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rocker: mark STP update as 'no wait' processing
[mirror_ubuntu-disco-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;
4725ceb9 184 dma_addr_t mapaddr;
4b8ac966
JP		 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;
4725ceb9 240 spinlock_t cmd_ring_lock; /* for cmd ring accesses */
4b8ac966
JP		 241 struct rocker_dma_ring_info cmd_ring;
242 struct rocker_dma_ring_info event_ring;
9f6bbf7c 243 DECLARE_HASHTABLE(flow_tbl, 16);
4725ceb9 244 spinlock_t flow_tbl_lock; /* for flow tbl accesses */
9f6bbf7c
SF		 245 u64 flow_tbl_next_cookie;
246 DECLARE_HASHTABLE(group_tbl, 16);
4725ceb9 247 spinlock_t group_tbl_lock; /* for group tbl accesses */
9f6bbf7c 248 DECLARE_HASHTABLE(fdb_tbl, 16);
4725ceb9 249 spinlock_t fdb_tbl_lock; /* for fdb tbl accesses */
9f6bbf7c
SF		 250 unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN];
251 DECLARE_HASHTABLE(internal_vlan_tbl, 8);
4725ceb9 252 spinlock_t internal_vlan_tbl_lock; /* for vlan tbl accesses */
c1beeef7 253 DECLARE_HASHTABLE(neigh_tbl, 16);
4725ceb9 254 spinlock_t neigh_tbl_lock; /* for neigh tbl accesses */
c1beeef7 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
e5054643 298static __be16 rocker_port_vid_to_vlan(const struct rocker_port *rocker_port,
9f6bbf7c
SF		 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
e5054643 315static u16 rocker_port_vlan_to_vid(const struct rocker_port *rocker_port,
6c707945
SF		 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
e5054643 324static bool rocker_port_is_bridged(const struct rocker_port *rocker_port)
6c707945
SF		 325{
326 return !!rocker_port->bridge_dev;
327}
328
179f9a25
SF		 329#define ROCKER_OP_FLAG_REMOVE BIT(0)
330#define ROCKER_OP_FLAG_NOWAIT BIT(1)
331#define ROCKER_OP_FLAG_LEARNED BIT(2)
332#define ROCKER_OP_FLAG_REFRESH BIT(3)
333
c4f20321 334static void *__rocker_port_mem_alloc(struct rocker_port *rocker_port,
179f9a25
SF		 335 enum switchdev_trans trans, int flags,
336 size_t size)
c4f20321
SF		 337{
338 struct list_head *elem = NULL;
179f9a25
SF		 339 gfp_t gfp_flags = (flags & ROCKER_OP_FLAG_NOWAIT) ?
340 GFP_ATOMIC : GFP_KERNEL;
c4f20321
SF		 341
342 /* If in transaction prepare phase, allocate the memory
343 * and enqueue it on a per-port list. If in transaction
344 * commit phase, dequeue the memory from the per-port list
345 * rather than re-allocating the memory. The idea is the
346 * driver code paths for prepare and commit are identical
347 * so the memory allocated in the prepare phase is the
348 * memory used in the commit phase.
349 */
350
351 switch (trans) {
352 case SWITCHDEV_TRANS_PREPARE:
179f9a25 353 elem = kzalloc(size + sizeof(*elem), gfp_flags);
c4f20321
SF		 354 if (!elem)
355 return NULL;
356 list_add_tail(elem, &rocker_port->trans_mem);
357 break;
358 case SWITCHDEV_TRANS_COMMIT:
359 BUG_ON(list_empty(&rocker_port->trans_mem));
360 elem = rocker_port->trans_mem.next;
361 list_del_init(elem);
362 break;
363 case SWITCHDEV_TRANS_NONE:
179f9a25 364 elem = kzalloc(size + sizeof(*elem), gfp_flags);
c4f20321
SF		 365 if (elem)
366 INIT_LIST_HEAD(elem);
367 break;
368 default:
369 break;
370 }
371
372 return elem ? elem + 1 : NULL;
373}
374
375static void *rocker_port_kzalloc(struct rocker_port *rocker_port,
179f9a25
SF		 376 enum switchdev_trans trans, int flags,
377 size_t size)
c4f20321 378{
179f9a25 379 return __rocker_port_mem_alloc(rocker_port, trans, flags, size);
c4f20321
SF		 380}
381
382static void *rocker_port_kcalloc(struct rocker_port *rocker_port,
179f9a25
SF		 383 enum switchdev_trans trans, int flags,
384 size_t n, size_t size)
c4f20321 385{
179f9a25 386 return __rocker_port_mem_alloc(rocker_port, trans, flags, n * size);
c4f20321
SF		 387}
388
0985df73 389static void rocker_port_kfree(enum switchdev_trans trans, const void *mem)
c4f20321
SF		 390{
391 struct list_head *elem;
392
393 /* Frees are ignored if in transaction prepare phase. The
394 * memory remains on the per-port list until freed in the
395 * commit phase.
396 */
397
398 if (trans == SWITCHDEV_TRANS_PREPARE)
399 return;
400
401 elem = (struct list_head *)mem - 1;
402 BUG_ON(!list_empty(elem));
403 kfree(elem);
404}
405
4b8ac966
JP		 406struct rocker_wait {
407 wait_queue_head_t wait;
408 bool done;
179f9a25 409 bool nowait;
4b8ac966
JP		 410};
411
412static void rocker_wait_reset(struct rocker_wait *wait)
413{
414 wait->done = false;
179f9a25 415 wait->nowait = false;
4b8ac966
JP		 416}
417
418static void rocker_wait_init(struct rocker_wait *wait)
419{
420 init_waitqueue_head(&wait->wait);
421 rocker_wait_reset(wait);
422}
423
c4f20321 424static struct rocker_wait *rocker_wait_create(struct rocker_port *rocker_port,
179f9a25
SF		 425 enum switchdev_trans trans,
426 int flags)
4b8ac966
JP		 427{
428 struct rocker_wait *wait;
429
179f9a25 430 wait = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*wait));
4b8ac966
JP		 431 if (!wait)
432 return NULL;
433 rocker_wait_init(wait);
434 return wait;
435}
436
0985df73 437static void rocker_wait_destroy(enum switchdev_trans trans,
c4f20321 438 struct rocker_wait *wait)
4b8ac966 439{
0985df73 440 rocker_port_kfree(trans, wait);
4b8ac966
JP		 441}
442
443static bool rocker_wait_event_timeout(struct rocker_wait *wait,
444 unsigned long timeout)
445{
446 wait_event_timeout(wait->wait, wait->done, HZ / 10);
447 if (!wait->done)
448 return false;
449 return true;
450}
451
452static void rocker_wait_wake_up(struct rocker_wait *wait)
453{
454 wait->done = true;
455 wake_up(&wait->wait);
456}
457
e5054643 458static u32 rocker_msix_vector(const struct rocker *rocker, unsigned int vector)
4b8ac966
JP		 459{
460 return rocker->msix_entries[vector].vector;
461}
462
e5054643 463static u32 rocker_msix_tx_vector(const struct rocker_port *rocker_port)
4b8ac966
JP		 464{
465 return rocker_msix_vector(rocker_port->rocker,
466 ROCKER_MSIX_VEC_TX(rocker_port->port_number));
467}
468
e5054643 469static u32 rocker_msix_rx_vector(const struct rocker_port *rocker_port)
4b8ac966
JP		 470{
471 return rocker_msix_vector(rocker_port->rocker,
472 ROCKER_MSIX_VEC_RX(rocker_port->port_number));
473}
474
475#define rocker_write32(rocker, reg, val) \
476 writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))
477#define rocker_read32(rocker, reg) \
478 readl((rocker)->hw_addr + (ROCKER_ ## reg))
479#define rocker_write64(rocker, reg, val) \
480 writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))
481#define rocker_read64(rocker, reg) \
482 readq((rocker)->hw_addr + (ROCKER_ ## reg))
483
484/*****************************
485 * HW basic testing functions
486 *****************************/
487
e5054643 488static int rocker_reg_test(const struct rocker *rocker)
4b8ac966 489{
e5054643 490 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 491 u64 test_reg;
492 u64 rnd;
493
494 rnd = prandom_u32();
495 rnd >>= 1;
496 rocker_write32(rocker, TEST_REG, rnd);
497 test_reg = rocker_read32(rocker, TEST_REG);
498 if (test_reg != rnd * 2) {
499 dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n",
500 test_reg, rnd * 2);
501 return -EIO;
502 }
503
504 rnd = prandom_u32();
505 rnd <<= 31;
506 rnd |= prandom_u32();
507 rocker_write64(rocker, TEST_REG64, rnd);
508 test_reg = rocker_read64(rocker, TEST_REG64);
509 if (test_reg != rnd * 2) {
510 dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n",
511 test_reg, rnd * 2);
512 return -EIO;
513 }
514
515 return 0;
516}
517
e5054643
SH		 518static int rocker_dma_test_one(const struct rocker *rocker,
519 struct rocker_wait *wait, u32 test_type,
520 dma_addr_t dma_handle, const unsigned char *buf,
521 const unsigned char *expect, size_t size)
4b8ac966 522{
e5054643 523 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 524 int i;
525
526 rocker_wait_reset(wait);
527 rocker_write32(rocker, TEST_DMA_CTRL, test_type);
528
529 if (!rocker_wait_event_timeout(wait, HZ / 10)) {
530 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
531 return -EIO;
532 }
533
534 for (i = 0; i < size; i++) {
535 if (buf[i] != expect[i]) {
536 dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected",
537 buf[i], i, expect[i]);
538 return -EIO;
539 }
540 }
541 return 0;
542}
543
544#define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)
545#define ROCKER_TEST_DMA_FILL_PATTERN 0x96
546
e5054643 547static int rocker_dma_test_offset(const struct rocker *rocker,
4b8ac966
JP		 548 struct rocker_wait *wait, int offset)
549{
550 struct pci_dev *pdev = rocker->pdev;
551 unsigned char *alloc;
552 unsigned char *buf;
553 unsigned char *expect;
554 dma_addr_t dma_handle;
555 int i;
556 int err;
557
558 alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset,
559 GFP_KERNEL | GFP_DMA);
560 if (!alloc)
561 return -ENOMEM;
562 buf = alloc + offset;
563 expect = buf + ROCKER_TEST_DMA_BUF_SIZE;
564
565 dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE,
566 PCI_DMA_BIDIRECTIONAL);
567 if (pci_dma_mapping_error(pdev, dma_handle)) {
568 err = -EIO;
569 goto free_alloc;
570 }
571
572 rocker_write64(rocker, TEST_DMA_ADDR, dma_handle);
573 rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE);
574
575 memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE);
576 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL,
577 dma_handle, buf, expect,
578 ROCKER_TEST_DMA_BUF_SIZE);
579 if (err)
580 goto unmap;
581
582 memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE);
583 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR,
584 dma_handle, buf, expect,
585 ROCKER_TEST_DMA_BUF_SIZE);
586 if (err)
587 goto unmap;
588
589 prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
590 for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++)
591 expect[i] = ~buf[i];
592 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT,
593 dma_handle, buf, expect,
594 ROCKER_TEST_DMA_BUF_SIZE);
595 if (err)
596 goto unmap;
597
598unmap:
599 pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE,
600 PCI_DMA_BIDIRECTIONAL);
601free_alloc:
602 kfree(alloc);
603
604 return err;
605}
606
e5054643
SH		 607static int rocker_dma_test(const struct rocker *rocker,
608 struct rocker_wait *wait)
4b8ac966
JP		 609{
610 int i;
611 int err;
612
613 for (i = 0; i < 8; i++) {
614 err = rocker_dma_test_offset(rocker, wait, i);
615 if (err)
616 return err;
617 }
618 return 0;
619}
620
621static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id)
622{
623 struct rocker_wait *wait = dev_id;
624
625 rocker_wait_wake_up(wait);
626
627 return IRQ_HANDLED;
628}
629
e5054643 630static int rocker_basic_hw_test(const struct rocker *rocker)
4b8ac966 631{
e5054643 632 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 633 struct rocker_wait wait;
634 int err;
635
636 err = rocker_reg_test(rocker);
637 if (err) {
638 dev_err(&pdev->dev, "reg test failed\n");
639 return err;
640 }
641
642 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST),
643 rocker_test_irq_handler, 0,
644 rocker_driver_name, &wait);
645 if (err) {
646 dev_err(&pdev->dev, "cannot assign test irq\n");
647 return err;
648 }
649
650 rocker_wait_init(&wait);
651 rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST);
652
653 if (!rocker_wait_event_timeout(&wait, HZ / 10)) {
654 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
655 err = -EIO;
656 goto free_irq;
657 }
658
659 err = rocker_dma_test(rocker, &wait);
660 if (err)
661 dev_err(&pdev->dev, "dma test failed\n");
662
663free_irq:
664 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait);
665 return err;
666}
667
668/******
669 * TLV
670 ******/
671
672#define ROCKER_TLV_ALIGNTO 8U
673#define ROCKER_TLV_ALIGN(len) \
674 (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
675#define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
676
677/* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
678 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
679 * | Header | Pad | Payload | Pad |
680 * | (struct rocker_tlv) | ing | | ing |
681 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
682 * <--------------------------- tlv->len -------------------------->
683 */
684
685static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv,
686 int *remaining)
687{
688 int totlen = ROCKER_TLV_ALIGN(tlv->len);
689
690 *remaining -= totlen;
691 return (struct rocker_tlv *) ((char *) tlv + totlen);
692}
693
694static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining)
695{
696 return remaining >= (int) ROCKER_TLV_HDRLEN &&
697 tlv->len >= ROCKER_TLV_HDRLEN &&
698 tlv->len <= remaining;
699}
700
701#define rocker_tlv_for_each(pos, head, len, rem) \
702 for (pos = head, rem = len; \
703 rocker_tlv_ok(pos, rem); \
704 pos = rocker_tlv_next(pos, &(rem)))
705
706#define rocker_tlv_for_each_nested(pos, tlv, rem) \
707 rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
708 rocker_tlv_len(tlv), rem)
709
710static int rocker_tlv_attr_size(int payload)
711{
712 return ROCKER_TLV_HDRLEN + payload;
713}
714
715static int rocker_tlv_total_size(int payload)
716{
717 return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload));
718}
719
720static int rocker_tlv_padlen(int payload)
721{
722 return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload);
723}
724
725static int rocker_tlv_type(const struct rocker_tlv *tlv)
726{
727 return tlv->type;
728}
729
730static void *rocker_tlv_data(const struct rocker_tlv *tlv)
731{
732 return (char *) tlv + ROCKER_TLV_HDRLEN;
733}
734
735static int rocker_tlv_len(const struct rocker_tlv *tlv)
736{
737 return tlv->len - ROCKER_TLV_HDRLEN;
738}
739
740static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv)
741{
742 return *(u8 *) rocker_tlv_data(tlv);
743}
744
745static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv)
746{
747 return *(u16 *) rocker_tlv_data(tlv);
748}
749
9b03c71f
JP		 750static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv)
751{
752 return *(__be16 *) rocker_tlv_data(tlv);
753}
754
4b8ac966
JP		 755static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv)
756{
757 return *(u32 *) rocker_tlv_data(tlv);
758}
759
760static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv)
761{
762 return *(u64 *) rocker_tlv_data(tlv);
763}
764
e5054643 765static void rocker_tlv_parse(const struct rocker_tlv **tb, int maxtype,
4b8ac966
JP		 766 const char *buf, int buf_len)
767{
768 const struct rocker_tlv *tlv;
769 const struct rocker_tlv *head = (const struct rocker_tlv *) buf;
770 int rem;
771
772 memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1));
773
774 rocker_tlv_for_each(tlv, head, buf_len, rem) {
775 u32 type = rocker_tlv_type(tlv);
776
777 if (type > 0 && type <= maxtype)
e5054643 778 tb[type] = tlv;
4b8ac966
JP		 779 }
780}
781
e5054643 782static void rocker_tlv_parse_nested(const struct rocker_tlv **tb, int maxtype,
4b8ac966
JP		 783 const struct rocker_tlv *tlv)
784{
785 rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv),
786 rocker_tlv_len(tlv));
787}
788
e5054643
SH		 789static void rocker_tlv_parse_desc(const struct rocker_tlv **tb, int maxtype,
790 const struct rocker_desc_info *desc_info)
4b8ac966
JP		 791{
792 rocker_tlv_parse(tb, maxtype, desc_info->data,
793 desc_info->desc->tlv_size);
794}
795
796static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info)
797{
798 return (struct rocker_tlv *) ((char *) desc_info->data +
799 desc_info->tlv_size);
800}
801
802static int rocker_tlv_put(struct rocker_desc_info *desc_info,
803 int attrtype, int attrlen, const void *data)
804{
805 int tail_room = desc_info->data_size - desc_info->tlv_size;
806 int total_size = rocker_tlv_total_size(attrlen);
807 struct rocker_tlv *tlv;
808
809 if (unlikely(tail_room < total_size))
810 return -EMSGSIZE;
811
812 tlv = rocker_tlv_start(desc_info);
813 desc_info->tlv_size += total_size;
814 tlv->type = attrtype;
815 tlv->len = rocker_tlv_attr_size(attrlen);
816 memcpy(rocker_tlv_data(tlv), data, attrlen);
817 memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen));
818 return 0;
819}
820
821static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info,
822 int attrtype, u8 value)
823{
824 return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value);
825}
826
827static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info,
828 int attrtype, u16 value)
829{
830 return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value);
831}
832
9b03c71f
JP		 833static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info,
834 int attrtype, __be16 value)
835{
836 return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value);
837}
838
4b8ac966
JP		 839static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info,
840 int attrtype, u32 value)
841{
842 return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value);
843}
844
9b03c71f
JP		 845static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info,
846 int attrtype, __be32 value)
847{
848 return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value);
849}
850
4b8ac966
JP		 851static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info,
852 int attrtype, u64 value)
853{
854 return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value);
855}
856
857static struct rocker_tlv *
858rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype)
859{
860 struct rocker_tlv *start = rocker_tlv_start(desc_info);
861
862 if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0)
863 return NULL;
864
865 return start;
866}
867
868static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info,
869 struct rocker_tlv *start)
870{
871 start->len = (char *) rocker_tlv_start(desc_info) - (char *) start;
872}
873
874static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info,
e5054643 875 const struct rocker_tlv *start)
4b8ac966 876{
e5054643 877 desc_info->tlv_size = (const char *) start - desc_info->data;
4b8ac966
JP		 878}
879
880/******************************************
881 * DMA rings and descriptors manipulations
882 ******************************************/
883
884static u32 __pos_inc(u32 pos, size_t limit)
885{
886 return ++pos == limit ? 0 : pos;
887}
888
e5054643 889static int rocker_desc_err(const struct rocker_desc_info *desc_info)
4b8ac966 890{
7eb344f8
SF		 891 int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN;
892
893 switch (err) {
894 case ROCKER_OK:
895 return 0;
896 case -ROCKER_ENOENT:
897 return -ENOENT;
898 case -ROCKER_ENXIO:
899 return -ENXIO;
900 case -ROCKER_ENOMEM:
901 return -ENOMEM;
902 case -ROCKER_EEXIST:
903 return -EEXIST;
904 case -ROCKER_EINVAL:
905 return -EINVAL;
906 case -ROCKER_EMSGSIZE:
907 return -EMSGSIZE;
908 case -ROCKER_ENOTSUP:
909 return -EOPNOTSUPP;
910 case -ROCKER_ENOBUFS:
911 return -ENOBUFS;
912 }
913
914 return -EINVAL;
4b8ac966
JP		 915}
916
e5054643 917static void rocker_desc_gen_clear(const struct rocker_desc_info *desc_info)
4b8ac966
JP		 918{
919 desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN;
920}
921
e5054643 922static bool rocker_desc_gen(const struct rocker_desc_info *desc_info)
4b8ac966
JP		 923{
924 u32 comp_err = desc_info->desc->comp_err;
925
926 return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false;
927}
928
e5054643 929static void *rocker_desc_cookie_ptr_get(const struct rocker_desc_info *desc_info)
4b8ac966 930{
adedf37b 931 return (void *)(uintptr_t)desc_info->desc->cookie;
4b8ac966
JP		 932}
933
e5054643 934static void rocker_desc_cookie_ptr_set(const struct rocker_desc_info *desc_info,
4b8ac966
JP		 935 void *ptr)
936{
adedf37b 937 desc_info->desc->cookie = (uintptr_t) ptr;
4b8ac966
JP		 938}
939
940static struct rocker_desc_info *
e5054643 941rocker_desc_head_get(const struct rocker_dma_ring_info *info)
4b8ac966
JP		 942{
943 static struct rocker_desc_info *desc_info;
944 u32 head = __pos_inc(info->head, info->size);
945
946 desc_info = &info->desc_info[info->head];
947 if (head == info->tail)
948 return NULL; /* ring full */
949 desc_info->tlv_size = 0;
950 return desc_info;
951}
952
e5054643 953static void rocker_desc_commit(const struct rocker_desc_info *desc_info)
4b8ac966
JP		 954{
955 desc_info->desc->buf_size = desc_info->data_size;
956 desc_info->desc->tlv_size = desc_info->tlv_size;
957}
958
e5054643 959static void rocker_desc_head_set(const struct rocker *rocker,
4b8ac966 960 struct rocker_dma_ring_info *info,
e5054643 961 const struct rocker_desc_info *desc_info)
4b8ac966
JP		 962{
963 u32 head = __pos_inc(info->head, info->size);
964
965 BUG_ON(head == info->tail);
966 rocker_desc_commit(desc_info);
967 info->head = head;
968 rocker_write32(rocker, DMA_DESC_HEAD(info->type), head);
969}
970
971static struct rocker_desc_info *
972rocker_desc_tail_get(struct rocker_dma_ring_info *info)
973{
974 static struct rocker_desc_info *desc_info;
975
976 if (info->tail == info->head)
977 return NULL; /* nothing to be done between head and tail */
978 desc_info = &info->desc_info[info->tail];
979 if (!rocker_desc_gen(desc_info))
980 return NULL; /* gen bit not set, desc is not ready yet */
981 info->tail = __pos_inc(info->tail, info->size);
982 desc_info->tlv_size = desc_info->desc->tlv_size;
983 return desc_info;
984}
985
e5054643
SH		 986static void rocker_dma_ring_credits_set(const struct rocker *rocker,
987 const struct rocker_dma_ring_info *info,
4b8ac966
JP		 988 u32 credits)
989{
990 if (credits)
991 rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits);
992}
993
994static unsigned long rocker_dma_ring_size_fix(size_t size)
995{
996 return max(ROCKER_DMA_SIZE_MIN,
997 min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX));
998}
999
e5054643 1000static int rocker_dma_ring_create(const struct rocker *rocker,
4b8ac966
JP		 1001 unsigned int type,
1002 size_t size,
1003 struct rocker_dma_ring_info *info)
1004{
1005 int i;
1006
1007 BUG_ON(size != rocker_dma_ring_size_fix(size));
1008 info->size = size;
1009 info->type = type;
1010 info->head = 0;
1011 info->tail = 0;
1012 info->desc_info = kcalloc(info->size, sizeof(*info->desc_info),
1013 GFP_KERNEL);
1014 if (!info->desc_info)
1015 return -ENOMEM;
1016
1017 info->desc = pci_alloc_consistent(rocker->pdev,
1018 info->size * sizeof(*info->desc),
1019 &info->mapaddr);
1020 if (!info->desc) {
1021 kfree(info->desc_info);
1022 return -ENOMEM;
1023 }
1024
1025 for (i = 0; i < info->size; i++)
1026 info->desc_info[i].desc = &info->desc[i];
1027
1028 rocker_write32(rocker, DMA_DESC_CTRL(info->type),
1029 ROCKER_DMA_DESC_CTRL_RESET);
1030 rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr);
1031 rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size);
1032
1033 return 0;
1034}
1035
e5054643
SH		 1036static void rocker_dma_ring_destroy(const struct rocker *rocker,
1037 const struct rocker_dma_ring_info *info)
4b8ac966
JP		 1038{
1039 rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0);
1040
1041 pci_free_consistent(rocker->pdev,
1042 info->size * sizeof(struct rocker_desc),
1043 info->desc, info->mapaddr);
1044 kfree(info->desc_info);
1045}
1046
e5054643 1047static void rocker_dma_ring_pass_to_producer(const struct rocker *rocker,
4b8ac966
JP		 1048 struct rocker_dma_ring_info *info)
1049{
1050 int i;
1051
1052 BUG_ON(info->head || info->tail);
1053
1054 /* When ring is consumer, we need to advance head for each desc.
