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bnx2x: Alloc 4k fragment for each rx ring buffer element
[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
c4f20321
SF		 329static void *__rocker_port_mem_alloc(struct rocker_port *rocker_port,
330 enum switchdev_trans trans, size_t size)
331{
332 struct list_head *elem = NULL;
333
334 /* If in transaction prepare phase, allocate the memory
335 * and enqueue it on a per-port list. If in transaction
336 * commit phase, dequeue the memory from the per-port list
337 * rather than re-allocating the memory. The idea is the
338 * driver code paths for prepare and commit are identical
339 * so the memory allocated in the prepare phase is the
340 * memory used in the commit phase.
341 */
342
343 switch (trans) {
344 case SWITCHDEV_TRANS_PREPARE:
345 elem = kzalloc(size + sizeof(*elem), GFP_KERNEL);
346 if (!elem)
347 return NULL;
348 list_add_tail(elem, &rocker_port->trans_mem);
349 break;
350 case SWITCHDEV_TRANS_COMMIT:
351 BUG_ON(list_empty(&rocker_port->trans_mem));
352 elem = rocker_port->trans_mem.next;
353 list_del_init(elem);
354 break;
355 case SWITCHDEV_TRANS_NONE:
356 elem = kzalloc(size + sizeof(*elem), GFP_KERNEL);
357 if (elem)
358 INIT_LIST_HEAD(elem);
359 break;
360 default:
361 break;
362 }
363
364 return elem ? elem + 1 : NULL;
365}
366
367static void *rocker_port_kzalloc(struct rocker_port *rocker_port,
368 enum switchdev_trans trans, size_t size)
369{
370 return __rocker_port_mem_alloc(rocker_port, trans, size);
371}
372
373static void *rocker_port_kcalloc(struct rocker_port *rocker_port,
374 enum switchdev_trans trans, size_t n,
375 size_t size)
376{
377 return __rocker_port_mem_alloc(rocker_port, trans, n * size);
378}
379
0985df73 380static void rocker_port_kfree(enum switchdev_trans trans, const void *mem)
c4f20321
SF		 381{
382 struct list_head *elem;
383
384 /* Frees are ignored if in transaction prepare phase. The
385 * memory remains on the per-port list until freed in the
386 * commit phase.
387 */
388
389 if (trans == SWITCHDEV_TRANS_PREPARE)
390 return;
391
392 elem = (struct list_head *)mem - 1;
393 BUG_ON(!list_empty(elem));
394 kfree(elem);
395}
396
4b8ac966
JP		 397struct rocker_wait {
398 wait_queue_head_t wait;
399 bool done;
4b8ac966
JP		 400};
401
402static void rocker_wait_reset(struct rocker_wait *wait)
403{
404 wait->done = false;
4b8ac966
JP		 405}
406
407static void rocker_wait_init(struct rocker_wait *wait)
408{
409 init_waitqueue_head(&wait->wait);
410 rocker_wait_reset(wait);
411}
412
c4f20321
SF		 413static struct rocker_wait *rocker_wait_create(struct rocker_port *rocker_port,
414 enum switchdev_trans trans)
4b8ac966
JP		 415{
416 struct rocker_wait *wait;
417
c4f20321 418 wait = rocker_port_kzalloc(rocker_port, trans, sizeof(*wait));
4b8ac966
JP		 419 if (!wait)
420 return NULL;
421 rocker_wait_init(wait);
422 return wait;
423}
424
0985df73 425static void rocker_wait_destroy(enum switchdev_trans trans,
c4f20321 426 struct rocker_wait *wait)
4b8ac966 427{
0985df73 428 rocker_port_kfree(trans, wait);
4b8ac966
JP		 429}
430
431static bool rocker_wait_event_timeout(struct rocker_wait *wait,
432 unsigned long timeout)
433{
434 wait_event_timeout(wait->wait, wait->done, HZ / 10);
435 if (!wait->done)
436 return false;
437 return true;
438}
439
440static void rocker_wait_wake_up(struct rocker_wait *wait)
441{
442 wait->done = true;
443 wake_up(&wait->wait);
444}
445
e5054643 446static u32 rocker_msix_vector(const struct rocker *rocker, unsigned int vector)
4b8ac966
JP		 447{
448 return rocker->msix_entries[vector].vector;
449}
450
e5054643 451static u32 rocker_msix_tx_vector(const struct rocker_port *rocker_port)
4b8ac966
JP		 452{
453 return rocker_msix_vector(rocker_port->rocker,
454 ROCKER_MSIX_VEC_TX(rocker_port->port_number));
455}
456
e5054643 457static u32 rocker_msix_rx_vector(const struct rocker_port *rocker_port)
4b8ac966
JP		 458{
459 return rocker_msix_vector(rocker_port->rocker,
460 ROCKER_MSIX_VEC_RX(rocker_port->port_number));
461}
462
463#define rocker_write32(rocker, reg, val) \
464 writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))
465#define rocker_read32(rocker, reg) \
466 readl((rocker)->hw_addr + (ROCKER_ ## reg))
467#define rocker_write64(rocker, reg, val) \
468 writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))
469#define rocker_read64(rocker, reg) \
470 readq((rocker)->hw_addr + (ROCKER_ ## reg))
471
472/*****************************
473 * HW basic testing functions
474 *****************************/
475
e5054643 476static int rocker_reg_test(const struct rocker *rocker)
4b8ac966 477{
e5054643 478 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 479 u64 test_reg;
480 u64 rnd;
481
482 rnd = prandom_u32();
483 rnd >>= 1;
484 rocker_write32(rocker, TEST_REG, rnd);
485 test_reg = rocker_read32(rocker, TEST_REG);
486 if (test_reg != rnd * 2) {
487 dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n",
488 test_reg, rnd * 2);
489 return -EIO;
490 }
491
492 rnd = prandom_u32();
493 rnd <<= 31;
494 rnd |= prandom_u32();
495 rocker_write64(rocker, TEST_REG64, rnd);
496 test_reg = rocker_read64(rocker, TEST_REG64);
497 if (test_reg != rnd * 2) {
498 dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n",
499 test_reg, rnd * 2);
500 return -EIO;
501 }
502
503 return 0;
504}
505
e5054643
SH		 506static int rocker_dma_test_one(const struct rocker *rocker,
507 struct rocker_wait *wait, u32 test_type,
508 dma_addr_t dma_handle, const unsigned char *buf,
509 const unsigned char *expect, size_t size)
4b8ac966 510{
e5054643 511 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 512 int i;
513
514 rocker_wait_reset(wait);
515 rocker_write32(rocker, TEST_DMA_CTRL, test_type);
516
517 if (!rocker_wait_event_timeout(wait, HZ / 10)) {
518 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
519 return -EIO;
520 }
521
522 for (i = 0; i < size; i++) {
523 if (buf[i] != expect[i]) {
524 dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected",
525 buf[i], i, expect[i]);
526 return -EIO;
527 }
528 }
529 return 0;
530}
531
532#define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)
533#define ROCKER_TEST_DMA_FILL_PATTERN 0x96
534
e5054643 535static int rocker_dma_test_offset(const struct rocker *rocker,
4b8ac966
JP		 536 struct rocker_wait *wait, int offset)
537{
538 struct pci_dev *pdev = rocker->pdev;
539 unsigned char *alloc;
540 unsigned char *buf;
541 unsigned char *expect;
542 dma_addr_t dma_handle;
543 int i;
544 int err;
545
546 alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset,
547 GFP_KERNEL | GFP_DMA);
548 if (!alloc)
549 return -ENOMEM;
550 buf = alloc + offset;
551 expect = buf + ROCKER_TEST_DMA_BUF_SIZE;
552
553 dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE,
554 PCI_DMA_BIDIRECTIONAL);
555 if (pci_dma_mapping_error(pdev, dma_handle)) {
556 err = -EIO;
557 goto free_alloc;
558 }
559
560 rocker_write64(rocker, TEST_DMA_ADDR, dma_handle);
561 rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE);
562
