934
935 desc_info = &info->desc_info[info->head];
936 if (head == info->tail)
937 return NULL; /* ring full */
938 desc_info->tlv_size = 0;
939 return desc_info;
940}
941
942static void rocker_desc_commit(struct rocker_desc_info *desc_info)
943{
944 desc_info->desc->buf_size = desc_info->data_size;
945 desc_info->desc->tlv_size = desc_info->tlv_size;
946}
947
948static void rocker_desc_head_set(struct rocker *rocker,
949 struct rocker_dma_ring_info *info,
950 struct rocker_desc_info *desc_info)
951{
952 u32 head = __pos_inc(info->head, info->size);
953
954 BUG_ON(head == info->tail);
955 rocker_desc_commit(desc_info);
956 info->head = head;
957 rocker_write32(rocker, DMA_DESC_HEAD(info->type), head);
958}
959
960static struct rocker_desc_info *
961rocker_desc_tail_get(struct rocker_dma_ring_info *info)
962{
963 static struct rocker_desc_info *desc_info;
964
965 if (info->tail == info->head)
966 return NULL; /* nothing to be done between head and tail */
967 desc_info = &info->desc_info[info->tail];
968 if (!rocker_desc_gen(desc_info))
969 return NULL; /* gen bit not set, desc is not ready yet */
970 info->tail = __pos_inc(info->tail, info->size);
971 desc_info->tlv_size = desc_info->desc->tlv_size;
972 return desc_info;
973}
974
975static void rocker_dma_ring_credits_set(struct rocker *rocker,
976 struct rocker_dma_ring_info *info,
977 u32 credits)
978{
979 if (credits)
980 rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits);
981}
982
983static unsigned long rocker_dma_ring_size_fix(size_t size)
984{
985 return max(ROCKER_DMA_SIZE_MIN,
986 min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX));
987}
988
989static int rocker_dma_ring_create(struct rocker *rocker,
990 unsigned int type,
991 size_t size,
992 struct rocker_dma_ring_info *info)
993{
994 int i;
995
996 BUG_ON(size != rocker_dma_ring_size_fix(size));
997 info->size = size;
998 info->type = type;
999 info->head = 0;
1000 info->tail = 0;
1001 info->desc_info = kcalloc(info->size, sizeof(*info->desc_info),
1002 GFP_KERNEL);
1003 if (!info->desc_info)
1004 return -ENOMEM;
1005
1006 info->desc = pci_alloc_consistent(rocker->pdev,
1007 info->size * sizeof(*info->desc),
1008 &info->mapaddr);
1009 if (!info->desc) {
1010 kfree(info->desc_info);
1011 return -ENOMEM;
1012 }
1013
1014 for (i = 0; i < info->size; i++)
1015 info->desc_info[i].desc = &info->desc[i];
1016
1017 rocker_write32(rocker, DMA_DESC_CTRL(info->type),
1018 ROCKER_DMA_DESC_CTRL_RESET);
1019 rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr);
1020 rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size);
1021
1022 return 0;
1023}
1024
1025static void rocker_dma_ring_destroy(struct rocker *rocker,
1026 struct rocker_dma_ring_info *info)
1027{
1028 rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0);
1029
1030 pci_free_consistent(rocker->pdev,
1031 info->size * sizeof(struct rocker_desc),
1032 info->desc, info->mapaddr);
1033 kfree(info->desc_info);
1034}
1035
1036static void rocker_dma_ring_pass_to_producer(struct rocker *rocker,
1037 struct rocker_dma_ring_info *info)
1038{
1039 int i;
1040
1041 BUG_ON(info->head || info->tail);
1042
1043 /* When ring is consumer, we need to advance head for each desc.
1044 * That tells hw that the desc is ready to be used by it.
1045 */
1046 for (i = 0; i < info->size - 1; i++)
1047 rocker_desc_head_set(rocker, info, &info->desc_info[i]);
1048 rocker_desc_commit(&info->desc_info[i]);
1049}
1050
1051static int rocker_dma_ring_bufs_alloc(struct rocker *rocker,
1052 struct rocker_dma_ring_info *info,
1053 int direction, size_t buf_size)
1054{
1055 struct pci_dev *pdev = rocker->pdev;
1056 int i;
1057 int err;
1058
1059 for (i = 0; i < info->size; i++) {
1060 struct rocker_desc_info *desc_info = &info->desc_info[i];
1061 struct rocker_desc *desc = &info->desc[i];
1062 dma_addr_t dma_handle;
1063 char *buf;
1064
1065 buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA);
1066 if (!buf) {
1067 err = -ENOMEM;
1068 goto rollback;
1069 }
1070
1071 dma_handle = pci_map_single(pdev, buf, buf_size, direction);
1072 if (pci_dma_mapping_error(pdev, dma_handle)) {
1073 kfree(buf);
1074 err = -EIO;
1075 goto rollback;
1076 }
1077
1078 desc_info->data = buf;
1079 desc_info->data_size = buf_size;
1080 dma_unmap_addr_set(desc_info, mapaddr, dma_handle);
1081
1082 desc->buf_addr = dma_handle;
1083 desc->buf_size = buf_size;
1084 }
1085 return 0;
1086
1087rollback:
1088 for (i--; i >= 0; i--) {
1089 struct rocker_desc_info *desc_info = &info->desc_info[i];
1090
1091 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1092 desc_info->data_size, direction);
1093 kfree(desc_info->data);
1094 }
1095 return err;
1096}
1097
1098static void rocker_dma_ring_bufs_free(struct rocker *rocker,
1099 struct rocker_dma_ring_info *info,
1100 int direction)
1101{
1102 struct pci_dev *pdev = rocker->pdev;
1103 int i;
1104
1105 for (i = 0; i < info->size; i++) {
1106 struct rocker_desc_info *desc_info = &info->desc_info[i];
1107 struct rocker_desc *desc = &info->desc[i];
1108
1109 desc->buf_addr = 0;
1110 desc->buf_size = 0;
1111 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1112 desc_info->data_size, direction);
1113 kfree(desc_info->data);
1114 }
1115}
1116
1117static int rocker_dma_rings_init(struct rocker *rocker)
1118{
1119 struct pci_dev *pdev = rocker->pdev;
1120 int err;
1121
1122 err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD,
1123 ROCKER_DMA_CMD_DEFAULT_SIZE,
1124 &rocker->cmd_ring);
1125 if (err) {
1126 dev_err(&pdev->dev, "failed to create command dma ring\n");
1127 return err;
1128 }
1129
1130 spin_lock_init(&rocker->cmd_ring_lock);
1131
1132 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring,
1133 PCI_DMA_BIDIRECTIONAL, PAGE_SIZE);
1134 if (err) {
1135 dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n");
1136 goto err_dma_cmd_ring_bufs_alloc;
1137 }
1138
1139 err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT,
1140 ROCKER_DMA_EVENT_DEFAULT_SIZE,
1141 &rocker->event_ring);
1142 if (err) {
1143 dev_err(&pdev->dev, "failed to create event dma ring\n");
1144 goto err_dma_event_ring_create;
1145 }
1146
1147 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring,
1148 PCI_DMA_FROMDEVICE, PAGE_SIZE);
1149 if (err) {
1150 dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n");
1151 goto err_dma_event_ring_bufs_alloc;
1152 }
1153 rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring);
1154 return 0;
1155
1156err_dma_event_ring_bufs_alloc:
1157 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1158err_dma_event_ring_create:
1159 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1160 PCI_DMA_BIDIRECTIONAL);
1161err_dma_cmd_ring_bufs_alloc:
1162 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1163 return err;
1164}
1165
1166static void rocker_dma_rings_fini(struct rocker *rocker)
1167{
1168 rocker_dma_ring_bufs_free(rocker, &rocker->event_ring,
1169 PCI_DMA_BIDIRECTIONAL);
1170 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1171 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1172 PCI_DMA_BIDIRECTIONAL);
1173 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1174}
1175
1176static int rocker_dma_rx_ring_skb_map(struct rocker *rocker,
1177 struct rocker_port *rocker_port,
1178 struct rocker_desc_info *desc_info,
1179 struct sk_buff *skb, size_t buf_len)
1180{
1181 struct pci_dev *pdev = rocker->pdev;
1182 dma_addr_t dma_handle;
1183
1184 dma_handle = pci_map_single(pdev, skb->data, buf_len,
1185 PCI_DMA_FROMDEVICE);
1186 if (pci_dma_mapping_error(pdev, dma_handle))
1187 return -EIO;
1188 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle))
1189 goto tlv_put_failure;
1190 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len))
1191 goto tlv_put_failure;
1192 return 0;
1193
1194tlv_put_failure:
1195 pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE);
1196 desc_info->tlv_size = 0;
1197 return -EMSGSIZE;
1198}
1199
1200static size_t rocker_port_rx_buf_len(struct rocker_port *rocker_port)
1201{
1202 return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
1203}
1204
1205static int rocker_dma_rx_ring_skb_alloc(struct rocker *rocker,
1206 struct rocker_port *rocker_port,
1207 struct rocker_desc_info *desc_info)
1208{
1209 struct net_device *dev = rocker_port->dev;
1210 struct sk_buff *skb;
1211 size_t buf_len = rocker_port_rx_buf_len(rocker_port);
1212 int err;
1213
1214 /* Ensure that hw will see tlv_size zero in case of an error.
1215 * That tells hw to use another descriptor.
1216 */
1217 rocker_desc_cookie_ptr_set(desc_info, NULL);
1218 desc_info->tlv_size = 0;
1219
1220 skb = netdev_alloc_skb_ip_align(dev, buf_len);
1221 if (!skb)
1222 return -ENOMEM;
1223 err = rocker_dma_rx_ring_skb_map(rocker, rocker_port, desc_info,
1224 skb, buf_len);
1225 if (err) {
1226 dev_kfree_skb_any(skb);
1227 return err;
1228 }
1229 rocker_desc_cookie_ptr_set(desc_info, skb);
1230 return 0;
1231}
1232
1233static void rocker_dma_rx_ring_skb_unmap(struct rocker *rocker,
1234 struct rocker_tlv **attrs)
1235{
1236 struct pci_dev *pdev = rocker->pdev;
1237 dma_addr_t dma_handle;
1238 size_t len;
1239
1240 if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] ||
1241 !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN])
1242 return;
1243 dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]);
1244 len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]);
1245 pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE);
1246}
1247
1248static void rocker_dma_rx_ring_skb_free(struct rocker *rocker,
1249 struct rocker_desc_info *desc_info)
1250{
1251 struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
1252 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
1253
1254 if (!skb)
1255 return;
1256 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
1257 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
1258 dev_kfree_skb_any(skb);
1259}
1260
1261static int rocker_dma_rx_ring_skbs_alloc(struct rocker *rocker,
1262 struct rocker_port *rocker_port)
1263{
1264 struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
1265 int i;
1266 int err;
1267
1268 for (i = 0; i < rx_ring->size; i++) {
1269 err = rocker_dma_rx_ring_skb_alloc(rocker, rocker_port,
1270 &rx_ring->desc_info[i]);
1271 if (err)
1272 goto rollback;
1273 }
1274 return 0;
1275
1276rollback:
1277 for (i--; i >= 0; i--)
1278 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1279 return err;
1280}
1281
1282static void rocker_dma_rx_ring_skbs_free(struct rocker *rocker,
1283 struct rocker_port *rocker_port)
1284{
1285 struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
1286 int i;
1287
1288 for (i = 0; i < rx_ring->size; i++)
1289 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1290}
1291
1292static int rocker_port_dma_rings_init(struct rocker_port *rocker_port)
1293{
1294 struct rocker *rocker = rocker_port->rocker;
1295 int err;
1296
1297 err = rocker_dma_ring_create(rocker,
1298 ROCKER_DMA_TX(rocker_port->port_number),
1299 ROCKER_DMA_TX_DEFAULT_SIZE,
1300 &rocker_port->tx_ring);
1301 if (err) {
1302 netdev_err(rocker_port->dev, "failed to create tx dma ring\n");
1303 return err;
1304 }
1305
1306 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring,
1307 PCI_DMA_TODEVICE,
1308 ROCKER_DMA_TX_DESC_SIZE);
1309 if (err) {
1310 netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n");
1311 goto err_dma_tx_ring_bufs_alloc;
1312 }
1313
1314 err = rocker_dma_ring_create(rocker,
1315 ROCKER_DMA_RX(rocker_port->port_number),
1316 ROCKER_DMA_RX_DEFAULT_SIZE,
1317 &rocker_port->rx_ring);
1318 if (err) {
1319 netdev_err(rocker_port->dev, "failed to create rx dma ring\n");
1320 goto err_dma_rx_ring_create;
1321 }
1322
1323 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring,
1324 PCI_DMA_BIDIRECTIONAL,
1325 ROCKER_DMA_RX_DESC_SIZE);
1326 if (err) {
1327 netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n");
1328 goto err_dma_rx_ring_bufs_alloc;
1329 }
1330
1331 err = rocker_dma_rx_ring_skbs_alloc(rocker, rocker_port);
1332 if (err) {
1333 netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n");
1334 goto err_dma_rx_ring_skbs_alloc;
1335 }
1336 rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring);
1337
1338 return 0;
1339
1340err_dma_rx_ring_skbs_alloc:
1341 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1342 PCI_DMA_BIDIRECTIONAL);
1343err_dma_rx_ring_bufs_alloc:
1344 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1345err_dma_rx_ring_create:
1346 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1347 PCI_DMA_TODEVICE);
1348err_dma_tx_ring_bufs_alloc:
1349 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1350 return err;
1351}
1352
1353static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port)
1354{
1355 struct rocker *rocker = rocker_port->rocker;
1356
1357 rocker_dma_rx_ring_skbs_free(rocker, rocker_port);
1358 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1359 PCI_DMA_BIDIRECTIONAL);
1360 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1361 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1362 PCI_DMA_TODEVICE);
1363 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1364}
1365
1366static void rocker_port_set_enable(struct rocker_port *rocker_port, bool enable)
1367{
1368 u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);
1369
1370 if (enable)
71a83a6d 1371 val |= 1ULL << rocker_port->pport;
4b8ac966 1372 else
71a83a6d 1373 val &= ~(1ULL << rocker_port->pport);
4b8ac966
JP		 1374 rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
1375}
1376
1377/********************************
1378 * Interrupt handler and helpers
1379 ********************************/
1380
1381static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id)
1382{
1383 struct rocker *rocker = dev_id;
1384 struct rocker_desc_info *desc_info;
1385 struct rocker_wait *wait;
1386 u32 credits = 0;
1387
1388 spin_lock(&rocker->cmd_ring_lock);
1389 while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) {
1390 wait = rocker_desc_cookie_ptr_get(desc_info);
c4f20321 1391 rocker_wait_wake_up(wait);
4b8ac966
JP		 1392 credits++;
1393 }
1394 spin_unlock(&rocker->cmd_ring_lock);
1395 rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits);
1396
1397 return IRQ_HANDLED;
1398}
1399
1400static void rocker_port_link_up(struct rocker_port *rocker_port)
1401{
1402 netif_carrier_on(rocker_port->dev);
1403 netdev_info(rocker_port->dev, "Link is up\n");
1404}
1405
1406static void rocker_port_link_down(struct rocker_port *rocker_port)
1407{
1408 netif_carrier_off(rocker_port->dev);
1409 netdev_info(rocker_port->dev, "Link is down\n");
1410}
1411
1412static int rocker_event_link_change(struct rocker *rocker,
1413 const struct rocker_tlv *info)
1414{
1415 struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1];
1416 unsigned int port_number;
1417 bool link_up;
1418 struct rocker_port *rocker_port;
1419
1420 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info);
4a6bb6d3 1421 if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] ||
4b8ac966
JP		 1422 !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP])
1423 return -EIO;
1424 port_number =
4a6bb6d3 1425 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1;
4b8ac966
JP		 1426 link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]);
1427
1428 if (port_number >= rocker->port_count)
1429 return -EINVAL;
1430
1431 rocker_port = rocker->ports[port_number];
1432 if (netif_carrier_ok(rocker_port->dev) != link_up) {
1433 if (link_up)
1434 rocker_port_link_up(rocker_port);
1435 else
1436 rocker_port_link_down(rocker_port);
1437 }
1438
1439 return 0;
1440}
1441
9f6bbf7c 1442#define ROCKER_OP_FLAG_REMOVE BIT(0)
c4f20321
SF		 1443#define ROCKER_OP_FLAG_LEARNED BIT(1)
1444#define ROCKER_OP_FLAG_REFRESH BIT(2)
6c707945
SF		 1445
1446static int rocker_port_fdb(struct rocker_port *rocker_port,
c4f20321 1447 enum switchdev_trans trans,
6c707945
SF		 1448 const unsigned char *addr,
1449 __be16 vlan_id, int flags);
1450
c4f20321
SF		 1451struct rocker_mac_vlan_seen_work {
1452 struct work_struct work;
1453 struct rocker_port *rocker_port;
1454 int flags;
1455 unsigned char addr[ETH_ALEN];
1456 __be16 vlan_id;
1457};
1458
1459static void rocker_event_mac_vlan_seen_work(struct work_struct *work)
1460{
1461 struct rocker_mac_vlan_seen_work *sw =
1462 container_of(work, struct rocker_mac_vlan_seen_work, work);
1463
1464 rtnl_lock();
1465 rocker_port_fdb(sw->rocker_port, SWITCHDEV_TRANS_NONE,
1466 sw->addr, sw->vlan_id, sw->flags);
1467 rtnl_unlock();
1468
1469 kfree(work);
1470}
1471
6c707945
SF		 1472static int rocker_event_mac_vlan_seen(struct rocker *rocker,
1473 const struct rocker_tlv *info)
1474{
c4f20321 1475 struct rocker_mac_vlan_seen_work *sw;
6c707945
SF		 1476 struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1];
1477 unsigned int port_number;
1478 struct rocker_port *rocker_port;
1479 unsigned char *addr;
c4f20321 1480 int flags = ROCKER_OP_FLAG_LEARNED;
6c707945
SF		 1481 __be16 vlan_id;
1482
1483 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info);
4a6bb6d3 1484 if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] ||
6c707945
SF		 1485 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] ||
1486 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID])
1487 return -EIO;
1488 port_number =
4a6bb6d3 1489 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1;
6c707945 1490 addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]);
9b03c71f 1491 vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]);
6c707945
SF		 1492
1493 if (port_number >= rocker->port_count)
1494 return -EINVAL;
1495
1496 rocker_port = rocker->ports[port_number];
1497
1498 if (rocker_port->stp_state != BR_STATE_LEARNING &&
1499 rocker_port->stp_state != BR_STATE_FORWARDING)
1500 return 0;
1501
c4f20321
SF		 1502 sw = kmalloc(sizeof(*sw), GFP_ATOMIC);
1503 if (!sw)
1504 return -ENOMEM;
1505
1506 INIT_WORK(&sw->work, rocker_event_mac_vlan_seen_work);
1507
1508 sw->rocker_port = rocker_port;
1509 sw->flags = flags;
1510 ether_addr_copy(sw->addr, addr);
1511 sw->vlan_id = vlan_id;
1512
1513 schedule_work(&sw->work);
1514
1515 return 0;
6c707945 1516}
9f6bbf7c 1517
4b8ac966
JP		 1518static int rocker_event_process(struct rocker *rocker,
1519 struct rocker_desc_info *desc_info)
1520{
1521 struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1];
1522 struct rocker_tlv *info;
1523 u16 type;
1524
1525 rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info);
1526 if (!attrs[ROCKER_TLV_EVENT_TYPE] ||
1527 !attrs[ROCKER_TLV_EVENT_INFO])
1528 return -EIO;
1529
1530 type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]);
1531 info = attrs[ROCKER_TLV_EVENT_INFO];
1532
1533 switch (type) {