1055 * That tells hw that the desc is ready to be used by it.
1056 */
1057 for (i = 0; i < info->size - 1; i++)
1058 rocker_desc_head_set(rocker, info, &info->desc_info[i]);
1059 rocker_desc_commit(&info->desc_info[i]);
1060}
1061
e5054643
SH		 1062static int rocker_dma_ring_bufs_alloc(const struct rocker *rocker,
1063 const struct rocker_dma_ring_info *info,
4b8ac966
JP		 1064 int direction, size_t buf_size)
1065{
1066 struct pci_dev *pdev = rocker->pdev;
1067 int i;
1068 int err;
1069
1070 for (i = 0; i < info->size; i++) {
1071 struct rocker_desc_info *desc_info = &info->desc_info[i];
1072 struct rocker_desc *desc = &info->desc[i];
1073 dma_addr_t dma_handle;
1074 char *buf;
1075
1076 buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA);
1077 if (!buf) {
1078 err = -ENOMEM;
1079 goto rollback;
1080 }
1081
1082 dma_handle = pci_map_single(pdev, buf, buf_size, direction);
1083 if (pci_dma_mapping_error(pdev, dma_handle)) {
1084 kfree(buf);
1085 err = -EIO;
1086 goto rollback;
1087 }
1088
1089 desc_info->data = buf;
1090 desc_info->data_size = buf_size;
1091 dma_unmap_addr_set(desc_info, mapaddr, dma_handle);
1092
1093 desc->buf_addr = dma_handle;
1094 desc->buf_size = buf_size;
1095 }
1096 return 0;
1097
1098rollback:
1099 for (i--; i >= 0; i--) {
e5054643 1100 const struct rocker_desc_info *desc_info = &info->desc_info[i];
4b8ac966
JP		 1101
1102 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1103 desc_info->data_size, direction);
1104 kfree(desc_info->data);
1105 }
1106 return err;
1107}
1108
e5054643
SH		 1109static void rocker_dma_ring_bufs_free(const struct rocker *rocker,
1110 const struct rocker_dma_ring_info *info,
4b8ac966
JP		 1111 int direction)
1112{
1113 struct pci_dev *pdev = rocker->pdev;
1114 int i;
1115
1116 for (i = 0; i < info->size; i++) {
e5054643 1117 const struct rocker_desc_info *desc_info = &info->desc_info[i];
4b8ac966
JP		 1118 struct rocker_desc *desc = &info->desc[i];
1119
1120 desc->buf_addr = 0;
1121 desc->buf_size = 0;
1122 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1123 desc_info->data_size, direction);
1124 kfree(desc_info->data);
1125 }
1126}
1127
1128static int rocker_dma_rings_init(struct rocker *rocker)
1129{
e5054643 1130 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 1131 int err;
1132
1133 err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD,
1134 ROCKER_DMA_CMD_DEFAULT_SIZE,
1135 &rocker->cmd_ring);
1136 if (err) {
1137 dev_err(&pdev->dev, "failed to create command dma ring\n");
1138 return err;
1139 }
1140
1141 spin_lock_init(&rocker->cmd_ring_lock);
1142
1143 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring,
1144 PCI_DMA_BIDIRECTIONAL, PAGE_SIZE);
1145 if (err) {
1146 dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n");
1147 goto err_dma_cmd_ring_bufs_alloc;
1148 }
1149
1150 err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT,
1151 ROCKER_DMA_EVENT_DEFAULT_SIZE,
1152 &rocker->event_ring);
1153 if (err) {
1154 dev_err(&pdev->dev, "failed to create event dma ring\n");
1155 goto err_dma_event_ring_create;
1156 }
1157
1158 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring,
1159 PCI_DMA_FROMDEVICE, PAGE_SIZE);
1160 if (err) {
1161 dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n");
1162 goto err_dma_event_ring_bufs_alloc;
1163 }
1164 rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring);
1165 return 0;
1166
1167err_dma_event_ring_bufs_alloc:
1168 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1169err_dma_event_ring_create:
1170 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1171 PCI_DMA_BIDIRECTIONAL);
1172err_dma_cmd_ring_bufs_alloc:
1173 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1174 return err;
1175}
1176
1177static void rocker_dma_rings_fini(struct rocker *rocker)
1178{
1179 rocker_dma_ring_bufs_free(rocker, &rocker->event_ring,
1180 PCI_DMA_BIDIRECTIONAL);
1181 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1182 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1183 PCI_DMA_BIDIRECTIONAL);
1184 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1185}
1186
534ba6a8 1187static int rocker_dma_rx_ring_skb_map(const struct rocker_port *rocker_port,
4b8ac966
JP		 1188 struct rocker_desc_info *desc_info,
1189 struct sk_buff *skb, size_t buf_len)
1190{
534ba6a8 1191 const struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 1192 struct pci_dev *pdev = rocker->pdev;
1193 dma_addr_t dma_handle;
1194
1195 dma_handle = pci_map_single(pdev, skb->data, buf_len,
1196 PCI_DMA_FROMDEVICE);
1197 if (pci_dma_mapping_error(pdev, dma_handle))
1198 return -EIO;
1199 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle))
1200 goto tlv_put_failure;
1201 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len))
1202 goto tlv_put_failure;
1203 return 0;
1204
1205tlv_put_failure:
1206 pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE);
1207 desc_info->tlv_size = 0;
1208 return -EMSGSIZE;
1209}
1210
e5054643 1211static size_t rocker_port_rx_buf_len(const struct rocker_port *rocker_port)
4b8ac966
JP		 1212{
1213 return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
1214}
1215
534ba6a8 1216static int rocker_dma_rx_ring_skb_alloc(const struct rocker_port *rocker_port,
4b8ac966
JP		 1217 struct rocker_desc_info *desc_info)
1218{
1219 struct net_device *dev = rocker_port->dev;
1220 struct sk_buff *skb;
1221 size_t buf_len = rocker_port_rx_buf_len(rocker_port);
1222 int err;
1223
1224 /* Ensure that hw will see tlv_size zero in case of an error.
1225 * That tells hw to use another descriptor.
1226 */
1227 rocker_desc_cookie_ptr_set(desc_info, NULL);
1228 desc_info->tlv_size = 0;
1229
1230 skb = netdev_alloc_skb_ip_align(dev, buf_len);
1231 if (!skb)
1232 return -ENOMEM;
534ba6a8 1233 err = rocker_dma_rx_ring_skb_map(rocker_port, desc_info, skb, buf_len);
4b8ac966
JP		 1234 if (err) {
1235 dev_kfree_skb_any(skb);
1236 return err;
1237 }
1238 rocker_desc_cookie_ptr_set(desc_info, skb);
1239 return 0;
1240}
1241
e5054643
SH		 1242static void rocker_dma_rx_ring_skb_unmap(const struct rocker *rocker,
1243 const struct rocker_tlv **attrs)
4b8ac966
JP		 1244{
1245 struct pci_dev *pdev = rocker->pdev;
1246 dma_addr_t dma_handle;
1247 size_t len;
1248
1249 if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] ||
1250 !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN])
1251 return;
1252 dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]);
1253 len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]);
1254 pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE);
1255}
1256
e5054643
SH		 1257static void rocker_dma_rx_ring_skb_free(const struct rocker *rocker,
1258 const struct rocker_desc_info *desc_info)
4b8ac966 1259{
e5054643 1260 const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
4b8ac966
JP		 1261 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
1262
1263 if (!skb)
1264 return;
1265 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
1266 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
1267 dev_kfree_skb_any(skb);
1268}
1269
534ba6a8 1270static int rocker_dma_rx_ring_skbs_alloc(const struct rocker_port *rocker_port)
4b8ac966 1271{
e5054643 1272 const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
534ba6a8 1273 const struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 1274 int i;
1275 int err;
1276
1277 for (i = 0; i < rx_ring->size; i++) {
534ba6a8 1278 err = rocker_dma_rx_ring_skb_alloc(rocker_port,
4b8ac966
JP		 1279 &rx_ring->desc_info[i]);
1280 if (err)
1281 goto rollback;
1282 }
1283 return 0;
1284
1285rollback:
1286 for (i--; i >= 0; i--)
1287 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1288 return err;
1289}
1290
534ba6a8 1291static void rocker_dma_rx_ring_skbs_free(const struct rocker_port *rocker_port)
4b8ac966 1292{
e5054643 1293 const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
534ba6a8 1294 const struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 1295 int i;
1296
1297 for (i = 0; i < rx_ring->size; i++)
1298 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1299}
1300
1301static int rocker_port_dma_rings_init(struct rocker_port *rocker_port)
1302{
1303 struct rocker *rocker = rocker_port->rocker;
1304 int err;
1305
1306 err = rocker_dma_ring_create(rocker,
1307 ROCKER_DMA_TX(rocker_port->port_number),
1308 ROCKER_DMA_TX_DEFAULT_SIZE,
1309 &rocker_port->tx_ring);
1310 if (err) {
1311 netdev_err(rocker_port->dev, "failed to create tx dma ring\n");
1312 return err;
1313 }
1314
1315 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring,
1316 PCI_DMA_TODEVICE,
1317 ROCKER_DMA_TX_DESC_SIZE);
1318 if (err) {
1319 netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n");
1320 goto err_dma_tx_ring_bufs_alloc;
1321 }
1322
1323 err = rocker_dma_ring_create(rocker,
1324 ROCKER_DMA_RX(rocker_port->port_number),
1325 ROCKER_DMA_RX_DEFAULT_SIZE,
1326 &rocker_port->rx_ring);
1327 if (err) {
1328 netdev_err(rocker_port->dev, "failed to create rx dma ring\n");
1329 goto err_dma_rx_ring_create;
1330 }
1331
1332 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring,
1333 PCI_DMA_BIDIRECTIONAL,
1334 ROCKER_DMA_RX_DESC_SIZE);
1335 if (err) {
1336 netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n");
1337 goto err_dma_rx_ring_bufs_alloc;
1338 }
1339
534ba6a8 1340 err = rocker_dma_rx_ring_skbs_alloc(rocker_port);
4b8ac966
JP		 1341 if (err) {
1342 netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n");
1343 goto err_dma_rx_ring_skbs_alloc;
1344 }
1345 rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring);
1346
1347 return 0;
1348
1349err_dma_rx_ring_skbs_alloc:
1350 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1351 PCI_DMA_BIDIRECTIONAL);
1352err_dma_rx_ring_bufs_alloc:
1353 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1354err_dma_rx_ring_create:
1355 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1356 PCI_DMA_TODEVICE);
1357err_dma_tx_ring_bufs_alloc:
1358 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1359 return err;
1360}
1361
1362static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port)
1363{
1364 struct rocker *rocker = rocker_port->rocker;
1365
534ba6a8 1366 rocker_dma_rx_ring_skbs_free(rocker_port);
4b8ac966
JP		 1367 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1368 PCI_DMA_BIDIRECTIONAL);
1369 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1370 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1371 PCI_DMA_TODEVICE);
1372 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1373}
1374
e5054643
SH		 1375static void rocker_port_set_enable(const struct rocker_port *rocker_port,
1376 bool enable)
4b8ac966
JP		 1377{
1378 u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);
1379
1380 if (enable)
71a83a6d 1381 val |= 1ULL << rocker_port->pport;
4b8ac966 1382 else
71a83a6d 1383 val &= ~(1ULL << rocker_port->pport);
4b8ac966
JP		 1384 rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
1385}
1386
1387/********************************
1388 * Interrupt handler and helpers
1389 ********************************/
1390
1391static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id)
1392{
1393 struct rocker *rocker = dev_id;
e5054643 1394 const struct rocker_desc_info *desc_info;
4b8ac966
JP		 1395 struct rocker_wait *wait;
1396 u32 credits = 0;
1397
1398 spin_lock(&rocker->cmd_ring_lock);
1399 while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) {
1400 wait = rocker_desc_cookie_ptr_get(desc_info);
179f9a25
SF		 1401 if (wait->nowait) {
1402 rocker_desc_gen_clear(desc_info);
1403 rocker_wait_destroy(SWITCHDEV_TRANS_NONE, wait);
1404 } else {
1405 rocker_wait_wake_up(wait);
1406 }
4b8ac966
JP		 1407 credits++;
1408 }
1409 spin_unlock(&rocker->cmd_ring_lock);
1410 rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits);
1411
1412 return IRQ_HANDLED;
1413}
1414
e5054643 1415static void rocker_port_link_up(const struct rocker_port *rocker_port)
4b8ac966
JP		 1416{
1417 netif_carrier_on(rocker_port->dev);
1418 netdev_info(rocker_port->dev, "Link is up\n");
1419}
1420
e5054643 1421static void rocker_port_link_down(const struct rocker_port *rocker_port)
4b8ac966
JP		 1422{
1423 netif_carrier_off(rocker_port->dev);
1424 netdev_info(rocker_port->dev, "Link is down\n");
1425}
1426
e5054643 1427static int rocker_event_link_change(const struct rocker *rocker,
4b8ac966
JP		 1428 const struct rocker_tlv *info)
1429{
e5054643 1430 const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1];
4b8ac966
JP		 1431 unsigned int port_number;
1432 bool link_up;
1433 struct rocker_port *rocker_port;
1434
1435 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info);
4a6bb6d3 1436 if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] ||
4b8ac966
JP		 1437 !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP])
1438 return -EIO;
1439 port_number =
4a6bb6d3 1440 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1;
4b8ac966
JP		 1441 link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]);
1442
1443 if (port_number >= rocker->port_count)
1444 return -EINVAL;
1445
1446 rocker_port = rocker->ports[port_number];
1447 if (netif_carrier_ok(rocker_port->dev) != link_up) {
1448 if (link_up)
1449 rocker_port_link_up(rocker_port);
1450 else
1451 rocker_port_link_down(rocker_port);
1452 }
1453
1454 return 0;
1455}
1456
6c707945 1457static int rocker_port_fdb(struct rocker_port *rocker_port,
c4f20321 1458 enum switchdev_trans trans,
6c707945
SF		 1459 const unsigned char *addr,
1460 __be16 vlan_id, int flags);
1461
c4f20321
SF		 1462struct rocker_mac_vlan_seen_work {
1463 struct work_struct work;
1464 struct rocker_port *rocker_port;
1465 int flags;
1466 unsigned char addr[ETH_ALEN];
1467 __be16 vlan_id;
1468};
1469
1470static void rocker_event_mac_vlan_seen_work(struct work_struct *work)
1471{
e5054643 1472 const struct rocker_mac_vlan_seen_work *sw =
c4f20321
SF		 1473 container_of(work, struct rocker_mac_vlan_seen_work, work);
1474
1475 rtnl_lock();
1476 rocker_port_fdb(sw->rocker_port, SWITCHDEV_TRANS_NONE,
1477 sw->addr, sw->vlan_id, sw->flags);
1478 rtnl_unlock();
1479
1480 kfree(work);
1481}
1482
e5054643 1483static int rocker_event_mac_vlan_seen(const struct rocker *rocker,
6c707945
SF		 1484 const struct rocker_tlv *info)
1485{
c4f20321 1486 struct rocker_mac_vlan_seen_work *sw;
e5054643 1487 const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1];
6c707945
SF		 1488 unsigned int port_number;
1489 struct rocker_port *rocker_port;
e5054643 1490 const unsigned char *addr;
c4f20321 1491 int flags = ROCKER_OP_FLAG_LEARNED;
6c707945
SF		 1492 __be16 vlan_id;
1493
1494 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info);
4a6bb6d3 1495 if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] ||
6c707945
SF		 1496 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] ||
1497 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID])
1498 return -EIO;
1499 port_number =
4a6bb6d3 1500 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1;
6c707945 1501 addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]);
9b03c71f 1502 vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]);
6c707945
SF		 1503
1504 if (port_number >= rocker->port_count)
1505 return -EINVAL;
1506
1507 rocker_port = rocker->ports[port_number];
1508
1509 if (rocker_port->stp_state != BR_STATE_LEARNING &&
1510 rocker_port->stp_state != BR_STATE_FORWARDING)
1511 return 0;
1512
c4f20321
SF		 1513 sw = kmalloc(sizeof(*sw), GFP_ATOMIC);
1514 if (!sw)
1515 return -ENOMEM;
1516
1517 INIT_WORK(&sw->work, rocker_event_mac_vlan_seen_work);
1518
1519 sw->rocker_port = rocker_port;
1520 sw->flags = flags;
1521 ether_addr_copy(sw->addr, addr);
1522 sw->vlan_id = vlan_id;
1523
1524 schedule_work(&sw->work);
1525
1526 return 0;
6c707945 1527}
9f6bbf7c 1528
e5054643
SH		 1529static int rocker_event_process(const struct rocker *rocker,
1530 const struct rocker_desc_info *desc_info)
4b8ac966 1531{
e5054643
SH		 1532 const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1];
1533 const struct rocker_tlv *info;
4b8ac966
JP		 1534 u16 type;
1535
1536 rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info);
1537 if (!attrs[ROCKER_TLV_EVENT_TYPE] ||
1538 !attrs[ROCKER_TLV_EVENT_INFO])
1539 return -EIO;
1540
1541 type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]);
1542 info = attrs[ROCKER_TLV_EVENT_INFO];
1543
1544 switch (type) {
1545 case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED:
1546 return rocker_event_link_change(rocker, info);
6c707945
SF		 1547 case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN:
1548 return rocker_event_mac_vlan_seen(rocker, info);
4b8ac966
JP		 1549 }
1550
1551 return -EOPNOTSUPP;
1552}
1553
1554static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id)
1555{
1556 struct rocker *rocker = dev_id;
e5054643
SH		 1557 const struct pci_dev *pdev = rocker->pdev;
1558 const struct rocker_desc_info *desc_info;
4b8ac966
JP		 1559 u32 credits = 0;
1560 int err;
1561
1562 while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) {
1563 err = rocker_desc_err(desc_info);
1564 if (err) {
1565 dev_err(&pdev->dev, "event desc received with err %d\n",
1566 err);
1567 } else {
1568 err = rocker_event_process(rocker, desc_info);
1569 if (err)
1570 dev_err(&pdev->dev, "event processing failed with err %d\n",
1571 err);
1572 }
1573 rocker_desc_gen_clear(desc_info);
1574 rocker_desc_head_set(rocker, &rocker->event_ring, desc_info);
1575 credits++;
1576 }
1577 rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits);
1578
1579 return IRQ_HANDLED;
1580}
1581
1582static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id)
1583{
1584 struct rocker_port *rocker_port = dev_id;
1585
1586 napi_schedule(&rocker_port->napi_tx);
1587 return IRQ_HANDLED;
1588}
1589
1590static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id)
1591{
1592 struct rocker_port *rocker_port = dev_id;
1593
1594 napi_schedule(&rocker_port->napi_rx);
1595 return IRQ_HANDLED;
1596}
1597
1598/********************
1599 * Command interface
1600 ********************/
1601
534ba6a8 1602typedef int (*rocker_cmd_prep_cb_t)(const struct rocker_port *rocker_port,
e5054643
SH		 1603 struct rocker_desc_info *desc_info,
1604 void *priv);
1605
534ba6a8 1606typedef int (*rocker_cmd_proc_cb_t)(const struct rocker_port *rocker_port,
e5054643
SH		 1607 const struct rocker_desc_info *desc_info,
1608 void *priv);
4b8ac966 1609
534ba6a8 1610static int rocker_cmd_exec(struct rocker_port *rocker_port,
179f9a25 1611 enum switchdev_trans trans, int flags,
e5054643
SH		 1612 rocker_cmd_prep_cb_t prepare, void *prepare_priv,
1613 rocker_cmd_proc_cb_t process, void *process_priv)
4b8ac966 1614{
534ba6a8 1615 struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 1616 struct rocker_desc_info *desc_info;
1617 struct rocker_wait *wait;
179f9a25
SF		 1618 bool nowait = !!(flags & ROCKER_OP_FLAG_NOWAIT);
1619 unsigned long lock_flags;
4b8ac966
JP		 1620 int err;
1621
179f9a25 1622 wait = rocker_wait_create(rocker_port, trans, flags);
4b8ac966
JP		 1623 if (!wait)
1624 return -ENOMEM;
179f9a25 1625 wait->nowait = nowait;
4b8ac966 1626
179f9a25 1627 spin_lock_irqsave(&rocker->cmd_ring_lock, lock_flags);
c4f20321 1628
4b8ac966
JP		 1629 desc_info = rocker_desc_head_get(&rocker->cmd_ring);
1630 if (!desc_info) {
179f9a25 1631 spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);
4b8ac966
JP		 1632 err = -EAGAIN;
1633 goto out;
1634 }
c4f20321 1635
534ba6a8 1636 err = prepare(rocker_port, desc_info, prepare_priv);
4b8ac966 1637 if (err) {
179f9a25 1638 spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);
4b8ac966
JP		 1639 goto out;
1640 }
c4f20321 1641
4b8ac966 1642 rocker_desc_cookie_ptr_set(desc_info, wait);
4b8ac966 1643
c4f20321
SF		 1644 if (trans != SWITCHDEV_TRANS_PREPARE)
1645 rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);
4b8ac966 1646
179f9a25
SF		 1647 spin_unlock_irqrestore(&rocker->cmd_ring_lock, lock_flags);
1648
1649 if (nowait)
1650 return 0;
c4f20321
SF		 1651
1652 if (trans != SWITCHDEV_TRANS_PREPARE)
1653 if (!rocker_wait_event_timeout(wait, HZ / 10))
1654 return -EIO;
4b8ac966
JP		 1655
1656 err = rocker_desc_err(desc_info);
1657 if (err)
1658 return err;
1659
1660 if (process)
534ba6a8 1661 err = process(rocker_port, desc_info, process_priv);
4b8ac966
JP		 1662
1663 rocker_desc_gen_clear(desc_info);
1664out:
0985df73 1665 rocker_wait_destroy(trans, wait);
4b8ac966
JP		 1666 return err;
1667}
1668
1669static int
534ba6a8 1670rocker_cmd_get_port_settings_prep(const struct rocker_port *rocker_port,
4b8ac966
JP		 1671 struct rocker_desc_info *desc_info,
1672 void *priv)
1673{
1674 struct rocker_tlv *cmd_info;
1675
1676 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1677 ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS))
1678 return -EMSGSIZE;
1679 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1680 if (!cmd_info)
1681 return -EMSGSIZE;
4a6bb6d3
SF		 1682 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1683 rocker_port->pport))
4b8ac966
JP		 1684 return -EMSGSIZE;
1685 rocker_tlv_nest_end(desc_info, cmd_info);
1686 return 0;
1687}
1688
1689static int
534ba6a8 1690rocker_cmd_get_port_settings_ethtool_proc(const struct rocker_port *rocker_port,
e5054643 1691 const struct rocker_desc_info *desc_info,
4b8ac966
JP		 1692 void *priv)
1693{
1694 struct ethtool_cmd *ecmd = priv;
e5054643
SH		 1695 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1696 const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
4b8ac966
JP		 1697 u32 speed;
1698 u8 duplex;
1699 u8 autoneg;
1700
1701 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1702 if (!attrs[ROCKER_TLV_CMD_INFO])
1703 return -EIO;
1704
1705 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1706 attrs[ROCKER_TLV_CMD_INFO]);
1707 if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] ||
1708 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] ||
1709 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG])
1710 return -EIO;
1711
1712 speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]);
1713 duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]);
1714 autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]);
1715
1716 ecmd->transceiver = XCVR_INTERNAL;
1717 ecmd->supported = SUPPORTED_TP;
1718 ecmd->phy_address = 0xff;
1719 ecmd->port = PORT_TP;
1720 ethtool_cmd_speed_set(ecmd, speed);
1721 ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF;
1722 ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
1723
1724 return 0;
1725}
1726
1727static int
534ba6a8 1728rocker_cmd_get_port_settings_macaddr_proc(const struct rocker_port *rocker_port,
e5054643 1729 const struct rocker_desc_info *desc_info,
4b8ac966
JP		 1730 void *priv)
1731{
1732 unsigned char *macaddr = priv;
e5054643
SH		 1733 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1734 const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1735 const struct rocker_tlv *attr;