563 memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE);
564 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL,
565 dma_handle, buf, expect,
566 ROCKER_TEST_DMA_BUF_SIZE);
567 if (err)
568 goto unmap;
569
570 memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE);
571 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR,
572 dma_handle, buf, expect,
573 ROCKER_TEST_DMA_BUF_SIZE);
574 if (err)
575 goto unmap;
576
577 prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
578 for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++)
579 expect[i] = ~buf[i];
580 err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT,
581 dma_handle, buf, expect,
582 ROCKER_TEST_DMA_BUF_SIZE);
583 if (err)
584 goto unmap;
585
586unmap:
587 pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE,
588 PCI_DMA_BIDIRECTIONAL);
589free_alloc:
590 kfree(alloc);
591
592 return err;
593}
594
e5054643
SH		 595static int rocker_dma_test(const struct rocker *rocker,
596 struct rocker_wait *wait)
4b8ac966
JP		 597{
598 int i;
599 int err;
600
601 for (i = 0; i < 8; i++) {
602 err = rocker_dma_test_offset(rocker, wait, i);
603 if (err)
604 return err;
605 }
606 return 0;
607}
608
609static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id)
610{
611 struct rocker_wait *wait = dev_id;
612
613 rocker_wait_wake_up(wait);
614
615 return IRQ_HANDLED;
616}
617
e5054643 618static int rocker_basic_hw_test(const struct rocker *rocker)
4b8ac966 619{
e5054643 620 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 621 struct rocker_wait wait;
622 int err;
623
624 err = rocker_reg_test(rocker);
625 if (err) {
626 dev_err(&pdev->dev, "reg test failed\n");
627 return err;
628 }
629
630 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST),
631 rocker_test_irq_handler, 0,
632 rocker_driver_name, &wait);
633 if (err) {
634 dev_err(&pdev->dev, "cannot assign test irq\n");
635 return err;
636 }
637
638 rocker_wait_init(&wait);
639 rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST);
640
641 if (!rocker_wait_event_timeout(&wait, HZ / 10)) {
642 dev_err(&pdev->dev, "no interrupt received within a timeout\n");
643 err = -EIO;
644 goto free_irq;
645 }
646
647 err = rocker_dma_test(rocker, &wait);
648 if (err)
649 dev_err(&pdev->dev, "dma test failed\n");
650
651free_irq:
652 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait);
653 return err;
654}
655
656/******
657 * TLV
658 ******/
659
660#define ROCKER_TLV_ALIGNTO 8U
661#define ROCKER_TLV_ALIGN(len) \
662 (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
663#define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
664
665/* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
666 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
667 * | Header | Pad | Payload | Pad |
668 * | (struct rocker_tlv) | ing | | ing |
669 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
670 * <--------------------------- tlv->len -------------------------->
671 */
672
673static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv,
674 int *remaining)
675{
676 int totlen = ROCKER_TLV_ALIGN(tlv->len);
677
678 *remaining -= totlen;
679 return (struct rocker_tlv *) ((char *) tlv + totlen);
680}
681
682static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining)
683{
684 return remaining >= (int) ROCKER_TLV_HDRLEN &&
685 tlv->len >= ROCKER_TLV_HDRLEN &&
686 tlv->len <= remaining;
687}
688
689#define rocker_tlv_for_each(pos, head, len, rem) \
690 for (pos = head, rem = len; \
691 rocker_tlv_ok(pos, rem); \
692 pos = rocker_tlv_next(pos, &(rem)))
693
694#define rocker_tlv_for_each_nested(pos, tlv, rem) \
695 rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
696 rocker_tlv_len(tlv), rem)
697
698static int rocker_tlv_attr_size(int payload)
699{
700 return ROCKER_TLV_HDRLEN + payload;
701}
702
703static int rocker_tlv_total_size(int payload)
704{
705 return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload));
706}
707
708static int rocker_tlv_padlen(int payload)
709{
710 return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload);
711}
712
713static int rocker_tlv_type(const struct rocker_tlv *tlv)
714{
715 return tlv->type;
716}
717
718static void *rocker_tlv_data(const struct rocker_tlv *tlv)
719{
720 return (char *) tlv + ROCKER_TLV_HDRLEN;
721}
722
723static int rocker_tlv_len(const struct rocker_tlv *tlv)
724{
725 return tlv->len - ROCKER_TLV_HDRLEN;
726}
727
728static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv)
729{
730 return *(u8 *) rocker_tlv_data(tlv);
731}
732
733static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv)
734{
735 return *(u16 *) rocker_tlv_data(tlv);
736}
737
9b03c71f
JP		 738static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv)
739{
740 return *(__be16 *) rocker_tlv_data(tlv);
741}
742
4b8ac966
JP		 743static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv)
744{
745 return *(u32 *) rocker_tlv_data(tlv);
746}
747
748static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv)
749{
750 return *(u64 *) rocker_tlv_data(tlv);
751}
752
e5054643 753static void rocker_tlv_parse(const struct rocker_tlv **tb, int maxtype,
4b8ac966
JP		 754 const char *buf, int buf_len)
755{
756 const struct rocker_tlv *tlv;
757 const struct rocker_tlv *head = (const struct rocker_tlv *) buf;
758 int rem;
759
760 memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1));
761
762 rocker_tlv_for_each(tlv, head, buf_len, rem) {
763 u32 type = rocker_tlv_type(tlv);
764
765 if (type > 0 && type <= maxtype)
e5054643 766 tb[type] = tlv;
4b8ac966
JP		 767 }
768}
769
e5054643 770static void rocker_tlv_parse_nested(const struct rocker_tlv **tb, int maxtype,
4b8ac966
JP		 771 const struct rocker_tlv *tlv)
772{
773 rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv),
774 rocker_tlv_len(tlv));
775}
776
e5054643
SH		 777static void rocker_tlv_parse_desc(const struct rocker_tlv **tb, int maxtype,
778 const struct rocker_desc_info *desc_info)
4b8ac966
JP		 779{
780 rocker_tlv_parse(tb, maxtype, desc_info->data,
781 desc_info->desc->tlv_size);
782}
783
784static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info)
785{
786 return (struct rocker_tlv *) ((char *) desc_info->data +
787 desc_info->tlv_size);
788}
789
790static int rocker_tlv_put(struct rocker_desc_info *desc_info,
791 int attrtype, int attrlen, const void *data)
792{
793 int tail_room = desc_info->data_size - desc_info->tlv_size;
794 int total_size = rocker_tlv_total_size(attrlen);
795 struct rocker_tlv *tlv;
796
797 if (unlikely(tail_room < total_size))
798 return -EMSGSIZE;
799
800 tlv = rocker_tlv_start(desc_info);
801 desc_info->tlv_size += total_size;
802 tlv->type = attrtype;
803 tlv->len = rocker_tlv_attr_size(attrlen);
804 memcpy(rocker_tlv_data(tlv), data, attrlen);
805 memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen));
806 return 0;
807}
808
809static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info,
810 int attrtype, u8 value)
811{
812 return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value);
813}
814