1534 case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED:
1535 return rocker_event_link_change(rocker, info);
6c707945
SF		 1536 case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN:
1537 return rocker_event_mac_vlan_seen(rocker, info);
4b8ac966
JP		 1538 }
1539
1540 return -EOPNOTSUPP;
1541}
1542
1543static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id)
1544{
1545 struct rocker *rocker = dev_id;
1546 struct pci_dev *pdev = rocker->pdev;
1547 struct rocker_desc_info *desc_info;
1548 u32 credits = 0;
1549 int err;
1550
1551 while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) {
1552 err = rocker_desc_err(desc_info);
1553 if (err) {
1554 dev_err(&pdev->dev, "event desc received with err %d\n",
1555 err);
1556 } else {
1557 err = rocker_event_process(rocker, desc_info);
1558 if (err)
1559 dev_err(&pdev->dev, "event processing failed with err %d\n",
1560 err);
1561 }
1562 rocker_desc_gen_clear(desc_info);
1563 rocker_desc_head_set(rocker, &rocker->event_ring, desc_info);
1564 credits++;
1565 }
1566 rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits);
1567
1568 return IRQ_HANDLED;
1569}
1570
1571static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id)
1572{
1573 struct rocker_port *rocker_port = dev_id;
1574
1575 napi_schedule(&rocker_port->napi_tx);
1576 return IRQ_HANDLED;
1577}
1578
1579static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id)
1580{
1581 struct rocker_port *rocker_port = dev_id;
1582
1583 napi_schedule(&rocker_port->napi_rx);
1584 return IRQ_HANDLED;
1585}
1586
1587/********************
1588 * Command interface
1589 ********************/
1590
1591typedef int (*rocker_cmd_cb_t)(struct rocker *rocker,
1592 struct rocker_port *rocker_port,
1593 struct rocker_desc_info *desc_info,
1594 void *priv);
1595
1596static int rocker_cmd_exec(struct rocker *rocker,
1597 struct rocker_port *rocker_port,
c4f20321 1598 enum switchdev_trans trans,
4b8ac966 1599 rocker_cmd_cb_t prepare, void *prepare_priv,
c4f20321 1600 rocker_cmd_cb_t process, void *process_priv)
4b8ac966
JP		 1601{
1602 struct rocker_desc_info *desc_info;
1603 struct rocker_wait *wait;
1604 unsigned long flags;
1605 int err;
1606
c4f20321 1607 wait = rocker_wait_create(rocker_port, trans);
4b8ac966
JP		 1608 if (!wait)
1609 return -ENOMEM;
4b8ac966
JP		 1610
1611 spin_lock_irqsave(&rocker->cmd_ring_lock, flags);
c4f20321 1612
4b8ac966
JP		 1613 desc_info = rocker_desc_head_get(&rocker->cmd_ring);
1614 if (!desc_info) {
1615 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1616 err = -EAGAIN;
1617 goto out;
1618 }
c4f20321 1619
4b8ac966
JP		 1620 err = prepare(rocker, rocker_port, desc_info, prepare_priv);
1621 if (err) {
1622 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1623 goto out;
1624 }
c4f20321 1625
4b8ac966 1626 rocker_desc_cookie_ptr_set(desc_info, wait);
4b8ac966 1627
c4f20321
SF		 1628 if (trans != SWITCHDEV_TRANS_PREPARE)
1629 rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);
4b8ac966 1630
c4f20321
SF		 1631 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1632
1633 if (trans != SWITCHDEV_TRANS_PREPARE)
1634 if (!rocker_wait_event_timeout(wait, HZ / 10))
1635 return -EIO;
4b8ac966
JP		 1636
1637 err = rocker_desc_err(desc_info);
1638 if (err)
1639 return err;
1640
1641 if (process)
1642 err = process(rocker, rocker_port, desc_info, process_priv);
1643
1644 rocker_desc_gen_clear(desc_info);
1645out:
c4f20321 1646 rocker_wait_destroy(rocker_port, trans, wait);
4b8ac966
JP		 1647 return err;
1648}
1649
1650static int
1651rocker_cmd_get_port_settings_prep(struct rocker *rocker,
1652 struct rocker_port *rocker_port,
1653 struct rocker_desc_info *desc_info,
1654 void *priv)
1655{
1656 struct rocker_tlv *cmd_info;
1657
1658 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1659 ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS))
1660 return -EMSGSIZE;
1661 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1662 if (!cmd_info)
1663 return -EMSGSIZE;
4a6bb6d3
SF		 1664 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1665 rocker_port->pport))
4b8ac966
JP		 1666 return -EMSGSIZE;
1667 rocker_tlv_nest_end(desc_info, cmd_info);
1668 return 0;
1669}
1670
1671static int
1672rocker_cmd_get_port_settings_ethtool_proc(struct rocker *rocker,
1673 struct rocker_port *rocker_port,
1674 struct rocker_desc_info *desc_info,
1675 void *priv)
1676{
1677 struct ethtool_cmd *ecmd = priv;
1678 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1679 struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1680 u32 speed;
1681 u8 duplex;
1682 u8 autoneg;
1683
1684 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1685 if (!attrs[ROCKER_TLV_CMD_INFO])
1686 return -EIO;
1687
1688 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1689 attrs[ROCKER_TLV_CMD_INFO]);
1690 if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] ||
1691 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] ||
1692 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG])
1693 return -EIO;
1694
1695 speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]);
1696 duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]);
1697 autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]);
1698
1699 ecmd->transceiver = XCVR_INTERNAL;
1700 ecmd->supported = SUPPORTED_TP;
1701 ecmd->phy_address = 0xff;
1702 ecmd->port = PORT_TP;
1703 ethtool_cmd_speed_set(ecmd, speed);
1704 ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF;
1705 ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
1706
1707 return 0;
1708}
1709
1710static int
1711rocker_cmd_get_port_settings_macaddr_proc(struct rocker *rocker,
1712 struct rocker_port *rocker_port,
1713 struct rocker_desc_info *desc_info,
1714 void *priv)
1715{
1716 unsigned char *macaddr = priv;
1717 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1718 struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1719 struct rocker_tlv *attr;
1720
1721 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1722 if (!attrs[ROCKER_TLV_CMD_INFO])
1723 return -EIO;
1724
1725 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1726 attrs[ROCKER_TLV_CMD_INFO]);
1727 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR];
1728 if (!attr)
1729 return -EIO;
1730
1731 if (rocker_tlv_len(attr) != ETH_ALEN)
1732 return -EINVAL;
1733
1734 ether_addr_copy(macaddr, rocker_tlv_data(attr));
1735 return 0;
1736}
1737
db19170b
DA		 1738struct port_name {
1739 char *buf;
1740 size_t len;
1741};
1742
1743static int
1744rocker_cmd_get_port_settings_phys_name_proc(struct rocker *rocker,
1745 struct rocker_port *rocker_port,
1746 struct rocker_desc_info *desc_info,
1747 void *priv)
1748{
1749 struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1750 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1751 struct port_name *name = priv;
1752 struct rocker_tlv *attr;
1753 size_t i, j, len;
1754 char *str;
1755
1756 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1757 if (!attrs[ROCKER_TLV_CMD_INFO])
1758 return -EIO;
1759
1760 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1761 attrs[ROCKER_TLV_CMD_INFO]);
1762 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME];
1763 if (!attr)
1764 return -EIO;
1765
1766 len = min_t(size_t, rocker_tlv_len(attr), name->len);
1767 str = rocker_tlv_data(attr);
1768
1769 /* make sure name only contains alphanumeric characters */
1770 for (i = j = 0; i < len; ++i) {
1771 if (isalnum(str[i])) {
1772 name->buf[j] = str[i];
1773 j++;
1774 }
1775 }
1776
1777 if (j == 0)
1778 return -EIO;
1779
1780 name->buf[j] = '\0';
1781
1782 return 0;
1783}
1784
4b8ac966
JP		 1785static int
1786rocker_cmd_set_port_settings_ethtool_prep(struct rocker *rocker,
1787 struct rocker_port *rocker_port,
1788 struct rocker_desc_info *desc_info,
1789 void *priv)
1790{
1791 struct ethtool_cmd *ecmd = priv;
1792 struct rocker_tlv *cmd_info;
1793
1794 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1795 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1796 return -EMSGSIZE;
1797 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1798 if (!cmd_info)
1799 return -EMSGSIZE;
4a6bb6d3
SF		 1800 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1801 rocker_port->pport))
4b8ac966
JP		 1802 return -EMSGSIZE;
1803 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED,
1804 ethtool_cmd_speed(ecmd)))
1805 return -EMSGSIZE;
1806 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,
1807 ecmd->duplex))
1808 return -EMSGSIZE;
1809 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG,
1810 ecmd->autoneg))
1811 return -EMSGSIZE;
1812 rocker_tlv_nest_end(desc_info, cmd_info);
1813 return 0;
1814}
1815
1816static int
1817rocker_cmd_set_port_settings_macaddr_prep(struct rocker *rocker,
1818 struct rocker_port *rocker_port,
1819 struct rocker_desc_info *desc_info,
1820 void *priv)
1821{
1822 unsigned char *macaddr = priv;
1823 struct rocker_tlv *cmd_info;
1824
1825 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1826 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1827 return -EMSGSIZE;
1828 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1829 if (!cmd_info)
1830 return -EMSGSIZE;
4a6bb6d3
SF		 1831 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1832 rocker_port->pport))
4b8ac966
JP		 1833 return -EMSGSIZE;
1834 if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR,
1835 ETH_ALEN, macaddr))
1836 return -EMSGSIZE;
1837 rocker_tlv_nest_end(desc_info, cmd_info);
1838 return 0;
1839}
1840
5111f80c
SF		 1841static int
1842rocker_cmd_set_port_learning_prep(struct rocker *rocker,
1843 struct rocker_port *rocker_port,
1844 struct rocker_desc_info *desc_info,
1845 void *priv)
1846{
1847 struct rocker_tlv *cmd_info;
1848
1849 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1850 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1851 return -EMSGSIZE;
1852 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1853 if (!cmd_info)
1854 return -EMSGSIZE;
4a6bb6d3
SF		 1855 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1856 rocker_port->pport))
5111f80c
SF		 1857 return -EMSGSIZE;
1858 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING,
1859 !!(rocker_port->brport_flags & BR_LEARNING)))
1860 return -EMSGSIZE;
1861 rocker_tlv_nest_end(desc_info, cmd_info);
1862 return 0;
1863}
1864
4b8ac966
JP		 1865static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
1866 struct ethtool_cmd *ecmd)
1867{
1868 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 1869 SWITCHDEV_TRANS_NONE,
4b8ac966
JP		 1870 rocker_cmd_get_port_settings_prep, NULL,
1871 rocker_cmd_get_port_settings_ethtool_proc,
c4f20321 1872 ecmd);
4b8ac966
JP		 1873}
1874
1875static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
1876 unsigned char *macaddr)
1877{
1878 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 1879 SWITCHDEV_TRANS_NONE,
4b8ac966
JP		 1880 rocker_cmd_get_port_settings_prep, NULL,
1881 rocker_cmd_get_port_settings_macaddr_proc,
c4f20321 1882 macaddr);
4b8ac966
JP		 1883}
1884
1885static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
1886 struct ethtool_cmd *ecmd)
1887{
1888 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 1889 SWITCHDEV_TRANS_NONE,
4b8ac966 1890 rocker_cmd_set_port_settings_ethtool_prep,
c4f20321 1891 ecmd, NULL, NULL);
4b8ac966
JP		 1892}
1893
1894static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
1895 unsigned char *macaddr)
1896{
1897 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 1898 SWITCHDEV_TRANS_NONE,
4b8ac966 1899 rocker_cmd_set_port_settings_macaddr_prep,
c4f20321 1900 macaddr, NULL, NULL);
4b8ac966
JP		 1901}
1902
c4f20321
SF		 1903static int rocker_port_set_learning(struct rocker_port *rocker_port,
1904 enum switchdev_trans trans)
5111f80c 1905{
c4f20321 1906 return rocker_cmd_exec(rocker_port->rocker, rocker_port, trans,
5111f80c 1907 rocker_cmd_set_port_learning_prep,
c4f20321 1908 NULL, NULL, NULL);
5111f80c
SF		 1909}
1910
9f6bbf7c
SF		 1911static int rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info,
1912 struct rocker_flow_tbl_entry *entry)
1913{
4a6bb6d3
SF		 1914 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1915 entry->key.ig_port.in_pport))
9f6bbf7c 1916 return -EMSGSIZE;
4a6bb6d3
SF		 1917 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1918 entry->key.ig_port.in_pport_mask))
9f6bbf7c
SF		 1919 return -EMSGSIZE;
1920 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1921 entry->key.ig_port.goto_tbl))
1922 return -EMSGSIZE;
1923
1924 return 0;
1925}
1926
1927static int rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info,
1928 struct rocker_flow_tbl_entry *entry)
1929{
4a6bb6d3
SF		 1930 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1931 entry->key.vlan.in_pport))
9f6bbf7c 1932 return -EMSGSIZE;
9b03c71f
JP		 1933 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1934 entry->key.vlan.vlan_id))
9f6bbf7c 1935 return -EMSGSIZE;
9b03c71f
JP		 1936 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1937 entry->key.vlan.vlan_id_mask))
9f6bbf7c
SF		 1938 return -EMSGSIZE;
1939 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1940 entry->key.vlan.goto_tbl))
1941 return -EMSGSIZE;
1942 if (entry->key.vlan.untagged &&
9b03c71f
JP		 1943 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID,
1944 entry->key.vlan.new_vlan_id))
9f6bbf7c
SF		 1945 return -EMSGSIZE;
1946
1947 return 0;
1948}
1949
1950static int rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info,
1951 struct rocker_flow_tbl_entry *entry)
1952{
4a6bb6d3
SF		 1953 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1954 entry->key.term_mac.in_pport))
9f6bbf7c 1955 return -EMSGSIZE;
4a6bb6d3
SF		 1956 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1957 entry->key.term_mac.in_pport_mask))
9f6bbf7c 1958 return -EMSGSIZE;
9b03c71f
JP		 1959 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1960 entry->key.term_mac.eth_type))
9f6bbf7c
SF		 1961 return -EMSGSIZE;
1962 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1963 ETH_ALEN, entry->key.term_mac.eth_dst))
1964 return -EMSGSIZE;
1965 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1966 ETH_ALEN, entry->key.term_mac.eth_dst_mask))
1967 return -EMSGSIZE;
9b03c71f
JP		 1968 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1969 entry->key.term_mac.vlan_id))
9f6bbf7c 1970 return -EMSGSIZE;
9b03c71f
JP		 1971 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1972 entry->key.term_mac.vlan_id_mask))
9f6bbf7c
SF		 1973 return -EMSGSIZE;
1974 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1975 entry->key.term_mac.goto_tbl))
1976 return -EMSGSIZE;
1977 if (entry->key.term_mac.copy_to_cpu &&
1978 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
1979 entry->key.term_mac.copy_to_cpu))
1980 return -EMSGSIZE;
1981
1982 return 0;
1983}
1984
1985static int
1986rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info,
1987 struct rocker_flow_tbl_entry *entry)
1988{
9b03c71f
JP		 1989 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1990 entry->key.ucast_routing.eth_type))
9f6bbf7c 1991 return -EMSGSIZE;
9b03c71f
JP		 1992 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP,
1993 entry->key.ucast_routing.dst4))
9f6bbf7c 1994 return -EMSGSIZE;
9b03c71f
JP		 1995 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK,
1996 entry->key.ucast_routing.dst4_mask))
9f6bbf7c
SF		 1997 return -EMSGSIZE;
1998 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1999 entry->key.ucast_routing.goto_tbl))
2000 return -EMSGSIZE;
2001 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2002 entry->key.ucast_routing.group_id))
2003 return -EMSGSIZE;
2004
2005 return 0;
2006}
2007
2008static int rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info,
2009 struct rocker_flow_tbl_entry *entry)
2010{
2011 if (entry->key.bridge.has_eth_dst &&
2012 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2013 ETH_ALEN, entry->key.bridge.eth_dst))
2014 return -EMSGSIZE;
2015 if (entry->key.bridge.has_eth_dst_mask &&
2016 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
2017 ETH_ALEN, entry->key.bridge.eth_dst_mask))
2018 return -EMSGSIZE;
2019 if (entry->key.bridge.vlan_id &&
9b03c71f
JP		 2020 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2021 entry->key.bridge.vlan_id))
9f6bbf7c
SF		 2022 return -EMSGSIZE;
2023 if (entry->key.bridge.tunnel_id &&
2024 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID,
2025 entry->key.bridge.tunnel_id))
2026 return -EMSGSIZE;
2027 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
2028 entry->key.bridge.goto_tbl))
2029 return -EMSGSIZE;
2030 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2031 entry->key.bridge.group_id))
2032 return -EMSGSIZE;
2033 if (entry->key.bridge.copy_to_cpu &&
2034 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
2035 entry->key.bridge.copy_to_cpu))
2036 return -EMSGSIZE;
2037
2038 return 0;
2039}
2040
2041static int rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info,
2042 struct rocker_flow_tbl_entry *entry)
2043{
4a6bb6d3
SF		 2044 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
2045 entry->key.acl.in_pport))
9f6bbf7c 2046 return -EMSGSIZE;
4a6bb6d3
SF		 2047 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
2048 entry->key.acl.in_pport_mask))
9f6bbf7c
SF		 2049 return -EMSGSIZE;
2050 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2051 ETH_ALEN, entry->key.acl.eth_src))
2052 return -EMSGSIZE;
2053 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK,
2054 ETH_ALEN, entry->key.acl.eth_src_mask))
2055 return -EMSGSIZE;
2056 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2057 ETH_ALEN, entry->key.acl.eth_dst))
2058 return -EMSGSIZE;
2059 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
2060 ETH_ALEN, entry->key.acl.eth_dst_mask))
2061 return -EMSGSIZE;
9b03c71f
JP		 2062 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
2063 entry->key.acl.eth_type))
9f6bbf7c 2064 return -EMSGSIZE;
9b03c71f
JP		 2065 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2066 entry->key.acl.vlan_id))
9f6bbf7c 2067 return -EMSGSIZE;
9b03c71f
JP		 2068 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
2069 entry->key.acl.vlan_id_mask))
9f6bbf7c
SF		 2070 return -EMSGSIZE;
2071
2072 switch (ntohs(entry->key.acl.eth_type)) {
2073 case ETH_P_IP:
2074 case ETH_P_IPV6:
2075 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO,
2076 entry->key.acl.ip_proto))
2077 return -EMSGSIZE;
2078 if (rocker_tlv_put_u8(desc_info,
2079 ROCKER_TLV_OF_DPA_IP_PROTO_MASK,
2080 entry->key.acl.ip_proto_mask))
2081 return -EMSGSIZE;
2082 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP,
2083 entry->key.acl.ip_tos & 0x3f))
2084 return -EMSGSIZE;
2085 if (rocker_tlv_put_u8(desc_info,