4b8ac966
JP		 1736
1737 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1738 if (!attrs[ROCKER_TLV_CMD_INFO])
1739 return -EIO;
1740
1741 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1742 attrs[ROCKER_TLV_CMD_INFO]);
1743 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR];
1744 if (!attr)
1745 return -EIO;
1746
1747 if (rocker_tlv_len(attr) != ETH_ALEN)
1748 return -EINVAL;
1749
1750 ether_addr_copy(macaddr, rocker_tlv_data(attr));
1751 return 0;
1752}
1753
db19170b
DA		 1754struct port_name {
1755 char *buf;
1756 size_t len;
1757};
1758
1759static int
534ba6a8 1760rocker_cmd_get_port_settings_phys_name_proc(const struct rocker_port *rocker_port,
e5054643 1761 const struct rocker_desc_info *desc_info,
db19170b
DA		 1762 void *priv)
1763{
e5054643
SH		 1764 const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1765 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
db19170b 1766 struct port_name *name = priv;
e5054643 1767 const struct rocker_tlv *attr;
db19170b 1768 size_t i, j, len;
e5054643 1769 const char *str;
db19170b
DA		 1770
1771 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1772 if (!attrs[ROCKER_TLV_CMD_INFO])
1773 return -EIO;
1774
1775 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1776 attrs[ROCKER_TLV_CMD_INFO]);
1777 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME];
1778 if (!attr)
1779 return -EIO;
1780
1781 len = min_t(size_t, rocker_tlv_len(attr), name->len);
1782 str = rocker_tlv_data(attr);
1783
1784 /* make sure name only contains alphanumeric characters */
1785 for (i = j = 0; i < len; ++i) {
1786 if (isalnum(str[i])) {
1787 name->buf[j] = str[i];
1788 j++;
1789 }
1790 }
1791
1792 if (j == 0)
1793 return -EIO;
1794
1795 name->buf[j] = '\0';
1796
1797 return 0;
1798}
1799
4b8ac966 1800static int
534ba6a8 1801rocker_cmd_set_port_settings_ethtool_prep(const struct rocker_port *rocker_port,
4b8ac966
JP		 1802 struct rocker_desc_info *desc_info,
1803 void *priv)
1804{
1805 struct ethtool_cmd *ecmd = priv;
1806 struct rocker_tlv *cmd_info;
1807
1808 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1809 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1810 return -EMSGSIZE;
1811 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1812 if (!cmd_info)
1813 return -EMSGSIZE;
4a6bb6d3
SF		 1814 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1815 rocker_port->pport))
4b8ac966
JP		 1816 return -EMSGSIZE;
1817 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED,
1818 ethtool_cmd_speed(ecmd)))
1819 return -EMSGSIZE;
1820 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,
1821 ecmd->duplex))
1822 return -EMSGSIZE;
1823 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG,
1824 ecmd->autoneg))
1825 return -EMSGSIZE;
1826 rocker_tlv_nest_end(desc_info, cmd_info);
1827 return 0;
1828}
1829
1830static int
534ba6a8 1831rocker_cmd_set_port_settings_macaddr_prep(const struct rocker_port *rocker_port,
4b8ac966
JP		 1832 struct rocker_desc_info *desc_info,
1833 void *priv)
1834{
e5054643 1835 const unsigned char *macaddr = priv;
4b8ac966
JP		 1836 struct rocker_tlv *cmd_info;
1837
1838 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1839 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1840 return -EMSGSIZE;
1841 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1842 if (!cmd_info)
1843 return -EMSGSIZE;
4a6bb6d3
SF		 1844 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1845 rocker_port->pport))
4b8ac966
JP		 1846 return -EMSGSIZE;
1847 if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR,
1848 ETH_ALEN, macaddr))
1849 return -EMSGSIZE;
1850 rocker_tlv_nest_end(desc_info, cmd_info);
1851 return 0;
1852}
1853
5111f80c 1854static int
534ba6a8 1855rocker_cmd_set_port_learning_prep(const struct rocker_port *rocker_port,
5111f80c
SF		 1856 struct rocker_desc_info *desc_info,
1857 void *priv)
1858{
1859 struct rocker_tlv *cmd_info;
1860
1861 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1862 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1863 return -EMSGSIZE;
1864 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1865 if (!cmd_info)
1866 return -EMSGSIZE;
4a6bb6d3
SF		 1867 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1868 rocker_port->pport))
5111f80c
SF		 1869 return -EMSGSIZE;
1870 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING,
1871 !!(rocker_port->brport_flags & BR_LEARNING)))
1872 return -EMSGSIZE;
1873 rocker_tlv_nest_end(desc_info, cmd_info);
1874 return 0;
1875}
1876
4b8ac966
JP		 1877static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
1878 struct ethtool_cmd *ecmd)
1879{
179f9a25 1880 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
4b8ac966
JP		 1881 rocker_cmd_get_port_settings_prep, NULL,
1882 rocker_cmd_get_port_settings_ethtool_proc,
c4f20321 1883 ecmd);
4b8ac966
JP		 1884}
1885
1886static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
1887 unsigned char *macaddr)
1888{
179f9a25 1889 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
4b8ac966
JP		 1890 rocker_cmd_get_port_settings_prep, NULL,
1891 rocker_cmd_get_port_settings_macaddr_proc,
c4f20321 1892 macaddr);
4b8ac966
JP		 1893}
1894
1895static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
1896 struct ethtool_cmd *ecmd)
1897{
179f9a25 1898 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
4b8ac966 1899 rocker_cmd_set_port_settings_ethtool_prep,
c4f20321 1900 ecmd, NULL, NULL);
4b8ac966
JP		 1901}
1902
1903static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
1904 unsigned char *macaddr)
1905{
179f9a25 1906 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
4b8ac966 1907 rocker_cmd_set_port_settings_macaddr_prep,
c4f20321 1908 macaddr, NULL, NULL);
4b8ac966
JP		 1909}
1910
c4f20321
SF		 1911static int rocker_port_set_learning(struct rocker_port *rocker_port,
1912 enum switchdev_trans trans)
5111f80c 1913{
179f9a25 1914 return rocker_cmd_exec(rocker_port, trans, 0,
5111f80c 1915 rocker_cmd_set_port_learning_prep,
c4f20321 1916 NULL, NULL, NULL);
5111f80c
SF		 1917}
1918
e5054643
SH		 1919static int
1920rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info,
1921 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 1922{
4a6bb6d3
SF		 1923 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1924 entry->key.ig_port.in_pport))
9f6bbf7c 1925 return -EMSGSIZE;
4a6bb6d3
SF		 1926 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1927 entry->key.ig_port.in_pport_mask))
9f6bbf7c
SF		 1928 return -EMSGSIZE;
1929 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1930 entry->key.ig_port.goto_tbl))
1931 return -EMSGSIZE;
1932
1933 return 0;
1934}
1935
e5054643
SH		 1936static int
1937rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info,
1938 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 1939{
4a6bb6d3
SF		 1940 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1941 entry->key.vlan.in_pport))
9f6bbf7c 1942 return -EMSGSIZE;
9b03c71f
JP		 1943 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1944 entry->key.vlan.vlan_id))
9f6bbf7c 1945 return -EMSGSIZE;
9b03c71f
JP		 1946 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1947 entry->key.vlan.vlan_id_mask))
9f6bbf7c
SF		 1948 return -EMSGSIZE;
1949 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1950 entry->key.vlan.goto_tbl))
1951 return -EMSGSIZE;
1952 if (entry->key.vlan.untagged &&
9b03c71f
JP		 1953 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID,
1954 entry->key.vlan.new_vlan_id))
9f6bbf7c
SF		 1955 return -EMSGSIZE;
1956
1957 return 0;
1958}
1959
e5054643
SH		 1960static int
1961rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info,
1962 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 1963{
4a6bb6d3
SF		 1964 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1965 entry->key.term_mac.in_pport))
9f6bbf7c 1966 return -EMSGSIZE;
4a6bb6d3
SF		 1967 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1968 entry->key.term_mac.in_pport_mask))
9f6bbf7c 1969 return -EMSGSIZE;
9b03c71f
JP		 1970 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1971 entry->key.term_mac.eth_type))
9f6bbf7c
SF		 1972 return -EMSGSIZE;
1973 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1974 ETH_ALEN, entry->key.term_mac.eth_dst))
1975 return -EMSGSIZE;
1976 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1977 ETH_ALEN, entry->key.term_mac.eth_dst_mask))
1978 return -EMSGSIZE;
9b03c71f
JP		 1979 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1980 entry->key.term_mac.vlan_id))
9f6bbf7c 1981 return -EMSGSIZE;
9b03c71f
JP		 1982 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1983 entry->key.term_mac.vlan_id_mask))
9f6bbf7c
SF		 1984 return -EMSGSIZE;
1985 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1986 entry->key.term_mac.goto_tbl))
1987 return -EMSGSIZE;
1988 if (entry->key.term_mac.copy_to_cpu &&
1989 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
1990 entry->key.term_mac.copy_to_cpu))
1991 return -EMSGSIZE;
1992
1993 return 0;
1994}
1995
1996static int
1997rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info,
e5054643 1998 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 1999{
9b03c71f
JP		 2000 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
2001 entry->key.ucast_routing.eth_type))
9f6bbf7c 2002 return -EMSGSIZE;
9b03c71f
JP		 2003 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP,
2004 entry->key.ucast_routing.dst4))
9f6bbf7c 2005 return -EMSGSIZE;
9b03c71f
JP		 2006 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK,
2007 entry->key.ucast_routing.dst4_mask))
9f6bbf7c
SF		 2008 return -EMSGSIZE;
2009 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
2010 entry->key.ucast_routing.goto_tbl))
2011 return -EMSGSIZE;
2012 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2013 entry->key.ucast_routing.group_id))
2014 return -EMSGSIZE;
2015
2016 return 0;
2017}
2018
e5054643
SH		 2019static int
2020rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info,
2021 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c
SF		 2022{
2023 if (entry->key.bridge.has_eth_dst &&
2024 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2025 ETH_ALEN, entry->key.bridge.eth_dst))
2026 return -EMSGSIZE;
2027 if (entry->key.bridge.has_eth_dst_mask &&
2028 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
2029 ETH_ALEN, entry->key.bridge.eth_dst_mask))
2030 return -EMSGSIZE;
2031 if (entry->key.bridge.vlan_id &&
9b03c71f
JP		 2032 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2033 entry->key.bridge.vlan_id))
9f6bbf7c
SF		 2034 return -EMSGSIZE;
2035 if (entry->key.bridge.tunnel_id &&
2036 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID,
2037 entry->key.bridge.tunnel_id))
2038 return -EMSGSIZE;
2039 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
2040 entry->key.bridge.goto_tbl))
2041 return -EMSGSIZE;
2042 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2043 entry->key.bridge.group_id))
2044 return -EMSGSIZE;
2045 if (entry->key.bridge.copy_to_cpu &&
2046 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
2047 entry->key.bridge.copy_to_cpu))
2048 return -EMSGSIZE;
2049
2050 return 0;
2051}
2052
e5054643
SH		 2053static int
2054rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info,
2055 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 2056{
4a6bb6d3
SF		 2057 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
2058 entry->key.acl.in_pport))
9f6bbf7c 2059 return -EMSGSIZE;
4a6bb6d3
SF		 2060 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
2061 entry->key.acl.in_pport_mask))
9f6bbf7c
SF		 2062 return -EMSGSIZE;
2063 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2064 ETH_ALEN, entry->key.acl.eth_src))
2065 return -EMSGSIZE;
2066 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK,
2067 ETH_ALEN, entry->key.acl.eth_src_mask))
2068 return -EMSGSIZE;
2069 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2070 ETH_ALEN, entry->key.acl.eth_dst))
2071 return -EMSGSIZE;
2072 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
2073 ETH_ALEN, entry->key.acl.eth_dst_mask))
2074 return -EMSGSIZE;
9b03c71f
JP		 2075 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
2076 entry->key.acl.eth_type))
9f6bbf7c 2077 return -EMSGSIZE;
9b03c71f
JP		 2078 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2079 entry->key.acl.vlan_id))
9f6bbf7c 2080 return -EMSGSIZE;
9b03c71f
JP		 2081 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
2082 entry->key.acl.vlan_id_mask))
9f6bbf7c
SF		 2083 return -EMSGSIZE;
2084
2085 switch (ntohs(entry->key.acl.eth_type)) {
2086 case ETH_P_IP:
2087 case ETH_P_IPV6:
2088 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO,
2089 entry->key.acl.ip_proto))
2090 return -EMSGSIZE;
2091 if (rocker_tlv_put_u8(desc_info,
2092 ROCKER_TLV_OF_DPA_IP_PROTO_MASK,
2093 entry->key.acl.ip_proto_mask))
2094 return -EMSGSIZE;
2095 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP,
2096 entry->key.acl.ip_tos & 0x3f))
2097 return -EMSGSIZE;
2098 if (rocker_tlv_put_u8(desc_info,
2099 ROCKER_TLV_OF_DPA_IP_DSCP_MASK,
2100 entry->key.acl.ip_tos_mask & 0x3f))
2101 return -EMSGSIZE;
2102 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN,
2103 (entry->key.acl.ip_tos & 0xc0) >> 6))
2104 return -EMSGSIZE;
2105 if (rocker_tlv_put_u8(desc_info,
2106 ROCKER_TLV_OF_DPA_IP_ECN_MASK,
2107 (entry->key.acl.ip_tos_mask & 0xc0) >> 6))
2108 return -EMSGSIZE;
2109 break;
2110 }
2111
2112 if (entry->key.acl.group_id != ROCKER_GROUP_NONE &&
2113 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2114 entry->key.acl.group_id))
2115 return -EMSGSIZE;
2116
2117 return 0;
2118}
2119
534ba6a8 2120static int rocker_cmd_flow_tbl_add(const struct rocker_port *rocker_port,
9f6bbf7c
SF		 2121 struct rocker_desc_info *desc_info,
2122 void *priv)
2123{
e5054643 2124 const struct rocker_flow_tbl_entry *entry = priv;
9f6bbf7c
SF		 2125 struct rocker_tlv *cmd_info;
2126 int err = 0;
2127
c1beeef7 2128 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
9f6bbf7c
SF		 2129 return -EMSGSIZE;
2130 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2131 if (!cmd_info)
2132 return -EMSGSIZE;
2133 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID,
2134 entry->key.tbl_id))
2135 return -EMSGSIZE;
2136 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY,
2137 entry->key.priority))
2138 return -EMSGSIZE;
2139 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0))
2140 return -EMSGSIZE;
2141 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2142 entry->cookie))
2143 return -EMSGSIZE;
2144
2145 switch (entry->key.tbl_id) {
2146 case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT:
2147 err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry);
2148 break;
2149 case ROCKER_OF_DPA_TABLE_ID_VLAN:
2150 err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry);
2151 break;
2152 case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC:
2153 err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry);
2154 break;
2155 case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING:
2156 err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry);
2157 break;
2158 case ROCKER_OF_DPA_TABLE_ID_BRIDGING:
2159 err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry);
2160 break;
2161 case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY:
2162 err = rocker_cmd_flow_tbl_add_acl(desc_info, entry);
2163 break;
2164 default:
2165 err = -ENOTSUPP;
2166 break;
2167 }
2168
2169 if (err)
2170 return err;
2171
2172 rocker_tlv_nest_end(desc_info, cmd_info);
2173
2174 return 0;
2175}
2176
534ba6a8 2177static int rocker_cmd_flow_tbl_del(const struct rocker_port *rocker_port,
9f6bbf7c
SF		 2178 struct rocker_desc_info *desc_info,
2179 void *priv)
2180{
2181 const struct rocker_flow_tbl_entry *entry = priv;
2182 struct rocker_tlv *cmd_info;
2183
c1beeef7 2184 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
9f6bbf7c
SF		 2185 return -EMSGSIZE;
2186 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2187 if (!cmd_info)
2188 return -EMSGSIZE;
2189 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2190 entry->cookie))
2191 return -EMSGSIZE;
2192 rocker_tlv_nest_end(desc_info, cmd_info);
2193
2194 return 0;
2195}
2196
2197static int
2198rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info,
2199 struct rocker_group_tbl_entry *entry)
2200{
4a6bb6d3 2201 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT,
9f6bbf7c
SF		 2202 ROCKER_GROUP_PORT_GET(entry->group_id)))
2203 return -EMSGSIZE;
2204 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN,
2205 entry->l2_interface.pop_vlan))
2206 return -EMSGSIZE;
2207
2208 return 0;
2209}
2210
2211static int
2212rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info,
e5054643 2213 const struct rocker_group_tbl_entry *entry)
9f6bbf7c
SF		 2214{
2215 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2216 entry->l2_rewrite.group_id))
2217 return -EMSGSIZE;
2218 if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) &&
2219 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2220 ETH_ALEN, entry->l2_rewrite.eth_src))
2221 return -EMSGSIZE;
2222 if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) &&
2223 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2224 ETH_ALEN, entry->l2_rewrite.eth_dst))
2225 return -EMSGSIZE;
2226 if (entry->l2_rewrite.vlan_id &&
9b03c71f
JP		 2227 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2228 entry->l2_rewrite.vlan_id))
9f6bbf7c
SF		 2229 return -EMSGSIZE;
2230
2231 return 0;
2232}
2233
2234static int
2235rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info,
e5054643 2236 const struct rocker_group_tbl_entry *entry)
9f6bbf7c
SF		 2237{
2238 int i;
2239 struct rocker_tlv *group_ids;
2240
2241 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT,
2242 entry->group_count))
2243 return -EMSGSIZE;
2244
2245 group_ids = rocker_tlv_nest_start(desc_info,
2246 ROCKER_TLV_OF_DPA_GROUP_IDS);
2247 if (!group_ids)
2248 return -EMSGSIZE;
2249
2250 for (i = 0; i < entry->group_count; i++)
2251 /* Note TLV array is 1-based */
2252 if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i]))
2253 return -EMSGSIZE;
2254
2255 rocker_tlv_nest_end(desc_info, group_ids);
2256
2257 return 0;
2258}
2259
2260static int
2261rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info,
e5054643 2262 const struct rocker_group_tbl_entry *entry)
9f6bbf7c
SF		 2263{
2264 if (!is_zero_ether_addr(entry->l3_unicast.eth_src) &&
2265 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2266 ETH_ALEN, entry->l3_unicast.eth_src))
2267 return -EMSGSIZE;
2268 if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) &&
2269 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2270 ETH_ALEN, entry->l3_unicast.eth_dst))
2271 return -EMSGSIZE;
2272 if (entry->l3_unicast.vlan_id &&
9b03c71f
JP		 2273 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2274 entry->l3_unicast.vlan_id))
9f6bbf7c
SF		 2275 return -EMSGSIZE;
2276 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK,
2277 entry->l3_unicast.ttl_check))
2278 return -EMSGSIZE;
2279 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2280 entry->l3_unicast.group_id))
2281 return -EMSGSIZE;
2282
2283 return 0;
2284}
2285
534ba6a8 2286static int rocker_cmd_group_tbl_add(const struct rocker_port *rocker_port,
9f6bbf7c
SF		 2287 struct rocker_desc_info *desc_info,
2288 void *priv)
2289{
2290 struct rocker_group_tbl_entry *entry = priv;
2291 struct rocker_tlv *cmd_info;
2292 int err = 0;
2293
2294 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2295 return -EMSGSIZE;
2296 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2297 if (!cmd_info)
2298 return -EMSGSIZE;
2299
2300 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2301 entry->group_id))
2302 return -EMSGSIZE;
2303
2304 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2305 case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE:
2306 err = rocker_cmd_group_tbl_add_l2_interface(desc_info, entry);
2307 break;
2308 case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE:
2309 err = rocker_cmd_group_tbl_add_l2_rewrite(desc_info, entry);
2310 break;
2311 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2312 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
2313 err = rocker_cmd_group_tbl_add_group_ids(desc_info, entry);
2314 break;
2315 case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST:
2316 err = rocker_cmd_group_tbl_add_l3_unicast(desc_info, entry);
2317 break;
2318 default:
2319 err = -ENOTSUPP;
2320 break;
2321 }
2322
2323 if (err)
2324 return err;
2325
2326 rocker_tlv_nest_end(desc_info, cmd_info);
2327
2328 return 0;
2329}
2330
534ba6a8 2331static int rocker_cmd_group_tbl_del(const struct rocker_port *rocker_port,
9f6bbf7c
SF		 2332 struct rocker_desc_info *desc_info,
2333 void *priv)
2334{
2335 const struct rocker_group_tbl_entry *entry = priv;
2336 struct rocker_tlv *cmd_info;
2337
2338 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2339 return -EMSGSIZE;
2340 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2341 if (!cmd_info)
2342 return -EMSGSIZE;
2343 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2344 entry->group_id))
2345 return -EMSGSIZE;
2346 rocker_tlv_nest_end(desc_info, cmd_info);
2347
2348 return 0;
2349}
2350
c1beeef7
SF		 2351/***************************************************
2352 * Flow, group, FDB, internal VLAN and neigh tables
2353 ***************************************************/
9f6bbf7c
SF		 2354
2355static int rocker_init_tbls(struct rocker *rocker)
2356{
2357 hash_init(rocker->flow_tbl);
2358 spin_lock_init(&rocker->flow_tbl_lock);
2359
2360 hash_init(rocker->group_tbl);
2361 spin_lock_init(&rocker->group_tbl_lock);
2362
2363 hash_init(rocker->fdb_tbl);
2364 spin_lock_init(&rocker->fdb_tbl_lock);
2365
2366 hash_init(rocker->internal_vlan_tbl);
2367 spin_lock_init(&rocker->internal_vlan_tbl_lock);
2368
c1beeef7
SF		 2369 hash_init(rocker->neigh_tbl);
2370 spin_lock_init(&rocker->neigh_tbl_lock);
2371
9f6bbf7c
SF		 2372 return 0;
2373}
2374
2375static void rocker_free_tbls(struct rocker *rocker)
2376{
2377 unsigned long flags;
2378 struct rocker_flow_tbl_entry *flow_entry;
2379 struct rocker_group_tbl_entry *group_entry;
2380 struct rocker_fdb_tbl_entry *fdb_entry;
2381 struct rocker_internal_vlan_tbl_entry *internal_vlan_entry;
c1beeef7 2382 struct rocker_neigh_tbl_entry *neigh_entry;
9f6bbf7c
SF		 2383 struct hlist_node *tmp;
2384 int bkt;
2385
2386 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2387 hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry)
2388 hash_del(&flow_entry->entry);
2389 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2390
2391 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2392 hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry)
2393 hash_del(&group_entry->entry);
2394 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2395