815static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info,
816 int attrtype, u16 value)
817{
818 return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value);
819}
820
9b03c71f
JP		 821static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info,
822 int attrtype, __be16 value)
823{
824 return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value);
825}
826
4b8ac966
JP		 827static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info,
828 int attrtype, u32 value)
829{
830 return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value);
831}
832
9b03c71f
JP		 833static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info,
834 int attrtype, __be32 value)
835{
836 return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value);
837}
838
4b8ac966
JP		 839static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info,
840 int attrtype, u64 value)
841{
842 return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value);
843}
844
845static struct rocker_tlv *
846rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype)
847{
848 struct rocker_tlv *start = rocker_tlv_start(desc_info);
849
850 if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0)
851 return NULL;
852
853 return start;
854}
855
856static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info,
857 struct rocker_tlv *start)
858{
859 start->len = (char *) rocker_tlv_start(desc_info) - (char *) start;
860}
861
862static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info,
e5054643 863 const struct rocker_tlv *start)
4b8ac966 864{
e5054643 865 desc_info->tlv_size = (const char *) start - desc_info->data;
4b8ac966
JP		 866}
867
868/******************************************
869 * DMA rings and descriptors manipulations
870 ******************************************/
871
872static u32 __pos_inc(u32 pos, size_t limit)
873{
874 return ++pos == limit ? 0 : pos;
875}
876
e5054643 877static int rocker_desc_err(const struct rocker_desc_info *desc_info)
4b8ac966 878{
7eb344f8
SF		 879 int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN;
880
881 switch (err) {
882 case ROCKER_OK:
883 return 0;
884 case -ROCKER_ENOENT:
885 return -ENOENT;
886 case -ROCKER_ENXIO:
887 return -ENXIO;
888 case -ROCKER_ENOMEM:
889 return -ENOMEM;
890 case -ROCKER_EEXIST:
891 return -EEXIST;
892 case -ROCKER_EINVAL:
893 return -EINVAL;
894 case -ROCKER_EMSGSIZE:
895 return -EMSGSIZE;
896 case -ROCKER_ENOTSUP:
897 return -EOPNOTSUPP;
898 case -ROCKER_ENOBUFS:
899 return -ENOBUFS;
900 }
901
902 return -EINVAL;
4b8ac966
JP		 903}
904
e5054643 905static void rocker_desc_gen_clear(const struct rocker_desc_info *desc_info)
4b8ac966
JP		 906{
907 desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN;
908}
909
e5054643 910static bool rocker_desc_gen(const struct rocker_desc_info *desc_info)
4b8ac966
JP		 911{
912 u32 comp_err = desc_info->desc->comp_err;
913
914 return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false;
915}
916
e5054643 917static void *rocker_desc_cookie_ptr_get(const struct rocker_desc_info *desc_info)
4b8ac966 918{
adedf37b 919 return (void *)(uintptr_t)desc_info->desc->cookie;
4b8ac966
JP		 920}
921
e5054643 922static void rocker_desc_cookie_ptr_set(const struct rocker_desc_info *desc_info,
4b8ac966
JP		 923 void *ptr)
924{
adedf37b 925 desc_info->desc->cookie = (uintptr_t) ptr;
4b8ac966
JP		 926}
927
928static struct rocker_desc_info *
e5054643 929rocker_desc_head_get(const struct rocker_dma_ring_info *info)
4b8ac966
JP		 930{
931 static struct rocker_desc_info *desc_info;
932 u32 head = __pos_inc(info->head, info->size);
933
934 desc_info = &info->desc_info[info->head];
935 if (head == info->tail)
936 return NULL; /* ring full */
937 desc_info->tlv_size = 0;
938 return desc_info;
939}
940
e5054643 941static void rocker_desc_commit(const struct rocker_desc_info *desc_info)
4b8ac966
JP		 942{
943 desc_info->desc->buf_size = desc_info->data_size;
944 desc_info->desc->tlv_size = desc_info->tlv_size;
945}
946
e5054643 947static void rocker_desc_head_set(const struct rocker *rocker,
4b8ac966 948 struct rocker_dma_ring_info *info,
e5054643 949 const struct rocker_desc_info *desc_info)
4b8ac966
JP		 950{
951 u32 head = __pos_inc(info->head, info->size);
952
953 BUG_ON(head == info->tail);
954 rocker_desc_commit(desc_info);
955 info->head = head;
956 rocker_write32(rocker, DMA_DESC_HEAD(info->type), head);
957}
958
959static struct rocker_desc_info *
960rocker_desc_tail_get(struct rocker_dma_ring_info *info)
961{
962 static struct rocker_desc_info *desc_info;
963
964 if (info->tail == info->head)
965 return NULL; /* nothing to be done between head and tail */
966 desc_info = &info->desc_info[info->tail];
967 if (!rocker_desc_gen(desc_info))
968 return NULL; /* gen bit not set, desc is not ready yet */
969 info->tail = __pos_inc(info->tail, info->size);
970 desc_info->tlv_size = desc_info->desc->tlv_size;
971 return desc_info;
972}
973
e5054643
SH		 974static void rocker_dma_ring_credits_set(const struct rocker *rocker,
975 const struct rocker_dma_ring_info *info,
4b8ac966
JP		 976 u32 credits)
977{
978 if (credits)
979 rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits);
980}
981
982static unsigned long rocker_dma_ring_size_fix(size_t size)
983{
984 return max(ROCKER_DMA_SIZE_MIN,
985 min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX));
986}
987
e5054643 988static int rocker_dma_ring_create(const struct rocker *rocker,
4b8ac966
JP		 989 unsigned int type,
990 size_t size,
991 struct rocker_dma_ring_info *info)
992{
993 int i;
994
995 BUG_ON(size != rocker_dma_ring_size_fix(size));
996 info->size = size;
997 info->type = type;
998 info->head = 0;
999 info->tail = 0;
1000 info->desc_info = kcalloc(info->size, sizeof(*info->desc_info),
1001 GFP_KERNEL);
1002 if (!info->desc_info)
1003 return -ENOMEM;
1004
1005 info->desc = pci_alloc_consistent(rocker->pdev,
1006 info->size * sizeof(*info->desc),
1007 &info->mapaddr);
1008 if (!info->desc) {
1009 kfree(info->desc_info);
1010 return -ENOMEM;
1011 }
1012
1013 for (i = 0; i < info->size; i++)
1014 info->desc_info[i].desc = &info->desc[i];
1015
1016 rocker_write32(rocker, DMA_DESC_CTRL(info->type),
1017 ROCKER_DMA_DESC_CTRL_RESET);
1018 rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr);
1019 rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size);
1020
1021 return 0;
1022}
1023
e5054643
SH		 1024static void rocker_dma_ring_destroy(const struct rocker *rocker,
1025 const struct rocker_dma_ring_info *info)
4b8ac966
JP		 1026{
1027 rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0);
1028
1029 pci_free_consistent(rocker->pdev,
1030 info->size * sizeof(struct rocker_desc),
1031 info->desc, info->mapaddr);
1032 kfree(info->desc_info);
1033}
1034
e5054643 1035static void rocker_dma_ring_pass_to_producer(const struct rocker *rocker,
4b8ac966
JP		 1036 struct rocker_dma_ring_info *info)
1037{
1038 int i;
1039
1040 BUG_ON(info->head || info->tail);
1041
1042 /* When ring is consumer, we need to advance head for each desc.