2086 ROCKER_TLV_OF_DPA_IP_DSCP_MASK,
2087 entry->key.acl.ip_tos_mask & 0x3f))
2088 return -EMSGSIZE;
2089 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN,
2090 (entry->key.acl.ip_tos & 0xc0) >> 6))
2091 return -EMSGSIZE;
2092 if (rocker_tlv_put_u8(desc_info,
2093 ROCKER_TLV_OF_DPA_IP_ECN_MASK,
2094 (entry->key.acl.ip_tos_mask & 0xc0) >> 6))
2095 return -EMSGSIZE;
2096 break;
2097 }
2098
2099 if (entry->key.acl.group_id != ROCKER_GROUP_NONE &&
2100 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2101 entry->key.acl.group_id))
2102 return -EMSGSIZE;
2103
2104 return 0;
2105}
2106
2107static int rocker_cmd_flow_tbl_add(struct rocker *rocker,
2108 struct rocker_port *rocker_port,
2109 struct rocker_desc_info *desc_info,
2110 void *priv)
2111{
2112 struct rocker_flow_tbl_entry *entry = priv;
2113 struct rocker_tlv *cmd_info;
2114 int err = 0;
2115
c1beeef7 2116 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
9f6bbf7c
SF		 2117 return -EMSGSIZE;
2118 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2119 if (!cmd_info)
2120 return -EMSGSIZE;
2121 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID,
2122 entry->key.tbl_id))
2123 return -EMSGSIZE;
2124 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY,
2125 entry->key.priority))
2126 return -EMSGSIZE;
2127 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0))
2128 return -EMSGSIZE;
2129 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2130 entry->cookie))
2131 return -EMSGSIZE;
2132
2133 switch (entry->key.tbl_id) {
2134 case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT:
2135 err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry);
2136 break;
2137 case ROCKER_OF_DPA_TABLE_ID_VLAN:
2138 err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry);
2139 break;
2140 case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC:
2141 err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry);
2142 break;
2143 case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING:
2144 err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry);
2145 break;
2146 case ROCKER_OF_DPA_TABLE_ID_BRIDGING:
2147 err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry);
2148 break;
2149 case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY:
2150 err = rocker_cmd_flow_tbl_add_acl(desc_info, entry);
2151 break;
2152 default:
2153 err = -ENOTSUPP;
2154 break;
2155 }
2156
2157 if (err)
2158 return err;
2159
2160 rocker_tlv_nest_end(desc_info, cmd_info);
2161
2162 return 0;
2163}
2164
2165static int rocker_cmd_flow_tbl_del(struct rocker *rocker,
2166 struct rocker_port *rocker_port,
2167 struct rocker_desc_info *desc_info,
2168 void *priv)
2169{
2170 const struct rocker_flow_tbl_entry *entry = priv;
2171 struct rocker_tlv *cmd_info;
2172
c1beeef7 2173 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
9f6bbf7c
SF		 2174 return -EMSGSIZE;
2175 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2176 if (!cmd_info)
2177 return -EMSGSIZE;
2178 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2179 entry->cookie))
2180 return -EMSGSIZE;
2181 rocker_tlv_nest_end(desc_info, cmd_info);
2182
2183 return 0;
2184}
2185
2186static int
2187rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info,
2188 struct rocker_group_tbl_entry *entry)
2189{
4a6bb6d3 2190 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT,
9f6bbf7c
SF		 2191 ROCKER_GROUP_PORT_GET(entry->group_id)))
2192 return -EMSGSIZE;
2193 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN,
2194 entry->l2_interface.pop_vlan))
2195 return -EMSGSIZE;
2196
2197 return 0;
2198}
2199
2200static int
2201rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info,
2202 struct rocker_group_tbl_entry *entry)
2203{
2204 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2205 entry->l2_rewrite.group_id))
2206 return -EMSGSIZE;
2207 if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) &&
2208 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2209 ETH_ALEN, entry->l2_rewrite.eth_src))
2210 return -EMSGSIZE;
2211 if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) &&
2212 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2213 ETH_ALEN, entry->l2_rewrite.eth_dst))
2214 return -EMSGSIZE;
2215 if (entry->l2_rewrite.vlan_id &&
9b03c71f
JP		 2216 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2217 entry->l2_rewrite.vlan_id))
9f6bbf7c
SF		 2218 return -EMSGSIZE;
2219
2220 return 0;
2221}
2222
2223static int
2224rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info,
2225 struct rocker_group_tbl_entry *entry)
2226{
2227 int i;
2228 struct rocker_tlv *group_ids;
2229
2230 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT,
2231 entry->group_count))
2232 return -EMSGSIZE;
2233
2234 group_ids = rocker_tlv_nest_start(desc_info,
2235 ROCKER_TLV_OF_DPA_GROUP_IDS);
2236 if (!group_ids)
2237 return -EMSGSIZE;
2238
2239 for (i = 0; i < entry->group_count; i++)
2240 /* Note TLV array is 1-based */
2241 if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i]))
2242 return -EMSGSIZE;
2243
2244 rocker_tlv_nest_end(desc_info, group_ids);
2245
2246 return 0;
2247}
2248
2249static int
2250rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info,
2251 struct rocker_group_tbl_entry *entry)
2252{
2253 if (!is_zero_ether_addr(entry->l3_unicast.eth_src) &&
2254 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2255 ETH_ALEN, entry->l3_unicast.eth_src))
2256 return -EMSGSIZE;
2257 if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) &&
2258 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2259 ETH_ALEN, entry->l3_unicast.eth_dst))
2260 return -EMSGSIZE;
2261 if (entry->l3_unicast.vlan_id &&
9b03c71f
JP		 2262 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2263 entry->l3_unicast.vlan_id))
9f6bbf7c
SF		 2264 return -EMSGSIZE;
2265 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK,
2266 entry->l3_unicast.ttl_check))
2267 return -EMSGSIZE;
2268 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2269 entry->l3_unicast.group_id))
2270 return -EMSGSIZE;
2271
2272 return 0;
2273}
2274
2275static int rocker_cmd_group_tbl_add(struct rocker *rocker,
2276 struct rocker_port *rocker_port,
2277 struct rocker_desc_info *desc_info,
2278 void *priv)
2279{
2280 struct rocker_group_tbl_entry *entry = priv;
2281 struct rocker_tlv *cmd_info;
2282 int err = 0;
2283
2284 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2285 return -EMSGSIZE;
2286 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2287 if (!cmd_info)
2288 return -EMSGSIZE;
2289
2290 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2291 entry->group_id))
2292 return -EMSGSIZE;
2293
2294 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2295 case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE:
2296 err = rocker_cmd_group_tbl_add_l2_interface(desc_info, entry);
2297 break;
2298 case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE:
2299 err = rocker_cmd_group_tbl_add_l2_rewrite(desc_info, entry);
2300 break;
2301 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2302 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
2303 err = rocker_cmd_group_tbl_add_group_ids(desc_info, entry);
2304 break;
2305 case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST:
2306 err = rocker_cmd_group_tbl_add_l3_unicast(desc_info, entry);
2307 break;
2308 default:
2309 err = -ENOTSUPP;
2310 break;
2311 }
2312
2313 if (err)
2314 return err;
2315
2316 rocker_tlv_nest_end(desc_info, cmd_info);
2317
2318 return 0;
2319}
2320
2321static int rocker_cmd_group_tbl_del(struct rocker *rocker,
2322 struct rocker_port *rocker_port,
2323 struct rocker_desc_info *desc_info,
2324 void *priv)
2325{
2326 const struct rocker_group_tbl_entry *entry = priv;
2327 struct rocker_tlv *cmd_info;
2328
2329 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2330 return -EMSGSIZE;
2331 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2332 if (!cmd_info)
2333 return -EMSGSIZE;
2334 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2335 entry->group_id))
2336 return -EMSGSIZE;
2337 rocker_tlv_nest_end(desc_info, cmd_info);
2338
2339 return 0;
2340}
2341
c1beeef7
SF		 2342/***************************************************
2343 * Flow, group, FDB, internal VLAN and neigh tables
2344 ***************************************************/
9f6bbf7c
SF		 2345
2346static int rocker_init_tbls(struct rocker *rocker)
2347{
2348 hash_init(rocker->flow_tbl);
2349 spin_lock_init(&rocker->flow_tbl_lock);
2350
2351 hash_init(rocker->group_tbl);
2352 spin_lock_init(&rocker->group_tbl_lock);
2353
2354 hash_init(rocker->fdb_tbl);
2355 spin_lock_init(&rocker->fdb_tbl_lock);
2356
2357 hash_init(rocker->internal_vlan_tbl);
2358 spin_lock_init(&rocker->internal_vlan_tbl_lock);
2359
c1beeef7
SF		 2360 hash_init(rocker->neigh_tbl);
2361 spin_lock_init(&rocker->neigh_tbl_lock);
2362
9f6bbf7c
SF		 2363 return 0;
2364}
2365
2366static void rocker_free_tbls(struct rocker *rocker)
2367{
2368 unsigned long flags;
2369 struct rocker_flow_tbl_entry *flow_entry;
2370 struct rocker_group_tbl_entry *group_entry;
2371 struct rocker_fdb_tbl_entry *fdb_entry;
2372 struct rocker_internal_vlan_tbl_entry *internal_vlan_entry;
c1beeef7 2373 struct rocker_neigh_tbl_entry *neigh_entry;
9f6bbf7c
SF		 2374 struct hlist_node *tmp;
2375 int bkt;
2376
2377 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2378 hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry)
2379 hash_del(&flow_entry->entry);
2380 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2381
2382 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2383 hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry)
2384 hash_del(&group_entry->entry);
2385 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2386
2387 spin_lock_irqsave(&rocker->fdb_tbl_lock, flags);
2388 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry)
2389 hash_del(&fdb_entry->entry);
2390 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags);
2391
2392 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags);
2393 hash_for_each_safe(rocker->internal_vlan_tbl, bkt,
2394 tmp, internal_vlan_entry, entry)
2395 hash_del(&internal_vlan_entry->entry);
2396 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags);
c1beeef7
SF		 2397
2398 spin_lock_irqsave(&rocker->neigh_tbl_lock, flags);
2399 hash_for_each_safe(rocker->neigh_tbl, bkt, tmp, neigh_entry, entry)
2400 hash_del(&neigh_entry->entry);
2401 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, flags);
9f6bbf7c
SF		 2402}
2403
2404static struct rocker_flow_tbl_entry *
2405rocker_flow_tbl_find(struct rocker *rocker, struct rocker_flow_tbl_entry *match)
2406{
2407 struct rocker_flow_tbl_entry *found;
c1beeef7 2408 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
9f6bbf7c
SF		 2409
2410 hash_for_each_possible(rocker->flow_tbl, found,
2411 entry, match->key_crc32) {
c1beeef7 2412 if (memcmp(&found->key, &match->key, key_len) == 0)
9f6bbf7c
SF		 2413 return found;
2414 }
2415
2416 return NULL;
2417}
2418
2419static int rocker_flow_tbl_add(struct rocker_port *rocker_port,
c4f20321
SF		 2420 enum switchdev_trans trans,
2421 struct rocker_flow_tbl_entry *match)
9f6bbf7c
SF		 2422{
2423 struct rocker *rocker = rocker_port->rocker;
2424 struct rocker_flow_tbl_entry *found;
c1beeef7 2425 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
9f6bbf7c 2426 unsigned long flags;
9f6bbf7c 2427
c1beeef7 2428 match->key_crc32 = crc32(~0, &match->key, key_len);
9f6bbf7c
SF		 2429
2430 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2431
2432 found = rocker_flow_tbl_find(rocker, match);
2433
2434 if (found) {
c1beeef7 2435 match->cookie = found->cookie;
c4f20321
SF		 2436 if (trans != SWITCHDEV_TRANS_PREPARE)
2437 hash_del(&found->entry);
2438 rocker_port_kfree(rocker_port, trans, found);
c1beeef7
SF		 2439 found = match;
2440 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD;
9f6bbf7c
SF		 2441 } else {
2442 found = match;
2443 found->cookie = rocker->flow_tbl_next_cookie++;
c1beeef7 2444 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD;
9f6bbf7c
SF		 2445 }
2446
c4f20321
SF		 2447 if (trans != SWITCHDEV_TRANS_PREPARE)
2448 hash_add(rocker->flow_tbl, &found->entry, found->key_crc32);
9f6bbf7c
SF		 2449
2450 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2451
c4f20321 2452 return rocker_cmd_exec(rocker, rocker_port, trans,
c1beeef7 2453 rocker_cmd_flow_tbl_add,
c4f20321 2454 found, NULL, NULL);
9f6bbf7c
SF		 2455}
2456
2457static int rocker_flow_tbl_del(struct rocker_port *rocker_port,
c4f20321
SF		 2458 enum switchdev_trans trans,
2459 struct rocker_flow_tbl_entry *match)
9f6bbf7c
SF		 2460{
2461 struct rocker *rocker = rocker_port->rocker;
2462 struct rocker_flow_tbl_entry *found;
c1beeef7 2463 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
9f6bbf7c 2464 unsigned long flags;
9f6bbf7c
SF		 2465 int err = 0;
2466
c1beeef7 2467 match->key_crc32 = crc32(~0, &match->key, key_len);
9f6bbf7c
SF		 2468
2469 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2470
2471 found = rocker_flow_tbl_find(rocker, match);
2472
2473 if (found) {
c4f20321
SF		 2474 if (trans != SWITCHDEV_TRANS_PREPARE)
2475 hash_del(&found->entry);
c1beeef7 2476 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL;
9f6bbf7c
SF		 2477 }
2478
2479 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2480
c4f20321 2481 rocker_port_kfree(rocker_port, trans, match);
9f6bbf7c 2482
c1beeef7 2483 if (found) {
c4f20321 2484 err = rocker_cmd_exec(rocker, rocker_port, trans,
9f6bbf7c 2485 rocker_cmd_flow_tbl_del,
c4f20321
SF		 2486 found, NULL, NULL);
2487 rocker_port_kfree(rocker_port, trans, found);
9f6bbf7c
SF		 2488 }
2489
2490 return err;
2491}
2492
9f6bbf7c 2493static int rocker_flow_tbl_do(struct rocker_port *rocker_port,
c4f20321
SF		 2494 enum switchdev_trans trans, int flags,
2495 struct rocker_flow_tbl_entry *entry)
9f6bbf7c 2496{
9f6bbf7c 2497 if (flags & ROCKER_OP_FLAG_REMOVE)
c4f20321 2498 return rocker_flow_tbl_del(rocker_port, trans, entry);
9f6bbf7c 2499 else
c4f20321 2500 return rocker_flow_tbl_add(rocker_port, trans, entry);
9f6bbf7c
SF		 2501}
2502
2503static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port,
c4f20321
SF		 2504 enum switchdev_trans trans, int flags,
2505 u32 in_pport, u32 in_pport_mask,
9f6bbf7c
SF		 2506 enum rocker_of_dpa_table_id goto_tbl)
2507{
2508 struct rocker_flow_tbl_entry *entry;
2509
c4f20321 2510 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2511 if (!entry)
2512 return -ENOMEM;
2513
2514 entry->key.priority = ROCKER_PRIORITY_IG_PORT;
2515 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT;
4a6bb6d3
SF		 2516 entry->key.ig_port.in_pport = in_pport;
2517 entry->key.ig_port.in_pport_mask = in_pport_mask;
9f6bbf7c
SF		 2518 entry->key.ig_port.goto_tbl = goto_tbl;
2519
c4f20321 2520 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2521}
2522
2523static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port,
c4f20321
SF		 2524 enum switchdev_trans trans, int flags,
2525 u32 in_pport, __be16 vlan_id,
2526 __be16 vlan_id_mask,
9f6bbf7c
SF		 2527 enum rocker_of_dpa_table_id goto_tbl,
2528 bool untagged, __be16 new_vlan_id)
2529{
2530 struct rocker_flow_tbl_entry *entry;
2531
c4f20321 2532 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2533 if (!entry)
2534 return -ENOMEM;
2535
2536 entry->key.priority = ROCKER_PRIORITY_VLAN;
2537 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN;
4a6bb6d3 2538 entry->key.vlan.in_pport = in_pport;
9f6bbf7c
SF		 2539 entry->key.vlan.vlan_id = vlan_id;
2540 entry->key.vlan.vlan_id_mask = vlan_id_mask;
2541 entry->key.vlan.goto_tbl = goto_tbl;
2542
2543 entry->key.vlan.untagged = untagged;
2544 entry->key.vlan.new_vlan_id = new_vlan_id;
2545
c4f20321 2546 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2547}
2548
2549static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port,
c4f20321 2550 enum switchdev_trans trans,
4a6bb6d3 2551 u32 in_pport, u32 in_pport_mask,
9f6bbf7c
SF		 2552 __be16 eth_type, const u8 *eth_dst,
2553 const u8 *eth_dst_mask, __be16 vlan_id,
2554 __be16 vlan_id_mask, bool copy_to_cpu,
2555 int flags)
2556{
2557 struct rocker_flow_tbl_entry *entry;
2558
c4f20321 2559 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2560 if (!entry)
2561 return -ENOMEM;
2562
2563 if (is_multicast_ether_addr(eth_dst)) {
2564 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST;
2565 entry->key.term_mac.goto_tbl =
2566 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING;
2567 } else {
2568 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST;
2569 entry->key.term_mac.goto_tbl =
2570 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2571 }
2572
2573 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
4a6bb6d3
SF		 2574 entry->key.term_mac.in_pport = in_pport;
2575 entry->key.term_mac.in_pport_mask = in_pport_mask;
9f6bbf7c
SF		 2576 entry->key.term_mac.eth_type = eth_type;
2577 ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst);
2578 ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask);
2579 entry->key.term_mac.vlan_id = vlan_id;
2580 entry->key.term_mac.vlan_id_mask = vlan_id_mask;
2581 entry->key.term_mac.copy_to_cpu = copy_to_cpu;
2582
c4f20321 2583 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2584}
2585
2586static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port,
c4f20321 2587 enum switchdev_trans trans, int flags,
9f6bbf7c
SF		 2588 const u8 *eth_dst, const u8 *eth_dst_mask,
2589 __be16 vlan_id, u32 tunnel_id,
2590 enum rocker_of_dpa_table_id goto_tbl,
2591 u32 group_id, bool copy_to_cpu)
2592{
2593 struct rocker_flow_tbl_entry *entry;
2594 u32 priority;
2595 bool vlan_bridging = !!vlan_id;
2596 bool dflt = !eth_dst || (eth_dst && eth_dst_mask);
2597 bool wild = false;
2598
c4f20321 2599 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2600 if (!entry)
2601 return -ENOMEM;
2602
2603 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING;
2604
2605 if (eth_dst) {
2606 entry->key.bridge.has_eth_dst = 1;
2607 ether_addr_copy(entry->key.bridge.eth_dst, eth_dst);
2608 }
2609 if (eth_dst_mask) {
2610 entry->key.bridge.has_eth_dst_mask = 1;
2611 ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask);
629161f6 2612 if (!ether_addr_equal(eth_dst_mask, ff_mac))
9f6bbf7c
SF		 2613 wild = true;
2614 }
2615
2616 priority = ROCKER_PRIORITY_UNKNOWN;
51ace887 2617 if (vlan_bridging && dflt && wild)
9f6bbf7c 2618 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD;
51ace887 2619 else if (vlan_bridging && dflt && !wild)
9f6bbf7c 2620 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT;
51ace887 2621 else if (vlan_bridging && !dflt)
9f6bbf7c 2622 priority = ROCKER_PRIORITY_BRIDGING_VLAN;