2396 spin_lock_irqsave(&rocker->fdb_tbl_lock, flags);
2397 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry)
2398 hash_del(&fdb_entry->entry);
2399 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags);
2400
2401 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags);
2402 hash_for_each_safe(rocker->internal_vlan_tbl, bkt,
2403 tmp, internal_vlan_entry, entry)
2404 hash_del(&internal_vlan_entry->entry);
2405 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags);
c1beeef7
SF		 2406
2407 spin_lock_irqsave(&rocker->neigh_tbl_lock, flags);
2408 hash_for_each_safe(rocker->neigh_tbl, bkt, tmp, neigh_entry, entry)
2409 hash_del(&neigh_entry->entry);
2410 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, flags);
9f6bbf7c
SF		 2411}
2412
2413static struct rocker_flow_tbl_entry *
e5054643
SH		 2414rocker_flow_tbl_find(const struct rocker *rocker,
2415 const struct rocker_flow_tbl_entry *match)
9f6bbf7c
SF		 2416{
2417 struct rocker_flow_tbl_entry *found;
c1beeef7 2418 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
9f6bbf7c
SF		 2419
2420 hash_for_each_possible(rocker->flow_tbl, found,
2421 entry, match->key_crc32) {
c1beeef7 2422 if (memcmp(&found->key, &match->key, key_len) == 0)
9f6bbf7c
SF		 2423 return found;
2424 }
2425
2426 return NULL;
2427}
2428
2429static int rocker_flow_tbl_add(struct rocker_port *rocker_port,
179f9a25 2430 enum switchdev_trans trans, int flags,
c4f20321 2431 struct rocker_flow_tbl_entry *match)
9f6bbf7c
SF		 2432{
2433 struct rocker *rocker = rocker_port->rocker;
2434 struct rocker_flow_tbl_entry *found;
c1beeef7 2435 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
179f9a25 2436 unsigned long lock_flags;
9f6bbf7c 2437
c1beeef7 2438 match->key_crc32 = crc32(~0, &match->key, key_len);
9f6bbf7c 2439
179f9a25 2440 spin_lock_irqsave(&rocker->flow_tbl_lock, lock_flags);
9f6bbf7c
SF		 2441
2442 found = rocker_flow_tbl_find(rocker, match);
2443
2444 if (found) {
c1beeef7 2445 match->cookie = found->cookie;
c4f20321
SF		 2446 if (trans != SWITCHDEV_TRANS_PREPARE)
2447 hash_del(&found->entry);
0985df73 2448 rocker_port_kfree(trans, found);
c1beeef7
SF		 2449 found = match;
2450 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD;
9f6bbf7c
SF		 2451 } else {
2452 found = match;
2453 found->cookie = rocker->flow_tbl_next_cookie++;
c1beeef7 2454 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD;
9f6bbf7c
SF		 2455 }
2456
c4f20321
SF		 2457 if (trans != SWITCHDEV_TRANS_PREPARE)
2458 hash_add(rocker->flow_tbl, &found->entry, found->key_crc32);
9f6bbf7c 2459
179f9a25 2460 spin_unlock_irqrestore(&rocker->flow_tbl_lock, lock_flags);
9f6bbf7c 2461
179f9a25
SF		 2462 return rocker_cmd_exec(rocker_port, trans, flags,
2463 rocker_cmd_flow_tbl_add, found, NULL, NULL);
9f6bbf7c
SF		 2464}
2465
2466static int rocker_flow_tbl_del(struct rocker_port *rocker_port,
179f9a25 2467 enum switchdev_trans trans, int flags,
c4f20321 2468 struct rocker_flow_tbl_entry *match)
9f6bbf7c
SF		 2469{
2470 struct rocker *rocker = rocker_port->rocker;
2471 struct rocker_flow_tbl_entry *found;
c1beeef7 2472 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
179f9a25 2473 unsigned long lock_flags;
9f6bbf7c
SF		 2474 int err = 0;
2475
c1beeef7 2476 match->key_crc32 = crc32(~0, &match->key, key_len);
9f6bbf7c 2477
179f9a25 2478 spin_lock_irqsave(&rocker->flow_tbl_lock, lock_flags);
9f6bbf7c
SF		 2479
2480 found = rocker_flow_tbl_find(rocker, match);
2481
2482 if (found) {
c4f20321
SF		 2483 if (trans != SWITCHDEV_TRANS_PREPARE)
2484 hash_del(&found->entry);
c1beeef7 2485 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL;
9f6bbf7c
SF		 2486 }
2487
179f9a25 2488 spin_unlock_irqrestore(&rocker->flow_tbl_lock, lock_flags);
9f6bbf7c 2489
0985df73 2490 rocker_port_kfree(trans, match);
9f6bbf7c 2491
c1beeef7 2492 if (found) {
179f9a25 2493 err = rocker_cmd_exec(rocker_port, trans, flags,
9f6bbf7c 2494 rocker_cmd_flow_tbl_del,
c4f20321 2495 found, NULL, NULL);
0985df73 2496 rocker_port_kfree(trans, found);
9f6bbf7c
SF		 2497 }
2498
2499 return err;
2500}
2501
9f6bbf7c 2502static int rocker_flow_tbl_do(struct rocker_port *rocker_port,
c4f20321
SF		 2503 enum switchdev_trans trans, int flags,
2504 struct rocker_flow_tbl_entry *entry)
9f6bbf7c 2505{
9f6bbf7c 2506 if (flags & ROCKER_OP_FLAG_REMOVE)
179f9a25 2507 return rocker_flow_tbl_del(rocker_port, trans, flags, entry);
9f6bbf7c 2508 else
179f9a25 2509 return rocker_flow_tbl_add(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2510}
2511
2512static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port,
c4f20321
SF		 2513 enum switchdev_trans trans, int flags,
2514 u32 in_pport, u32 in_pport_mask,
9f6bbf7c
SF		 2515 enum rocker_of_dpa_table_id goto_tbl)
2516{
2517 struct rocker_flow_tbl_entry *entry;
2518
179f9a25 2519 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
9f6bbf7c
SF		 2520 if (!entry)
2521 return -ENOMEM;
2522
2523 entry->key.priority = ROCKER_PRIORITY_IG_PORT;
2524 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT;
4a6bb6d3
SF		 2525 entry->key.ig_port.in_pport = in_pport;
2526 entry->key.ig_port.in_pport_mask = in_pport_mask;
9f6bbf7c
SF		 2527 entry->key.ig_port.goto_tbl = goto_tbl;
2528
c4f20321 2529 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2530}
2531
2532static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port,
c4f20321
SF		 2533 enum switchdev_trans trans, int flags,
2534 u32 in_pport, __be16 vlan_id,
2535 __be16 vlan_id_mask,
9f6bbf7c
SF		 2536 enum rocker_of_dpa_table_id goto_tbl,
2537 bool untagged, __be16 new_vlan_id)
2538{
2539 struct rocker_flow_tbl_entry *entry;
2540
179f9a25 2541 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
9f6bbf7c
SF		 2542 if (!entry)
2543 return -ENOMEM;
2544
2545 entry->key.priority = ROCKER_PRIORITY_VLAN;
2546 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN;
4a6bb6d3 2547 entry->key.vlan.in_pport = in_pport;
9f6bbf7c
SF		 2548 entry->key.vlan.vlan_id = vlan_id;
2549 entry->key.vlan.vlan_id_mask = vlan_id_mask;
2550 entry->key.vlan.goto_tbl = goto_tbl;
2551
2552 entry->key.vlan.untagged = untagged;
2553 entry->key.vlan.new_vlan_id = new_vlan_id;
2554
c4f20321 2555 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2556}
2557
2558static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port,
c4f20321 2559 enum switchdev_trans trans,
4a6bb6d3 2560 u32 in_pport, u32 in_pport_mask,
9f6bbf7c
SF		 2561 __be16 eth_type, const u8 *eth_dst,
2562 const u8 *eth_dst_mask, __be16 vlan_id,
2563 __be16 vlan_id_mask, bool copy_to_cpu,
2564 int flags)
2565{
2566 struct rocker_flow_tbl_entry *entry;
2567
179f9a25 2568 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
9f6bbf7c
SF		 2569 if (!entry)
2570 return -ENOMEM;
2571
2572 if (is_multicast_ether_addr(eth_dst)) {
2573 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST;
2574 entry->key.term_mac.goto_tbl =
2575 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING;
2576 } else {
2577 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST;
2578 entry->key.term_mac.goto_tbl =
2579 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2580 }
2581
2582 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
4a6bb6d3
SF		 2583 entry->key.term_mac.in_pport = in_pport;
2584 entry->key.term_mac.in_pport_mask = in_pport_mask;
9f6bbf7c
SF		 2585 entry->key.term_mac.eth_type = eth_type;
2586 ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst);
2587 ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask);
2588 entry->key.term_mac.vlan_id = vlan_id;
2589 entry->key.term_mac.vlan_id_mask = vlan_id_mask;
2590 entry->key.term_mac.copy_to_cpu = copy_to_cpu;
2591
c4f20321 2592 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2593}
2594
2595static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port,
c4f20321 2596 enum switchdev_trans trans, int flags,
9f6bbf7c
SF		 2597 const u8 *eth_dst, const u8 *eth_dst_mask,
2598 __be16 vlan_id, u32 tunnel_id,
2599 enum rocker_of_dpa_table_id goto_tbl,
2600 u32 group_id, bool copy_to_cpu)
2601{
2602 struct rocker_flow_tbl_entry *entry;
2603 u32 priority;
2604 bool vlan_bridging = !!vlan_id;
2605 bool dflt = !eth_dst || (eth_dst && eth_dst_mask);
2606 bool wild = false;
2607
179f9a25 2608 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
9f6bbf7c
SF		 2609 if (!entry)
2610 return -ENOMEM;
2611
2612 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING;
2613
2614 if (eth_dst) {
2615 entry->key.bridge.has_eth_dst = 1;
2616 ether_addr_copy(entry->key.bridge.eth_dst, eth_dst);
2617 }
2618 if (eth_dst_mask) {
2619 entry->key.bridge.has_eth_dst_mask = 1;
2620 ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask);
629161f6 2621 if (!ether_addr_equal(eth_dst_mask, ff_mac))
9f6bbf7c
SF		 2622 wild = true;
2623 }
2624
2625 priority = ROCKER_PRIORITY_UNKNOWN;
51ace887 2626 if (vlan_bridging && dflt && wild)
9f6bbf7c 2627 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD;
51ace887 2628 else if (vlan_bridging && dflt && !wild)
9f6bbf7c 2629 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT;
51ace887 2630 else if (vlan_bridging && !dflt)
9f6bbf7c 2631 priority = ROCKER_PRIORITY_BRIDGING_VLAN;
51ace887 2632 else if (!vlan_bridging && dflt && wild)
9f6bbf7c 2633 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD;
51ace887 2634 else if (!vlan_bridging && dflt && !wild)
9f6bbf7c 2635 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT;
51ace887 2636 else if (!vlan_bridging && !dflt)
9f6bbf7c
SF		 2637 priority = ROCKER_PRIORITY_BRIDGING_TENANT;
2638
2639 entry->key.priority = priority;
2640 entry->key.bridge.vlan_id = vlan_id;
2641 entry->key.bridge.tunnel_id = tunnel_id;
2642 entry->key.bridge.goto_tbl = goto_tbl;
2643 entry->key.bridge.group_id = group_id;
2644 entry->key.bridge.copy_to_cpu = copy_to_cpu;
2645
c4f20321 2646 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2647}
2648
c1beeef7 2649static int rocker_flow_tbl_ucast4_routing(struct rocker_port *rocker_port,
c4f20321 2650 enum switchdev_trans trans,
c1beeef7
SF		 2651 __be16 eth_type, __be32 dst,
2652 __be32 dst_mask, u32 priority,
2653 enum rocker_of_dpa_table_id goto_tbl,
2654 u32 group_id, int flags)
2655{
2656 struct rocker_flow_tbl_entry *entry;
2657
179f9a25 2658 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
c1beeef7
SF		 2659 if (!entry)
2660 return -ENOMEM;
2661
2662 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2663 entry->key.priority = priority;
2664 entry->key.ucast_routing.eth_type = eth_type;
2665 entry->key.ucast_routing.dst4 = dst;
2666 entry->key.ucast_routing.dst4_mask = dst_mask;
2667 entry->key.ucast_routing.goto_tbl = goto_tbl;
2668 entry->key.ucast_routing.group_id = group_id;
2669 entry->key_len = offsetof(struct rocker_flow_tbl_key,
2670 ucast_routing.group_id);
2671
c4f20321 2672 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
c1beeef7
SF		 2673}
2674
9f6bbf7c 2675static int rocker_flow_tbl_acl(struct rocker_port *rocker_port,
c4f20321
SF		 2676 enum switchdev_trans trans, int flags,
2677 u32 in_pport, u32 in_pport_mask,
9f6bbf7c
SF		 2678 const u8 *eth_src, const u8 *eth_src_mask,
2679 const u8 *eth_dst, const u8 *eth_dst_mask,
c4f20321
SF		 2680 __be16 eth_type, __be16 vlan_id,
2681 __be16 vlan_id_mask, u8 ip_proto,
2682 u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask,
9f6bbf7c
SF		 2683 u32 group_id)
2684{
2685 u32 priority;
2686 struct rocker_flow_tbl_entry *entry;
2687
179f9a25 2688 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
9f6bbf7c
SF		 2689 if (!entry)
2690 return -ENOMEM;
2691
2692 priority = ROCKER_PRIORITY_ACL_NORMAL;
2693 if (eth_dst && eth_dst_mask) {
629161f6 2694 if (ether_addr_equal(eth_dst_mask, mcast_mac))
9f6bbf7c
SF		 2695 priority = ROCKER_PRIORITY_ACL_DFLT;
2696 else if (is_link_local_ether_addr(eth_dst))
2697 priority = ROCKER_PRIORITY_ACL_CTRL;
2698 }
2699
2700 entry->key.priority = priority;
2701 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
4a6bb6d3
SF		 2702 entry->key.acl.in_pport = in_pport;
2703 entry->key.acl.in_pport_mask = in_pport_mask;
9f6bbf7c
SF		 2704
2705 if (eth_src)
2706 ether_addr_copy(entry->key.acl.eth_src, eth_src);
2707 if (eth_src_mask)
2708 ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask);
2709 if (eth_dst)
2710 ether_addr_copy(entry->key.acl.eth_dst, eth_dst);
2711 if (eth_dst_mask)
2712 ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask);
2713
2714 entry->key.acl.eth_type = eth_type;
2715 entry->key.acl.vlan_id = vlan_id;
2716 entry->key.acl.vlan_id_mask = vlan_id_mask;
2717 entry->key.acl.ip_proto = ip_proto;
2718 entry->key.acl.ip_proto_mask = ip_proto_mask;
2719 entry->key.acl.ip_tos = ip_tos;
2720 entry->key.acl.ip_tos_mask = ip_tos_mask;
2721 entry->key.acl.group_id = group_id;
2722
c4f20321 2723 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2724}
2725
2726static struct rocker_group_tbl_entry *
e5054643
SH		 2727rocker_group_tbl_find(const struct rocker *rocker,
2728 const struct rocker_group_tbl_entry *match)
9f6bbf7c
SF		 2729{
2730 struct rocker_group_tbl_entry *found;
2731
2732 hash_for_each_possible(rocker->group_tbl, found,
2733 entry, match->group_id) {
2734 if (found->group_id == match->group_id)
2735 return found;
2736 }
2737
2738 return NULL;
2739}
2740
0985df73 2741static void rocker_group_tbl_entry_free(enum switchdev_trans trans,
c4f20321 2742 struct rocker_group_tbl_entry *entry)
9f6bbf7c
SF		 2743{
2744 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2745 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2746 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
0985df73 2747 rocker_port_kfree(trans, entry->group_ids);
9f6bbf7c
SF		 2748 break;
2749 default:
2750 break;
2751 }
0985df73 2752 rocker_port_kfree(trans, entry);
9f6bbf7c
SF		 2753}
2754
2755static int rocker_group_tbl_add(struct rocker_port *rocker_port,
179f9a25 2756 enum switchdev_trans trans, int flags,
c4f20321 2757 struct rocker_group_tbl_entry *match)
9f6bbf7c
SF		 2758{
2759 struct rocker *rocker = rocker_port->rocker;
2760 struct rocker_group_tbl_entry *found;
179f9a25 2761 unsigned long lock_flags;
9f6bbf7c 2762
179f9a25 2763 spin_lock_irqsave(&rocker->group_tbl_lock, lock_flags);
9f6bbf7c
SF		 2764
2765 found = rocker_group_tbl_find(rocker, match);
2766
2767 if (found) {
c4f20321
SF		 2768 if (trans != SWITCHDEV_TRANS_PREPARE)
2769 hash_del(&found->entry);
0985df73 2770 rocker_group_tbl_entry_free(trans, found);
9f6bbf7c
SF		 2771 found = match;
2772 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD;
2773 } else {
2774 found = match;
2775 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD;
2776 }
2777
c4f20321
SF		 2778 if (trans != SWITCHDEV_TRANS_PREPARE)
2779 hash_add(rocker->group_tbl, &found->entry, found->group_id);
9f6bbf7c 2780
179f9a25 2781 spin_unlock_irqrestore(&rocker->group_tbl_lock, lock_flags);
9f6bbf7c 2782
179f9a25
SF		 2783 return rocker_cmd_exec(rocker_port, trans, flags,
2784 rocker_cmd_group_tbl_add, found, NULL, NULL);
9f6bbf7c
SF		 2785}
2786
2787static int rocker_group_tbl_del(struct rocker_port *rocker_port,
179f9a25 2788 enum switchdev_trans trans, int flags,
c4f20321 2789 struct rocker_group_tbl_entry *match)
9f6bbf7c
SF		 2790{
2791 struct rocker *rocker = rocker_port->rocker;
2792 struct rocker_group_tbl_entry *found;
179f9a25 2793 unsigned long lock_flags;
9f6bbf7c
SF		 2794 int err = 0;
2795
179f9a25 2796 spin_lock_irqsave(&rocker->group_tbl_lock, lock_flags);
9f6bbf7c
SF		 2797
2798 found = rocker_group_tbl_find(rocker, match);
2799
2800 if (found) {
c4f20321
SF		 2801 if (trans != SWITCHDEV_TRANS_PREPARE)
2802 hash_del(&found->entry);
9f6bbf7c
SF		 2803 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL;
2804 }
2805
179f9a25 2806 spin_unlock_irqrestore(&rocker->group_tbl_lock, lock_flags);
9f6bbf7c 2807
0985df73 2808 rocker_group_tbl_entry_free(trans, match);
9f6bbf7c
SF		 2809
2810 if (found) {
179f9a25 2811 err = rocker_cmd_exec(rocker_port, trans, flags,
9f6bbf7c 2812 rocker_cmd_group_tbl_del,
c4f20321 2813 found, NULL, NULL);
0985df73 2814 rocker_group_tbl_entry_free(trans, found);
9f6bbf7c
SF		 2815 }
2816
2817 return err;
2818}
2819
2820static int rocker_group_tbl_do(struct rocker_port *rocker_port,
c4f20321
SF		 2821 enum switchdev_trans trans, int flags,
2822 struct rocker_group_tbl_entry *entry)
9f6bbf7c 2823{
9f6bbf7c 2824 if (flags & ROCKER_OP_FLAG_REMOVE)
179f9a25 2825 return rocker_group_tbl_del(rocker_port, trans, flags, entry);
9f6bbf7c 2826 else
179f9a25 2827 return rocker_group_tbl_add(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2828}
2829
2830static int rocker_group_l2_interface(struct rocker_port *rocker_port,
c4f20321
SF		 2831 enum switchdev_trans trans, int flags,
2832 __be16 vlan_id, u32 out_pport,
2833 int pop_vlan)
9f6bbf7c
SF		 2834{
2835 struct rocker_group_tbl_entry *entry;
2836
179f9a25 2837 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
9f6bbf7c
SF		 2838 if (!entry)
2839 return -ENOMEM;
2840
4a6bb6d3 2841 entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
9f6bbf7c
SF		 2842 entry->l2_interface.pop_vlan = pop_vlan;
2843
c4f20321 2844 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2845}
2846
2847static int rocker_group_l2_fan_out(struct rocker_port *rocker_port,
c4f20321 2848 enum switchdev_trans trans,
9f6bbf7c 2849 int flags, u8 group_count,
e5054643 2850 const u32 *group_ids, u32 group_id)
9f6bbf7c
SF		 2851{
2852 struct rocker_group_tbl_entry *entry;
2853
179f9a25 2854 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
9f6bbf7c
SF		 2855 if (!entry)
2856 return -ENOMEM;
2857
2858 entry->group_id = group_id;
2859 entry->group_count = group_count;
2860
179f9a25
SF		 2861 entry->group_ids = rocker_port_kcalloc(rocker_port, trans, flags,
2862 group_count, sizeof(u32));
9f6bbf7c 2863 if (!entry->group_ids) {
0985df73 2864 rocker_port_kfree(trans, entry);
9f6bbf7c
SF		 2865 return -ENOMEM;
2866 }
2867 memcpy(entry->group_ids, group_ids, group_count * sizeof(u32));
2868
c4f20321 2869 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2870}
2871
2872static int rocker_group_l2_flood(struct rocker_port *rocker_port,
c4f20321
SF		 2873 enum switchdev_trans trans, int flags,
2874 __be16 vlan_id, u8 group_count,
e5054643 2875 const u32 *group_ids, u32 group_id)
9f6bbf7c 2876{
c4f20321 2877 return rocker_group_l2_fan_out(rocker_port, trans, flags,
9f6bbf7c
SF		 2878 group_count, group_ids,
2879 group_id);
2880}
2881
c1beeef7 2882static int rocker_group_l3_unicast(struct rocker_port *rocker_port,
c4f20321 2883 enum switchdev_trans trans, int flags,
e5054643 2884 u32 index, const u8 *src_mac, const u8 *dst_mac,
c4f20321 2885 __be16 vlan_id, bool ttl_check, u32 pport)
c1beeef7
SF		 2886{
2887 struct rocker_group_tbl_entry *entry;
2888
179f9a25 2889 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
c1beeef7
SF		 2890 if (!entry)
2891 return -ENOMEM;
2892
2893 entry->group_id = ROCKER_GROUP_L3_UNICAST(index);
2894 if (src_mac)
2895 ether_addr_copy(entry->l3_unicast.eth_src, src_mac);
2896 if (dst_mac)
2897 ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac);
2898 entry->l3_unicast.vlan_id = vlan_id;
2899 entry->l3_unicast.ttl_check = ttl_check;
2900 entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport);
2901
c4f20321 2902 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
c1beeef7
SF		 2903}
2904
2905static struct rocker_neigh_tbl_entry *
e5054643 2906rocker_neigh_tbl_find(const struct rocker *rocker, __be32 ip_addr)
c1beeef7
SF		 2907{
2908 struct rocker_neigh_tbl_entry *found;
2909
0f43deba
SF		 2910 hash_for_each_possible(rocker->neigh_tbl, found,
2911 entry, be32_to_cpu(ip_addr))
c1beeef7
SF		 2912 if (found->ip_addr == ip_addr)
2913 return found;
2914
2915 return NULL;
2916}
2917
2918static void _rocker_neigh_add(struct rocker *rocker,
550ecc92 2919 enum switchdev_trans trans,
c1beeef7
SF		 2920 struct rocker_neigh_tbl_entry *entry)
2921{
4d81db41
SF		 2922 if (trans != SWITCHDEV_TRANS_COMMIT)
2923 entry->index = rocker->neigh_tbl_next_index++;
550ecc92
SH		 2924 if (trans == SWITCHDEV_TRANS_PREPARE)
2925 return;
c1beeef7 2926 entry->ref_count++;
0f43deba
SF		 2927 hash_add(rocker->neigh_tbl, &entry->entry,
2928 be32_to_cpu(entry->ip_addr));
c1beeef7
SF		 2929}
2930
0985df73 2931static void _rocker_neigh_del(enum switchdev_trans trans,
c1beeef7
SF		 2932 struct rocker_neigh_tbl_entry *entry)
2933{
550ecc92
SH		 2934 if (trans == SWITCHDEV_TRANS_PREPARE)
2935 return;
c1beeef7
SF		 2936 if (--entry->ref_count == 0) {
2937 hash_del(&entry->entry);
0985df73 2938 rocker_port_kfree(trans, entry);
c1beeef7
SF		 2939 }
2940}
2941
c4f20321 2942static void _rocker_neigh_update(struct rocker_neigh_tbl_entry *entry,
550ecc92 2943 enum switchdev_trans trans,
e5054643 2944 const u8 *eth_dst, bool ttl_check)
c1beeef7
SF		 2945{
2946 if (eth_dst) {
2947 ether_addr_copy(entry->eth_dst, eth_dst);
2948 entry->ttl_check = ttl_check;
550ecc92 2949 } else if (trans != SWITCHDEV_TRANS_PREPARE) {
c1beeef7
SF		 2950 entry->ref_count++;
2951 }
2952}
2953
2954static int rocker_port_ipv4_neigh(struct rocker_port *rocker_port,
c4f20321 2955 enum switchdev_trans trans,
e5054643 2956 int flags, __be32 ip_addr, const u8 *eth_dst)
c1beeef7
SF		 2957{
2958 struct rocker *rocker = rocker_port->rocker;
2959 struct rocker_neigh_tbl_entry *entry;
2960 struct rocker_neigh_tbl_entry *found;
2961 unsigned long lock_flags;
2962 __be16 eth_type = htons(ETH_P_IP);
2963 enum rocker_of_dpa_table_id goto_tbl =
2964 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2965 u32 group_id;
2966 u32 priority = 0;
2967 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
2968 bool updating;
2969 bool removing;
2970 int err = 0;
2971
179f9a25 2972 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
c1beeef7
SF		 2973 if (!entry)
2974 return -ENOMEM;
2975
2976 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
2977
2978 found = rocker_neigh_tbl_find(rocker, ip_addr);
2979
2980 updating = found && adding;
2981 removing = found && !adding;
2982 adding = !found && adding;
2983
2984 if (adding) {
2985 entry->ip_addr = ip_addr;
2986 entry->dev = rocker_port->dev;
2987 ether_addr_copy(entry->eth_dst, eth_dst);
2988 entry->ttl_check = true;
550ecc92 2989 _rocker_neigh_add(rocker, trans, entry);
c1beeef7
SF		 2990 } else if (removing) {
2991 memcpy(entry, found, sizeof(*entry));
0985df73 2992 _rocker_neigh_del(trans, found);
c1beeef7 2993 } else if (updating) {
550ecc92 2994 _rocker_neigh_update(found, trans, eth_dst, true);
c1beeef7
SF		 2995 memcpy(entry, found, sizeof(*entry));
2996 } else {
2997 err = -ENOENT;
2998 }
2999
3000 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
3001
3002 if (err)
3003 goto err_out;
3004
3005 /* For each active neighbor, we have an L3 unicast group and
3006 * a /32 route to the neighbor, which uses the L3 unicast
3007 * group. The L3 unicast group can also be referred to by
3008 * other routes' nexthops.