1043 * That tells hw that the desc is ready to be used by it.
1044 */
1045 for (i = 0; i < info->size - 1; i++)
1046 rocker_desc_head_set(rocker, info, &info->desc_info[i]);
1047 rocker_desc_commit(&info->desc_info[i]);
1048}
1049
e5054643
SH		 1050static int rocker_dma_ring_bufs_alloc(const struct rocker *rocker,
1051 const struct rocker_dma_ring_info *info,
4b8ac966
JP		 1052 int direction, size_t buf_size)
1053{
1054 struct pci_dev *pdev = rocker->pdev;
1055 int i;
1056 int err;
1057
1058 for (i = 0; i < info->size; i++) {
1059 struct rocker_desc_info *desc_info = &info->desc_info[i];
1060 struct rocker_desc *desc = &info->desc[i];
1061 dma_addr_t dma_handle;
1062 char *buf;
1063
1064 buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA);
1065 if (!buf) {
1066 err = -ENOMEM;
1067 goto rollback;
1068 }
1069
1070 dma_handle = pci_map_single(pdev, buf, buf_size, direction);
1071 if (pci_dma_mapping_error(pdev, dma_handle)) {
1072 kfree(buf);
1073 err = -EIO;
1074 goto rollback;
1075 }
1076
1077 desc_info->data = buf;
1078 desc_info->data_size = buf_size;
1079 dma_unmap_addr_set(desc_info, mapaddr, dma_handle);
1080
1081 desc->buf_addr = dma_handle;
1082 desc->buf_size = buf_size;
1083 }
1084 return 0;
1085
1086rollback:
1087 for (i--; i >= 0; i--) {
e5054643 1088 const struct rocker_desc_info *desc_info = &info->desc_info[i];
4b8ac966
JP		 1089
1090 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1091 desc_info->data_size, direction);
1092 kfree(desc_info->data);
1093 }
1094 return err;
1095}
1096
e5054643
SH		 1097static void rocker_dma_ring_bufs_free(const struct rocker *rocker,
1098 const struct rocker_dma_ring_info *info,
4b8ac966
JP		 1099 int direction)
1100{
1101 struct pci_dev *pdev = rocker->pdev;
1102 int i;
1103
1104 for (i = 0; i < info->size; i++) {
e5054643 1105 const struct rocker_desc_info *desc_info = &info->desc_info[i];
4b8ac966
JP		 1106 struct rocker_desc *desc = &info->desc[i];
1107
1108 desc->buf_addr = 0;
1109 desc->buf_size = 0;
1110 pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
1111 desc_info->data_size, direction);
1112 kfree(desc_info->data);
1113 }
1114}
1115
1116static int rocker_dma_rings_init(struct rocker *rocker)
1117{
e5054643 1118 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 1119 int err;
1120
1121 err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD,
1122 ROCKER_DMA_CMD_DEFAULT_SIZE,
1123 &rocker->cmd_ring);
1124 if (err) {
1125 dev_err(&pdev->dev, "failed to create command dma ring\n");
1126 return err;
1127 }
1128
1129 spin_lock_init(&rocker->cmd_ring_lock);
1130
1131 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring,
1132 PCI_DMA_BIDIRECTIONAL, PAGE_SIZE);
1133 if (err) {
1134 dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n");
1135 goto err_dma_cmd_ring_bufs_alloc;
1136 }
1137
1138 err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT,
1139 ROCKER_DMA_EVENT_DEFAULT_SIZE,
1140 &rocker->event_ring);
1141 if (err) {
1142 dev_err(&pdev->dev, "failed to create event dma ring\n");
1143 goto err_dma_event_ring_create;
1144 }
1145
1146 err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring,
1147 PCI_DMA_FROMDEVICE, PAGE_SIZE);
1148 if (err) {
1149 dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n");
1150 goto err_dma_event_ring_bufs_alloc;
1151 }
1152 rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring);
1153 return 0;
1154
1155err_dma_event_ring_bufs_alloc:
1156 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1157err_dma_event_ring_create:
1158 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1159 PCI_DMA_BIDIRECTIONAL);
1160err_dma_cmd_ring_bufs_alloc:
1161 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1162 return err;
1163}
1164
1165static void rocker_dma_rings_fini(struct rocker *rocker)
1166{
1167 rocker_dma_ring_bufs_free(rocker, &rocker->event_ring,
1168 PCI_DMA_BIDIRECTIONAL);
1169 rocker_dma_ring_destroy(rocker, &rocker->event_ring);
1170 rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
1171 PCI_DMA_BIDIRECTIONAL);
1172 rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
1173}
1174
e5054643
SH		 1175static int rocker_dma_rx_ring_skb_map(const struct rocker *rocker,
1176 const struct rocker_port *rocker_port,
4b8ac966
JP		 1177 struct rocker_desc_info *desc_info,
1178 struct sk_buff *skb, size_t buf_len)
1179{
1180 struct pci_dev *pdev = rocker->pdev;
1181 dma_addr_t dma_handle;
1182
1183 dma_handle = pci_map_single(pdev, skb->data, buf_len,
1184 PCI_DMA_FROMDEVICE);
1185 if (pci_dma_mapping_error(pdev, dma_handle))
1186 return -EIO;
1187 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle))
1188 goto tlv_put_failure;
1189 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len))
1190 goto tlv_put_failure;
1191 return 0;
1192
1193tlv_put_failure:
1194 pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE);
1195 desc_info->tlv_size = 0;
1196 return -EMSGSIZE;
1197}
1198
e5054643 1199static size_t rocker_port_rx_buf_len(const struct rocker_port *rocker_port)
4b8ac966
JP		 1200{
1201 return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
1202}
1203
e5054643
SH		 1204static int rocker_dma_rx_ring_skb_alloc(const struct rocker *rocker,
1205 const struct rocker_port *rocker_port,
4b8ac966
JP		 1206 struct rocker_desc_info *desc_info)
1207{
1208 struct net_device *dev = rocker_port->dev;
1209 struct sk_buff *skb;
1210 size_t buf_len = rocker_port_rx_buf_len(rocker_port);
1211 int err;
1212
1213 /* Ensure that hw will see tlv_size zero in case of an error.