51ace887 2623 else if (!vlan_bridging && dflt && wild)
9f6bbf7c 2624 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD;
51ace887 2625 else if (!vlan_bridging && dflt && !wild)
9f6bbf7c 2626 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT;
51ace887 2627 else if (!vlan_bridging && !dflt)
9f6bbf7c
SF		 2628 priority = ROCKER_PRIORITY_BRIDGING_TENANT;
2629
2630 entry->key.priority = priority;
2631 entry->key.bridge.vlan_id = vlan_id;
2632 entry->key.bridge.tunnel_id = tunnel_id;
2633 entry->key.bridge.goto_tbl = goto_tbl;
2634 entry->key.bridge.group_id = group_id;
2635 entry->key.bridge.copy_to_cpu = copy_to_cpu;
2636
c4f20321 2637 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2638}
2639
c1beeef7 2640static int rocker_flow_tbl_ucast4_routing(struct rocker_port *rocker_port,
c4f20321 2641 enum switchdev_trans trans,
c1beeef7
SF		 2642 __be16 eth_type, __be32 dst,
2643 __be32 dst_mask, u32 priority,
2644 enum rocker_of_dpa_table_id goto_tbl,
2645 u32 group_id, int flags)
2646{
2647 struct rocker_flow_tbl_entry *entry;
2648
c4f20321 2649 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
c1beeef7
SF		 2650 if (!entry)
2651 return -ENOMEM;
2652
2653 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2654 entry->key.priority = priority;
2655 entry->key.ucast_routing.eth_type = eth_type;
2656 entry->key.ucast_routing.dst4 = dst;
2657 entry->key.ucast_routing.dst4_mask = dst_mask;
2658 entry->key.ucast_routing.goto_tbl = goto_tbl;
2659 entry->key.ucast_routing.group_id = group_id;
2660 entry->key_len = offsetof(struct rocker_flow_tbl_key,
2661 ucast_routing.group_id);
2662
c4f20321 2663 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
c1beeef7
SF		 2664}
2665
9f6bbf7c 2666static int rocker_flow_tbl_acl(struct rocker_port *rocker_port,
c4f20321
SF		 2667 enum switchdev_trans trans, int flags,
2668 u32 in_pport, u32 in_pport_mask,
9f6bbf7c
SF		 2669 const u8 *eth_src, const u8 *eth_src_mask,
2670 const u8 *eth_dst, const u8 *eth_dst_mask,
c4f20321
SF		 2671 __be16 eth_type, __be16 vlan_id,
2672 __be16 vlan_id_mask, u8 ip_proto,
2673 u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask,
9f6bbf7c
SF		 2674 u32 group_id)
2675{
2676 u32 priority;
2677 struct rocker_flow_tbl_entry *entry;
2678
c4f20321 2679 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2680 if (!entry)
2681 return -ENOMEM;
2682
2683 priority = ROCKER_PRIORITY_ACL_NORMAL;
2684 if (eth_dst && eth_dst_mask) {
629161f6 2685 if (ether_addr_equal(eth_dst_mask, mcast_mac))
9f6bbf7c
SF		 2686 priority = ROCKER_PRIORITY_ACL_DFLT;
2687 else if (is_link_local_ether_addr(eth_dst))
2688 priority = ROCKER_PRIORITY_ACL_CTRL;
2689 }
2690
2691 entry->key.priority = priority;
2692 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
4a6bb6d3
SF		 2693 entry->key.acl.in_pport = in_pport;
2694 entry->key.acl.in_pport_mask = in_pport_mask;
9f6bbf7c
SF		 2695
2696 if (eth_src)
2697 ether_addr_copy(entry->key.acl.eth_src, eth_src);
2698 if (eth_src_mask)
2699 ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask);
2700 if (eth_dst)
2701 ether_addr_copy(entry->key.acl.eth_dst, eth_dst);
2702 if (eth_dst_mask)
2703 ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask);
2704
2705 entry->key.acl.eth_type = eth_type;
2706 entry->key.acl.vlan_id = vlan_id;
2707 entry->key.acl.vlan_id_mask = vlan_id_mask;
2708 entry->key.acl.ip_proto = ip_proto;
2709 entry->key.acl.ip_proto_mask = ip_proto_mask;
2710 entry->key.acl.ip_tos = ip_tos;
2711 entry->key.acl.ip_tos_mask = ip_tos_mask;
2712 entry->key.acl.group_id = group_id;
2713
c4f20321 2714 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2715}
2716
2717static struct rocker_group_tbl_entry *
2718rocker_group_tbl_find(struct rocker *rocker,
2719 struct rocker_group_tbl_entry *match)
2720{
2721 struct rocker_group_tbl_entry *found;
2722
2723 hash_for_each_possible(rocker->group_tbl, found,
2724 entry, match->group_id) {
2725 if (found->group_id == match->group_id)
2726 return found;
2727 }
2728
2729 return NULL;
2730}
2731
c4f20321
SF		 2732static void rocker_group_tbl_entry_free(struct rocker_port *rocker_port,
2733 enum switchdev_trans trans,
2734 struct rocker_group_tbl_entry *entry)
9f6bbf7c
SF		 2735{
2736 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2737 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2738 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
c4f20321 2739 rocker_port_kfree(rocker_port, trans, entry->group_ids);
9f6bbf7c
SF		 2740 break;
2741 default:
2742 break;
2743 }
c4f20321 2744 rocker_port_kfree(rocker_port, trans, entry);
9f6bbf7c
SF		 2745}
2746
2747static int rocker_group_tbl_add(struct rocker_port *rocker_port,
c4f20321
SF		 2748 enum switchdev_trans trans,
2749 struct rocker_group_tbl_entry *match)
9f6bbf7c
SF		 2750{
2751 struct rocker *rocker = rocker_port->rocker;
2752 struct rocker_group_tbl_entry *found;
2753 unsigned long flags;
9f6bbf7c
SF		 2754
2755 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2756
2757 found = rocker_group_tbl_find(rocker, match);
2758
2759 if (found) {
c4f20321
SF		 2760 if (trans != SWITCHDEV_TRANS_PREPARE)
2761 hash_del(&found->entry);
2762 rocker_group_tbl_entry_free(rocker_port, trans, found);
9f6bbf7c
SF		 2763 found = match;
2764 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD;
2765 } else {
2766 found = match;
2767 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD;
2768 }
2769
c4f20321
SF		 2770 if (trans != SWITCHDEV_TRANS_PREPARE)
2771 hash_add(rocker->group_tbl, &found->entry, found->group_id);
9f6bbf7c
SF		 2772
2773 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2774
c4f20321 2775 return rocker_cmd_exec(rocker, rocker_port, trans,
c1beeef7 2776 rocker_cmd_group_tbl_add,
c4f20321 2777 found, NULL, NULL);
9f6bbf7c
SF		 2778}
2779
2780static int rocker_group_tbl_del(struct rocker_port *rocker_port,
c4f20321
SF		 2781 enum switchdev_trans trans,
2782 struct rocker_group_tbl_entry *match)
9f6bbf7c
SF		 2783{
2784 struct rocker *rocker = rocker_port->rocker;
2785 struct rocker_group_tbl_entry *found;
2786 unsigned long flags;
2787 int err = 0;
2788
2789 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2790
2791 found = rocker_group_tbl_find(rocker, match);
2792
2793 if (found) {
c4f20321
SF		 2794 if (trans != SWITCHDEV_TRANS_PREPARE)
2795 hash_del(&found->entry);
9f6bbf7c
SF		 2796 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL;
2797 }
2798
2799 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2800
c4f20321 2801 rocker_group_tbl_entry_free(rocker_port, trans, match);
9f6bbf7c
SF		 2802
2803 if (found) {
c4f20321 2804 err = rocker_cmd_exec(rocker, rocker_port, trans,
9f6bbf7c 2805 rocker_cmd_group_tbl_del,
c4f20321
SF		 2806 found, NULL, NULL);
2807 rocker_group_tbl_entry_free(rocker_port, trans, found);
9f6bbf7c
SF		 2808 }
2809
2810 return err;
2811}
2812
2813static int rocker_group_tbl_do(struct rocker_port *rocker_port,
c4f20321
SF		 2814 enum switchdev_trans trans, int flags,
2815 struct rocker_group_tbl_entry *entry)
9f6bbf7c 2816{
9f6bbf7c 2817 if (flags & ROCKER_OP_FLAG_REMOVE)
c4f20321 2818 return rocker_group_tbl_del(rocker_port, trans, entry);
9f6bbf7c 2819 else
c4f20321 2820 return rocker_group_tbl_add(rocker_port, trans, entry);
9f6bbf7c
SF		 2821}
2822
2823static int rocker_group_l2_interface(struct rocker_port *rocker_port,
c4f20321
SF		 2824 enum switchdev_trans trans, int flags,
2825 __be16 vlan_id, u32 out_pport,
2826 int pop_vlan)
9f6bbf7c
SF		 2827{
2828 struct rocker_group_tbl_entry *entry;
2829
c4f20321 2830 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2831 if (!entry)
2832 return -ENOMEM;
2833
4a6bb6d3 2834 entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
9f6bbf7c
SF		 2835 entry->l2_interface.pop_vlan = pop_vlan;
2836
c4f20321 2837 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2838}
2839
2840static int rocker_group_l2_fan_out(struct rocker_port *rocker_port,
c4f20321 2841 enum switchdev_trans trans,
9f6bbf7c
SF		 2842 int flags, u8 group_count,
2843 u32 *group_ids, u32 group_id)
2844{
2845 struct rocker_group_tbl_entry *entry;
2846
c4f20321 2847 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2848 if (!entry)
2849 return -ENOMEM;
2850
2851 entry->group_id = group_id;
2852 entry->group_count = group_count;
2853
c4f20321
SF		 2854 entry->group_ids = rocker_port_kcalloc(rocker_port, trans, group_count,
2855 sizeof(u32));
9f6bbf7c 2856 if (!entry->group_ids) {
c4f20321 2857 rocker_port_kfree(rocker_port, trans, entry);
9f6bbf7c
SF		 2858 return -ENOMEM;
2859 }
2860 memcpy(entry->group_ids, group_ids, group_count * sizeof(u32));
2861
c4f20321 2862 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2863}
2864
2865static int rocker_group_l2_flood(struct rocker_port *rocker_port,
c4f20321
SF		 2866 enum switchdev_trans trans, int flags,
2867 __be16 vlan_id, u8 group_count,
2868 u32 *group_ids, u32 group_id)
9f6bbf7c 2869{
c4f20321 2870 return rocker_group_l2_fan_out(rocker_port, trans, flags,
9f6bbf7c
SF		 2871 group_count, group_ids,
2872 group_id);
2873}
2874
c1beeef7 2875static int rocker_group_l3_unicast(struct rocker_port *rocker_port,
c4f20321
SF		 2876 enum switchdev_trans trans, int flags,
2877 u32 index, u8 *src_mac, u8 *dst_mac,
2878 __be16 vlan_id, bool ttl_check, u32 pport)
c1beeef7
SF		 2879{
2880 struct rocker_group_tbl_entry *entry;
2881
c4f20321 2882 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
c1beeef7
SF		 2883 if (!entry)
2884 return -ENOMEM;
2885
2886 entry->group_id = ROCKER_GROUP_L3_UNICAST(index);
2887 if (src_mac)
2888 ether_addr_copy(entry->l3_unicast.eth_src, src_mac);
2889 if (dst_mac)
2890 ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac);
2891 entry->l3_unicast.vlan_id = vlan_id;
2892 entry->l3_unicast.ttl_check = ttl_check;
2893 entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport);
2894
c4f20321 2895 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
c1beeef7
SF		 2896}
2897
2898static struct rocker_neigh_tbl_entry *
2899 rocker_neigh_tbl_find(struct rocker *rocker, __be32 ip_addr)
2900{
2901 struct rocker_neigh_tbl_entry *found;
2902
0f43deba
SF		 2903 hash_for_each_possible(rocker->neigh_tbl, found,
2904 entry, be32_to_cpu(ip_addr))
c1beeef7
SF		 2905 if (found->ip_addr == ip_addr)
2906 return found;
2907
2908 return NULL;
2909}
2910
2911static void _rocker_neigh_add(struct rocker *rocker,
2912 struct rocker_neigh_tbl_entry *entry)
2913{
2914 entry->index = rocker->neigh_tbl_next_index++;
2915 entry->ref_count++;
0f43deba
SF		 2916 hash_add(rocker->neigh_tbl, &entry->entry,
2917 be32_to_cpu(entry->ip_addr));
c1beeef7
SF		 2918}
2919
c4f20321
SF		 2920static void _rocker_neigh_del(struct rocker_port *rocker_port,
2921 enum switchdev_trans trans,
c1beeef7
SF		 2922 struct rocker_neigh_tbl_entry *entry)
2923{
2924 if (--entry->ref_count == 0) {
2925 hash_del(&entry->entry);
c4f20321 2926 rocker_port_kfree(rocker_port, trans, entry);
c1beeef7
SF		 2927 }
2928}
2929
c4f20321 2930static void _rocker_neigh_update(struct rocker_neigh_tbl_entry *entry,
c1beeef7
SF		 2931 u8 *eth_dst, bool ttl_check)
2932{
2933 if (eth_dst) {
2934 ether_addr_copy(entry->eth_dst, eth_dst);
2935 entry->ttl_check = ttl_check;
2936 } else {
2937 entry->ref_count++;
2938 }
2939}
2940
2941static int rocker_port_ipv4_neigh(struct rocker_port *rocker_port,
c4f20321 2942 enum switchdev_trans trans,
c1beeef7
SF		 2943 int flags, __be32 ip_addr, u8 *eth_dst)
2944{
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 __be16 eth_type = htons(ETH_P_IP);
2950 enum rocker_of_dpa_table_id goto_tbl =
2951 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2952 u32 group_id;
2953 u32 priority = 0;
2954 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
2955 bool updating;
2956 bool removing;
2957 int err = 0;
2958
c4f20321 2959 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
c1beeef7
SF		 2960 if (!entry)
2961 return -ENOMEM;
2962
2963 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
2964
2965 found = rocker_neigh_tbl_find(rocker, ip_addr);
2966
2967 updating = found && adding;
2968 removing = found && !adding;
2969 adding = !found && adding;
2970
2971 if (adding) {
2972 entry->ip_addr = ip_addr;
2973 entry->dev = rocker_port->dev;
2974 ether_addr_copy(entry->eth_dst, eth_dst);
2975 entry->ttl_check = true;
2976 _rocker_neigh_add(rocker, entry);
2977 } else if (removing) {
2978 memcpy(entry, found, sizeof(*entry));
c4f20321 2979 _rocker_neigh_del(rocker_port, trans, found);
c1beeef7 2980 } else if (updating) {
c4f20321 2981 _rocker_neigh_update(found, eth_dst, true);
c1beeef7
SF		 2982 memcpy(entry, found, sizeof(*entry));
2983 } else {
2984 err = -ENOENT;
2985 }
2986
2987 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
2988
2989 if (err)
2990 goto err_out;
2991
2992 /* For each active neighbor, we have an L3 unicast group and
2993 * a /32 route to the neighbor, which uses the L3 unicast
2994 * group. The L3 unicast group can also be referred to by
2995 * other routes' nexthops.
2996 */
2997
c4f20321 2998 err = rocker_group_l3_unicast(rocker_port, trans, flags,
c1beeef7
SF		 2999 entry->index,
3000 rocker_port->dev->dev_addr,
3001 entry->eth_dst,
3002 rocker_port->internal_vlan_id,
3003 entry->ttl_check,
3004 rocker_port->pport);
3005 if (err) {
3006 netdev_err(rocker_port->dev,
3007 "Error (%d) L3 unicast group index %d\n",
3008 err, entry->index);
3009 goto err_out;
3010 }
3011
3012 if (adding || removing) {
3013 group_id = ROCKER_GROUP_L3_UNICAST(entry->index);
c4f20321 3014 err = rocker_flow_tbl_ucast4_routing(rocker_port, trans,
c1beeef7
SF		 3015 eth_type, ip_addr,
3016 inet_make_mask(32),
3017 priority, goto_tbl,
3018 group_id, flags);
3019
3020 if (err)
3021 netdev_err(rocker_port->dev,
3022 "Error (%d) /32 unicast route %pI4 group 0x%08x\n",
3023 err, &entry->ip_addr, group_id);
3024 }
3025
3026err_out:
3027 if (!adding)
c4f20321 3028 rocker_port_kfree(rocker_port, trans, entry);
c1beeef7
SF		 3029
3030 return err;
3031}
3032
3033static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port,
c4f20321 3034 enum switchdev_trans trans, __be32 ip_addr)
c1beeef7
SF		 3035{
3036 struct net_device *dev = rocker_port->dev;
0f43deba 3037 struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr);
c1beeef7
SF		 3038 int err = 0;
3039
3040 if (!n)
3041 n = neigh_create(&arp_tbl, &ip_addr, dev);
3042 if (!n)
3043 return -ENOMEM;
3044
3045 /* If the neigh is already resolved, then go ahead and
3046 * install the entry, otherwise start the ARP process to
3047 * resolve the neigh.
3048 */
3049
3050 if (n->nud_state & NUD_VALID)
c4f20321
SF		 3051 err = rocker_port_ipv4_neigh(rocker_port, trans, 0,
3052 ip_addr, n->ha);
c1beeef7
SF		 3053 else
3054 neigh_event_send(n, NULL);
3055
3056 return err;
3057}
3058
c4f20321
SF		 3059static int rocker_port_ipv4_nh(struct rocker_port *rocker_port,
3060 enum switchdev_trans trans, int flags,
c1beeef7
SF		 3061 __be32 ip_addr, u32 *index)
3062{
3063 struct rocker *rocker = rocker_port->rocker;
3064 struct rocker_neigh_tbl_entry *entry;
3065 struct rocker_neigh_tbl_entry *found;
3066 unsigned long lock_flags;
3067 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3068 bool updating;
3069 bool removing;
3070 bool resolved = true;
3071 int err = 0;
3072
c4f20321 3073 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
c1beeef7
SF		 3074 if (!entry)
3075 return -ENOMEM;
3076
3077 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
3078
3079 found = rocker_neigh_tbl_find(rocker, ip_addr);
3080 if (found)
3081 *index = found->index;
3082
3083 updating = found && adding;
3084 removing = found && !adding;
3085 adding = !found && adding;
3086
3087 if (adding) {
3088 entry->ip_addr = ip_addr;
3089 entry->dev = rocker_port->dev;
3090 _rocker_neigh_add(rocker, entry);
3091 *index = entry->index;
3092 resolved = false;
3093 } else if (removing) {
c4f20321 3094 _rocker_neigh_del(rocker_port, trans, found);
c1beeef7 3095 } else if (updating) {
c4f20321 3096 _rocker_neigh_update(found, NULL, false);
c1beeef7
SF		 3097 resolved = !is_zero_ether_addr(found->eth_dst);
3098 } else {
3099 err = -ENOENT;
3100 }
3101
3102 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
3103
3104 if (!adding)
c4f20321 3105 rocker_port_kfree(rocker_port, trans, entry);
c1beeef7
SF		 3106
3107 if (err)
3108 return err;
3109
3110 /* Resolved means neigh ip_addr is resolved to neigh mac. */
3111
3112 if (!resolved)
c4f20321 3113 err = rocker_port_ipv4_resolve(rocker_port, trans, ip_addr);
c1beeef7
SF		 3114
3115 return err;
3116}
3117
6c707945 3118static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port,
c4f20321 3119 enum switchdev_trans trans,
6c707945
SF		 3120 int flags, __be16 vlan_id)
3121{
3122 struct rocker_port *p;
3123 struct rocker *rocker = rocker_port->rocker;
3124 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
04f49faf 3125 u32 *group_ids;
6c707945 3126 u8 group_count = 0;
04f49faf 3127 int err = 0;
6c707945
SF		 3128 int i;
3129
c4f20321
SF		 3130 group_ids = rocker_port_kcalloc(rocker_port, trans, rocker->port_count,
3131 sizeof(u32));
04f49faf
SF		 3132 if (!group_ids)
3133 return -ENOMEM;
3134
6c707945
SF		 3135 /* Adjust the flood group for this VLAN. The flood group
3136 * references an L2 interface group for each port in this
3137 * VLAN.
3138 */
3139
3140 for (i = 0; i < rocker->port_count; i++) {
3141 p = rocker->ports[i];
3142 if (!rocker_port_is_bridged(p))
3143 continue;
3144 if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) {
3145 group_ids[group_count++] =
4a6bb6d3 3146 ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport);
6c707945
SF		 3147 }
3148 }
3149
3150 /* If there are no bridged ports in this VLAN, we're done */
3151 if (group_count == 0)
04f49faf 3152 goto no_ports_in_vlan;
6c707945 3153
c4f20321
SF		 3154 err = rocker_group_l2_flood(rocker_port, trans, flags, vlan_id,
3155 group_count, group_ids, group_id);
6c707945
SF		 3156 if (err)
3157 netdev_err(rocker_port->dev,
3158 "Error (%d) port VLAN l2 flood group\n", err);
3159
04f49faf 3160no_ports_in_vlan:
c4f20321 3161 rocker_port_kfree(rocker_port, trans, group_ids);
6c707945
SF		 3162 return err;
3163}
3164
3165static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port,
c4f20321
SF		 3166 enum switchdev_trans trans, int flags,
3167 __be16 vlan_id, bool pop_vlan)
6c707945
SF		 3168{
3169 struct rocker *rocker = rocker_port->rocker;
3170 struct rocker_port *p;
3171 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
4a6bb6d3 3172 u32 out_pport;
6c707945
SF		 3173 int ref = 0;
3174 int err;
3175 int i;
3176
3177 /* An L2 interface group for this port in this VLAN, but
3178 * only when port STP state is LEARNING|FORWARDING.