3009 */
3010
c4f20321 3011 err = rocker_group_l3_unicast(rocker_port, trans, flags,
c1beeef7
SF		 3012 entry->index,
3013 rocker_port->dev->dev_addr,
3014 entry->eth_dst,
3015 rocker_port->internal_vlan_id,
3016 entry->ttl_check,
3017 rocker_port->pport);
3018 if (err) {
3019 netdev_err(rocker_port->dev,
3020 "Error (%d) L3 unicast group index %d\n",
3021 err, entry->index);
3022 goto err_out;
3023 }
3024
3025 if (adding || removing) {
3026 group_id = ROCKER_GROUP_L3_UNICAST(entry->index);
c4f20321 3027 err = rocker_flow_tbl_ucast4_routing(rocker_port, trans,
c1beeef7
SF		 3028 eth_type, ip_addr,
3029 inet_make_mask(32),
3030 priority, goto_tbl,
3031 group_id, flags);
3032
3033 if (err)
3034 netdev_err(rocker_port->dev,
3035 "Error (%d) /32 unicast route %pI4 group 0x%08x\n",
3036 err, &entry->ip_addr, group_id);
3037 }
3038
3039err_out:
3040 if (!adding)
0985df73 3041 rocker_port_kfree(trans, entry);
c1beeef7
SF		 3042
3043 return err;
3044}
3045
3046static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port,
c4f20321 3047 enum switchdev_trans trans, __be32 ip_addr)
c1beeef7
SF		 3048{
3049 struct net_device *dev = rocker_port->dev;
0f43deba 3050 struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr);
c1beeef7
SF		 3051 int err = 0;
3052
4133fc09 3053 if (!n) {
c1beeef7 3054 n = neigh_create(&arp_tbl, &ip_addr, dev);
4133fc09
YX		 3055 if (IS_ERR(n))
3056 return IS_ERR(n);
3057 }
c1beeef7
SF		 3058
3059 /* If the neigh is already resolved, then go ahead and
3060 * install the entry, otherwise start the ARP process to
3061 * resolve the neigh.
3062 */
3063
3064 if (n->nud_state & NUD_VALID)
c4f20321
SF		 3065 err = rocker_port_ipv4_neigh(rocker_port, trans, 0,
3066 ip_addr, n->ha);
c1beeef7
SF		 3067 else
3068 neigh_event_send(n, NULL);
3069
4133fc09 3070 neigh_release(n);
c1beeef7
SF		 3071 return err;
3072}
3073
c4f20321
SF		 3074static int rocker_port_ipv4_nh(struct rocker_port *rocker_port,
3075 enum switchdev_trans trans, int flags,
c1beeef7
SF		 3076 __be32 ip_addr, u32 *index)
3077{
3078 struct rocker *rocker = rocker_port->rocker;
3079 struct rocker_neigh_tbl_entry *entry;
3080 struct rocker_neigh_tbl_entry *found;
3081 unsigned long lock_flags;
3082 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3083 bool updating;
3084 bool removing;
3085 bool resolved = true;
3086 int err = 0;
3087
179f9a25 3088 entry = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*entry));
c1beeef7
SF		 3089 if (!entry)
3090 return -ENOMEM;
3091
3092 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
3093
3094 found = rocker_neigh_tbl_find(rocker, ip_addr);
3095 if (found)
3096 *index = found->index;
3097
3098 updating = found && adding;
3099 removing = found && !adding;
3100 adding = !found && adding;
3101
3102 if (adding) {
3103 entry->ip_addr = ip_addr;
3104 entry->dev = rocker_port->dev;
550ecc92 3105 _rocker_neigh_add(rocker, trans, entry);
c1beeef7
SF		 3106 *index = entry->index;
3107 resolved = false;
3108 } else if (removing) {
0985df73 3109 _rocker_neigh_del(trans, found);
c1beeef7 3110 } else if (updating) {
550ecc92 3111 _rocker_neigh_update(found, trans, NULL, false);
c1beeef7
SF		 3112 resolved = !is_zero_ether_addr(found->eth_dst);
3113 } else {
3114 err = -ENOENT;
3115 }
3116
3117 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
3118
3119 if (!adding)
0985df73 3120 rocker_port_kfree(trans, entry);
c1beeef7
SF		 3121
3122 if (err)
3123 return err;
3124
3125 /* Resolved means neigh ip_addr is resolved to neigh mac. */
3126
3127 if (!resolved)
c4f20321 3128 err = rocker_port_ipv4_resolve(rocker_port, trans, ip_addr);
c1beeef7
SF		 3129
3130 return err;
3131}
3132
6c707945 3133static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port,
c4f20321 3134 enum switchdev_trans trans,
6c707945
SF		 3135 int flags, __be16 vlan_id)
3136{
3137 struct rocker_port *p;
e5054643 3138 const struct rocker *rocker = rocker_port->rocker;
6c707945 3139 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
04f49faf 3140 u32 *group_ids;
6c707945 3141 u8 group_count = 0;
04f49faf 3142 int err = 0;
6c707945
SF		 3143 int i;
3144
179f9a25
SF		 3145 group_ids = rocker_port_kcalloc(rocker_port, trans, flags,
3146 rocker->port_count, sizeof(u32));
04f49faf
SF		 3147 if (!group_ids)
3148 return -ENOMEM;
3149
6c707945
SF		 3150 /* Adjust the flood group for this VLAN. The flood group
3151 * references an L2 interface group for each port in this
3152 * VLAN.
3153 */
3154
3155 for (i = 0; i < rocker->port_count; i++) {
3156 p = rocker->ports[i];
bcfd7801
SF		 3157 if (!p)
3158 continue;
6c707945
SF		 3159 if (!rocker_port_is_bridged(p))
3160 continue;
3161 if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) {
3162 group_ids[group_count++] =
4a6bb6d3 3163 ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport);
6c707945
SF		 3164 }
3165 }
3166
3167 /* If there are no bridged ports in this VLAN, we're done */
3168 if (group_count == 0)
04f49faf 3169 goto no_ports_in_vlan;
6c707945 3170
c4f20321
SF		 3171 err = rocker_group_l2_flood(rocker_port, trans, flags, vlan_id,
3172 group_count, group_ids, group_id);
6c707945
SF		 3173 if (err)
3174 netdev_err(rocker_port->dev,
3175 "Error (%d) port VLAN l2 flood group\n", err);
3176
04f49faf 3177no_ports_in_vlan:
0985df73 3178 rocker_port_kfree(trans, group_ids);
6c707945
SF		 3179 return err;
3180}
3181
3182static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port,
c4f20321
SF		 3183 enum switchdev_trans trans, int flags,
3184 __be16 vlan_id, bool pop_vlan)
6c707945 3185{
e5054643 3186 const struct rocker *rocker = rocker_port->rocker;
6c707945
SF		 3187 struct rocker_port *p;
3188 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
4a6bb6d3 3189 u32 out_pport;
6c707945
SF		 3190 int ref = 0;
3191 int err;
3192 int i;
3193
3194 /* An L2 interface group for this port in this VLAN, but
3195 * only when port STP state is LEARNING|FORWARDING.
3196 */
3197
3198 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3199 rocker_port->stp_state == BR_STATE_FORWARDING) {
4a6bb6d3 3200 out_pport = rocker_port->pport;
c4f20321
SF		 3201 err = rocker_group_l2_interface(rocker_port, trans, flags,
3202 vlan_id, out_pport, pop_vlan);
6c707945
SF		 3203 if (err) {
3204 netdev_err(rocker_port->dev,
4a6bb6d3
SF		 3205 "Error (%d) port VLAN l2 group for pport %d\n",
3206 err, out_pport);
6c707945
SF		 3207 return err;
3208 }
3209 }
3210
3211 /* An L2 interface group for this VLAN to CPU port.
3212 * Add when first port joins this VLAN and destroy when
3213 * last port leaves this VLAN.
3214 */
3215
3216 for (i = 0; i < rocker->port_count; i++) {
3217 p = rocker->ports[i];
bcfd7801 3218 if (p && test_bit(ntohs(vlan_id), p->vlan_bitmap))
6c707945
SF		 3219 ref++;
3220 }
3221
3222 if ((!adding || ref != 1) && (adding || ref != 0))
3223 return 0;
3224
4a6bb6d3 3225 out_pport = 0;
c4f20321
SF		 3226 err = rocker_group_l2_interface(rocker_port, trans, flags,
3227 vlan_id, out_pport, pop_vlan);
6c707945
SF		 3228 if (err) {
3229 netdev_err(rocker_port->dev,
3230 "Error (%d) port VLAN l2 group for CPU port\n", err);
3231 return err;
3232 }
3233
3234 return 0;
3235}
3236
9f6bbf7c
SF		 3237static struct rocker_ctrl {
3238 const u8 *eth_dst;
3239 const u8 *eth_dst_mask;
11e6c65a 3240 __be16 eth_type;
9f6bbf7c
SF		 3241 bool acl;
3242 bool bridge;
3243 bool term;
3244 bool copy_to_cpu;
3245} rocker_ctrls[] = {
3246 [ROCKER_CTRL_LINK_LOCAL_MCAST] = {
3247 /* pass link local multicast pkts up to CPU for filtering */
3248 .eth_dst = ll_mac,
3249 .eth_dst_mask = ll_mask,
3250 .acl = true,
3251 },
3252 [ROCKER_CTRL_LOCAL_ARP] = {
3253 /* pass local ARP pkts up to CPU */
3254 .eth_dst = zero_mac,
3255 .eth_dst_mask = zero_mac,
3256 .eth_type = htons(ETH_P_ARP),
3257 .acl = true,
3258 },
3259 [ROCKER_CTRL_IPV4_MCAST] = {
3260 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
3261 .eth_dst = ipv4_mcast,
3262 .eth_dst_mask = ipv4_mask,
3263 .eth_type = htons(ETH_P_IP),
3264 .term = true,
3265 .copy_to_cpu = true,
3266 },
3267 [ROCKER_CTRL_IPV6_MCAST] = {
3268 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
3269 .eth_dst = ipv6_mcast,
3270 .eth_dst_mask = ipv6_mask,
3271 .eth_type = htons(ETH_P_IPV6),
3272 .term = true,
3273 .copy_to_cpu = true,
3274 },
3275 [ROCKER_CTRL_DFLT_BRIDGING] = {
3276 /* flood any pkts on vlan */
3277 .bridge = true,
3278 .copy_to_cpu = true,
3279 },
3280};
3281
3282static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port,
c4f20321 3283 enum switchdev_trans trans, int flags,
e5054643 3284 const struct rocker_ctrl *ctrl, __be16 vlan_id)
9f6bbf7c 3285{
4a6bb6d3
SF		 3286 u32 in_pport = rocker_port->pport;
3287 u32 in_pport_mask = 0xffffffff;
3288 u32 out_pport = 0;
e5054643
SH		 3289 const u8 *eth_src = NULL;
3290 const u8 *eth_src_mask = NULL;
9f6bbf7c
SF		 3291 __be16 vlan_id_mask = htons(0xffff);
3292 u8 ip_proto = 0;
3293 u8 ip_proto_mask = 0;
3294 u8 ip_tos = 0;
3295 u8 ip_tos_mask = 0;
4a6bb6d3 3296 u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
9f6bbf7c
SF		 3297 int err;
3298
c4f20321 3299 err = rocker_flow_tbl_acl(rocker_port, trans, flags,
4a6bb6d3 3300 in_pport, in_pport_mask,
9f6bbf7c
SF		 3301 eth_src, eth_src_mask,
3302 ctrl->eth_dst, ctrl->eth_dst_mask,
3303 ctrl->eth_type,
3304 vlan_id, vlan_id_mask,
3305 ip_proto, ip_proto_mask,
3306 ip_tos, ip_tos_mask,
3307 group_id);
3308
3309 if (err)
3310 netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err);
3311
3312 return err;
3313}
3314
6c707945 3315static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port,
c4f20321 3316 enum switchdev_trans trans, int flags,
e5054643 3317 const struct rocker_ctrl *ctrl,
6c707945
SF		 3318 __be16 vlan_id)
3319{
3320 enum rocker_of_dpa_table_id goto_tbl =
3321 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3322 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
3323 u32 tunnel_id = 0;
3324 int err;
3325
3326 if (!rocker_port_is_bridged(rocker_port))
3327 return 0;
3328
c4f20321 3329 err = rocker_flow_tbl_bridge(rocker_port, trans, flags,
6c707945
SF		 3330 ctrl->eth_dst, ctrl->eth_dst_mask,
3331 vlan_id, tunnel_id,
3332 goto_tbl, group_id, ctrl->copy_to_cpu);
3333
3334 if (err)
3335 netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err);
3336
3337 return err;
3338}
3339
9f6bbf7c 3340static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port,
c4f20321 3341 enum switchdev_trans trans, int flags,
e5054643 3342 const struct rocker_ctrl *ctrl, __be16 vlan_id)
9f6bbf7c 3343{
4a6bb6d3 3344 u32 in_pport_mask = 0xffffffff;
9f6bbf7c
SF		 3345 __be16 vlan_id_mask = htons(0xffff);
3346 int err;
3347
3348 if (ntohs(vlan_id) == 0)
3349 vlan_id = rocker_port->internal_vlan_id;
3350
c4f20321 3351 err = rocker_flow_tbl_term_mac(rocker_port, trans,
4a6bb6d3 3352 rocker_port->pport, in_pport_mask,
9f6bbf7c
SF		 3353 ctrl->eth_type, ctrl->eth_dst,
3354 ctrl->eth_dst_mask, vlan_id,
3355 vlan_id_mask, ctrl->copy_to_cpu,
3356 flags);
3357
3358 if (err)
3359 netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err);
3360
3361 return err;
3362}
3363
c4f20321
SF		 3364static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port,
3365 enum switchdev_trans trans, int flags,
e5054643 3366 const struct rocker_ctrl *ctrl, __be16 vlan_id)
9f6bbf7c
SF		 3367{
3368 if (ctrl->acl)
c4f20321 3369 return rocker_port_ctrl_vlan_acl(rocker_port, trans, flags,
9f6bbf7c 3370 ctrl, vlan_id);
6c707945 3371 if (ctrl->bridge)
c4f20321 3372 return rocker_port_ctrl_vlan_bridge(rocker_port, trans, flags,
6c707945 3373 ctrl, vlan_id);
9f6bbf7c
SF		 3374
3375 if (ctrl->term)
c4f20321 3376 return rocker_port_ctrl_vlan_term(rocker_port, trans, flags,
9f6bbf7c
SF		 3377 ctrl, vlan_id);
3378
3379 return -EOPNOTSUPP;
3380}
3381
3382static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port,
c4f20321
SF		 3383 enum switchdev_trans trans, int flags,
3384 __be16 vlan_id)
9f6bbf7c
SF		 3385{
3386 int err = 0;
3387 int i;
3388
3389 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3390 if (rocker_port->ctrls[i]) {
c4f20321 3391 err = rocker_port_ctrl_vlan(rocker_port, trans, flags,
9f6bbf7c
SF		 3392 &rocker_ctrls[i], vlan_id);
3393 if (err)
3394 return err;
3395 }
3396 }
3397
3398 return err;
3399}
3400
c4f20321
SF		 3401static int rocker_port_ctrl(struct rocker_port *rocker_port,
3402 enum switchdev_trans trans, int flags,
e5054643 3403 const struct rocker_ctrl *ctrl)
9f6bbf7c
SF		 3404{
3405 u16 vid;
3406 int err = 0;
3407
3408 for (vid = 1; vid < VLAN_N_VID; vid++) {
3409 if (!test_bit(vid, rocker_port->vlan_bitmap))
3410 continue;
c4f20321 3411 err = rocker_port_ctrl_vlan(rocker_port, trans, flags,
9f6bbf7c
SF		 3412 ctrl, htons(vid));
3413 if (err)
3414 break;
3415 }
3416
3417 return err;
3418}
3419
c4f20321
SF		 3420static int rocker_port_vlan(struct rocker_port *rocker_port,
3421 enum switchdev_trans trans, int flags, u16 vid)
6c707945
SF		 3422{
3423 enum rocker_of_dpa_table_id goto_tbl =
3424 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
4a6bb6d3 3425 u32 in_pport = rocker_port->pport;
6c707945
SF		 3426 __be16 vlan_id = htons(vid);
3427 __be16 vlan_id_mask = htons(0xffff);
3428 __be16 internal_vlan_id;
3429 bool untagged;
3430 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3431 int err;
3432
3433 internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged);
3434
9228ad26
SF		 3435 if (adding && test_bit(ntohs(internal_vlan_id),
3436 rocker_port->vlan_bitmap))
6c707945 3437 return 0; /* already added */
9228ad26
SF		 3438 else if (!adding && !test_bit(ntohs(internal_vlan_id),
3439 rocker_port->vlan_bitmap))
6c707945
SF		 3440 return 0; /* already removed */
3441
9228ad26
SF		 3442 change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap);
3443
6c707945 3444 if (adding) {
c4f20321 3445 err = rocker_port_ctrl_vlan_add(rocker_port, trans, flags,
6c707945
SF		 3446 internal_vlan_id);
3447 if (err) {
3448 netdev_err(rocker_port->dev,
3449 "Error (%d) port ctrl vlan add\n", err);
9228ad26 3450 goto err_out;
6c707945
SF		 3451 }
3452 }
3453
c4f20321 3454 err = rocker_port_vlan_l2_groups(rocker_port, trans, flags,
6c707945
SF		 3455 internal_vlan_id, untagged);
3456 if (err) {
3457 netdev_err(rocker_port->dev,
3458 "Error (%d) port VLAN l2 groups\n", err);
9228ad26 3459 goto err_out;
6c707945
SF		 3460 }
3461
c4f20321 3462 err = rocker_port_vlan_flood_group(rocker_port, trans, flags,
6c707945
SF		 3463 internal_vlan_id);
3464 if (err) {
3465 netdev_err(rocker_port->dev,
3466 "Error (%d) port VLAN l2 flood group\n", err);
9228ad26 3467 goto err_out;
6c707945
SF		 3468 }
3469
c4f20321 3470 err = rocker_flow_tbl_vlan(rocker_port, trans, flags,
4a6bb6d3 3471 in_pport, vlan_id, vlan_id_mask,
6c707945
SF		 3472 goto_tbl, untagged, internal_vlan_id);
3473 if (err)
3474 netdev_err(rocker_port->dev,
3475 "Error (%d) port VLAN table\n", err);
3476
9228ad26
SF		 3477err_out:
3478 if (trans == SWITCHDEV_TRANS_PREPARE)
3479 change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap);
3480
6c707945
SF		 3481 return err;
3482}
3483
c4f20321
SF		 3484static int rocker_port_ig_tbl(struct rocker_port *rocker_port,
3485 enum switchdev_trans trans, int flags)
9f6bbf7c
SF		 3486{
3487 enum rocker_of_dpa_table_id goto_tbl;
4a6bb6d3
SF		 3488 u32 in_pport;
3489 u32 in_pport_mask;
9f6bbf7c
SF		 3490 int err;
3491
3492 /* Normal Ethernet Frames. Matches pkts from any local physical
3493 * ports. Goto VLAN tbl.