1214 * That tells hw to use another descriptor.
1215 */
1216 rocker_desc_cookie_ptr_set(desc_info, NULL);
1217 desc_info->tlv_size = 0;
1218
1219 skb = netdev_alloc_skb_ip_align(dev, buf_len);
1220 if (!skb)
1221 return -ENOMEM;
1222 err = rocker_dma_rx_ring_skb_map(rocker, rocker_port, desc_info,
1223 skb, buf_len);
1224 if (err) {
1225 dev_kfree_skb_any(skb);
1226 return err;
1227 }
1228 rocker_desc_cookie_ptr_set(desc_info, skb);
1229 return 0;
1230}
1231
e5054643
SH		 1232static void rocker_dma_rx_ring_skb_unmap(const struct rocker *rocker,
1233 const struct rocker_tlv **attrs)
4b8ac966
JP		 1234{
1235 struct pci_dev *pdev = rocker->pdev;
1236 dma_addr_t dma_handle;
1237 size_t len;
1238
1239 if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] ||
1240 !attrs[ROCKER_TLV_RX_FRAG_MAX_LEN])
1241 return;
1242 dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]);
1243 len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]);
1244 pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE);
1245}
1246
e5054643
SH		 1247static void rocker_dma_rx_ring_skb_free(const struct rocker *rocker,
1248 const struct rocker_desc_info *desc_info)
4b8ac966 1249{
e5054643 1250 const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
4b8ac966
JP		 1251 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
1252
1253 if (!skb)
1254 return;
1255 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
1256 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
1257 dev_kfree_skb_any(skb);
1258}
1259
e5054643
SH		 1260static int rocker_dma_rx_ring_skbs_alloc(const struct rocker *rocker,
1261 const struct rocker_port *rocker_port)
4b8ac966 1262{
e5054643 1263 const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
4b8ac966
JP		 1264 int i;
1265 int err;
1266
1267 for (i = 0; i < rx_ring->size; i++) {
1268 err = rocker_dma_rx_ring_skb_alloc(rocker, rocker_port,
1269 &rx_ring->desc_info[i]);
1270 if (err)
1271 goto rollback;
1272 }
1273 return 0;
1274
1275rollback:
1276 for (i--; i >= 0; i--)
1277 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1278 return err;
1279}
1280
e5054643
SH		 1281static void rocker_dma_rx_ring_skbs_free(const struct rocker *rocker,
1282 const struct rocker_port *rocker_port)
4b8ac966 1283{
e5054643 1284 const struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
4b8ac966
JP		 1285 int i;
1286
1287 for (i = 0; i < rx_ring->size; i++)
1288 rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
1289}
1290
1291static int rocker_port_dma_rings_init(struct rocker_port *rocker_port)
1292{
1293 struct rocker *rocker = rocker_port->rocker;
1294 int err;
1295
1296 err = rocker_dma_ring_create(rocker,
1297 ROCKER_DMA_TX(rocker_port->port_number),
1298 ROCKER_DMA_TX_DEFAULT_SIZE,
1299 &rocker_port->tx_ring);
1300 if (err) {
1301 netdev_err(rocker_port->dev, "failed to create tx dma ring\n");
1302 return err;
1303 }
1304
1305 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring,
1306 PCI_DMA_TODEVICE,
1307 ROCKER_DMA_TX_DESC_SIZE);
1308 if (err) {
1309 netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n");
1310 goto err_dma_tx_ring_bufs_alloc;
1311 }
1312
1313 err = rocker_dma_ring_create(rocker,
1314 ROCKER_DMA_RX(rocker_port->port_number),
1315 ROCKER_DMA_RX_DEFAULT_SIZE,
1316 &rocker_port->rx_ring);
1317 if (err) {
1318 netdev_err(rocker_port->dev, "failed to create rx dma ring\n");
1319 goto err_dma_rx_ring_create;
1320 }
1321
1322 err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring,
1323 PCI_DMA_BIDIRECTIONAL,
1324 ROCKER_DMA_RX_DESC_SIZE);
1325 if (err) {
1326 netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n");
1327 goto err_dma_rx_ring_bufs_alloc;
1328 }
1329
1330 err = rocker_dma_rx_ring_skbs_alloc(rocker, rocker_port);
1331 if (err) {
1332 netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n");
1333 goto err_dma_rx_ring_skbs_alloc;
1334 }
1335 rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring);
1336
1337 return 0;
1338
1339err_dma_rx_ring_skbs_alloc:
1340 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1341 PCI_DMA_BIDIRECTIONAL);
1342err_dma_rx_ring_bufs_alloc:
1343 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1344err_dma_rx_ring_create:
1345 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1346 PCI_DMA_TODEVICE);
1347err_dma_tx_ring_bufs_alloc:
1348 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1349 return err;
1350}
1351
1352static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port)
1353{
1354 struct rocker *rocker = rocker_port->rocker;
1355
1356 rocker_dma_rx_ring_skbs_free(rocker, rocker_port);
1357 rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
1358 PCI_DMA_BIDIRECTIONAL);
1359 rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
1360 rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
1361 PCI_DMA_TODEVICE);
1362 rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
1363}
1364
e5054643
SH		 1365static void rocker_port_set_enable(const struct rocker_port *rocker_port,
1366 bool enable)
4b8ac966
JP		 1367{
1368 u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);
1369
1370 if (enable)
71a83a6d 1371 val |= 1ULL << rocker_port->pport;
4b8ac966 1372 else
71a83a6d 1373 val &= ~(1ULL << rocker_port->pport);
4b8ac966
JP		 1374 rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
1375}
1376
1377/********************************
1378 * Interrupt handler and helpers
1379 ********************************/
1380
1381static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id)
1382{
1383 struct rocker *rocker = dev_id;
e5054643 1384 const struct rocker_desc_info *desc_info;
4b8ac966
JP		 1385 struct rocker_wait *wait;
1386 u32 credits = 0;
1387
1388 spin_lock(&rocker->cmd_ring_lock);
1389 while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) {
1390 wait = rocker_desc_cookie_ptr_get(desc_info);
c4f20321 1391 rocker_wait_wake_up(wait);
4b8ac966
JP		 1392 credits++;
1393 }
1394 spin_unlock(&rocker->cmd_ring_lock);
1395 rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits);
1396
1397 return IRQ_HANDLED;
1398}
1399
e5054643 1400static void rocker_port_link_up(const struct rocker_port *rocker_port)
4b8ac966
JP		 1401{
1402 netif_carrier_on(rocker_port->dev);
1403 netdev_info(rocker_port->dev, "Link is up\n");
1404}
1405
e5054643 1406static void rocker_port_link_down(const struct rocker_port *rocker_port)
4b8ac966
JP		 1407{
1408 netif_carrier_off(rocker_port->dev);
1409 netdev_info(rocker_port->dev, "Link is down\n");
1410}
1411
e5054643 1412static int rocker_event_link_change(const struct rocker *rocker,