3179 */
3180
3181 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3182 rocker_port->stp_state == BR_STATE_FORWARDING) {
4a6bb6d3 3183 out_pport = rocker_port->pport;
c4f20321
SF		 3184 err = rocker_group_l2_interface(rocker_port, trans, flags,
3185 vlan_id, out_pport, pop_vlan);
6c707945
SF		 3186 if (err) {
3187 netdev_err(rocker_port->dev,
4a6bb6d3
SF		 3188 "Error (%d) port VLAN l2 group for pport %d\n",
3189 err, out_pport);
6c707945
SF		 3190 return err;
3191 }
3192 }
3193
3194 /* An L2 interface group for this VLAN to CPU port.
3195 * Add when first port joins this VLAN and destroy when
3196 * last port leaves this VLAN.
3197 */
3198
3199 for (i = 0; i < rocker->port_count; i++) {
3200 p = rocker->ports[i];
3201 if (test_bit(ntohs(vlan_id), p->vlan_bitmap))
3202 ref++;
3203 }
3204
3205 if ((!adding || ref != 1) && (adding || ref != 0))
3206 return 0;
3207
4a6bb6d3 3208 out_pport = 0;
c4f20321
SF		 3209 err = rocker_group_l2_interface(rocker_port, trans, flags,
3210 vlan_id, out_pport, pop_vlan);
6c707945
SF		 3211 if (err) {
3212 netdev_err(rocker_port->dev,
3213 "Error (%d) port VLAN l2 group for CPU port\n", err);
3214 return err;
3215 }
3216
3217 return 0;
3218}
3219
9f6bbf7c
SF		 3220static struct rocker_ctrl {
3221 const u8 *eth_dst;
3222 const u8 *eth_dst_mask;
11e6c65a 3223 __be16 eth_type;
9f6bbf7c
SF		 3224 bool acl;
3225 bool bridge;
3226 bool term;
3227 bool copy_to_cpu;
3228} rocker_ctrls[] = {
3229 [ROCKER_CTRL_LINK_LOCAL_MCAST] = {
3230 /* pass link local multicast pkts up to CPU for filtering */
3231 .eth_dst = ll_mac,
3232 .eth_dst_mask = ll_mask,
3233 .acl = true,
3234 },
3235 [ROCKER_CTRL_LOCAL_ARP] = {
3236 /* pass local ARP pkts up to CPU */
3237 .eth_dst = zero_mac,
3238 .eth_dst_mask = zero_mac,
3239 .eth_type = htons(ETH_P_ARP),
3240 .acl = true,
3241 },
3242 [ROCKER_CTRL_IPV4_MCAST] = {
3243 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
3244 .eth_dst = ipv4_mcast,
3245 .eth_dst_mask = ipv4_mask,
3246 .eth_type = htons(ETH_P_IP),
3247 .term = true,
3248 .copy_to_cpu = true,
3249 },
3250 [ROCKER_CTRL_IPV6_MCAST] = {
3251 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
3252 .eth_dst = ipv6_mcast,
3253 .eth_dst_mask = ipv6_mask,
3254 .eth_type = htons(ETH_P_IPV6),
3255 .term = true,
3256 .copy_to_cpu = true,
3257 },
3258 [ROCKER_CTRL_DFLT_BRIDGING] = {
3259 /* flood any pkts on vlan */
3260 .bridge = true,
3261 .copy_to_cpu = true,
3262 },
3263};
3264
3265static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port,
c4f20321
SF		 3266 enum switchdev_trans trans, int flags,
3267 struct rocker_ctrl *ctrl, __be16 vlan_id)
9f6bbf7c 3268{
4a6bb6d3
SF		 3269 u32 in_pport = rocker_port->pport;
3270 u32 in_pport_mask = 0xffffffff;
3271 u32 out_pport = 0;
9f6bbf7c
SF		 3272 u8 *eth_src = NULL;
3273 u8 *eth_src_mask = NULL;
3274 __be16 vlan_id_mask = htons(0xffff);
3275 u8 ip_proto = 0;
3276 u8 ip_proto_mask = 0;
3277 u8 ip_tos = 0;
3278 u8 ip_tos_mask = 0;
4a6bb6d3 3279 u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
9f6bbf7c
SF		 3280 int err;
3281
c4f20321 3282 err = rocker_flow_tbl_acl(rocker_port, trans, flags,
4a6bb6d3 3283 in_pport, in_pport_mask,
9f6bbf7c
SF		 3284 eth_src, eth_src_mask,
3285 ctrl->eth_dst, ctrl->eth_dst_mask,
3286 ctrl->eth_type,
3287 vlan_id, vlan_id_mask,
3288 ip_proto, ip_proto_mask,
3289 ip_tos, ip_tos_mask,
3290 group_id);
3291
3292 if (err)
3293 netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err);
3294
3295 return err;
3296}
3297
6c707945 3298static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port,
c4f20321
SF		 3299 enum switchdev_trans trans, int flags,
3300 struct rocker_ctrl *ctrl,
6c707945
SF		 3301 __be16 vlan_id)
3302{
3303 enum rocker_of_dpa_table_id goto_tbl =
3304 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3305 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
3306 u32 tunnel_id = 0;
3307 int err;
3308
3309 if (!rocker_port_is_bridged(rocker_port))
3310 return 0;
3311
c4f20321 3312 err = rocker_flow_tbl_bridge(rocker_port, trans, flags,
6c707945
SF		 3313 ctrl->eth_dst, ctrl->eth_dst_mask,
3314 vlan_id, tunnel_id,
3315 goto_tbl, group_id, ctrl->copy_to_cpu);
3316
3317 if (err)
3318 netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err);
3319
3320 return err;
3321}
3322
9f6bbf7c 3323static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port,
c4f20321
SF		 3324 enum switchdev_trans trans, int flags,
3325 struct rocker_ctrl *ctrl, __be16 vlan_id)
9f6bbf7c 3326{
4a6bb6d3 3327 u32 in_pport_mask = 0xffffffff;
9f6bbf7c
SF		 3328 __be16 vlan_id_mask = htons(0xffff);
3329 int err;
3330
3331 if (ntohs(vlan_id) == 0)
3332 vlan_id = rocker_port->internal_vlan_id;
3333
c4f20321 3334 err = rocker_flow_tbl_term_mac(rocker_port, trans,
4a6bb6d3 3335 rocker_port->pport, in_pport_mask,
9f6bbf7c
SF		 3336 ctrl->eth_type, ctrl->eth_dst,
3337 ctrl->eth_dst_mask, vlan_id,
3338 vlan_id_mask, ctrl->copy_to_cpu,
3339 flags);
3340
3341 if (err)
3342 netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err);
3343
3344 return err;
3345}
3346
c4f20321
SF		 3347static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port,
3348 enum switchdev_trans trans, int flags,
9f6bbf7c
SF		 3349 struct rocker_ctrl *ctrl, __be16 vlan_id)
3350{
3351 if (ctrl->acl)
c4f20321 3352 return rocker_port_ctrl_vlan_acl(rocker_port, trans, flags,
9f6bbf7c 3353 ctrl, vlan_id);
6c707945 3354 if (ctrl->bridge)
c4f20321 3355 return rocker_port_ctrl_vlan_bridge(rocker_port, trans, flags,
6c707945 3356 ctrl, vlan_id);
9f6bbf7c
SF		 3357
3358 if (ctrl->term)
c4f20321 3359 return rocker_port_ctrl_vlan_term(rocker_port, trans, flags,
9f6bbf7c
SF		 3360 ctrl, vlan_id);
3361
3362 return -EOPNOTSUPP;
3363}
3364
3365static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port,
c4f20321
SF		 3366 enum switchdev_trans trans, int flags,
3367 __be16 vlan_id)
9f6bbf7c
SF		 3368{
3369 int err = 0;
3370 int i;
3371
3372 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3373 if (rocker_port->ctrls[i]) {
c4f20321 3374 err = rocker_port_ctrl_vlan(rocker_port, trans, flags,
9f6bbf7c
SF		 3375 &rocker_ctrls[i], vlan_id);
3376 if (err)
3377 return err;
3378 }
3379 }
3380
3381 return err;
3382}
3383
c4f20321
SF		 3384static int rocker_port_ctrl(struct rocker_port *rocker_port,
3385 enum switchdev_trans trans, int flags,
9f6bbf7c
SF		 3386 struct rocker_ctrl *ctrl)
3387{
3388 u16 vid;
3389 int err = 0;
3390
3391 for (vid = 1; vid < VLAN_N_VID; vid++) {
3392 if (!test_bit(vid, rocker_port->vlan_bitmap))
3393 continue;
c4f20321 3394 err = rocker_port_ctrl_vlan(rocker_port, trans, flags,
9f6bbf7c
SF		 3395 ctrl, htons(vid));
3396 if (err)
3397 break;
3398 }
3399
3400 return err;
3401}
3402
c4f20321
SF		 3403static int rocker_port_vlan(struct rocker_port *rocker_port,
3404 enum switchdev_trans trans, int flags, u16 vid)
6c707945
SF		 3405{
3406 enum rocker_of_dpa_table_id goto_tbl =
3407 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
4a6bb6d3 3408 u32 in_pport = rocker_port->pport;
6c707945
SF		 3409 __be16 vlan_id = htons(vid);
3410 __be16 vlan_id_mask = htons(0xffff);
3411 __be16 internal_vlan_id;
3412 bool untagged;
3413 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3414 int err;
3415
3416 internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged);
3417
9228ad26
SF		 3418 if (adding && test_bit(ntohs(internal_vlan_id),
3419 rocker_port->vlan_bitmap))
6c707945 3420 return 0; /* already added */
9228ad26
SF		 3421 else if (!adding && !test_bit(ntohs(internal_vlan_id),
3422 rocker_port->vlan_bitmap))
6c707945
SF		 3423 return 0; /* already removed */
3424
9228ad26
SF		 3425 change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap);
3426
6c707945 3427 if (adding) {
c4f20321 3428 err = rocker_port_ctrl_vlan_add(rocker_port, trans, flags,
6c707945
SF		 3429 internal_vlan_id);
3430 if (err) {
3431 netdev_err(rocker_port->dev,
3432 "Error (%d) port ctrl vlan add\n", err);
9228ad26 3433 goto err_out;
6c707945
SF		 3434 }
3435 }
3436
c4f20321 3437 err = rocker_port_vlan_l2_groups(rocker_port, trans, flags,
6c707945
SF		 3438 internal_vlan_id, untagged);
3439 if (err) {
3440 netdev_err(rocker_port->dev,
3441 "Error (%d) port VLAN l2 groups\n", err);
9228ad26 3442 goto err_out;
6c707945
SF		 3443 }
3444
c4f20321 3445 err = rocker_port_vlan_flood_group(rocker_port, trans, flags,
6c707945
SF		 3446 internal_vlan_id);
3447 if (err) {
3448 netdev_err(rocker_port->dev,
3449 "Error (%d) port VLAN l2 flood group\n", err);
9228ad26 3450 goto err_out;
6c707945
SF		 3451 }
3452
c4f20321 3453 err = rocker_flow_tbl_vlan(rocker_port, trans, flags,
4a6bb6d3 3454 in_pport, vlan_id, vlan_id_mask,
6c707945
SF		 3455 goto_tbl, untagged, internal_vlan_id);
3456 if (err)
3457 netdev_err(rocker_port->dev,
3458 "Error (%d) port VLAN table\n", err);
3459
9228ad26
SF		 3460err_out:
3461 if (trans == SWITCHDEV_TRANS_PREPARE)
3462 change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap);
3463
6c707945
SF		 3464 return err;
3465}
3466
c4f20321
SF		 3467static int rocker_port_ig_tbl(struct rocker_port *rocker_port,
3468 enum switchdev_trans trans, int flags)
9f6bbf7c
SF		 3469{
3470 enum rocker_of_dpa_table_id goto_tbl;
4a6bb6d3
SF		 3471 u32 in_pport;
3472 u32 in_pport_mask;
9f6bbf7c
SF		 3473 int err;
3474
3475 /* Normal Ethernet Frames. Matches pkts from any local physical
3476 * ports. Goto VLAN tbl.
3477 */
3478
4a6bb6d3
SF		 3479 in_pport = 0;
3480 in_pport_mask = 0xffff0000;
9f6bbf7c
SF		 3481 goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
3482
c4f20321 3483 err = rocker_flow_tbl_ig_port(rocker_port, trans, flags,
4a6bb6d3 3484 in_pport, in_pport_mask,
9f6bbf7c
SF		 3485 goto_tbl);
3486 if (err)
3487 netdev_err(rocker_port->dev,
3488 "Error (%d) ingress port table entry\n", err);
3489
3490 return err;
3491}
3492
6c707945
SF		 3493struct rocker_fdb_learn_work {
3494 struct work_struct work;
c4f20321
SF		 3495 struct rocker_port *rocker_port;
3496 enum switchdev_trans trans;
6c707945
SF		 3497 int flags;
3498 u8 addr[ETH_ALEN];
3499 u16 vid;
3500};
3501
3502static void rocker_port_fdb_learn_work(struct work_struct *work)
3503{
3504 struct rocker_fdb_learn_work *lw =
3505 container_of(work, struct rocker_fdb_learn_work, work);
3506 bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE);
3507 bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED);
ebb9a03a 3508 struct switchdev_notifier_fdb_info info;
3aeb6617
JP		 3509
3510 info.addr = lw->addr;
3511 info.vid = lw->vid;
6c707945 3512
51ace887 3513 if (learned && removing)
ebb9a03a 3514 call_switchdev_notifiers(SWITCHDEV_FDB_DEL,
c4f20321 3515 lw->rocker_port->dev, &info.info);
51ace887 3516 else if (learned && !removing)
ebb9a03a 3517 call_switchdev_notifiers(SWITCHDEV_FDB_ADD,
c4f20321 3518 lw->rocker_port->dev, &info.info);
6c707945 3519
c4f20321 3520 rocker_port_kfree(lw->rocker_port, lw->trans, work);
6c707945
SF		 3521}
3522
3523static int rocker_port_fdb_learn(struct rocker_port *rocker_port,
c4f20321
SF		 3524 enum switchdev_trans trans, int flags,
3525 const u8 *addr, __be16 vlan_id)
6c707945
SF		 3526{
3527 struct rocker_fdb_learn_work *lw;
3528 enum rocker_of_dpa_table_id goto_tbl =
3529 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
4a6bb6d3 3530 u32 out_pport = rocker_port->pport;
6c707945
SF		 3531 u32 tunnel_id = 0;
3532 u32 group_id = ROCKER_GROUP_NONE;
5111f80c 3533 bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC);
6c707945
SF		 3534 bool copy_to_cpu = false;
3535 int err;
3536
3537 if (rocker_port_is_bridged(rocker_port))
4a6bb6d3 3538 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
6c707945
SF		 3539
3540 if (!(flags & ROCKER_OP_FLAG_REFRESH)) {
c4f20321
SF		 3541 err = rocker_flow_tbl_bridge(rocker_port, trans, flags, addr,
3542 NULL, vlan_id, tunnel_id, goto_tbl,
6c707945
SF		 3543 group_id, copy_to_cpu);
3544 if (err)
3545 return err;
3546 }
3547
5111f80c
SF		 3548 if (!syncing)
3549 return 0;
3550
6c707945
SF		 3551 if (!rocker_port_is_bridged(rocker_port))
3552 return 0;
3553
c4f20321 3554 lw = rocker_port_kzalloc(rocker_port, trans, sizeof(*lw));
6c707945
SF		 3555 if (!lw)
3556 return -ENOMEM;
3557
3558 INIT_WORK(&lw->work, rocker_port_fdb_learn_work);
3559
c4f20321
SF		 3560 lw->rocker_port = rocker_port;
3561 lw->trans = trans;
6c707945
SF		 3562 lw->flags = flags;
3563 ether_addr_copy(lw->addr, addr);
3564 lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id);
3565
c4f20321
SF		 3566 if (trans == SWITCHDEV_TRANS_PREPARE)
3567 rocker_port_kfree(rocker_port, trans, lw);
3568 else
3569 schedule_work(&lw->work);
6c707945
SF		 3570
3571 return 0;
3572}
3573
3574static struct rocker_fdb_tbl_entry *
3575rocker_fdb_tbl_find(struct rocker *rocker, struct rocker_fdb_tbl_entry *match)
3576{
3577 struct rocker_fdb_tbl_entry *found;
3578
3579 hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32)
3580 if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
3581 return found;
3582
3583 return NULL;
3584}
3585
3586static int rocker_port_fdb(struct rocker_port *rocker_port,
c4f20321 3587 enum switchdev_trans trans,
6c707945
SF		 3588 const unsigned char *addr,
3589 __be16 vlan_id, int flags)
3590{
3591 struct rocker *rocker = rocker_port->rocker;
3592 struct rocker_fdb_tbl_entry *fdb;
3593 struct rocker_fdb_tbl_entry *found;
3594 bool removing = (flags & ROCKER_OP_FLAG_REMOVE);
3595 unsigned long lock_flags;
3596
c4f20321 3597 fdb = rocker_port_kzalloc(rocker_port, trans, sizeof(*fdb));
6c707945
SF		 3598 if (!fdb)
3599 return -ENOMEM;
3600
3601 fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED);
4a6bb6d3 3602 fdb->key.pport = rocker_port->pport;
6c707945
SF		 3603 ether_addr_copy(fdb->key.addr, addr);
3604 fdb->key.vlan_id = vlan_id;
3605 fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key));
3606
3607 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3608
3609 found = rocker_fdb_tbl_find(rocker, fdb);
3610
3611 if (removing && found) {
c4f20321 3612 rocker_port_kfree(rocker_port, trans, fdb);
6c707945
SF		 3613 hash_del(&found->entry);
3614 } else if (!removing && !found) {
3615 hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32);
3616 }
3617
3618 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3619
3620 /* Check if adding and already exists, or removing and can't find */
3621 if (!found != !removing) {
c4f20321 3622 rocker_port_kfree(rocker_port, trans, fdb);
6c707945
SF		 3623 if (!found && removing)
3624 return 0;
3625 /* Refreshing existing to update aging timers */
3626 flags |= ROCKER_OP_FLAG_REFRESH;
3627 }
3628
c4f20321 3629 return rocker_port_fdb_learn(rocker_port, trans, flags, addr, vlan_id);
6c707945
SF		 3630}
3631
c4f20321
SF		 3632static int rocker_port_fdb_flush(struct rocker_port *rocker_port,
3633 enum switchdev_trans trans)
6c707945
SF		 3634{
3635 struct rocker *rocker = rocker_port->rocker;
3636 struct rocker_fdb_tbl_entry *found;
3637 unsigned long lock_flags;
c4f20321 3638 int flags = ROCKER_OP_FLAG_REMOVE;
6c707945
SF		 3639 struct hlist_node *tmp;
3640 int bkt;
3641 int err = 0;
3642
3643 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3644 rocker_port->stp_state == BR_STATE_FORWARDING)
3645 return 0;
3646
3647 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3648
3649 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
4a6bb6d3 3650 if (found->key.pport != rocker_port->pport)
6c707945
SF		 3651 continue;
3652 if (!found->learned)
3653 continue;
c4f20321 3654 err = rocker_port_fdb_learn(rocker_port, trans, flags,
6c707945
SF		 3655 found->key.addr,
3656 found->key.vlan_id);
3657 if (err)
3658 goto err_out;
3659 hash_del(&found->entry);
3660 }
3661
3662err_out:
3663 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3664
3665 return err;
3666}
3667
9f6bbf7c 3668static int rocker_port_router_mac(struct rocker_port *rocker_port,
c4f20321
SF		 3669 enum switchdev_trans trans, int flags,
3670 __be16 vlan_id)
9f6bbf7c 3671{
4a6bb6d3 3672 u32 in_pport_mask = 0xffffffff;
9f6bbf7c
SF		 3673 __be16 eth_type;
3674 const u8 *dst_mac_mask = ff_mac;
3675 __be16 vlan_id_mask = htons(0xffff);
3676 bool copy_to_cpu = false;
3677 int err;
3678
3679 if (ntohs(vlan_id) == 0)
3680 vlan_id = rocker_port->internal_vlan_id;
3681
3682 eth_type = htons(ETH_P_IP);
c4f20321 3683 err = rocker_flow_tbl_term_mac(rocker_port, trans,
4a6bb6d3 3684 rocker_port->pport, in_pport_mask,
9f6bbf7c
SF		 3685 eth_type, rocker_port->dev->dev_addr,
3686 dst_mac_mask, vlan_id, vlan_id_mask,
3687 copy_to_cpu, flags);
3688 if (err)
3689 return err;
3690
3691 eth_type = htons(ETH_P_IPV6);
c4f20321 3692 err = rocker_flow_tbl_term_mac(rocker_port, trans,
4a6bb6d3 3693 rocker_port->pport, in_pport_mask,
9f6bbf7c
SF		 3694 eth_type, rocker_port->dev->dev_addr,
3695 dst_mac_mask, vlan_id, vlan_id_mask,
3696 copy_to_cpu, flags);
3697
3698 return err;
3699}
3700
c4f20321
SF		 3701static int rocker_port_fwding(struct rocker_port *rocker_port,
3702 enum switchdev_trans trans)
6c707945
SF		 3703{
3704 bool pop_vlan;
4a6bb6d3 3705 u32 out_pport;
6c707945
SF		 3706 __be16 vlan_id;
3707 u16 vid;
c4f20321 3708 int flags = 0;
6c707945
SF		 3709 int err;
3710
3711 /* Port will be forwarding-enabled if its STP state is LEARNING
3712 * or FORWARDING. Traffic from CPU can still egress, regardless of
3713 * port STP state. Use L2 interface group on port VLANs as a way
3714 * to toggle port forwarding: if forwarding is disabled, L2
3715 * interface group will not exist.