3494 */
3495
4a6bb6d3
SF		 3496 in_pport = 0;
3497 in_pport_mask = 0xffff0000;
9f6bbf7c
SF		 3498 goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
3499
c4f20321 3500 err = rocker_flow_tbl_ig_port(rocker_port, trans, flags,
4a6bb6d3 3501 in_pport, in_pport_mask,
9f6bbf7c
SF		 3502 goto_tbl);
3503 if (err)
3504 netdev_err(rocker_port->dev,
3505 "Error (%d) ingress port table entry\n", err);
3506
3507 return err;
3508}
3509
6c707945
SF		 3510struct rocker_fdb_learn_work {
3511 struct work_struct work;
c4f20321
SF		 3512 struct rocker_port *rocker_port;
3513 enum switchdev_trans trans;
6c707945
SF		 3514 int flags;
3515 u8 addr[ETH_ALEN];
3516 u16 vid;
3517};
3518
3519static void rocker_port_fdb_learn_work(struct work_struct *work)
3520{
e5054643 3521 const struct rocker_fdb_learn_work *lw =
6c707945
SF		 3522 container_of(work, struct rocker_fdb_learn_work, work);
3523 bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE);
3524 bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED);
ebb9a03a 3525 struct switchdev_notifier_fdb_info info;
3aeb6617
JP		 3526
3527 info.addr = lw->addr;
3528 info.vid = lw->vid;
6c707945 3529
51ace887 3530 if (learned && removing)
ebb9a03a 3531 call_switchdev_notifiers(SWITCHDEV_FDB_DEL,
c4f20321 3532 lw->rocker_port->dev, &info.info);
51ace887 3533 else if (learned && !removing)
ebb9a03a 3534 call_switchdev_notifiers(SWITCHDEV_FDB_ADD,
c4f20321 3535 lw->rocker_port->dev, &info.info);
6c707945 3536
0985df73 3537 rocker_port_kfree(lw->trans, work);
6c707945
SF		 3538}
3539
3540static int rocker_port_fdb_learn(struct rocker_port *rocker_port,
c4f20321
SF		 3541 enum switchdev_trans trans, int flags,
3542 const u8 *addr, __be16 vlan_id)
6c707945
SF		 3543{
3544 struct rocker_fdb_learn_work *lw;
3545 enum rocker_of_dpa_table_id goto_tbl =
3546 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
4a6bb6d3 3547 u32 out_pport = rocker_port->pport;
6c707945
SF		 3548 u32 tunnel_id = 0;
3549 u32 group_id = ROCKER_GROUP_NONE;
5111f80c 3550 bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC);
6c707945
SF		 3551 bool copy_to_cpu = false;
3552 int err;
3553
3554 if (rocker_port_is_bridged(rocker_port))
4a6bb6d3 3555 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
6c707945
SF		 3556
3557 if (!(flags & ROCKER_OP_FLAG_REFRESH)) {
c4f20321
SF		 3558 err = rocker_flow_tbl_bridge(rocker_port, trans, flags, addr,
3559 NULL, vlan_id, tunnel_id, goto_tbl,
6c707945
SF		 3560 group_id, copy_to_cpu);
3561 if (err)
3562 return err;
3563 }
3564
5111f80c
SF		 3565 if (!syncing)
3566 return 0;
3567
6c707945
SF		 3568 if (!rocker_port_is_bridged(rocker_port))
3569 return 0;
3570
179f9a25 3571 lw = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*lw));
6c707945
SF		 3572 if (!lw)
3573 return -ENOMEM;
3574
3575 INIT_WORK(&lw->work, rocker_port_fdb_learn_work);
3576
c4f20321
SF		 3577 lw->rocker_port = rocker_port;
3578 lw->trans = trans;
6c707945
SF		 3579 lw->flags = flags;
3580 ether_addr_copy(lw->addr, addr);
3581 lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id);
3582
c4f20321 3583 if (trans == SWITCHDEV_TRANS_PREPARE)
0985df73 3584 rocker_port_kfree(trans, lw);
c4f20321
SF		 3585 else
3586 schedule_work(&lw->work);
6c707945
SF		 3587
3588 return 0;
3589}
3590
3591static struct rocker_fdb_tbl_entry *
e5054643
SH		 3592rocker_fdb_tbl_find(const struct rocker *rocker,
3593 const struct rocker_fdb_tbl_entry *match)
6c707945
SF		 3594{
3595 struct rocker_fdb_tbl_entry *found;
3596
3597 hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32)
3598 if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
3599 return found;
3600
3601 return NULL;
3602}
3603
3604static int rocker_port_fdb(struct rocker_port *rocker_port,
c4f20321 3605 enum switchdev_trans trans,
6c707945
SF		 3606 const unsigned char *addr,
3607 __be16 vlan_id, int flags)
3608{
3609 struct rocker *rocker = rocker_port->rocker;
3610 struct rocker_fdb_tbl_entry *fdb;
3611 struct rocker_fdb_tbl_entry *found;
3612 bool removing = (flags & ROCKER_OP_FLAG_REMOVE);
3613 unsigned long lock_flags;
3614
179f9a25 3615 fdb = rocker_port_kzalloc(rocker_port, trans, flags, sizeof(*fdb));
6c707945
SF		 3616 if (!fdb)
3617 return -ENOMEM;
3618
3619 fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED);
4a6bb6d3 3620 fdb->key.pport = rocker_port->pport;
6c707945
SF		 3621 ether_addr_copy(fdb->key.addr, addr);
3622 fdb->key.vlan_id = vlan_id;
3623 fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key));
3624
3625 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3626
3627 found = rocker_fdb_tbl_find(rocker, fdb);
3628
3629 if (removing && found) {
0985df73 3630 rocker_port_kfree(trans, fdb);
42e94889
SH		 3631 if (trans != SWITCHDEV_TRANS_PREPARE)
3632 hash_del(&found->entry);
6c707945 3633 } else if (!removing && !found) {
42e94889
SH		 3634 if (trans != SWITCHDEV_TRANS_PREPARE)
3635 hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32);
6c707945
SF		 3636 }
3637
3638 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3639
3640 /* Check if adding and already exists, or removing and can't find */
3641 if (!found != !removing) {
0985df73 3642 rocker_port_kfree(trans, fdb);
6c707945
SF		 3643 if (!found && removing)
3644 return 0;
3645 /* Refreshing existing to update aging timers */
3646 flags |= ROCKER_OP_FLAG_REFRESH;
3647 }
3648
c4f20321 3649 return rocker_port_fdb_learn(rocker_port, trans, flags, addr, vlan_id);
6c707945
SF		 3650}
3651
c4f20321 3652static int rocker_port_fdb_flush(struct rocker_port *rocker_port,
179f9a25 3653 enum switchdev_trans trans, int flags)
6c707945
SF		 3654{
3655 struct rocker *rocker = rocker_port->rocker;
3656 struct rocker_fdb_tbl_entry *found;
3657 unsigned long lock_flags;
6c707945
SF		 3658 struct hlist_node *tmp;
3659 int bkt;
3660 int err = 0;
3661
3662 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3663 rocker_port->stp_state == BR_STATE_FORWARDING)
3664 return 0;
3665
179f9a25
SF		 3666 flags |= ROCKER_OP_FLAG_REMOVE;
3667
6c707945
SF		 3668 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3669
3670 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
4a6bb6d3 3671 if (found->key.pport != rocker_port->pport)
6c707945
SF		 3672 continue;
3673 if (!found->learned)
3674 continue;
c4f20321 3675 err = rocker_port_fdb_learn(rocker_port, trans, flags,
6c707945
SF		 3676 found->key.addr,
3677 found->key.vlan_id);
3678 if (err)
3679 goto err_out;
3098ac39
SH		 3680 if (trans != SWITCHDEV_TRANS_PREPARE)
3681 hash_del(&found->entry);
6c707945
SF		 3682 }
3683
3684err_out:
3685 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3686
3687 return err;
3688}
3689
9f6bbf7c 3690static int rocker_port_router_mac(struct rocker_port *rocker_port,
c4f20321
SF		 3691 enum switchdev_trans trans, int flags,
3692 __be16 vlan_id)
9f6bbf7c 3693{
4a6bb6d3 3694 u32 in_pport_mask = 0xffffffff;
9f6bbf7c
SF		 3695 __be16 eth_type;
3696 const u8 *dst_mac_mask = ff_mac;
3697 __be16 vlan_id_mask = htons(0xffff);
3698 bool copy_to_cpu = false;
3699 int err;
3700
3701 if (ntohs(vlan_id) == 0)
3702 vlan_id = rocker_port->internal_vlan_id;
3703
3704 eth_type = htons(ETH_P_IP);
c4f20321 3705 err = rocker_flow_tbl_term_mac(rocker_port, trans,
4a6bb6d3 3706 rocker_port->pport, in_pport_mask,
9f6bbf7c
SF		 3707 eth_type, rocker_port->dev->dev_addr,
3708 dst_mac_mask, vlan_id, vlan_id_mask,
3709 copy_to_cpu, flags);
3710 if (err)
3711 return err;
3712
3713 eth_type = htons(ETH_P_IPV6);
c4f20321 3714 err = rocker_flow_tbl_term_mac(rocker_port, trans,
4a6bb6d3 3715 rocker_port->pport, in_pport_mask,
9f6bbf7c
SF		 3716 eth_type, rocker_port->dev->dev_addr,
3717 dst_mac_mask, vlan_id, vlan_id_mask,
3718 copy_to_cpu, flags);
3719
3720 return err;
3721}
3722
c4f20321 3723static int rocker_port_fwding(struct rocker_port *rocker_port,
179f9a25 3724 enum switchdev_trans trans, int flags)
6c707945
SF		 3725{
3726 bool pop_vlan;
4a6bb6d3 3727 u32 out_pport;
6c707945
SF		 3728 __be16 vlan_id;
3729 u16 vid;
6c707945
SF		 3730 int err;
3731
3732 /* Port will be forwarding-enabled if its STP state is LEARNING
3733 * or FORWARDING. Traffic from CPU can still egress, regardless of
3734 * port STP state. Use L2 interface group on port VLANs as a way
3735 * to toggle port forwarding: if forwarding is disabled, L2
3736 * interface group will not exist.
3737 */
3738
3739 if (rocker_port->stp_state != BR_STATE_LEARNING &&
3740 rocker_port->stp_state != BR_STATE_FORWARDING)
3741 flags |= ROCKER_OP_FLAG_REMOVE;
3742
4a6bb6d3 3743 out_pport = rocker_port->pport;
6c707945
SF		 3744 for (vid = 1; vid < VLAN_N_VID; vid++) {
3745 if (!test_bit(vid, rocker_port->vlan_bitmap))
3746 continue;
3747 vlan_id = htons(vid);
3748 pop_vlan = rocker_vlan_id_is_internal(vlan_id);
c4f20321
SF		 3749 err = rocker_group_l2_interface(rocker_port, trans, flags,
3750 vlan_id, out_pport, pop_vlan);
6c707945
SF		 3751 if (err) {
3752 netdev_err(rocker_port->dev,
4a6bb6d3
SF		 3753 "Error (%d) port VLAN l2 group for pport %d\n",
3754 err, out_pport);
6c707945
SF		 3755 return err;
3756 }
3757 }
3758
3759 return 0;
3760}
3761
c4f20321 3762static int rocker_port_stp_update(struct rocker_port *rocker_port,
179f9a25
SF		 3763 enum switchdev_trans trans, int flags,
3764 u8 state)
6c707945
SF		 3765{
3766 bool want[ROCKER_CTRL_MAX] = { 0, };
c4f20321
SF		 3767 bool prev_ctrls[ROCKER_CTRL_MAX];
3768 u8 prev_state;
6c707945
SF		 3769 int err;
3770 int i;
3771
c4f20321
SF		 3772 if (trans == SWITCHDEV_TRANS_PREPARE) {
3773 memcpy(prev_ctrls, rocker_port->ctrls, sizeof(prev_ctrls));
3774 prev_state = rocker_port->stp_state;
3775 }
3776
6c707945
SF		 3777 if (rocker_port->stp_state == state)
3778 return 0;
3779
3780 rocker_port->stp_state = state;
3781
3782 switch (state) {
3783 case BR_STATE_DISABLED:
3784 /* port is completely disabled */
3785 break;
3786 case BR_STATE_LISTENING:
3787 case BR_STATE_BLOCKING:
3788 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3789 break;
3790 case BR_STATE_LEARNING:
3791 case BR_STATE_FORWARDING:
3792 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3793 want[ROCKER_CTRL_IPV4_MCAST] = true;
3794 want[ROCKER_CTRL_IPV6_MCAST] = true;
3795 if (rocker_port_is_bridged(rocker_port))
3796 want[ROCKER_CTRL_DFLT_BRIDGING] = true;
3797 else
3798 want[ROCKER_CTRL_LOCAL_ARP] = true;
3799 break;
3800 }
3801
3802 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3803 if (want[i] != rocker_port->ctrls[i]) {
179f9a25
SF		 3804 int ctrl_flags = flags |
3805 (want[i] ? 0 : ROCKER_OP_FLAG_REMOVE);
3806 err = rocker_port_ctrl(rocker_port, trans, ctrl_flags,
6c707945
SF		 3807 &rocker_ctrls[i]);
3808 if (err)
c4f20321 3809 goto err_out;
6c707945
SF		 3810 rocker_port->ctrls[i] = want[i];
3811 }
3812 }
3813
179f9a25 3814 err = rocker_port_fdb_flush(rocker_port, trans, flags);
6c707945 3815 if (err)
c4f20321 3816 goto err_out;
6c707945 3817
179f9a25 3818 err = rocker_port_fwding(rocker_port, trans, flags);
c4f20321
SF		 3819
3820err_out:
3821 if (trans == SWITCHDEV_TRANS_PREPARE) {
3822 memcpy(rocker_port->ctrls, prev_ctrls, sizeof(prev_ctrls));
3823 rocker_port->stp_state = prev_state;
3824 }
3825
3826 return err;
6c707945
SF		 3827}
3828
c4f20321 3829static int rocker_port_fwd_enable(struct rocker_port *rocker_port,
179f9a25 3830 enum switchdev_trans trans, int flags)
e47172ab
SF		 3831{
3832 if (rocker_port_is_bridged(rocker_port))
3833 /* bridge STP will enable port */
3834 return 0;
3835
3836 /* port is not bridged, so simulate going to FORWARDING state */
179f9a25
SF		 3837 return rocker_port_stp_update(rocker_port, trans, flags,
3838 BR_STATE_FORWARDING);
e47172ab
SF		 3839}
3840
c4f20321 3841static int rocker_port_fwd_disable(struct rocker_port *rocker_port,
179f9a25 3842 enum switchdev_trans trans, int flags)
e47172ab
SF		 3843{
3844 if (rocker_port_is_bridged(rocker_port))
3845 /* bridge STP will disable port */
3846 return 0;
3847
3848 /* port is not bridged, so simulate going to DISABLED state */
179f9a25
SF		 3849 return rocker_port_stp_update(rocker_port, trans, flags,
3850 BR_STATE_DISABLED);
e47172ab
SF		 3851}
3852
9f6bbf7c 3853static struct rocker_internal_vlan_tbl_entry *
e5054643 3854rocker_internal_vlan_tbl_find(const struct rocker *rocker, int ifindex)
9f6bbf7c
SF		 3855{
3856 struct rocker_internal_vlan_tbl_entry *found;
3857
3858 hash_for_each_possible(rocker->internal_vlan_tbl, found,
3859 entry, ifindex) {
3860 if (found->ifindex == ifindex)
3861 return found;
3862 }
3863
3864 return NULL;
3865}
3866
3867static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port,
3868 int ifindex)
3869{
3870 struct rocker *rocker = rocker_port->rocker;
3871 struct rocker_internal_vlan_tbl_entry *entry;
3872 struct rocker_internal_vlan_tbl_entry *found;
3873 unsigned long lock_flags;
3874 int i;
3875
df6a2067 3876 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
9f6bbf7c
SF		 3877 if (!entry)
3878 return 0;
3879
3880 entry->ifindex = ifindex;
3881
3882 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3883
3884 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3885 if (found) {
df6a2067 3886 kfree(entry);
9f6bbf7c
SF		 3887 goto found;
3888 }
3889
3890 found = entry;
3891 hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex);
3892
3893 for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) {
3894 if (test_and_set_bit(i, rocker->internal_vlan_bitmap))
3895 continue;
3896 found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i);
3897 goto found;
3898 }
3899
3900 netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n");
3901
3902found:
3903 found->ref_count++;
3904 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3905
3906 return found->vlan_id;
3907}
3908
e5054643
SH		 3909static void
3910rocker_port_internal_vlan_id_put(const struct rocker_port *rocker_port,
3911 int ifindex)
9f6bbf7c
SF		 3912{
3913 struct rocker *rocker = rocker_port->rocker;
3914 struct rocker_internal_vlan_tbl_entry *found;
3915 unsigned long lock_flags;
3916 unsigned long bit;
3917
3918 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3919
3920 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3921 if (!found) {
3922 netdev_err(rocker_port->dev,
3923 "ifindex (%d) not found in internal VLAN tbl\n",
3924 ifindex);
3925 goto not_found;
3926 }
3927
3928 if (--found->ref_count <= 0) {
3929 bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE;
3930 clear_bit(bit, rocker->internal_vlan_bitmap);
3931 hash_del(&found->entry);
df6a2067 3932 kfree(found);
9f6bbf7c
SF		 3933 }
3934
3935not_found:
3936 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3937}
3938
c4f20321
SF		 3939static int rocker_port_fib_ipv4(struct rocker_port *rocker_port,
3940 enum switchdev_trans trans, __be32 dst,
e5054643
SH		 3941 int dst_len, const struct fib_info *fi,
3942 u32 tb_id, int flags)
c1beeef7 3943{
e5054643 3944 const struct fib_nh *nh;
c1beeef7
SF		 3945 __be16 eth_type = htons(ETH_P_IP);
3946 __be32 dst_mask = inet_make_mask(dst_len);
3947 __be16 internal_vlan_id = rocker_port->internal_vlan_id;
3948 u32 priority = fi->fib_priority;
3949 enum rocker_of_dpa_table_id goto_tbl =
3950 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3951 u32 group_id;
3952 bool nh_on_port;
3953 bool has_gw;
3954 u32 index;
3955 int err;
3956
3957 /* XXX support ECMP */
3958
3959 nh = fi->fib_nh;
3960 nh_on_port = (fi->fib_dev == rocker_port->dev);
3961 has_gw = !!nh->nh_gw;
3962
3963 if (has_gw && nh_on_port) {
c4f20321 3964 err = rocker_port_ipv4_nh(rocker_port, trans, flags,
c1beeef7
SF		 3965 nh->nh_gw, &index);
3966 if (err)
3967 return err;
3968
3969 group_id = ROCKER_GROUP_L3_UNICAST(index);
3970 } else {
3971 /* Send to CPU for processing */
3972 group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0);
3973 }
3974
c4f20321 3975 err = rocker_flow_tbl_ucast4_routing(rocker_port, trans, eth_type, dst,
c1beeef7
SF		 3976 dst_mask, priority, goto_tbl,
3977 group_id, flags);
3978 if (err)
3979 netdev_err(rocker_port->dev, "Error (%d) IPv4 route %pI4\n",
3980 err, &dst);
3981
3982 return err;
3983}
3984
4b8ac966
JP		 3985/*****************
3986 * Net device ops
3987 *****************/
3988
3989static int rocker_port_open(struct net_device *dev)
3990{
3991 struct rocker_port *rocker_port = netdev_priv(dev);
3992 int err;
3993
3994 err = rocker_port_dma_rings_init(rocker_port);
3995 if (err)
3996 return err;
3997
3998 err = request_irq(rocker_msix_tx_vector(rocker_port),
3999 rocker_tx_irq_handler, 0,
4000 rocker_driver_name, rocker_port);
4001 if (err) {
4002 netdev_err(rocker_port->dev, "cannot assign tx irq\n");
4003 goto err_request_tx_irq;
4004 }
4005
4006 err = request_irq(rocker_msix_rx_vector(rocker_port),
4007 rocker_rx_irq_handler, 0,
4008 rocker_driver_name, rocker_port);
4009 if (err) {
4010 netdev_err(rocker_port->dev, "cannot assign rx irq\n");
4011 goto err_request_rx_irq;
4012 }
4013
179f9a25 4014 err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE, 0);
6c707945 4015 if (err)
e47172ab 4016 goto err_fwd_enable;
6c707945 4017
4b8ac966
JP		 4018 napi_enable(&rocker_port->napi_tx);
4019 napi_enable(&rocker_port->napi_rx);
4020 rocker_port_set_enable(rocker_port, true);
4021 netif_start_queue(dev);
4022 return 0;
4023
e47172ab 4024err_fwd_enable:
6c707945 4025 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
4b8ac966
JP		 4026err_request_rx_irq:
4027 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
4028err_request_tx_irq:
4029 rocker_port_dma_rings_fini(rocker_port);
4030 return err;
4031}
4032
4033static int rocker_port_stop(struct net_device *dev)
4034{
4035 struct rocker_port *rocker_port = netdev_priv(dev);
4036
4037 netif_stop_queue(dev);
4038 rocker_port_set_enable(rocker_port, false);
4039 napi_disable(&rocker_port->napi_rx);
4040 napi_disable(&rocker_port->napi_tx);
179f9a25 4041 rocker_port_fwd_disable(rocker_port, SWITCHDEV_TRANS_NONE, 0);
4b8ac966
JP		 4042 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
4043 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
4044 rocker_port_dma_rings_fini(rocker_port);
4045
4046 return 0;
4047}
4048
e5054643
SH		 4049static void rocker_tx_desc_frags_unmap(const struct rocker_port *rocker_port,
4050 const struct rocker_desc_info *desc_info)
4b8ac966 4051{
e5054643 4052 const struct rocker *rocker = rocker_port->rocker;
4b8ac966 4053 struct pci_dev *pdev = rocker->pdev;
e5054643 4054 const struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1];
4b8ac966
JP		 4055 struct rocker_tlv *attr;
4056 int rem;
4057
4058 rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info);
4059 if (!attrs[ROCKER_TLV_TX_FRAGS])
4060 return;
4061 rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) {
e5054643 4062 const struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1];
4b8ac966
JP		 4063 dma_addr_t dma_handle;
4064 size_t len;
4065
4066 if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG)
4067 continue;
4068 rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX,
4069 attr);
4070 if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] ||
4071 !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN])
4072 continue;
4073 dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]);
4074 len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]);
4075 pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE);
4076 }
4077}
4078
e5054643 4079static int rocker_tx_desc_frag_map_put(const struct rocker_port *rocker_port,