4b8ac966
JP		 1413 const struct rocker_tlv *info)
1414{
e5054643 1415 const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1];
4b8ac966
JP		 1416 unsigned int port_number;
1417 bool link_up;
1418 struct rocker_port *rocker_port;
1419
1420 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info);
4a6bb6d3 1421 if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] ||
4b8ac966
JP		 1422 !attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP])
1423 return -EIO;
1424 port_number =
4a6bb6d3 1425 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1;
4b8ac966
JP		 1426 link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]);
1427
1428 if (port_number >= rocker->port_count)
1429 return -EINVAL;
1430
1431 rocker_port = rocker->ports[port_number];
1432 if (netif_carrier_ok(rocker_port->dev) != link_up) {
1433 if (link_up)
1434 rocker_port_link_up(rocker_port);
1435 else
1436 rocker_port_link_down(rocker_port);
1437 }
1438
1439 return 0;
1440}
1441
9f6bbf7c 1442#define ROCKER_OP_FLAG_REMOVE BIT(0)
c4f20321
SF		 1443#define ROCKER_OP_FLAG_LEARNED BIT(1)
1444#define ROCKER_OP_FLAG_REFRESH BIT(2)
6c707945
SF		 1445
1446static int rocker_port_fdb(struct rocker_port *rocker_port,
c4f20321 1447 enum switchdev_trans trans,
6c707945
SF		 1448 const unsigned char *addr,
1449 __be16 vlan_id, int flags);
1450
c4f20321
SF		 1451struct rocker_mac_vlan_seen_work {
1452 struct work_struct work;
1453 struct rocker_port *rocker_port;
1454 int flags;
1455 unsigned char addr[ETH_ALEN];
1456 __be16 vlan_id;
1457};
1458
1459static void rocker_event_mac_vlan_seen_work(struct work_struct *work)
1460{
e5054643 1461 const struct rocker_mac_vlan_seen_work *sw =
c4f20321
SF		 1462 container_of(work, struct rocker_mac_vlan_seen_work, work);
1463
1464 rtnl_lock();
1465 rocker_port_fdb(sw->rocker_port, SWITCHDEV_TRANS_NONE,
1466 sw->addr, sw->vlan_id, sw->flags);
1467 rtnl_unlock();
1468
1469 kfree(work);
1470}
1471
e5054643 1472static int rocker_event_mac_vlan_seen(const struct rocker *rocker,
6c707945
SF		 1473 const struct rocker_tlv *info)
1474{
c4f20321 1475 struct rocker_mac_vlan_seen_work *sw;
e5054643 1476 const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1];
6c707945
SF		 1477 unsigned int port_number;
1478 struct rocker_port *rocker_port;
e5054643 1479 const unsigned char *addr;
c4f20321 1480 int flags = ROCKER_OP_FLAG_LEARNED;
6c707945
SF		 1481 __be16 vlan_id;
1482
1483 rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info);
4a6bb6d3 1484 if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] ||
6c707945
SF		 1485 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] ||
1486 !attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID])
1487 return -EIO;
1488 port_number =
4a6bb6d3 1489 rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1;
6c707945 1490 addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]);
9b03c71f 1491 vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]);
6c707945
SF		 1492
1493 if (port_number >= rocker->port_count)
1494 return -EINVAL;
1495
1496 rocker_port = rocker->ports[port_number];
1497
1498 if (rocker_port->stp_state != BR_STATE_LEARNING &&
1499 rocker_port->stp_state != BR_STATE_FORWARDING)
1500 return 0;
1501
c4f20321
SF		 1502 sw = kmalloc(sizeof(*sw), GFP_ATOMIC);
1503 if (!sw)
1504 return -ENOMEM;
1505
1506 INIT_WORK(&sw->work, rocker_event_mac_vlan_seen_work);
1507
1508 sw->rocker_port = rocker_port;
1509 sw->flags = flags;
1510 ether_addr_copy(sw->addr, addr);
1511 sw->vlan_id = vlan_id;
1512
1513 schedule_work(&sw->work);
1514
1515 return 0;
6c707945 1516}
9f6bbf7c 1517
e5054643
SH		 1518static int rocker_event_process(const struct rocker *rocker,
1519 const struct rocker_desc_info *desc_info)
4b8ac966 1520{
e5054643
SH		 1521 const struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1];
1522 const struct rocker_tlv *info;
4b8ac966
JP		 1523 u16 type;
1524
1525 rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info);
1526 if (!attrs[ROCKER_TLV_EVENT_TYPE] ||
1527 !attrs[ROCKER_TLV_EVENT_INFO])
1528 return -EIO;
1529
1530 type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]);
1531 info = attrs[ROCKER_TLV_EVENT_INFO];
1532
1533 switch (type) {
1534 case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED:
1535 return rocker_event_link_change(rocker, info);
6c707945
SF		 1536 case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN:
1537 return rocker_event_mac_vlan_seen(rocker, info);
4b8ac966
JP		 1538 }
1539
1540 return -EOPNOTSUPP;
1541}
1542
1543static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id)
1544{
1545 struct rocker *rocker = dev_id;
e5054643
SH		 1546 const struct pci_dev *pdev = rocker->pdev;
1547 const struct rocker_desc_info *desc_info;
4b8ac966
JP		 1548 u32 credits = 0;
1549 int err;
1550
1551 while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) {
1552 err = rocker_desc_err(desc_info);
1553 if (err) {
1554 dev_err(&pdev->dev, "event desc received with err %d\n",
1555 err);
1556 } else {
1557 err = rocker_event_process(rocker, desc_info);
1558 if (err)
1559 dev_err(&pdev->dev, "event processing failed with err %d\n",
1560 err);
1561 }
1562 rocker_desc_gen_clear(desc_info);
1563 rocker_desc_head_set(rocker, &rocker->event_ring, desc_info);
1564 credits++;
1565 }
1566 rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits);
1567
1568 return IRQ_HANDLED;
1569}
1570
1571static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id)
1572{
1573 struct rocker_port *rocker_port = dev_id;
1574
1575 napi_schedule(&rocker_port->napi_tx);
1576 return IRQ_HANDLED;
1577}
1578
1579static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id)
1580{
1581 struct rocker_port *rocker_port = dev_id;
1582
1583 napi_schedule(&rocker_port->napi_rx);
1584 return IRQ_HANDLED;
1585}
1586
1587/********************
1588 * Command interface
1589 ********************/
1590
e5054643
SH		 1591typedef int (*rocker_cmd_prep_cb_t)(const struct rocker *rocker,
1592 const struct rocker_port *rocker_port,
1593 struct rocker_desc_info *desc_info,
1594 void *priv);
1595
1596typedef int (*rocker_cmd_proc_cb_t)(const struct rocker *rocker,
1597 const struct rocker_port *rocker_port,
1598 const struct rocker_desc_info *desc_info,
1599 void *priv);
4b8ac966
JP		 1600
1601static int rocker_cmd_exec(struct rocker *rocker,
1602 struct rocker_port *rocker_port,
c4f20321 1603 enum switchdev_trans trans,
e5054643
SH		 1604 rocker_cmd_prep_cb_t prepare, void *prepare_priv,
1605 rocker_cmd_proc_cb_t process, void *process_priv)