3716 */
3717
3718 if (rocker_port->stp_state != BR_STATE_LEARNING &&
3719 rocker_port->stp_state != BR_STATE_FORWARDING)
3720 flags |= ROCKER_OP_FLAG_REMOVE;
3721
4a6bb6d3 3722 out_pport = rocker_port->pport;
6c707945
SF		 3723 for (vid = 1; vid < VLAN_N_VID; vid++) {
3724 if (!test_bit(vid, rocker_port->vlan_bitmap))
3725 continue;
3726 vlan_id = htons(vid);
3727 pop_vlan = rocker_vlan_id_is_internal(vlan_id);
c4f20321
SF		 3728 err = rocker_group_l2_interface(rocker_port, trans, flags,
3729 vlan_id, out_pport, pop_vlan);
6c707945
SF		 3730 if (err) {
3731 netdev_err(rocker_port->dev,
4a6bb6d3
SF		 3732 "Error (%d) port VLAN l2 group for pport %d\n",
3733 err, out_pport);
6c707945
SF		 3734 return err;
3735 }
3736 }
3737
3738 return 0;
3739}
3740
c4f20321
SF		 3741static int rocker_port_stp_update(struct rocker_port *rocker_port,
3742 enum switchdev_trans trans, u8 state)
6c707945
SF		 3743{
3744 bool want[ROCKER_CTRL_MAX] = { 0, };
c4f20321
SF		 3745 bool prev_ctrls[ROCKER_CTRL_MAX];
3746 u8 prev_state;
6c707945
SF		 3747 int flags;
3748 int err;
3749 int i;
3750
c4f20321
SF		 3751 if (trans == SWITCHDEV_TRANS_PREPARE) {
3752 memcpy(prev_ctrls, rocker_port->ctrls, sizeof(prev_ctrls));
3753 prev_state = rocker_port->stp_state;
3754 }
3755
6c707945
SF		 3756 if (rocker_port->stp_state == state)
3757 return 0;
3758
3759 rocker_port->stp_state = state;
3760
3761 switch (state) {
3762 case BR_STATE_DISABLED:
3763 /* port is completely disabled */
3764 break;
3765 case BR_STATE_LISTENING:
3766 case BR_STATE_BLOCKING:
3767 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3768 break;
3769 case BR_STATE_LEARNING:
3770 case BR_STATE_FORWARDING:
3771 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3772 want[ROCKER_CTRL_IPV4_MCAST] = true;
3773 want[ROCKER_CTRL_IPV6_MCAST] = true;
3774 if (rocker_port_is_bridged(rocker_port))
3775 want[ROCKER_CTRL_DFLT_BRIDGING] = true;
3776 else
3777 want[ROCKER_CTRL_LOCAL_ARP] = true;
3778 break;
3779 }
3780
3781 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3782 if (want[i] != rocker_port->ctrls[i]) {
c4f20321
SF		 3783 flags = (want[i] ? 0 : ROCKER_OP_FLAG_REMOVE);
3784 err = rocker_port_ctrl(rocker_port, trans, flags,
6c707945
SF		 3785 &rocker_ctrls[i]);
3786 if (err)
c4f20321 3787 goto err_out;
6c707945
SF		 3788 rocker_port->ctrls[i] = want[i];
3789 }
3790 }
3791
c4f20321 3792 err = rocker_port_fdb_flush(rocker_port, trans);
6c707945 3793 if (err)
c4f20321 3794 goto err_out;
6c707945 3795
c4f20321
SF		 3796 err = rocker_port_fwding(rocker_port, trans);
3797
3798err_out:
3799 if (trans == SWITCHDEV_TRANS_PREPARE) {
3800 memcpy(rocker_port->ctrls, prev_ctrls, sizeof(prev_ctrls));
3801 rocker_port->stp_state = prev_state;
3802 }
3803
3804 return err;
6c707945
SF		 3805}
3806
c4f20321
SF		 3807static int rocker_port_fwd_enable(struct rocker_port *rocker_port,
3808 enum switchdev_trans trans)
e47172ab
SF		 3809{
3810 if (rocker_port_is_bridged(rocker_port))
3811 /* bridge STP will enable port */
3812 return 0;
3813
3814 /* port is not bridged, so simulate going to FORWARDING state */
c4f20321 3815 return rocker_port_stp_update(rocker_port, trans, BR_STATE_FORWARDING);
e47172ab
SF		 3816}
3817
c4f20321
SF		 3818static int rocker_port_fwd_disable(struct rocker_port *rocker_port,
3819 enum switchdev_trans trans)
e47172ab
SF		 3820{
3821 if (rocker_port_is_bridged(rocker_port))
3822 /* bridge STP will disable port */
3823 return 0;
3824
3825 /* port is not bridged, so simulate going to DISABLED state */
c4f20321 3826 return rocker_port_stp_update(rocker_port, trans, BR_STATE_DISABLED);
e47172ab
SF		 3827}
3828
9f6bbf7c
SF		 3829static struct rocker_internal_vlan_tbl_entry *
3830rocker_internal_vlan_tbl_find(struct rocker *rocker, int ifindex)
3831{
3832 struct rocker_internal_vlan_tbl_entry *found;
3833
3834 hash_for_each_possible(rocker->internal_vlan_tbl, found,
3835 entry, ifindex) {
3836 if (found->ifindex == ifindex)
3837 return found;
3838 }
3839
3840 return NULL;
3841}
3842
3843static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port,
c4f20321 3844 enum switchdev_trans trans,
9f6bbf7c
SF		 3845 int ifindex)
3846{
3847 struct rocker *rocker = rocker_port->rocker;
3848 struct rocker_internal_vlan_tbl_entry *entry;
3849 struct rocker_internal_vlan_tbl_entry *found;
3850 unsigned long lock_flags;
3851 int i;
3852
c4f20321 3853 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 3854 if (!entry)
3855 return 0;
3856
3857 entry->ifindex = ifindex;
3858
3859 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3860
3861 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3862 if (found) {
c4f20321 3863 rocker_port_kfree(rocker_port, trans, entry);
9f6bbf7c
SF		 3864 goto found;
3865 }
3866
3867 found = entry;
3868 hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex);
3869
3870 for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) {
3871 if (test_and_set_bit(i, rocker->internal_vlan_bitmap))
3872 continue;
3873 found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i);
3874 goto found;
3875 }
3876
3877 netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n");
3878
3879found:
3880 found->ref_count++;
3881 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3882
3883 return found->vlan_id;
3884}
3885
3886static void rocker_port_internal_vlan_id_put(struct rocker_port *rocker_port,
c4f20321 3887 enum switchdev_trans trans,
9f6bbf7c
SF		 3888 int ifindex)
3889{
3890 struct rocker *rocker = rocker_port->rocker;
3891 struct rocker_internal_vlan_tbl_entry *found;
3892 unsigned long lock_flags;
3893 unsigned long bit;
3894
3895 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3896
3897 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3898 if (!found) {
3899 netdev_err(rocker_port->dev,
3900 "ifindex (%d) not found in internal VLAN tbl\n",
3901 ifindex);
3902 goto not_found;
3903 }
3904
3905 if (--found->ref_count <= 0) {
3906 bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE;
3907 clear_bit(bit, rocker->internal_vlan_bitmap);
3908 hash_del(&found->entry);
c4f20321 3909 rocker_port_kfree(rocker_port, trans, found);
9f6bbf7c
SF		 3910 }
3911
3912not_found:
3913 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3914}
3915
c4f20321
SF		 3916static int rocker_port_fib_ipv4(struct rocker_port *rocker_port,
3917 enum switchdev_trans trans, __be32 dst,
c1beeef7
SF		 3918 int dst_len, struct fib_info *fi, u32 tb_id,
3919 int flags)
3920{
3921 struct fib_nh *nh;
3922 __be16 eth_type = htons(ETH_P_IP);
3923 __be32 dst_mask = inet_make_mask(dst_len);
3924 __be16 internal_vlan_id = rocker_port->internal_vlan_id;
3925 u32 priority = fi->fib_priority;
3926 enum rocker_of_dpa_table_id goto_tbl =
3927 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3928 u32 group_id;
3929 bool nh_on_port;
3930 bool has_gw;
3931 u32 index;
3932 int err;
3933
3934 /* XXX support ECMP */
3935
3936 nh = fi->fib_nh;
3937 nh_on_port = (fi->fib_dev == rocker_port->dev);
3938 has_gw = !!nh->nh_gw;
3939
3940 if (has_gw && nh_on_port) {
c4f20321 3941 err = rocker_port_ipv4_nh(rocker_port, trans, flags,
c1beeef7
SF		 3942 nh->nh_gw, &index);
3943 if (err)
3944 return err;
3945
3946 group_id = ROCKER_GROUP_L3_UNICAST(index);
3947 } else {
3948 /* Send to CPU for processing */
3949 group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0);
3950 }
3951
c4f20321 3952 err = rocker_flow_tbl_ucast4_routing(rocker_port, trans, eth_type, dst,
c1beeef7
SF		 3953 dst_mask, priority, goto_tbl,
3954 group_id, flags);
3955 if (err)
3956 netdev_err(rocker_port->dev, "Error (%d) IPv4 route %pI4\n",
3957 err, &dst);
3958
3959 return err;
3960}
3961
4b8ac966
JP		 3962/*****************
3963 * Net device ops
3964 *****************/
3965
3966static int rocker_port_open(struct net_device *dev)
3967{
3968 struct rocker_port *rocker_port = netdev_priv(dev);
3969 int err;
3970
3971 err = rocker_port_dma_rings_init(rocker_port);
3972 if (err)
3973 return err;
3974
3975 err = request_irq(rocker_msix_tx_vector(rocker_port),
3976 rocker_tx_irq_handler, 0,
3977 rocker_driver_name, rocker_port);
3978 if (err) {
3979 netdev_err(rocker_port->dev, "cannot assign tx irq\n");
3980 goto err_request_tx_irq;
3981 }
3982
3983 err = request_irq(rocker_msix_rx_vector(rocker_port),
3984 rocker_rx_irq_handler, 0,
3985 rocker_driver_name, rocker_port);
3986 if (err) {
3987 netdev_err(rocker_port->dev, "cannot assign rx irq\n");
3988 goto err_request_rx_irq;
3989 }
3990
c4f20321 3991 err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE);
6c707945 3992 if (err)
e47172ab 3993 goto err_fwd_enable;
6c707945 3994
4b8ac966
JP		 3995 napi_enable(&rocker_port->napi_tx);
3996 napi_enable(&rocker_port->napi_rx);
3997 rocker_port_set_enable(rocker_port, true);
3998 netif_start_queue(dev);
3999 return 0;
4000
e47172ab 4001err_fwd_enable:
6c707945 4002 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
4b8ac966
JP		 4003err_request_rx_irq:
4004 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
4005err_request_tx_irq:
4006 rocker_port_dma_rings_fini(rocker_port);
4007 return err;
4008}
4009
4010static int rocker_port_stop(struct net_device *dev)
4011{
4012 struct rocker_port *rocker_port = netdev_priv(dev);
4013
4014 netif_stop_queue(dev);
4015 rocker_port_set_enable(rocker_port, false);
4016 napi_disable(&rocker_port->napi_rx);
4017 napi_disable(&rocker_port->napi_tx);
c4f20321 4018 rocker_port_fwd_disable(rocker_port, SWITCHDEV_TRANS_NONE);
4b8ac966
JP		 4019 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
4020 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
4021 rocker_port_dma_rings_fini(rocker_port);
4022
4023 return 0;
4024}
4025
4026static void rocker_tx_desc_frags_unmap(struct rocker_port *rocker_port,
4027 struct rocker_desc_info *desc_info)
4028{
4029 struct rocker *rocker = rocker_port->rocker;
4030 struct pci_dev *pdev = rocker->pdev;
4031 struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1];
4032 struct rocker_tlv *attr;
4033 int rem;
4034
4035 rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info);
4036 if (!attrs[ROCKER_TLV_TX_FRAGS])
4037 return;
4038 rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) {
4039 struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1];
4040 dma_addr_t dma_handle;
4041 size_t len;
4042
4043 if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG)
4044 continue;
4045 rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX,
4046 attr);
4047 if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] ||
4048 !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN])
4049 continue;
4050 dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]);
4051 len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]);
4052 pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE);
4053 }
4054}
4055
4056static int rocker_tx_desc_frag_map_put(struct rocker_port *rocker_port,
4057 struct rocker_desc_info *desc_info,
4058 char *buf, size_t buf_len)
4059{
4060 struct rocker *rocker = rocker_port->rocker;
4061 struct pci_dev *pdev = rocker->pdev;
4062 dma_addr_t dma_handle;
4063 struct rocker_tlv *frag;
4064
4065 dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE);
4066 if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) {
4067 if (net_ratelimit())
4068 netdev_err(rocker_port->dev, "failed to dma map tx frag\n");
4069 return -EIO;
4070 }
4071 frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG);
4072 if (!frag)
4073 goto unmap_frag;
4074 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR,
4075 dma_handle))
4076 goto nest_cancel;
4077 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN,
4078 buf_len))
4079 goto nest_cancel;
4080 rocker_tlv_nest_end(desc_info, frag);
4081 return 0;
4082
4083nest_cancel:
4084 rocker_tlv_nest_cancel(desc_info, frag);
4085unmap_frag:
4086 pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE);
4087 return -EMSGSIZE;
4088}
4089
4090static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev)
4091{
4092 struct rocker_port *rocker_port = netdev_priv(dev);
4093 struct rocker *rocker = rocker_port->rocker;
4094 struct rocker_desc_info *desc_info;
4095 struct rocker_tlv *frags;
4096 int i;
4097 int err;
4098
4099 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
4100 if (unlikely(!desc_info)) {
4101 if (net_ratelimit())
4102 netdev_err(dev, "tx ring full when queue awake\n");
4103 return NETDEV_TX_BUSY;
4104 }
4105
4106 rocker_desc_cookie_ptr_set(desc_info, skb);
4107
4108 frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS);
4109 if (!frags)
4110 goto out;
4111 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
4112 skb->data, skb_headlen(skb));
4113 if (err)
4114 goto nest_cancel;
4115 if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX)
4116 goto nest_cancel;
4117
4118 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4119 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
4120
4121 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
4122 skb_frag_address(frag),
4123 skb_frag_size(frag));
4124 if (err)
4125 goto unmap_frags;
4126 }
4127 rocker_tlv_nest_end(desc_info, frags);
4128
4129 rocker_desc_gen_clear(desc_info);
4130 rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info);
4131
4132 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
4133 if (!desc_info)
4134 netif_stop_queue(dev);
4135
4136 return NETDEV_TX_OK;
4137
4138unmap_frags:
4139 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
4140nest_cancel:
4141 rocker_tlv_nest_cancel(desc_info, frags);
4142out:
4143 dev_kfree_skb(skb);
f2bbca51
DA		 4144 dev->stats.tx_dropped++;
4145
4b8ac966
JP		 4146 return NETDEV_TX_OK;
4147}
4148
4149static int rocker_port_set_mac_address(struct net_device *dev, void *p)
4150{
4151 struct sockaddr *addr = p;
4152 struct rocker_port *rocker_port = netdev_priv(dev);
4153 int err;
4154
4155 if (!is_valid_ether_addr(addr->sa_data))
4156 return -EADDRNOTAVAIL;
4157
4158 err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data);
4159 if (err)
4160 return err;
4161 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
4162 return 0;
4163}
4164
6c707945
SF		 4165static int rocker_port_vlan_rx_add_vid(struct net_device *dev,
4166 __be16 proto, u16 vid)
4167{
4168 struct rocker_port *rocker_port = netdev_priv(dev);
4169 int err;
4170
c4f20321 4171 err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, 0, vid);
6c707945
SF		 4172 if (err)
4173 return err;
4174
c4f20321
SF		 4175 return rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE,
4176 0, htons(vid));
6c707945
SF		 4177}
4178
4179static int rocker_port_vlan_rx_kill_vid(struct net_device *dev,
4180 __be16 proto, u16 vid)
4181{
4182 struct rocker_port *rocker_port = netdev_priv(dev);
4183 int err;
4184
c4f20321
SF		 4185 err = rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE,
4186 ROCKER_OP_FLAG_REMOVE, htons(vid));
6c707945
SF		 4187 if (err)
4188 return err;
4189
c4f20321
SF		 4190 return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
4191 ROCKER_OP_FLAG_REMOVE, vid);
6c707945
SF		 4192}
4193
4194static int rocker_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
4195 struct net_device *dev,
4196 const unsigned char *addr, u16 vid,
4197 u16 nlm_flags)
4198{
4199 struct rocker_port *rocker_port = netdev_priv(dev);
4200 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
4201 int flags = 0;
4202
4203 if (!rocker_port_is_bridged(rocker_port))
4204 return -EINVAL;
4205
c4f20321
SF		 4206 return rocker_port_fdb(rocker_port, SWITCHDEV_TRANS_NONE,
4207 addr, vlan_id, flags);
6c707945
SF		 4208}
4209
4210static int rocker_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
4211 struct net_device *dev,
4212 const unsigned char *addr, u16 vid)
4213{
4214 struct rocker_port *rocker_port = netdev_priv(dev);
4215 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
4216 int flags = ROCKER_OP_FLAG_REMOVE;
4217
4218 if (!rocker_port_is_bridged(rocker_port))
4219 return -EINVAL;
4220
c4f20321
SF		 4221 return rocker_port_fdb(rocker_port, SWITCHDEV_TRANS_NONE,
4222 addr, vlan_id, flags);
6c707945
SF		 4223}
4224
ce76ca68
JP		 4225static int rocker_fdb_fill_info(struct sk_buff *skb,
4226 struct rocker_port *rocker_port,
4227 const unsigned char *addr, u16 vid,
4228 u32 portid, u32 seq, int type,
4229 unsigned int flags)
4230{
4231 struct nlmsghdr *nlh;
4232 struct ndmsg *ndm;
4233
4234 nlh = nlmsg_put(skb, portid, seq, type, sizeof(*ndm), flags);
4235 if (!nlh)
4236 return -EMSGSIZE;
4237
4238 ndm = nlmsg_data(nlh);
4239 ndm->ndm_family = AF_BRIDGE;
4240 ndm->ndm_pad1 = 0;
4241 ndm->ndm_pad2 = 0;
4242 ndm->ndm_flags = NTF_SELF;
4243 ndm->ndm_type = 0;
4244 ndm->ndm_ifindex = rocker_port->dev->ifindex;
4245 ndm->ndm_state = NUD_REACHABLE;
4246