4b8ac966
JP		 4080 struct rocker_desc_info *desc_info,
4081 char *buf, size_t buf_len)
4082{
e5054643 4083 const struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 4084 struct pci_dev *pdev = rocker->pdev;
4085 dma_addr_t dma_handle;
4086 struct rocker_tlv *frag;
4087
4088 dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE);
4089 if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) {
4090 if (net_ratelimit())
4091 netdev_err(rocker_port->dev, "failed to dma map tx frag\n");
4092 return -EIO;
4093 }
4094 frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG);
4095 if (!frag)
4096 goto unmap_frag;
4097 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR,
4098 dma_handle))
4099 goto nest_cancel;
4100 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN,
4101 buf_len))
4102 goto nest_cancel;
4103 rocker_tlv_nest_end(desc_info, frag);
4104 return 0;
4105
4106nest_cancel:
4107 rocker_tlv_nest_cancel(desc_info, frag);
4108unmap_frag:
4109 pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE);
4110 return -EMSGSIZE;
4111}
4112
4113static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev)
4114{
4115 struct rocker_port *rocker_port = netdev_priv(dev);
4116 struct rocker *rocker = rocker_port->rocker;
4117 struct rocker_desc_info *desc_info;
4118 struct rocker_tlv *frags;
4119 int i;
4120 int err;
4121
4122 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
4123 if (unlikely(!desc_info)) {
4124 if (net_ratelimit())
4125 netdev_err(dev, "tx ring full when queue awake\n");
4126 return NETDEV_TX_BUSY;
4127 }
4128
4129 rocker_desc_cookie_ptr_set(desc_info, skb);
4130
4131 frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS);
4132 if (!frags)
4133 goto out;
4134 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
4135 skb->data, skb_headlen(skb));
4136 if (err)
4137 goto nest_cancel;
4138 if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX)
4139 goto nest_cancel;
4140
4141 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4142 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
4143
4144 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
4145 skb_frag_address(frag),
4146 skb_frag_size(frag));
4147 if (err)
4148 goto unmap_frags;
4149 }
4150 rocker_tlv_nest_end(desc_info, frags);
4151
4152 rocker_desc_gen_clear(desc_info);
4153 rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info);
4154
4155 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
4156 if (!desc_info)
4157 netif_stop_queue(dev);
4158
4159 return NETDEV_TX_OK;
4160
4161unmap_frags:
4162 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
4163nest_cancel:
4164 rocker_tlv_nest_cancel(desc_info, frags);
4165out:
4166 dev_kfree_skb(skb);
f2bbca51
DA		 4167 dev->stats.tx_dropped++;
4168
4b8ac966
JP		 4169 return NETDEV_TX_OK;
4170}
4171
4172static int rocker_port_set_mac_address(struct net_device *dev, void *p)
4173{
4174 struct sockaddr *addr = p;
4175 struct rocker_port *rocker_port = netdev_priv(dev);
4176 int err;
4177
4178 if (!is_valid_ether_addr(addr->sa_data))
4179 return -EADDRNOTAVAIL;
4180
4181 err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data);
4182 if (err)
4183 return err;
4184 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
4185 return 0;
4186}
4187
db19170b
DA		 4188static int rocker_port_get_phys_port_name(struct net_device *dev,
4189 char *buf, size_t len)
4190{
4191 struct rocker_port *rocker_port = netdev_priv(dev);
4192 struct port_name name = { .buf = buf, .len = len };
4193 int err;
4194
179f9a25 4195 err = rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
db19170b
DA		 4196 rocker_cmd_get_port_settings_prep, NULL,
4197 rocker_cmd_get_port_settings_phys_name_proc,
c4f20321 4198 &name);
db19170b
DA		 4199
4200 return err ? -EOPNOTSUPP : 0;
4201}
4202
98237d43
SF		 4203static const struct net_device_ops rocker_port_netdev_ops = {
4204 .ndo_open = rocker_port_open,
4205 .ndo_stop = rocker_port_stop,
4206 .ndo_start_xmit = rocker_port_xmit,
4207 .ndo_set_mac_address = rocker_port_set_mac_address,
85fdb956 4208 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
fc8f40d8 4209 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
54ba5a0b 4210 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
45d4122c
SS		 4211 .ndo_fdb_add = switchdev_port_fdb_add,
4212 .ndo_fdb_del = switchdev_port_fdb_del,
4213 .ndo_fdb_dump = switchdev_port_fdb_dump,
db19170b 4214 .ndo_get_phys_port_name = rocker_port_get_phys_port_name,
98237d43
SF		 4215};
4216
4217/********************
4218 * swdev interface
4219 ********************/
4220
f8e20a9f
SF		 4221static int rocker_port_attr_get(struct net_device *dev,
4222 struct switchdev_attr *attr)
4b8ac966 4223{
e5054643
SH		 4224 const struct rocker_port *rocker_port = netdev_priv(dev);
4225 const struct rocker *rocker = rocker_port->rocker;
4b8ac966 4226
f8e20a9f
SF		 4227 switch (attr->id) {
4228 case SWITCHDEV_ATTR_PORT_PARENT_ID:
42275bd8
SF		 4229 attr->u.ppid.id_len = sizeof(rocker->hw.id);
4230 memcpy(&attr->u.ppid.id, &rocker->hw.id, attr->u.ppid.id_len);
f8e20a9f 4231 break;
6004c867 4232 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
42275bd8 4233 attr->u.brport_flags = rocker_port->brport_flags;
6004c867 4234 break;
f8e20a9f
SF		 4235 default:
4236 return -EOPNOTSUPP;
4237 }
4238
4b8ac966
JP		 4239 return 0;
4240}
4241
e5054643 4242static void rocker_port_trans_abort(const struct rocker_port *rocker_port)
c4f20321
SF		 4243{
4244 struct list_head *mem, *tmp;
4245
4246 list_for_each_safe(mem, tmp, &rocker_port->trans_mem) {
4247 list_del(mem);
4248 kfree(mem);
4249 }
4250}
4251
6004c867
SF		 4252static int rocker_port_brport_flags_set(struct rocker_port *rocker_port,
4253 enum switchdev_trans trans,
4254 unsigned long brport_flags)
4255{
4256 unsigned long orig_flags;
4257 int err = 0;
4258
4259 orig_flags = rocker_port->brport_flags;
4260 rocker_port->brport_flags = brport_flags;
4261 if ((orig_flags ^ rocker_port->brport_flags) & BR_LEARNING)
4262 err = rocker_port_set_learning(rocker_port, trans);
4263
4264 if (trans == SWITCHDEV_TRANS_PREPARE)
4265 rocker_port->brport_flags = orig_flags;
4266
4267 return err;
4268}
4269
c4f20321
SF		 4270static int rocker_port_attr_set(struct net_device *dev,
4271 struct switchdev_attr *attr)
4272{
4273 struct rocker_port *rocker_port = netdev_priv(dev);
4274 int err = 0;
4275
4276 switch (attr->trans) {
4277 case SWITCHDEV_TRANS_PREPARE:
4278 BUG_ON(!list_empty(&rocker_port->trans_mem));
4279 break;
4280 case SWITCHDEV_TRANS_ABORT:
4281 rocker_port_trans_abort(rocker_port);
4282 return 0;
4283 default:
4284 break;
4285 }
4286
4287 switch (attr->id) {
35636062 4288 case SWITCHDEV_ATTR_PORT_STP_STATE:
ac28393e
SF		 4289 err = rocker_port_stp_update(rocker_port, attr->trans,
4290 ROCKER_OP_FLAG_NOWAIT,
42275bd8 4291 attr->u.stp_state);
35636062 4292 break;
6004c867
SF		 4293 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
4294 err = rocker_port_brport_flags_set(rocker_port, attr->trans,
42275bd8 4295 attr->u.brport_flags);
6004c867 4296 break;
c4f20321
SF		 4297 default:
4298 err = -EOPNOTSUPP;
4299 break;
4300 }
4301
4302 return err;
6c707945
SF		 4303}
4304
9228ad26
SF		 4305static int rocker_port_vlan_add(struct rocker_port *rocker_port,
4306 enum switchdev_trans trans, u16 vid, u16 flags)
4307{
4308 int err;
4309
4310 /* XXX deal with flags for PVID and untagged */
4311
4312 err = rocker_port_vlan(rocker_port, trans, 0, vid);
4313 if (err)
4314 return err;
4315
cec04a60
SF		 4316 err = rocker_port_router_mac(rocker_port, trans, 0, htons(vid));
4317 if (err)
4318 rocker_port_vlan(rocker_port, trans,
4319 ROCKER_OP_FLAG_REMOVE, vid);
4320
4321 return err;
9228ad26
SF		 4322}
4323
4324static int rocker_port_vlans_add(struct rocker_port *rocker_port,
4325 enum switchdev_trans trans,
e5054643 4326 const struct switchdev_obj_vlan *vlan)
9228ad26
SF		 4327{
4328 u16 vid;
4329 int err;
4330
4331 for (vid = vlan->vid_start; vid <= vlan->vid_end; vid++) {
4332 err = rocker_port_vlan_add(rocker_port, trans,
4333 vid, vlan->flags);
4334 if (err)
4335 return err;
4336 }
4337
4338 return 0;
4339}
4340
45d4122c
SS		 4341static int rocker_port_fdb_add(struct rocker_port *rocker_port,
4342 enum switchdev_trans trans,
e5054643 4343 const struct switchdev_obj_fdb *fdb)
45d4122c
SS		 4344{
4345 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
4346 int flags = 0;
4347
4348 if (!rocker_port_is_bridged(rocker_port))
4349 return -EINVAL;
4350
4351 return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
4352}
4353
9228ad26
SF		 4354static int rocker_port_obj_add(struct net_device *dev,
4355 struct switchdev_obj *obj)
4356{
4357 struct rocker_port *rocker_port = netdev_priv(dev);
e5054643 4358 const struct switchdev_obj_ipv4_fib *fib4;
9228ad26
SF		 4359 int err = 0;
4360
4361 switch (obj->trans) {
4362 case SWITCHDEV_TRANS_PREPARE:
4363 BUG_ON(!list_empty(&rocker_port->trans_mem));
4364 break;
4365 case SWITCHDEV_TRANS_ABORT:
4366 rocker_port_trans_abort(rocker_port);
4367 return 0;
4368 default:
4369 break;
4370 }
4371
4372 switch (obj->id) {
4373 case SWITCHDEV_OBJ_PORT_VLAN:
4374 err = rocker_port_vlans_add(rocker_port, obj->trans,
42275bd8 4375 &obj->u.vlan);
9228ad26 4376 break;
58c2cb16 4377 case SWITCHDEV_OBJ_IPV4_FIB:
42275bd8 4378 fib4 = &obj->u.ipv4_fib;
58c2cb16 4379 err = rocker_port_fib_ipv4(rocker_port, obj->trans,
7a7ee531 4380 htonl(fib4->dst), fib4->dst_len,
58c2cb16
SF		 4381 fib4->fi, fib4->tb_id, 0);
4382 break;
45d4122c
SS		 4383 case SWITCHDEV_OBJ_PORT_FDB:
4384 err = rocker_port_fdb_add(rocker_port, obj->trans, &obj->u.fdb);
4385 break;
9228ad26
SF		 4386 default:
4387 err = -EOPNOTSUPP;
4388 break;
4389 }
4390
4391 return err;
4392}
4393
4394static int rocker_port_vlan_del(struct rocker_port *rocker_port,
4395 u16 vid, u16 flags)
4396{
4397 int err;
4398
4399 err = rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE,
4400 ROCKER_OP_FLAG_REMOVE, htons(vid));
4401 if (err)
4402 return err;
4403
4404 return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
4405 ROCKER_OP_FLAG_REMOVE, vid);
4406}
4407
4408static int rocker_port_vlans_del(struct rocker_port *rocker_port,
e5054643 4409 const struct switchdev_obj_vlan *vlan)
9228ad26
SF		 4410{
4411 u16 vid;
4412 int err;
4413
4414 for (vid = vlan->vid_start; vid <= vlan->vid_end; vid++) {
4415 err = rocker_port_vlan_del(rocker_port, vid, vlan->flags);
4416 if (err)
4417 return err;
4418 }
4419
4420 return 0;
4421}
4422
45d4122c
SS		 4423static int rocker_port_fdb_del(struct rocker_port *rocker_port,
4424 enum switchdev_trans trans,
e5054643 4425 const struct switchdev_obj_fdb *fdb)
45d4122c
SS		 4426{
4427 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
4428 int flags = ROCKER_OP_FLAG_REMOVE;
4429
4430 if (!rocker_port_is_bridged(rocker_port))
4431 return -EINVAL;
4432
4433 return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
4434}
4435
9228ad26
SF		 4436static int rocker_port_obj_del(struct net_device *dev,
4437 struct switchdev_obj *obj)
4438{
4439 struct rocker_port *rocker_port = netdev_priv(dev);
e5054643 4440 const struct switchdev_obj_ipv4_fib *fib4;
9228ad26
SF		 4441 int err = 0;
4442
4443 switch (obj->id) {
4444 case SWITCHDEV_OBJ_PORT_VLAN:
42275bd8 4445 err = rocker_port_vlans_del(rocker_port, &obj->u.vlan);
9228ad26 4446 break;
58c2cb16 4447 case SWITCHDEV_OBJ_IPV4_FIB:
42275bd8 4448 fib4 = &obj->u.ipv4_fib;
58c2cb16 4449 err = rocker_port_fib_ipv4(rocker_port, SWITCHDEV_TRANS_NONE,
7a7ee531
SF		 4450 htonl(fib4->dst), fib4->dst_len,
4451 fib4->fi, fib4->tb_id,
4452 ROCKER_OP_FLAG_REMOVE);
58c2cb16 4453 break;
45d4122c
SS		 4454 case SWITCHDEV_OBJ_PORT_FDB:
4455 err = rocker_port_fdb_del(rocker_port, obj->trans, &obj->u.fdb);
4456 break;
4457 default:
4458 err = -EOPNOTSUPP;
4459 break;
4460 }
4461
4462 return err;
4463}
4464
e5054643 4465static int rocker_port_fdb_dump(const struct rocker_port *rocker_port,
45d4122c
SS		 4466 struct switchdev_obj *obj)
4467{
4468 struct rocker *rocker = rocker_port->rocker;
4469 struct switchdev_obj_fdb *fdb = &obj->u.fdb;
4470 struct rocker_fdb_tbl_entry *found;
4471 struct hlist_node *tmp;
4472 unsigned long lock_flags;
4473 int bkt;
4474 int err = 0;
4475
4476 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
4477 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
4478 if (found->key.pport != rocker_port->pport)
4479 continue;
4480 fdb->addr = found->key.addr;
4481 fdb->vid = rocker_port_vlan_to_vid(rocker_port,
4482 found->key.vlan_id);
4483 err = obj->cb(rocker_port->dev, obj);
4484 if (err)
4485 break;
4486 }
4487 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
4488
4489 return err;
4490}
4491
4492static int rocker_port_obj_dump(struct net_device *dev,
4493 struct switchdev_obj *obj)
4494{
e5054643 4495 const struct rocker_port *rocker_port = netdev_priv(dev);
45d4122c
SS		 4496 int err = 0;
4497
4498 switch (obj->id) {
4499 case SWITCHDEV_OBJ_PORT_FDB:
4500 err = rocker_port_fdb_dump(rocker_port, obj);
4501 break;
9228ad26
SF		 4502 default:
4503 err = -EOPNOTSUPP;
4504 break;
4505 }
4506
4507 return err;
4508}
4509
9d47c0a2 4510static const struct switchdev_ops rocker_port_switchdev_ops = {
f8e20a9f 4511 .switchdev_port_attr_get = rocker_port_attr_get,
35636062 4512 .switchdev_port_attr_set = rocker_port_attr_set,
9228ad26
SF		 4513 .switchdev_port_obj_add = rocker_port_obj_add,
4514 .switchdev_port_obj_del = rocker_port_obj_del,
45d4122c 4515 .switchdev_port_obj_dump = rocker_port_obj_dump,
4b8ac966
JP		 4516};
4517
4518/********************
4519 * ethtool interface
4520 ********************/
4521
4522static int rocker_port_get_settings(struct net_device *dev,
4523 struct ethtool_cmd *ecmd)
4524{
4525 struct rocker_port *rocker_port = netdev_priv(dev);
4526
4527 return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd);
4528}
4529
4530static int rocker_port_set_settings(struct net_device *dev,
4531 struct ethtool_cmd *ecmd)
4532{
4533 struct rocker_port *rocker_port = netdev_priv(dev);
4534
4535 return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd);
4536}
4537
4538static void rocker_port_get_drvinfo(struct net_device *dev,
4539 struct ethtool_drvinfo *drvinfo)
4540{
4541 strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver));
4542 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
4543}
4544
9766e97a
DA		 4545static struct rocker_port_stats {
4546 char str[ETH_GSTRING_LEN];
4547 int type;
4548} rocker_port_stats[] = {
4549 { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, },
4550 { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, },
4551 { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, },
4552 { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, },
4553
4554 { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, },
4555 { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, },
4556 { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, },
4557 { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, },
4558};
4559
4560#define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats)
4561
4562static void rocker_port_get_strings(struct net_device *netdev, u32 stringset,
4563 u8 *data)
4564{
4565 u8 *p = data;
4566 int i;
4567
4568 switch (stringset) {
4569 case ETH_SS_STATS:
4570 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4571 memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN);
4572 p += ETH_GSTRING_LEN;
4573 }
4574 break;
4575 }
4576}
4577
4578static int
534ba6a8 4579rocker_cmd_get_port_stats_prep(const struct rocker_port *rocker_port,
9766e97a
DA		 4580 struct rocker_desc_info *desc_info,
4581 void *priv)
4582{
4583 struct rocker_tlv *cmd_stats;
4584
4585 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
4586 ROCKER_TLV_CMD_TYPE_GET_PORT_STATS))
4587 return -EMSGSIZE;
4588
4589 cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
4590 if (!cmd_stats)
4591 return -EMSGSIZE;
4592
4a6bb6d3
SF		 4593 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT,
4594 rocker_port->pport))
9766e97a
DA		 4595 return -EMSGSIZE;
4596
4597 rocker_tlv_nest_end(desc_info, cmd_stats);
4598
4599 return 0;
4600}
4601
4602static int
534ba6a8 4603rocker_cmd_get_port_stats_ethtool_proc(const struct rocker_port *rocker_port,
e5054643 4604 const struct rocker_desc_info *desc_info,
9766e97a
DA		 4605 void *priv)
4606{
e5054643
SH		 4607 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
4608 const struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1];
4609 const struct rocker_tlv *pattr;
4a6bb6d3 4610 u32 pport;
9766e97a
DA		 4611 u64 *data = priv;
4612 int i;
4613
4614 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
4615
4616 if (!attrs[ROCKER_TLV_CMD_INFO])
4617 return -EIO;
4618
4619 rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX,
4620 attrs[ROCKER_TLV_CMD_INFO]);
4621
4a6bb6d3 4622 if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT])
9766e97a
DA		 4623 return -EIO;
4624
4a6bb6d3
SF		 4625 pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]);
4626 if (pport != rocker_port->pport)
9766e97a
DA		 4627 return -EIO;
4628
4629 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4630 pattr = stats_attrs[rocker_port_stats[i].type];
4631 if (!pattr)
4632 continue;
4633
4634 data[i] = rocker_tlv_get_u64(pattr);
4635 }
4636
4637 return 0;
4638}
4639
4640static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port,
4641 void *priv)
4642{
179f9a25 4643 return rocker_cmd_exec(rocker_port, SWITCHDEV_TRANS_NONE, 0,
9766e97a
DA		 4644 rocker_cmd_get_port_stats_prep, NULL,
4645 rocker_cmd_get_port_stats_ethtool_proc,
c4f20321 4646 priv);
9766e97a
DA		 4647}
4648
4649static void rocker_port_get_stats(struct net_device *dev,
4650 struct ethtool_stats *stats, u64 *data)
4651{
4652 struct rocker_port *rocker_port = netdev_priv(dev);
4653
4654 if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) {
4655 int i;
4656
4657 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i)
4658 data[i] = 0;
4659 }
9766e97a
DA		 4660}
4661
4662static int rocker_port_get_sset_count(struct net_device *netdev, int sset)
4663{
4664 switch (sset) {
4665 case ETH_SS_STATS:
4666 return ROCKER_PORT_STATS_LEN;
4667 default:
4668 return -EOPNOTSUPP;
4669 }
4670}
4671
4b8ac966
JP		 4672static const struct ethtool_ops rocker_port_ethtool_ops = {
4673 .get_settings = rocker_port_get_settings,
4674 .set_settings = rocker_port_set_settings,
4675 .get_drvinfo = rocker_port_get_drvinfo,
4676 .get_link = ethtool_op_get_link,
9766e97a
DA		 4677 .get_strings = rocker_port_get_strings,
4678 .get_ethtool_stats = rocker_port_get_stats,
4679 .get_sset_count = rocker_port_get_sset_count,
4b8ac966
JP		 4680};
4681
4682/*****************
4683 * NAPI interface
4684 *****************/
4685
4686static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi)
4687{
4688 return container_of(napi, struct rocker_port, napi_tx);
4689}
4690
4691static int rocker_port_poll_tx(struct napi_struct *napi, int budget)
4692{
4693 struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi);
e5054643
SH		 4694 const struct rocker *rocker = rocker_port->rocker;
4695 const struct rocker_desc_info *desc_info;
4b8ac966
JP		 4696 u32 credits = 0;
4697 int err;
4698
4699 /* Cleanup tx descriptors */
4700 while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) {
f2bbca51
DA		 4701 struct sk_buff *skb;
4702
4b8ac966
JP		 4703 err = rocker_desc_err(desc_info);