4b8ac966
JP		 1606{
1607 struct rocker_desc_info *desc_info;
1608 struct rocker_wait *wait;
1609 unsigned long flags;
1610 int err;
1611
c4f20321 1612 wait = rocker_wait_create(rocker_port, trans);
4b8ac966
JP		 1613 if (!wait)
1614 return -ENOMEM;
4b8ac966
JP		 1615
1616 spin_lock_irqsave(&rocker->cmd_ring_lock, flags);
c4f20321 1617
4b8ac966
JP		 1618 desc_info = rocker_desc_head_get(&rocker->cmd_ring);
1619 if (!desc_info) {
1620 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1621 err = -EAGAIN;
1622 goto out;
1623 }
c4f20321 1624
4b8ac966
JP		 1625 err = prepare(rocker, rocker_port, desc_info, prepare_priv);
1626 if (err) {
1627 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1628 goto out;
1629 }
c4f20321 1630
4b8ac966 1631 rocker_desc_cookie_ptr_set(desc_info, wait);
4b8ac966 1632
c4f20321
SF		 1633 if (trans != SWITCHDEV_TRANS_PREPARE)
1634 rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);
4b8ac966 1635
c4f20321
SF		 1636 spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
1637
1638 if (trans != SWITCHDEV_TRANS_PREPARE)
1639 if (!rocker_wait_event_timeout(wait, HZ / 10))
1640 return -EIO;
4b8ac966
JP		 1641
1642 err = rocker_desc_err(desc_info);
1643 if (err)
1644 return err;
1645
1646 if (process)
1647 err = process(rocker, rocker_port, desc_info, process_priv);
1648
1649 rocker_desc_gen_clear(desc_info);
1650out:
0985df73 1651 rocker_wait_destroy(trans, wait);
4b8ac966
JP		 1652 return err;
1653}
1654
1655static int
e5054643
SH		 1656rocker_cmd_get_port_settings_prep(const struct rocker *rocker,
1657 const struct rocker_port *rocker_port,
4b8ac966
JP		 1658 struct rocker_desc_info *desc_info,
1659 void *priv)
1660{
1661 struct rocker_tlv *cmd_info;
1662
1663 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1664 ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS))
1665 return -EMSGSIZE;
1666 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1667 if (!cmd_info)
1668 return -EMSGSIZE;
4a6bb6d3
SF		 1669 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1670 rocker_port->pport))
4b8ac966
JP		 1671 return -EMSGSIZE;
1672 rocker_tlv_nest_end(desc_info, cmd_info);
1673 return 0;
1674}
1675
1676static int
e5054643
SH		 1677rocker_cmd_get_port_settings_ethtool_proc(const struct rocker *rocker,
1678 const struct rocker_port *rocker_port,
1679 const struct rocker_desc_info *desc_info,
4b8ac966
JP		 1680 void *priv)
1681{
1682 struct ethtool_cmd *ecmd = priv;
e5054643
SH		 1683 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1684 const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
4b8ac966
JP		 1685 u32 speed;
1686 u8 duplex;
1687 u8 autoneg;
1688
1689 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1690 if (!attrs[ROCKER_TLV_CMD_INFO])
1691 return -EIO;
1692
1693 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1694 attrs[ROCKER_TLV_CMD_INFO]);
1695 if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] ||
1696 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] ||
1697 !info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG])
1698 return -EIO;
1699
1700 speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]);
1701 duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]);
1702 autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]);
1703
1704 ecmd->transceiver = XCVR_INTERNAL;
1705 ecmd->supported = SUPPORTED_TP;
1706 ecmd->phy_address = 0xff;
1707 ecmd->port = PORT_TP;
1708 ethtool_cmd_speed_set(ecmd, speed);
1709 ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF;
1710 ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
1711
1712 return 0;
1713}
1714
1715static int
e5054643
SH		 1716rocker_cmd_get_port_settings_macaddr_proc(const struct rocker *rocker,
1717 const struct rocker_port *rocker_port,
1718 const struct rocker_desc_info *desc_info,
4b8ac966
JP		 1719 void *priv)
1720{
1721 unsigned char *macaddr = priv;
e5054643
SH		 1722 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
1723 const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1724 const struct rocker_tlv *attr;
4b8ac966
JP		 1725
1726 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1727 if (!attrs[ROCKER_TLV_CMD_INFO])
1728 return -EIO;
1729
1730 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1731 attrs[ROCKER_TLV_CMD_INFO]);
1732 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR];
1733 if (!attr)
1734 return -EIO;
1735
1736 if (rocker_tlv_len(attr) != ETH_ALEN)
1737 return -EINVAL;
1738
1739 ether_addr_copy(macaddr, rocker_tlv_data(attr));
1740 return 0;
1741}
1742
db19170b
DA		 1743struct port_name {
1744 char *buf;
1745 size_t len;
1746};
1747
1748static int
e5054643
SH		 1749rocker_cmd_get_port_settings_phys_name_proc(const struct rocker *rocker,
1750 const struct rocker_port *rocker_port,
1751 const struct rocker_desc_info *desc_info,
db19170b
DA		 1752 void *priv)
1753{
e5054643
SH		 1754 const struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
1755 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
db19170b 1756 struct port_name *name = priv;
e5054643 1757 const struct rocker_tlv *attr;
db19170b 1758 size_t i, j, len;
e5054643 1759 const char *str;
db19170b
DA		 1760
1761 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
1762 if (!attrs[ROCKER_TLV_CMD_INFO])
1763 return -EIO;
1764
1765 rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
1766 attrs[ROCKER_TLV_CMD_INFO]);
1767 attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME];
1768 if (!attr)
1769 return -EIO;
1770
1771 len = min_t(size_t, rocker_tlv_len(attr), name->len);
1772 str = rocker_tlv_data(attr);
1773
1774 /* make sure name only contains alphanumeric characters */
1775 for (i = j = 0; i < len; ++i) {
1776 if (isalnum(str[i])) {
1777 name->buf[j] = str[i];
1778 j++;
1779 }
1780 }
1781
1782 if (j == 0)
1783 return -EIO;
1784
1785 name->buf[j] = '\0';
1786
1787 return 0;
1788}
1789
4b8ac966 1790static int
e5054643
SH		 1791rocker_cmd_set_port_settings_ethtool_prep(const struct rocker *rocker,
1792 const struct rocker_port *rocker_port,
4b8ac966
JP		 1793 struct rocker_desc_info *desc_info,
1794 void *priv)
1795{
1796 struct ethtool_cmd *ecmd = priv;
1797 struct rocker_tlv *cmd_info;
1798
1799 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1800 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1801 return -EMSGSIZE;
1802 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1803 if (!cmd_info)
1804 return -EMSGSIZE;
4a6bb6d3
SF		 1805 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1806 rocker_port->pport))