4247 if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr))
4248 goto nla_put_failure;
4249
4250 if (vid && nla_put_u16(skb, NDA_VLAN, vid))
4251 goto nla_put_failure;
4252
053c095a
JB		 4253 nlmsg_end(skb, nlh);
4254 return 0;
ce76ca68
JP		 4255
4256nla_put_failure:
4257 nlmsg_cancel(skb, nlh);
4258 return -EMSGSIZE;
4259}
4260
4261static int rocker_port_fdb_dump(struct sk_buff *skb,
4262 struct netlink_callback *cb,
4263 struct net_device *dev,
4264 struct net_device *filter_dev,
4265 int idx)
4266{
4267 struct rocker_port *rocker_port = netdev_priv(dev);
4268 struct rocker *rocker = rocker_port->rocker;
4269 struct rocker_fdb_tbl_entry *found;
4270 struct hlist_node *tmp;
4271 int bkt;
4272 unsigned long lock_flags;
4273 const unsigned char *addr;
4274 u16 vid;
4275 int err;
4276
4277 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
4278 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
4a6bb6d3 4279 if (found->key.pport != rocker_port->pport)
ce76ca68
JP		 4280 continue;
4281 if (idx < cb->args[0])
4282 goto skip;
4283 addr = found->key.addr;
4284 vid = rocker_port_vlan_to_vid(rocker_port, found->key.vlan_id);
4285 err = rocker_fdb_fill_info(skb, rocker_port, addr, vid,
4286 NETLINK_CB(cb->skb).portid,
4287 cb->nlh->nlmsg_seq,
4288 RTM_NEWNEIGH, NLM_F_MULTI);
4289 if (err < 0)
4290 break;
4291skip:
4292 ++idx;
4293 }
4294 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
4295 return idx;
4296}
4297
db19170b
DA		 4298static int rocker_port_get_phys_port_name(struct net_device *dev,
4299 char *buf, size_t len)
4300{
4301 struct rocker_port *rocker_port = netdev_priv(dev);
4302 struct port_name name = { .buf = buf, .len = len };
4303 int err;
4304
4305 err = rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 4306 SWITCHDEV_TRANS_NONE,
db19170b
DA		 4307 rocker_cmd_get_port_settings_prep, NULL,
4308 rocker_cmd_get_port_settings_phys_name_proc,
c4f20321 4309 &name);
db19170b
DA		 4310
4311 return err ? -EOPNOTSUPP : 0;
4312}
4313
98237d43
SF		 4314static const struct net_device_ops rocker_port_netdev_ops = {
4315 .ndo_open = rocker_port_open,
4316 .ndo_stop = rocker_port_stop,
4317 .ndo_start_xmit = rocker_port_xmit,
4318 .ndo_set_mac_address = rocker_port_set_mac_address,
4319 .ndo_vlan_rx_add_vid = rocker_port_vlan_rx_add_vid,
4320 .ndo_vlan_rx_kill_vid = rocker_port_vlan_rx_kill_vid,
4321 .ndo_fdb_add = rocker_port_fdb_add,
4322 .ndo_fdb_del = rocker_port_fdb_del,
4323 .ndo_fdb_dump = rocker_port_fdb_dump,
85fdb956 4324 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
fc8f40d8 4325 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
54ba5a0b 4326 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
db19170b 4327 .ndo_get_phys_port_name = rocker_port_get_phys_port_name,
98237d43
SF		 4328};
4329
4330/********************
4331 * swdev interface
4332 ********************/
4333
f8e20a9f
SF		 4334static int rocker_port_attr_get(struct net_device *dev,
4335 struct switchdev_attr *attr)
4b8ac966
JP		 4336{
4337 struct rocker_port *rocker_port = netdev_priv(dev);
4338 struct rocker *rocker = rocker_port->rocker;
4339
f8e20a9f
SF		 4340 switch (attr->id) {
4341 case SWITCHDEV_ATTR_PORT_PARENT_ID:
4342 attr->ppid.id_len = sizeof(rocker->hw.id);
4343 memcpy(&attr->ppid.id, &rocker->hw.id, attr->ppid.id_len);
4344 break;
6004c867
SF		 4345 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
4346 attr->brport_flags = rocker_port->brport_flags;
4347 break;
f8e20a9f
SF		 4348 default:
4349 return -EOPNOTSUPP;
4350 }
4351
4b8ac966
JP		 4352 return 0;
4353}
4354
c4f20321
SF		 4355static void rocker_port_trans_abort(struct rocker_port *rocker_port)
4356{
4357 struct list_head *mem, *tmp;
4358
4359 list_for_each_safe(mem, tmp, &rocker_port->trans_mem) {
4360 list_del(mem);
4361 kfree(mem);
4362 }
4363}
4364
6004c867
SF		 4365static int rocker_port_brport_flags_set(struct rocker_port *rocker_port,
4366 enum switchdev_trans trans,
4367 unsigned long brport_flags)
4368{
4369 unsigned long orig_flags;
4370 int err = 0;
4371
4372 orig_flags = rocker_port->brport_flags;
4373 rocker_port->brport_flags = brport_flags;
4374 if ((orig_flags ^ rocker_port->brport_flags) & BR_LEARNING)
4375 err = rocker_port_set_learning(rocker_port, trans);
4376
4377 if (trans == SWITCHDEV_TRANS_PREPARE)
4378 rocker_port->brport_flags = orig_flags;
4379
4380 return err;
4381}
4382
c4f20321
SF		 4383static int rocker_port_attr_set(struct net_device *dev,
4384 struct switchdev_attr *attr)
4385{
4386 struct rocker_port *rocker_port = netdev_priv(dev);
4387 int err = 0;
4388
4389 switch (attr->trans) {
4390 case SWITCHDEV_TRANS_PREPARE:
4391 BUG_ON(!list_empty(&rocker_port->trans_mem));
4392 break;
4393 case SWITCHDEV_TRANS_ABORT:
4394 rocker_port_trans_abort(rocker_port);
4395 return 0;
4396 default:
4397 break;
4398 }
4399
4400 switch (attr->id) {
35636062
SF		 4401 case SWITCHDEV_ATTR_PORT_STP_STATE:
4402 err = rocker_port_stp_update(rocker_port, attr->trans,
4403 attr->stp_state);
4404 break;
6004c867
SF		 4405 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
4406 err = rocker_port_brport_flags_set(rocker_port, attr->trans,
4407 attr->brport_flags);
4408 break;
c4f20321
SF		 4409 default:
4410 err = -EOPNOTSUPP;
4411 break;
4412 }
4413
4414 return err;
6c707945
SF		 4415}
4416
9228ad26
SF		 4417static int rocker_port_vlan_add(struct rocker_port *rocker_port,
4418 enum switchdev_trans trans, u16 vid, u16 flags)
4419{
4420 int err;
4421
4422 /* XXX deal with flags for PVID and untagged */
4423
4424 err = rocker_port_vlan(rocker_port, trans, 0, vid);
4425 if (err)
4426 return err;
4427
4428 return rocker_port_router_mac(rocker_port, trans, 0, htons(vid));
4429}
4430
4431static int rocker_port_vlans_add(struct rocker_port *rocker_port,
4432 enum switchdev_trans trans,
4433 struct switchdev_obj_vlan *vlan)
4434{
4435 u16 vid;
4436 int err;
4437
4438 for (vid = vlan->vid_start; vid <= vlan->vid_end; vid++) {
4439 err = rocker_port_vlan_add(rocker_port, trans,
4440 vid, vlan->flags);
4441 if (err)
4442 return err;
4443 }
4444
4445 return 0;
4446}
4447
4448static int rocker_port_obj_add(struct net_device *dev,
4449 struct switchdev_obj *obj)
4450{
4451 struct rocker_port *rocker_port = netdev_priv(dev);
4452 int err = 0;
4453
4454 switch (obj->trans) {
4455 case SWITCHDEV_TRANS_PREPARE:
4456 BUG_ON(!list_empty(&rocker_port->trans_mem));
4457 break;
4458 case SWITCHDEV_TRANS_ABORT:
4459 rocker_port_trans_abort(rocker_port);
4460 return 0;
4461 default:
4462 break;
4463 }
4464
4465 switch (obj->id) {
4466 case SWITCHDEV_OBJ_PORT_VLAN:
4467 err = rocker_port_vlans_add(rocker_port, obj->trans,
4468 &obj->vlan);
4469 break;
4470 default:
4471 err = -EOPNOTSUPP;
4472 break;
4473 }
4474
4475 return err;
4476}
4477
4478static int rocker_port_vlan_del(struct rocker_port *rocker_port,
4479 u16 vid, u16 flags)
4480{
4481 int err;
4482
4483 err = rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE,
4484 ROCKER_OP_FLAG_REMOVE, htons(vid));
4485 if (err)
4486 return err;
4487
4488 return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
4489 ROCKER_OP_FLAG_REMOVE, vid);
4490}
4491
4492static int rocker_port_vlans_del(struct rocker_port *rocker_port,
4493 struct switchdev_obj_vlan *vlan)
4494{
4495 u16 vid;
4496 int err;
4497
4498 for (vid = vlan->vid_start; vid <= vlan->vid_end; vid++) {
4499 err = rocker_port_vlan_del(rocker_port, vid, vlan->flags);
4500 if (err)
4501 return err;
4502 }
4503
4504 return 0;
4505}
4506
4507static int rocker_port_obj_del(struct net_device *dev,
4508 struct switchdev_obj *obj)
4509{
4510 struct rocker_port *rocker_port = netdev_priv(dev);
4511 int err = 0;
4512
4513 switch (obj->id) {
4514 case SWITCHDEV_OBJ_PORT_VLAN:
4515 err = rocker_port_vlans_del(rocker_port, &obj->vlan);
4516 break;
4517 default:
4518 err = -EOPNOTSUPP;
4519 break;
4520 }
4521
4522 return err;
4523}
4524
9d47c0a2
JP		 4525static int rocker_port_switchdev_fib_ipv4_add(struct net_device *dev,
4526 __be32 dst, int dst_len,
4527 struct fib_info *fi,
4528 u8 tos, u8 type,
4529 u32 nlflags, u32 tb_id)
c1beeef7
SF		 4530{
4531 struct rocker_port *rocker_port = netdev_priv(dev);
4532 int flags = 0;
4533
c4f20321
SF		 4534 return rocker_port_fib_ipv4(rocker_port, SWITCHDEV_TRANS_NONE,
4535 dst, dst_len, fi, tb_id, flags);
c1beeef7
SF		 4536}
4537
9d47c0a2
JP		 4538static int rocker_port_switchdev_fib_ipv4_del(struct net_device *dev,
4539 __be32 dst, int dst_len,
4540 struct fib_info *fi,
4541 u8 tos, u8 type, u32 tb_id)
c1beeef7
SF		 4542{
4543 struct rocker_port *rocker_port = netdev_priv(dev);
4544 int flags = ROCKER_OP_FLAG_REMOVE;
4545
c4f20321
SF		 4546 return rocker_port_fib_ipv4(rocker_port, SWITCHDEV_TRANS_NONE,
4547 dst, dst_len, fi, tb_id, flags);
c1beeef7
SF		 4548}
4549
9d47c0a2 4550static const struct switchdev_ops rocker_port_switchdev_ops = {
f8e20a9f 4551 .switchdev_port_attr_get = rocker_port_attr_get,
35636062 4552 .switchdev_port_attr_set = rocker_port_attr_set,
9228ad26
SF		 4553 .switchdev_port_obj_add = rocker_port_obj_add,
4554 .switchdev_port_obj_del = rocker_port_obj_del,
9d47c0a2
JP		 4555 .switchdev_fib_ipv4_add = rocker_port_switchdev_fib_ipv4_add,
4556 .switchdev_fib_ipv4_del = rocker_port_switchdev_fib_ipv4_del,
4b8ac966
JP		 4557};
4558
4559/********************
4560 * ethtool interface
4561 ********************/
4562
4563static int rocker_port_get_settings(struct net_device *dev,
4564 struct ethtool_cmd *ecmd)
4565{
4566 struct rocker_port *rocker_port = netdev_priv(dev);
4567
4568 return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd);
4569}
4570
4571static int rocker_port_set_settings(struct net_device *dev,
4572 struct ethtool_cmd *ecmd)
4573{
4574 struct rocker_port *rocker_port = netdev_priv(dev);
4575
4576 return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd);
4577}
4578
4579static void rocker_port_get_drvinfo(struct net_device *dev,
4580 struct ethtool_drvinfo *drvinfo)
4581{
4582 strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver));
4583 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
4584}
4585
9766e97a
DA		 4586static struct rocker_port_stats {
4587 char str[ETH_GSTRING_LEN];
4588 int type;
4589} rocker_port_stats[] = {
4590 { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, },
4591 { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, },
4592 { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, },
4593 { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, },
4594
4595 { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, },
4596 { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, },
4597 { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, },
4598 { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, },
4599};
4600
4601#define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats)
4602
4603static void rocker_port_get_strings(struct net_device *netdev, u32 stringset,
4604 u8 *data)
4605{
4606 u8 *p = data;
4607 int i;
4608
4609 switch (stringset) {
4610 case ETH_SS_STATS:
4611 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4612 memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN);
4613 p += ETH_GSTRING_LEN;
4614 }
4615 break;
4616 }
4617}
4618
4619static int
4620rocker_cmd_get_port_stats_prep(struct rocker *rocker,
4621 struct rocker_port *rocker_port,
4622 struct rocker_desc_info *desc_info,
4623 void *priv)
4624{
4625 struct rocker_tlv *cmd_stats;
4626
4627 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
4628 ROCKER_TLV_CMD_TYPE_GET_PORT_STATS))
4629 return -EMSGSIZE;
4630
4631 cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
4632 if (!cmd_stats)
4633 return -EMSGSIZE;
4634
4a6bb6d3
SF		 4635 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT,
4636 rocker_port->pport))
9766e97a
DA		 4637 return -EMSGSIZE;
4638
4639 rocker_tlv_nest_end(desc_info, cmd_stats);
4640
4641 return 0;
4642}
4643
4644static int
4645rocker_cmd_get_port_stats_ethtool_proc(struct rocker *rocker,
4646 struct rocker_port *rocker_port,
4647 struct rocker_desc_info *desc_info,
4648 void *priv)
4649{
4650 struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
4651 struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1];
4652 struct rocker_tlv *pattr;
4a6bb6d3 4653 u32 pport;
9766e97a
DA		 4654 u64 *data = priv;
4655 int i;
4656
4657 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
4658
4659 if (!attrs[ROCKER_TLV_CMD_INFO])
4660 return -EIO;
4661
4662 rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX,
4663 attrs[ROCKER_TLV_CMD_INFO]);
4664
4a6bb6d3 4665 if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT])
9766e97a
DA		 4666 return -EIO;
4667
4a6bb6d3
SF		 4668 pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]);
4669 if (pport != rocker_port->pport)
9766e97a
DA		 4670 return -EIO;
4671
4672 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4673 pattr = stats_attrs[rocker_port_stats[i].type];
4674 if (!pattr)
4675 continue;
4676
4677 data[i] = rocker_tlv_get_u64(pattr);
4678 }
4679
4680 return 0;
4681}
4682
4683static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port,
4684 void *priv)
4685{
4686 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 4687 SWITCHDEV_TRANS_NONE,
9766e97a
DA		 4688 rocker_cmd_get_port_stats_prep, NULL,
4689 rocker_cmd_get_port_stats_ethtool_proc,
c4f20321 4690 priv);
9766e97a
DA		 4691}
4692
4693static void rocker_port_get_stats(struct net_device *dev,
4694 struct ethtool_stats *stats, u64 *data)
4695{
4696 struct rocker_port *rocker_port = netdev_priv(dev);
4697
4698 if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) {
4699 int i;
4700
4701 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i)
4702 data[i] = 0;
4703 }
4704
4705 return;
4706}
4707
4708static int rocker_port_get_sset_count(struct net_device *netdev, int sset)
4709{
4710 switch (sset) {
4711 case ETH_SS_STATS:
4712 return ROCKER_PORT_STATS_LEN;
4713 default:
4714 return -EOPNOTSUPP;
4715 }
4716}
4717
4b8ac966
JP		 4718static const struct ethtool_ops rocker_port_ethtool_ops = {
4719 .get_settings = rocker_port_get_settings,
4720 .set_settings = rocker_port_set_settings,
4721 .get_drvinfo = rocker_port_get_drvinfo,
4722 .get_link = ethtool_op_get_link,
9766e97a
DA		 4723 .get_strings = rocker_port_get_strings,
4724 .get_ethtool_stats = rocker_port_get_stats,
4725 .get_sset_count = rocker_port_get_sset_count,
4b8ac966
JP		 4726};
4727
4728/*****************
4729 * NAPI interface
4730 *****************/
4731
4732static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi)
4733{
4734 return container_of(napi, struct rocker_port, napi_tx);
4735}
4736
4737static int rocker_port_poll_tx(struct napi_struct *napi, int budget)
4738{
4739 struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi);
4740 struct rocker *rocker = rocker_port->rocker;
4741 struct rocker_desc_info *desc_info;
4742 u32 credits = 0;
4743 int err;
4744
4745 /* Cleanup tx descriptors */
4746 while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) {
f2bbca51
DA		 4747 struct sk_buff *skb;
4748
4b8ac966
JP		 4749 err = rocker_desc_err(desc_info);
4750 if (err && net_ratelimit())
4751 netdev_err(rocker_port->dev, "tx desc received with err %d\n",
4752 err);
4753 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
f2bbca51
DA		 4754
4755 skb = rocker_desc_cookie_ptr_get(desc_info);
4756 if (err == 0) {
4757 rocker_port->dev->stats.tx_packets++;
4758 rocker_port->dev->stats.tx_bytes += skb->len;
4759 } else
4760 rocker_port->dev->stats.tx_errors++;
4761
4762 dev_kfree_skb_any(skb);
4b8ac966
JP		 4763 credits++;
4764 }
4765
4766 if (credits && netif_queue_stopped(rocker_port->dev))
4767 netif_wake_queue(rocker_port->dev);
4768
4769 napi_complete(napi);
4770 rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits);
4771
4772 return 0;
4773}
4774
4775static int rocker_port_rx_proc(struct rocker *rocker,
4776 struct rocker_port *rocker_port,
4777 struct rocker_desc_info *desc_info)
4778{
4779 struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
4780 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
4781 size_t rx_len;
4782
4783 if (!skb)
4784 return -ENOENT;
4785
4786 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
4787 if (!attrs[ROCKER_TLV_RX_FRAG_LEN])
4788 return -EINVAL;
4789
4790 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
4791
4792 rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]);
4793 skb_put(skb, rx_len);
4794 skb->protocol = eth_type_trans(skb, rocker_port->dev);
f2bbca51
DA		 4795
4796 rocker_port->dev->stats.rx_packets++;
4797 rocker_port->dev->stats.rx_bytes += skb->len;
4798
4b8ac966
JP		 4799 netif_receive_skb(skb);
4800
4801 return rocker_dma_rx_ring_skb_alloc(rocker, rocker_port, desc_info);
4802}
4803
4804static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi)