4704 if (err && net_ratelimit())
4705 netdev_err(rocker_port->dev, "tx desc received with err %d\n",
4706 err);
4707 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
f2bbca51
DA		 4708
4709 skb = rocker_desc_cookie_ptr_get(desc_info);
4710 if (err == 0) {
4711 rocker_port->dev->stats.tx_packets++;
4712 rocker_port->dev->stats.tx_bytes += skb->len;
4725ceb9 4713 } else {
f2bbca51 4714 rocker_port->dev->stats.tx_errors++;
4725ceb9 4715 }
f2bbca51
DA		 4716
4717 dev_kfree_skb_any(skb);
4b8ac966
JP		 4718 credits++;
4719 }
4720
4721 if (credits && netif_queue_stopped(rocker_port->dev))
4722 netif_wake_queue(rocker_port->dev);
4723
4724 napi_complete(napi);
4725 rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits);
4726
4727 return 0;
4728}
4729
e5054643
SH		 4730static int rocker_port_rx_proc(const struct rocker *rocker,
4731 const struct rocker_port *rocker_port,
4b8ac966
JP		 4732 struct rocker_desc_info *desc_info)
4733{
e5054643 4734 const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
4b8ac966
JP		 4735 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
4736 size_t rx_len;
4737
4738 if (!skb)
4739 return -ENOENT;
4740
4741 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
4742 if (!attrs[ROCKER_TLV_RX_FRAG_LEN])
4743 return -EINVAL;
4744
4745 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
4746
4747 rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]);
4748 skb_put(skb, rx_len);
4749 skb->protocol = eth_type_trans(skb, rocker_port->dev);
f2bbca51
DA		 4750
4751 rocker_port->dev->stats.rx_packets++;
4752 rocker_port->dev->stats.rx_bytes += skb->len;
4753
4b8ac966
JP		 4754 netif_receive_skb(skb);
4755
534ba6a8 4756 return rocker_dma_rx_ring_skb_alloc(rocker_port, desc_info);
4b8ac966
JP		 4757}
4758
4759static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi)
4760{
4761 return container_of(napi, struct rocker_port, napi_rx);
4762}
4763
4764static int rocker_port_poll_rx(struct napi_struct *napi, int budget)
4765{
4766 struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi);
e5054643 4767 const struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 4768 struct rocker_desc_info *desc_info;
4769 u32 credits = 0;
4770 int err;
4771
4772 /* Process rx descriptors */
4773 while (credits < budget &&
4774 (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) {
4775 err = rocker_desc_err(desc_info);
4776 if (err) {
4777 if (net_ratelimit())
4778 netdev_err(rocker_port->dev, "rx desc received with err %d\n",
4779 err);
4780 } else {
4781 err = rocker_port_rx_proc(rocker, rocker_port,
4782 desc_info);
4783 if (err && net_ratelimit())
4784 netdev_err(rocker_port->dev, "rx processing failed with err %d\n",
4785 err);
4786 }
f2bbca51
DA		 4787 if (err)
4788 rocker_port->dev->stats.rx_errors++;
4789
4b8ac966
JP		 4790 rocker_desc_gen_clear(desc_info);
4791 rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info);
4792 credits++;
4793 }
4794
4795 if (credits < budget)
4796 napi_complete(napi);
4797
4798 rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits);
4799
4800 return credits;
4801}
4802
4803/*****************
4804 * PCI driver ops
4805 *****************/
4806
e5054643 4807static void rocker_carrier_init(const struct rocker_port *rocker_port)
4b8ac966 4808{
e5054643 4809 const struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 4810 u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS);
4811 bool link_up;
4812
4a6bb6d3 4813 link_up = link_status & (1 << rocker_port->pport);
4b8ac966
JP		 4814 if (link_up)
4815 netif_carrier_on(rocker_port->dev);
4816 else
4817 netif_carrier_off(rocker_port->dev);
4818}
4819
e5054643 4820static void rocker_remove_ports(const struct rocker *rocker)
4b8ac966 4821{
9f6bbf7c 4822 struct rocker_port *rocker_port;
4b8ac966
JP		 4823 int i;
4824
9f6bbf7c
SF		 4825 for (i = 0; i < rocker->port_count; i++) {
4826 rocker_port = rocker->ports[i];
a0720310
SF		 4827 if (!rocker_port)
4828 continue;
c4f20321
SF		 4829 rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE,
4830 ROCKER_OP_FLAG_REMOVE);
9f6bbf7c
SF		 4831 unregister_netdev(rocker_port->dev);
4832 }
4b8ac966
JP		 4833 kfree(rocker->ports);
4834}
4835
534ba6a8 4836static void rocker_port_dev_addr_init(struct rocker_port *rocker_port)
4b8ac966 4837{
534ba6a8 4838 const struct rocker *rocker = rocker_port->rocker;
e5054643 4839 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 4840 int err;
4841
4842 err = rocker_cmd_get_port_settings_macaddr(rocker_port,
4843 rocker_port->dev->dev_addr);
4844 if (err) {
4845 dev_warn(&pdev->dev, "failed to get mac address, using random\n");
4846 eth_hw_addr_random(rocker_port->dev);
4847 }
4848}
4849
4850static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
4851{
e5054643 4852 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 4853 struct rocker_port *rocker_port;
4854 struct net_device *dev;
bcfd7801 4855 u16 untagged_vid = 0;
4b8ac966
JP		 4856 int err;
4857
4858 dev = alloc_etherdev(sizeof(struct rocker_port));
4859 if (!dev)
4860 return -ENOMEM;
4861 rocker_port = netdev_priv(dev);
4862 rocker_port->dev = dev;
4863 rocker_port->rocker = rocker;
4864 rocker_port->port_number = port_number;
4a6bb6d3 4865 rocker_port->pport = port_number + 1;
5111f80c 4866 rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC;
c4f20321 4867 INIT_LIST_HEAD(&rocker_port->trans_mem);
4b8ac966 4868
534ba6a8 4869 rocker_port_dev_addr_init(rocker_port);
4b8ac966
JP		 4870 dev->netdev_ops = &rocker_port_netdev_ops;
4871 dev->ethtool_ops = &rocker_port_ethtool_ops;
9d47c0a2 4872 dev->switchdev_ops = &rocker_port_switchdev_ops;
4b8ac966
JP		 4873 netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx,
4874 NAPI_POLL_WEIGHT);
4875 netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx,
4876 NAPI_POLL_WEIGHT);
4877 rocker_carrier_init(rocker_port);
4878
2aa2ed08 4879 dev->features |= NETIF_F_NETNS_LOCAL;
4b8ac966
JP		 4880
4881 err = register_netdev(dev);
4882 if (err) {
4883 dev_err(&pdev->dev, "register_netdev failed\n");
4884 goto err_register_netdev;
4885 }
4886 rocker->ports[port_number] = rocker_port;
4887
c4f20321 4888 rocker_port_set_learning(rocker_port, SWITCHDEV_TRANS_NONE);
5111f80c 4889
c4f20321 4890 err = rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, 0);
9f6bbf7c
SF		 4891 if (err) {
4892 dev_err(&pdev->dev, "install ig port table failed\n");
4893 goto err_port_ig_tbl;
4894 }
4895
bcfd7801
SF		 4896 rocker_port->internal_vlan_id =
4897 rocker_port_internal_vlan_id_get(rocker_port, dev->ifindex);
4898
4899 err = rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE,
4900 untagged_vid, 0);
4901 if (err) {
4902 netdev_err(rocker_port->dev, "install untagged VLAN failed\n");
4903 goto err_untagged_vlan;
4904 }
4905
4b8ac966
JP		 4906 return 0;
4907
bcfd7801
SF		 4908err_untagged_vlan:
4909 rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE,
4910 ROCKER_OP_FLAG_REMOVE);
9f6bbf7c
SF		 4911err_port_ig_tbl:
4912 unregister_netdev(dev);
4b8ac966
JP		 4913err_register_netdev:
4914 free_netdev(dev);
4915 return err;
4916}
4917
4918static int rocker_probe_ports(struct rocker *rocker)
4919{
4920 int i;
4921 size_t alloc_size;
4922 int err;
4923
4924 alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
27b808cb 4925 rocker->ports = kzalloc(alloc_size, GFP_KERNEL);
e65ad3be
DC		 4926 if (!rocker->ports)
4927 return -ENOMEM;
4b8ac966
JP		 4928 for (i = 0; i < rocker->port_count; i++) {
4929 err = rocker_probe_port(rocker, i);
4930 if (err)
4931 goto remove_ports;
4932 }
4933 return 0;
4934
4935remove_ports:
4936 rocker_remove_ports(rocker);
4937 return err;
4938}
4939
4940static int rocker_msix_init(struct rocker *rocker)
4941{
4942 struct pci_dev *pdev = rocker->pdev;
4943 int msix_entries;
4944 int i;
4945 int err;
4946
4947 msix_entries = pci_msix_vec_count(pdev);
4948 if (msix_entries < 0)
4949 return msix_entries;
4950
4951 if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count))
4952 return -EINVAL;
4953
4954 rocker->msix_entries = kmalloc_array(msix_entries,
4955 sizeof(struct msix_entry),
4956 GFP_KERNEL);
4957 if (!rocker->msix_entries)
4958 return -ENOMEM;
4959
4960 for (i = 0; i < msix_entries; i++)
4961 rocker->msix_entries[i].entry = i;
4962
4963 err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries);
4964 if (err < 0)
4965 goto err_enable_msix;
4966
4967 return 0;
4968
4969err_enable_msix:
4970 kfree(rocker->msix_entries);
4971 return err;
4972}
4973
e5054643 4974static void rocker_msix_fini(const struct rocker *rocker)
4b8ac966
JP		 4975{
4976 pci_disable_msix(rocker->pdev);
4977 kfree(rocker->msix_entries);
4978}
4979
4980static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
4981{
4982 struct rocker *rocker;
4983 int err;
4984
4985 rocker = kzalloc(sizeof(*rocker), GFP_KERNEL);
4986 if (!rocker)
4987 return -ENOMEM;
4988
4989 err = pci_enable_device(pdev);
4990 if (err) {
4991 dev_err(&pdev->dev, "pci_enable_device failed\n");
4992 goto err_pci_enable_device;
4993 }
4994
4995 err = pci_request_regions(pdev, rocker_driver_name);
4996 if (err) {
4997 dev_err(&pdev->dev, "pci_request_regions failed\n");
4998 goto err_pci_request_regions;
4999 }
5000
5001 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
5002 if (!err) {
5003 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
5004 if (err) {
5005 dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n");
5006 goto err_pci_set_dma_mask;
5007 }
5008 } else {
5009 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
5010 if (err) {
5011 dev_err(&pdev->dev, "pci_set_dma_mask failed\n");
5012 goto err_pci_set_dma_mask;
5013 }
5014 }
5015
5016 if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) {
5017 dev_err(&pdev->dev, "invalid PCI region size\n");
3122a92e 5018 err = -EINVAL;
4b8ac966
JP		 5019 goto err_pci_resource_len_check;
5020 }
5021
5022 rocker->hw_addr = ioremap(pci_resource_start(pdev, 0),
5023 pci_resource_len(pdev, 0));
5024 if (!rocker->hw_addr) {
5025 dev_err(&pdev->dev, "ioremap failed\n");
5026 err = -EIO;
5027 goto err_ioremap;
5028 }
5029 pci_set_master(pdev);
5030
5031 rocker->pdev = pdev;
5032 pci_set_drvdata(pdev, rocker);
5033
5034 rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT);
5035
5036 err = rocker_msix_init(rocker);
5037 if (err) {
5038 dev_err(&pdev->dev, "MSI-X init failed\n");
5039 goto err_msix_init;
5040 }
5041
5042 err = rocker_basic_hw_test(rocker);
5043 if (err) {
5044 dev_err(&pdev->dev, "basic hw test failed\n");
5045 goto err_basic_hw_test;
5046 }
5047
5048 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
5049
5050 err = rocker_dma_rings_init(rocker);
5051 if (err)
5052 goto err_dma_rings_init;
5053
5054 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD),
5055 rocker_cmd_irq_handler, 0,
5056 rocker_driver_name, rocker);
5057 if (err) {
5058 dev_err(&pdev->dev, "cannot assign cmd irq\n");
5059 goto err_request_cmd_irq;
5060 }
5061
5062 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT),
5063 rocker_event_irq_handler, 0,
5064 rocker_driver_name, rocker);
5065 if (err) {
5066 dev_err(&pdev->dev, "cannot assign event irq\n");
5067 goto err_request_event_irq;
5068 }
5069
5070 rocker->hw.id = rocker_read64(rocker, SWITCH_ID);
5071
9f6bbf7c
SF		 5072 err = rocker_init_tbls(rocker);
5073 if (err) {
5074 dev_err(&pdev->dev, "cannot init rocker tables\n");
5075 goto err_init_tbls;
5076 }
5077
4b8ac966
JP		 5078 err = rocker_probe_ports(rocker);
5079 if (err) {
5080 dev_err(&pdev->dev, "failed to probe ports\n");
5081 goto err_probe_ports;
5082 }
5083
5084 dev_info(&pdev->dev, "Rocker switch with id %016llx\n", rocker->hw.id);
5085
5086 return 0;
5087
5088err_probe_ports:
9f6bbf7c
SF		 5089 rocker_free_tbls(rocker);
5090err_init_tbls:
4b8ac966
JP		 5091 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
5092err_request_event_irq:
5093 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
5094err_request_cmd_irq:
5095 rocker_dma_rings_fini(rocker);
5096err_dma_rings_init:
5097err_basic_hw_test:
5098 rocker_msix_fini(rocker);
5099err_msix_init:
5100 iounmap(rocker->hw_addr);
5101err_ioremap:
5102err_pci_resource_len_check:
5103err_pci_set_dma_mask:
5104 pci_release_regions(pdev);
5105err_pci_request_regions:
5106 pci_disable_device(pdev);
5107err_pci_enable_device:
5108 kfree(rocker);
5109 return err;
5110}
5111
5112static void rocker_remove(struct pci_dev *pdev)
5113{
5114 struct rocker *rocker = pci_get_drvdata(pdev);
5115
9f6bbf7c 5116 rocker_free_tbls(rocker);
4b8ac966
JP		 5117 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
5118 rocker_remove_ports(rocker);
5119 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
5120 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
5121 rocker_dma_rings_fini(rocker);
5122 rocker_msix_fini(rocker);
5123 iounmap(rocker->hw_addr);
5124 pci_release_regions(rocker->pdev);
5125 pci_disable_device(rocker->pdev);
5126 kfree(rocker);
5127}
5128
5129static struct pci_driver rocker_pci_driver = {
5130 .name = rocker_driver_name,
5131 .id_table = rocker_pci_id_table,
5132 .probe = rocker_probe,
5133 .remove = rocker_remove,
5134};
5135
6c707945
SF		 5136/************************************
5137 * Net device notifier event handler
5138 ************************************/
5139
e5054643 5140static bool rocker_port_dev_check(const struct net_device *dev)
6c707945
SF		 5141{
5142 return dev->netdev_ops == &rocker_port_netdev_ops;
5143}
5144
5145static int rocker_port_bridge_join(struct rocker_port *rocker_port,
5146 struct net_device *bridge)
5147{
027e00dc 5148 u16 untagged_vid = 0;
6c707945
SF		 5149 int err;
5150
027e00dc
SF		 5151 /* Port is joining bridge, so the internal VLAN for the
5152 * port is going to change to the bridge internal VLAN.
5153 * Let's remove untagged VLAN (vid=0) from port and
5154 * re-add once internal VLAN has changed.
5155 */
6c707945 5156
027e00dc 5157 err = rocker_port_vlan_del(rocker_port, untagged_vid, 0);
6c707945
SF		 5158 if (err)
5159 return err;
027e00dc
SF		 5160
5161 rocker_port_internal_vlan_id_put(rocker_port,
5162 rocker_port->dev->ifindex);
6c707945 5163 rocker_port->internal_vlan_id =
df6a2067 5164 rocker_port_internal_vlan_id_get(rocker_port, bridge->ifindex);
027e00dc
SF		 5165
5166 rocker_port->bridge_dev = bridge;
5167
5168 return rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE,
5169 untagged_vid, 0);
6c707945
SF		 5170}
5171
5172static int rocker_port_bridge_leave(struct rocker_port *rocker_port)
5173{
027e00dc 5174 u16 untagged_vid = 0;
6c707945
SF		 5175 int err;
5176
027e00dc 5177 err = rocker_port_vlan_del(rocker_port, untagged_vid, 0);
6c707945
SF		 5178 if (err)
5179 return err;
027e00dc
SF		 5180
5181 rocker_port_internal_vlan_id_put(rocker_port,
5182 rocker_port->bridge_dev->ifindex);
6c707945
SF		 5183 rocker_port->internal_vlan_id =
5184 rocker_port_internal_vlan_id_get(rocker_port,
5185 rocker_port->dev->ifindex);
027e00dc
SF		 5186
5187 rocker_port->bridge_dev = NULL;
5188
5189 err = rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE,
5190 untagged_vid, 0);
e47172ab
SF		 5191 if (err)
5192 return err;
5193
5194 if (rocker_port->dev->flags & IFF_UP)
179f9a25
SF		 5195 err = rocker_port_fwd_enable(rocker_port,
5196 SWITCHDEV_TRANS_NONE, 0);
6c707945
SF		 5197
5198 return err;
5199}
5200
5201static int rocker_port_master_changed(struct net_device *dev)
5202{
5203 struct rocker_port *rocker_port = netdev_priv(dev);
5204 struct net_device *master = netdev_master_upper_dev_get(dev);
5205 int err = 0;
5206
a6e95cc7
SH		 5207 /* There are currently three cases handled here:
5208 * 1. Joining a bridge
5209 * 2. Leaving a previously joined bridge
5210 * 3. Other, e.g. being added to or removed from a bond or openvswitch,
5211 * in which case nothing is done
5212 */
6c707945
SF		 5213 if (master && master->rtnl_link_ops &&
5214 !strcmp(master->rtnl_link_ops->kind, "bridge"))
5215 err = rocker_port_bridge_join(rocker_port, master);
a6e95cc7 5216 else if (rocker_port_is_bridged(rocker_port))
6c707945
SF		 5217 err = rocker_port_bridge_leave(rocker_port);
5218
5219 return err;
5220}
5221
5222static int rocker_netdevice_event(struct notifier_block *unused,
5223 unsigned long event, void *ptr)
5224{
5225 struct net_device *dev;
5226 int err;
5227
5228 switch (event) {
5229 case NETDEV_CHANGEUPPER:
5230 dev = netdev_notifier_info_to_dev(ptr);
5231 if (!rocker_port_dev_check(dev))
5232 return NOTIFY_DONE;
5233 err = rocker_port_master_changed(dev);
5234 if (err)
5235 netdev_warn(dev,
5236 "failed to reflect master change (err %d)\n",
5237 err);
5238 break;
5239 }
5240
5241 return NOTIFY_DONE;
5242}
5243
5244static struct notifier_block rocker_netdevice_nb __read_mostly = {
5245 .notifier_call = rocker_netdevice_event,
5246};
5247
c1beeef7
SF		 5248/************************************
5249 * Net event notifier event handler
5250 ************************************/
5251
5252static int rocker_neigh_update(struct net_device *dev, struct neighbour *n)
5253{
5254 struct rocker_port *rocker_port = netdev_priv(dev);
02a9fbfc
SF		 5255 int flags = (n->nud_state & NUD_VALID ? 0 : ROCKER_OP_FLAG_REMOVE) |
5256 ROCKER_OP_FLAG_NOWAIT;
c1beeef7
SF		 5257 __be32 ip_addr = *(__be32 *)n->primary_key;
5258
c4f20321
SF		 5259 return rocker_port_ipv4_neigh(rocker_port, SWITCHDEV_TRANS_NONE,
5260 flags, ip_addr, n->ha);
c1beeef7
SF		 5261}
5262
5263static int rocker_netevent_event(struct notifier_block *unused,
5264 unsigned long event, void *ptr)
5265{
5266 struct net_device *dev;
5267 struct neighbour *n = ptr;
5268 int err;
5269
5270 switch (event) {
5271 case NETEVENT_NEIGH_UPDATE:
5272 if (n->tbl != &arp_tbl)
5273 return NOTIFY_DONE;
5274 dev = n->dev;
5275 if (!rocker_port_dev_check(dev))
5276 return NOTIFY_DONE;
5277 err = rocker_neigh_update(dev, n);
5278 if (err)
5279 netdev_warn(dev,
5280 "failed to handle neigh update (err %d)\n",
5281 err);
5282 break;
5283 }
5284
5285 return NOTIFY_DONE;
5286}
5287
5288static struct notifier_block rocker_netevent_nb __read_mostly = {
5289 .notifier_call = rocker_netevent_event,
5290};
5291
4b8ac966
JP		 5292/***********************
5293 * Module init and exit
5294 ***********************/
5295
5296static int __init rocker_module_init(void)
5297{
6c707945
SF		 5298 int err;
5299
5300 register_netdevice_notifier(&rocker_netdevice_nb);
c1beeef7 5301 register_netevent_notifier(&rocker_netevent_nb);
6c707945
SF		 5302 err = pci_register_driver(&rocker_pci_driver);
5303 if (err)
5304 goto err_pci_register_driver;
5305 return 0;
5306
5307err_pci_register_driver:
c1beeef7 5308 unregister_netdevice_notifier(&rocker_netevent_nb);
6c707945
SF		 5309 unregister_netdevice_notifier(&rocker_netdevice_nb);
5310 return err;
4b8ac966
JP		 5311}
5312
5313static void __exit rocker_module_exit(void)
5314{
c1beeef7 5315 unregister_netevent_notifier(&rocker_netevent_nb);
6c707945 5316 unregister_netdevice_notifier(&rocker_netdevice_nb);
4b8ac966
JP		 5317 pci_unregister_driver(&rocker_pci_driver);
5318}
5319
5320module_init(rocker_module_init);
5321module_exit(rocker_module_exit);
5322
5323MODULE_LICENSE("GPL v2");
5324MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
5325MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
5326MODULE_DESCRIPTION("Rocker switch device driver");
5327MODULE_DEVICE_TABLE(pci, rocker_pci_id_table);
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