4805{
4806 return container_of(napi, struct rocker_port, napi_rx);
4807}
4808
4809static int rocker_port_poll_rx(struct napi_struct *napi, int budget)
4810{
4811 struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi);
4812 struct rocker *rocker = rocker_port->rocker;
4813 struct rocker_desc_info *desc_info;
4814 u32 credits = 0;
4815 int err;
4816
4817 /* Process rx descriptors */
4818 while (credits < budget &&
4819 (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) {
4820 err = rocker_desc_err(desc_info);
4821 if (err) {
4822 if (net_ratelimit())
4823 netdev_err(rocker_port->dev, "rx desc received with err %d\n",
4824 err);
4825 } else {
4826 err = rocker_port_rx_proc(rocker, rocker_port,
4827 desc_info);
4828 if (err && net_ratelimit())
4829 netdev_err(rocker_port->dev, "rx processing failed with err %d\n",
4830 err);
4831 }
f2bbca51
DA		 4832 if (err)
4833 rocker_port->dev->stats.rx_errors++;
4834
4b8ac966
JP		 4835 rocker_desc_gen_clear(desc_info);
4836 rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info);
4837 credits++;
4838 }
4839
4840 if (credits < budget)
4841 napi_complete(napi);
4842
4843 rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits);
4844
4845 return credits;
4846}
4847
4848/*****************
4849 * PCI driver ops
4850 *****************/
4851
4852static void rocker_carrier_init(struct rocker_port *rocker_port)
4853{
4854 struct rocker *rocker = rocker_port->rocker;
4855 u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS);
4856 bool link_up;
4857
4a6bb6d3 4858 link_up = link_status & (1 << rocker_port->pport);
4b8ac966
JP		 4859 if (link_up)
4860 netif_carrier_on(rocker_port->dev);
4861 else
4862 netif_carrier_off(rocker_port->dev);
4863}
4864
4865static void rocker_remove_ports(struct rocker *rocker)
4866{
9f6bbf7c 4867 struct rocker_port *rocker_port;
4b8ac966
JP		 4868 int i;
4869
9f6bbf7c
SF		 4870 for (i = 0; i < rocker->port_count; i++) {
4871 rocker_port = rocker->ports[i];
c4f20321
SF		 4872 rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE,
4873 ROCKER_OP_FLAG_REMOVE);
9f6bbf7c
SF		 4874 unregister_netdev(rocker_port->dev);
4875 }
4b8ac966
JP		 4876 kfree(rocker->ports);
4877}
4878
4879static void rocker_port_dev_addr_init(struct rocker *rocker,
4880 struct rocker_port *rocker_port)
4881{
4882 struct pci_dev *pdev = rocker->pdev;
4883 int err;
4884
4885 err = rocker_cmd_get_port_settings_macaddr(rocker_port,
4886 rocker_port->dev->dev_addr);
4887 if (err) {
4888 dev_warn(&pdev->dev, "failed to get mac address, using random\n");
4889 eth_hw_addr_random(rocker_port->dev);
4890 }
4891}
4892
4893static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
4894{
4895 struct pci_dev *pdev = rocker->pdev;
4896 struct rocker_port *rocker_port;
4897 struct net_device *dev;
4898 int err;
4899
4900 dev = alloc_etherdev(sizeof(struct rocker_port));
4901 if (!dev)
4902 return -ENOMEM;
4903 rocker_port = netdev_priv(dev);
4904 rocker_port->dev = dev;
4905 rocker_port->rocker = rocker;
4906 rocker_port->port_number = port_number;
4a6bb6d3 4907 rocker_port->pport = port_number + 1;
5111f80c 4908 rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC;
c4f20321 4909 INIT_LIST_HEAD(&rocker_port->trans_mem);
4b8ac966
JP		 4910
4911 rocker_port_dev_addr_init(rocker, rocker_port);
4912 dev->netdev_ops = &rocker_port_netdev_ops;
4913 dev->ethtool_ops = &rocker_port_ethtool_ops;
9d47c0a2 4914 dev->switchdev_ops = &rocker_port_switchdev_ops;
4b8ac966
JP		 4915 netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx,
4916 NAPI_POLL_WEIGHT);
4917 netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx,
4918 NAPI_POLL_WEIGHT);
4919 rocker_carrier_init(rocker_port);
4920
c1beeef7
SF		 4921 dev->features |= NETIF_F_NETNS_LOCAL |
4922 NETIF_F_HW_VLAN_CTAG_FILTER |
4923 NETIF_F_HW_SWITCH_OFFLOAD;
4b8ac966
JP		 4924
4925 err = register_netdev(dev);
4926 if (err) {
4927 dev_err(&pdev->dev, "register_netdev failed\n");
4928 goto err_register_netdev;
4929 }
4930 rocker->ports[port_number] = rocker_port;
4931
c4f20321 4932 rocker_port_set_learning(rocker_port, SWITCHDEV_TRANS_NONE);
5111f80c 4933
9f6bbf7c 4934 rocker_port->internal_vlan_id =
c4f20321
SF		 4935 rocker_port_internal_vlan_id_get(rocker_port,
4936 SWITCHDEV_TRANS_NONE,
4937 dev->ifindex);
4938 err = rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, 0);
9f6bbf7c
SF		 4939 if (err) {
4940 dev_err(&pdev->dev, "install ig port table failed\n");
4941 goto err_port_ig_tbl;
4942 }
4943
4b8ac966
JP		 4944 return 0;
4945
9f6bbf7c
SF		 4946err_port_ig_tbl:
4947 unregister_netdev(dev);
4b8ac966
JP		 4948err_register_netdev:
4949 free_netdev(dev);
4950 return err;
4951}
4952
4953static int rocker_probe_ports(struct rocker *rocker)
4954{
4955 int i;
4956 size_t alloc_size;
4957 int err;
4958
4959 alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
4960 rocker->ports = kmalloc(alloc_size, GFP_KERNEL);
e65ad3be
DC		 4961 if (!rocker->ports)
4962 return -ENOMEM;
4b8ac966
JP		 4963 for (i = 0; i < rocker->port_count; i++) {
4964 err = rocker_probe_port(rocker, i);
4965 if (err)
4966 goto remove_ports;
4967 }
4968 return 0;
4969
4970remove_ports:
4971 rocker_remove_ports(rocker);
4972 return err;
4973}
4974
4975static int rocker_msix_init(struct rocker *rocker)
4976{
4977 struct pci_dev *pdev = rocker->pdev;
4978 int msix_entries;
4979 int i;
4980 int err;
4981
4982 msix_entries = pci_msix_vec_count(pdev);
4983 if (msix_entries < 0)
4984 return msix_entries;
4985
4986 if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count))
4987 return -EINVAL;
4988
4989 rocker->msix_entries = kmalloc_array(msix_entries,
4990 sizeof(struct msix_entry),
4991 GFP_KERNEL);
4992 if (!rocker->msix_entries)
4993 return -ENOMEM;
4994
4995 for (i = 0; i < msix_entries; i++)
4996 rocker->msix_entries[i].entry = i;
4997
4998 err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries);
4999 if (err < 0)
5000 goto err_enable_msix;
5001
5002 return 0;
5003
5004err_enable_msix:
5005 kfree(rocker->msix_entries);
5006 return err;
5007}
5008
5009static void rocker_msix_fini(struct rocker *rocker)
5010{
5011 pci_disable_msix(rocker->pdev);
5012 kfree(rocker->msix_entries);
5013}
5014
5015static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
5016{
5017 struct rocker *rocker;
5018 int err;
5019
5020 rocker = kzalloc(sizeof(*rocker), GFP_KERNEL);
5021 if (!rocker)
5022 return -ENOMEM;
5023
5024 err = pci_enable_device(pdev);
5025 if (err) {
5026 dev_err(&pdev->dev, "pci_enable_device failed\n");
5027 goto err_pci_enable_device;
5028 }
5029
5030 err = pci_request_regions(pdev, rocker_driver_name);
5031 if (err) {
5032 dev_err(&pdev->dev, "pci_request_regions failed\n");
5033 goto err_pci_request_regions;
5034 }
5035
5036 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
5037 if (!err) {
5038 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
5039 if (err) {
5040 dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n");
5041 goto err_pci_set_dma_mask;
5042 }
5043 } else {
5044 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
5045 if (err) {
5046 dev_err(&pdev->dev, "pci_set_dma_mask failed\n");
5047 goto err_pci_set_dma_mask;
5048 }
5049 }
5050
5051 if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) {
5052 dev_err(&pdev->dev, "invalid PCI region size\n");
3122a92e 5053 err = -EINVAL;
4b8ac966
JP		 5054 goto err_pci_resource_len_check;
5055 }
5056
5057 rocker->hw_addr = ioremap(pci_resource_start(pdev, 0),
5058 pci_resource_len(pdev, 0));
5059 if (!rocker->hw_addr) {
5060 dev_err(&pdev->dev, "ioremap failed\n");
5061 err = -EIO;
5062 goto err_ioremap;
5063 }
5064 pci_set_master(pdev);
5065
5066 rocker->pdev = pdev;
5067 pci_set_drvdata(pdev, rocker);
5068
5069 rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT);
5070
5071 err = rocker_msix_init(rocker);
5072 if (err) {
5073 dev_err(&pdev->dev, "MSI-X init failed\n");
5074 goto err_msix_init;
5075 }
5076
5077 err = rocker_basic_hw_test(rocker);
5078 if (err) {
5079 dev_err(&pdev->dev, "basic hw test failed\n");
5080 goto err_basic_hw_test;
5081 }
5082
5083 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
5084
5085 err = rocker_dma_rings_init(rocker);
5086 if (err)
5087 goto err_dma_rings_init;
5088
5089 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD),
5090 rocker_cmd_irq_handler, 0,
5091 rocker_driver_name, rocker);
5092 if (err) {
5093 dev_err(&pdev->dev, "cannot assign cmd irq\n");
5094 goto err_request_cmd_irq;
5095 }
5096
5097 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT),
5098 rocker_event_irq_handler, 0,
5099 rocker_driver_name, rocker);
5100 if (err) {
5101 dev_err(&pdev->dev, "cannot assign event irq\n");
5102 goto err_request_event_irq;
5103 }
5104
5105 rocker->hw.id = rocker_read64(rocker, SWITCH_ID);
5106
9f6bbf7c
SF		 5107 err = rocker_init_tbls(rocker);
5108 if (err) {
5109 dev_err(&pdev->dev, "cannot init rocker tables\n");
5110 goto err_init_tbls;
5111 }
5112
4b8ac966
JP		 5113 err = rocker_probe_ports(rocker);
5114 if (err) {
5115 dev_err(&pdev->dev, "failed to probe ports\n");
5116 goto err_probe_ports;
5117 }
5118
5119 dev_info(&pdev->dev, "Rocker switch with id %016llx\n", rocker->hw.id);
5120
5121 return 0;
5122
5123err_probe_ports:
9f6bbf7c
SF		 5124 rocker_free_tbls(rocker);
5125err_init_tbls:
4b8ac966
JP		 5126 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
5127err_request_event_irq:
5128 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
5129err_request_cmd_irq:
5130 rocker_dma_rings_fini(rocker);
5131err_dma_rings_init:
5132err_basic_hw_test:
5133 rocker_msix_fini(rocker);
5134err_msix_init:
5135 iounmap(rocker->hw_addr);
5136err_ioremap:
5137err_pci_resource_len_check:
5138err_pci_set_dma_mask:
5139 pci_release_regions(pdev);
5140err_pci_request_regions:
5141 pci_disable_device(pdev);
5142err_pci_enable_device:
5143 kfree(rocker);
5144 return err;
5145}
5146
5147static void rocker_remove(struct pci_dev *pdev)
5148{
5149 struct rocker *rocker = pci_get_drvdata(pdev);
5150
9f6bbf7c 5151 rocker_free_tbls(rocker);
4b8ac966
JP		 5152 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
5153 rocker_remove_ports(rocker);
5154 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
5155 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
5156 rocker_dma_rings_fini(rocker);
5157 rocker_msix_fini(rocker);
5158 iounmap(rocker->hw_addr);
5159 pci_release_regions(rocker->pdev);
5160 pci_disable_device(rocker->pdev);
5161 kfree(rocker);
5162}
5163
5164static struct pci_driver rocker_pci_driver = {
5165 .name = rocker_driver_name,
5166 .id_table = rocker_pci_id_table,
5167 .probe = rocker_probe,
5168 .remove = rocker_remove,
5169};
5170
6c707945
SF		 5171/************************************
5172 * Net device notifier event handler
5173 ************************************/
5174
5175static bool rocker_port_dev_check(struct net_device *dev)
5176{
5177 return dev->netdev_ops == &rocker_port_netdev_ops;
5178}
5179
5180static int rocker_port_bridge_join(struct rocker_port *rocker_port,
5181 struct net_device *bridge)
5182{
5183 int err;
5184
c4f20321 5185 rocker_port_internal_vlan_id_put(rocker_port, SWITCHDEV_TRANS_NONE,
6c707945
SF		 5186 rocker_port->dev->ifindex);
5187
5188 rocker_port->bridge_dev = bridge;
5189
5190 /* Use bridge internal VLAN ID for untagged pkts */
c4f20321
SF		 5191 err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
5192 ROCKER_OP_FLAG_REMOVE, 0);
6c707945
SF		 5193 if (err)
5194 return err;
5195 rocker_port->internal_vlan_id =
5196 rocker_port_internal_vlan_id_get(rocker_port,
c4f20321 5197 SWITCHDEV_TRANS_NONE,
6c707945 5198 bridge->ifindex);
c4f20321 5199 return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, 0, 0);
6c707945
SF		 5200}
5201
5202static int rocker_port_bridge_leave(struct rocker_port *rocker_port)
5203{
5204 int err;
5205
c4f20321 5206 rocker_port_internal_vlan_id_put(rocker_port, SWITCHDEV_TRANS_NONE,
6c707945
SF		 5207 rocker_port->bridge_dev->ifindex);
5208
5209 rocker_port->bridge_dev = NULL;
5210
5211 /* Use port internal VLAN ID for untagged pkts */
c4f20321
SF		 5212 err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
5213 ROCKER_OP_FLAG_REMOVE, 0);
6c707945
SF		 5214 if (err)
5215 return err;
5216 rocker_port->internal_vlan_id =
5217 rocker_port_internal_vlan_id_get(rocker_port,
c4f20321 5218 SWITCHDEV_TRANS_NONE,
6c707945 5219 rocker_port->dev->ifindex);
c4f20321 5220 err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, 0, 0);
e47172ab
SF		 5221 if (err)
5222 return err;
5223
5224 if (rocker_port->dev->flags & IFF_UP)
c4f20321 5225 err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE);
6c707945
SF		 5226
5227 return err;
5228}
5229
5230static int rocker_port_master_changed(struct net_device *dev)
5231{
5232 struct rocker_port *rocker_port = netdev_priv(dev);
5233 struct net_device *master = netdev_master_upper_dev_get(dev);
5234 int err = 0;
5235
a6e95cc7
SH		 5236 /* There are currently three cases handled here:
5237 * 1. Joining a bridge
5238 * 2. Leaving a previously joined bridge
5239 * 3. Other, e.g. being added to or removed from a bond or openvswitch,
5240 * in which case nothing is done
5241 */
6c707945
SF		 5242 if (master && master->rtnl_link_ops &&
5243 !strcmp(master->rtnl_link_ops->kind, "bridge"))
5244 err = rocker_port_bridge_join(rocker_port, master);
a6e95cc7 5245 else if (rocker_port_is_bridged(rocker_port))
6c707945
SF		 5246 err = rocker_port_bridge_leave(rocker_port);
5247
5248 return err;
5249}
5250
5251static int rocker_netdevice_event(struct notifier_block *unused,
5252 unsigned long event, void *ptr)
5253{
5254 struct net_device *dev;
5255 int err;
5256
5257 switch (event) {
5258 case NETDEV_CHANGEUPPER:
5259 dev = netdev_notifier_info_to_dev(ptr);
5260 if (!rocker_port_dev_check(dev))
5261 return NOTIFY_DONE;
5262 err = rocker_port_master_changed(dev);
5263 if (err)
5264 netdev_warn(dev,
5265 "failed to reflect master change (err %d)\n",
5266 err);
5267 break;
5268 }
5269
5270 return NOTIFY_DONE;
5271}
5272
5273static struct notifier_block rocker_netdevice_nb __read_mostly = {
5274 .notifier_call = rocker_netdevice_event,
5275};
5276
c1beeef7
SF		 5277/************************************
5278 * Net event notifier event handler
5279 ************************************/
5280
5281static int rocker_neigh_update(struct net_device *dev, struct neighbour *n)
5282{
5283 struct rocker_port *rocker_port = netdev_priv(dev);
5284 int flags = (n->nud_state & NUD_VALID) ? 0 : ROCKER_OP_FLAG_REMOVE;
5285 __be32 ip_addr = *(__be32 *)n->primary_key;
5286
c4f20321
SF		 5287 return rocker_port_ipv4_neigh(rocker_port, SWITCHDEV_TRANS_NONE,
5288 flags, ip_addr, n->ha);
c1beeef7
SF		 5289}
5290
5291static int rocker_netevent_event(struct notifier_block *unused,
5292 unsigned long event, void *ptr)
5293{
5294 struct net_device *dev;
5295 struct neighbour *n = ptr;
5296 int err;
5297
5298 switch (event) {
5299 case NETEVENT_NEIGH_UPDATE:
5300 if (n->tbl != &arp_tbl)
5301 return NOTIFY_DONE;
5302 dev = n->dev;
5303 if (!rocker_port_dev_check(dev))
5304 return NOTIFY_DONE;
5305 err = rocker_neigh_update(dev, n);
5306 if (err)
5307 netdev_warn(dev,
5308 "failed to handle neigh update (err %d)\n",
5309 err);
5310 break;
5311 }
5312
5313 return NOTIFY_DONE;
5314}
5315
5316static struct notifier_block rocker_netevent_nb __read_mostly = {
5317 .notifier_call = rocker_netevent_event,
5318};
5319
4b8ac966
JP		 5320/***********************
5321 * Module init and exit
5322 ***********************/
5323
5324static int __init rocker_module_init(void)
5325{
6c707945
SF		 5326 int err;
5327
5328 register_netdevice_notifier(&rocker_netdevice_nb);
c1beeef7 5329 register_netevent_notifier(&rocker_netevent_nb);
6c707945
SF		 5330 err = pci_register_driver(&rocker_pci_driver);
5331 if (err)
5332 goto err_pci_register_driver;
5333 return 0;
5334
5335err_pci_register_driver:
c1beeef7 5336 unregister_netdevice_notifier(&rocker_netevent_nb);
6c707945
SF		 5337 unregister_netdevice_notifier(&rocker_netdevice_nb);
5338 return err;
4b8ac966
JP		 5339}
5340
5341static void __exit rocker_module_exit(void)
5342{
c1beeef7 5343 unregister_netevent_notifier(&rocker_netevent_nb);
6c707945 5344 unregister_netdevice_notifier(&rocker_netdevice_nb);
4b8ac966
JP		 5345 pci_unregister_driver(&rocker_pci_driver);
5346}
5347
5348module_init(rocker_module_init);
5349module_exit(rocker_module_exit);
5350
5351MODULE_LICENSE("GPL v2");
5352MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
5353MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
5354MODULE_DESCRIPTION("Rocker switch device driver");
5355MODULE_DEVICE_TABLE(pci, rocker_pci_id_table);
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