4b8ac966
JP		 1807 return -EMSGSIZE;
1808 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED,
1809 ethtool_cmd_speed(ecmd)))
1810 return -EMSGSIZE;
1811 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,
1812 ecmd->duplex))
1813 return -EMSGSIZE;
1814 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG,
1815 ecmd->autoneg))
1816 return -EMSGSIZE;
1817 rocker_tlv_nest_end(desc_info, cmd_info);
1818 return 0;
1819}
1820
1821static int
e5054643
SH		 1822rocker_cmd_set_port_settings_macaddr_prep(const struct rocker *rocker,
1823 const struct rocker_port *rocker_port,
4b8ac966
JP		 1824 struct rocker_desc_info *desc_info,
1825 void *priv)
1826{
e5054643 1827 const unsigned char *macaddr = priv;
4b8ac966
JP		 1828 struct rocker_tlv *cmd_info;
1829
1830 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1831 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1832 return -EMSGSIZE;
1833 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1834 if (!cmd_info)
1835 return -EMSGSIZE;
4a6bb6d3
SF		 1836 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1837 rocker_port->pport))
4b8ac966
JP		 1838 return -EMSGSIZE;
1839 if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR,
1840 ETH_ALEN, macaddr))
1841 return -EMSGSIZE;
1842 rocker_tlv_nest_end(desc_info, cmd_info);
1843 return 0;
1844}
1845
5111f80c 1846static int
e5054643
SH		 1847rocker_cmd_set_port_learning_prep(const struct rocker *rocker,
1848 const struct rocker_port *rocker_port,
5111f80c
SF		 1849 struct rocker_desc_info *desc_info,
1850 void *priv)
1851{
1852 struct rocker_tlv *cmd_info;
1853
1854 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
1855 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
1856 return -EMSGSIZE;
1857 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
1858 if (!cmd_info)
1859 return -EMSGSIZE;
4a6bb6d3
SF		 1860 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
1861 rocker_port->pport))
5111f80c
SF		 1862 return -EMSGSIZE;
1863 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING,
1864 !!(rocker_port->brport_flags & BR_LEARNING)))
1865 return -EMSGSIZE;
1866 rocker_tlv_nest_end(desc_info, cmd_info);
1867 return 0;
1868}
1869
4b8ac966
JP		 1870static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
1871 struct ethtool_cmd *ecmd)
1872{
1873 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 1874 SWITCHDEV_TRANS_NONE,
4b8ac966
JP		 1875 rocker_cmd_get_port_settings_prep, NULL,
1876 rocker_cmd_get_port_settings_ethtool_proc,
c4f20321 1877 ecmd);
4b8ac966
JP		 1878}
1879
1880static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
1881 unsigned char *macaddr)
1882{
1883 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 1884 SWITCHDEV_TRANS_NONE,
4b8ac966
JP		 1885 rocker_cmd_get_port_settings_prep, NULL,
1886 rocker_cmd_get_port_settings_macaddr_proc,
c4f20321 1887 macaddr);
4b8ac966
JP		 1888}
1889
1890static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
1891 struct ethtool_cmd *ecmd)
1892{
1893 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 1894 SWITCHDEV_TRANS_NONE,
4b8ac966 1895 rocker_cmd_set_port_settings_ethtool_prep,
c4f20321 1896 ecmd, NULL, NULL);
4b8ac966
JP		 1897}
1898
1899static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
1900 unsigned char *macaddr)
1901{
1902 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 1903 SWITCHDEV_TRANS_NONE,
4b8ac966 1904 rocker_cmd_set_port_settings_macaddr_prep,
c4f20321 1905 macaddr, NULL, NULL);
4b8ac966
JP		 1906}
1907
c4f20321
SF		 1908static int rocker_port_set_learning(struct rocker_port *rocker_port,
1909 enum switchdev_trans trans)
5111f80c 1910{
c4f20321 1911 return rocker_cmd_exec(rocker_port->rocker, rocker_port, trans,
5111f80c 1912 rocker_cmd_set_port_learning_prep,
c4f20321 1913 NULL, NULL, NULL);
5111f80c
SF		 1914}
1915
e5054643
SH		 1916static int
1917rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info,
1918 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 1919{
4a6bb6d3
SF		 1920 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1921 entry->key.ig_port.in_pport))
9f6bbf7c 1922 return -EMSGSIZE;
4a6bb6d3
SF		 1923 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1924 entry->key.ig_port.in_pport_mask))
9f6bbf7c
SF		 1925 return -EMSGSIZE;
1926 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1927 entry->key.ig_port.goto_tbl))
1928 return -EMSGSIZE;
1929
1930 return 0;
1931}
1932
e5054643
SH		 1933static int
1934rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info,
1935 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 1936{
4a6bb6d3
SF		 1937 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1938 entry->key.vlan.in_pport))
9f6bbf7c 1939 return -EMSGSIZE;
9b03c71f
JP		 1940 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1941 entry->key.vlan.vlan_id))
9f6bbf7c 1942 return -EMSGSIZE;
9b03c71f
JP		 1943 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1944 entry->key.vlan.vlan_id_mask))
9f6bbf7c
SF		 1945 return -EMSGSIZE;
1946 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1947 entry->key.vlan.goto_tbl))
1948 return -EMSGSIZE;
1949 if (entry->key.vlan.untagged &&
9b03c71f
JP		 1950 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID,
1951 entry->key.vlan.new_vlan_id))
9f6bbf7c
SF		 1952 return -EMSGSIZE;
1953
1954 return 0;
1955}
1956
e5054643
SH		 1957static int
1958rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info,
1959 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 1960{
4a6bb6d3
SF		 1961 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
1962 entry->key.term_mac.in_pport))
9f6bbf7c 1963 return -EMSGSIZE;
4a6bb6d3
SF		 1964 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
1965 entry->key.term_mac.in_pport_mask))
9f6bbf7c 1966 return -EMSGSIZE;
9b03c71f
JP		 1967 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1968 entry->key.term_mac.eth_type))
9f6bbf7c
SF		 1969 return -EMSGSIZE;
1970 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
1971 ETH_ALEN, entry->key.term_mac.eth_dst))
1972 return -EMSGSIZE;
1973 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
1974 ETH_ALEN, entry->key.term_mac.eth_dst_mask))
1975 return -EMSGSIZE;
9b03c71f
JP		 1976 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
1977 entry->key.term_mac.vlan_id))
9f6bbf7c 1978 return -EMSGSIZE;
9b03c71f
JP		 1979 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
1980 entry->key.term_mac.vlan_id_mask))
9f6bbf7c
SF		 1981 return -EMSGSIZE;
1982 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
1983 entry->key.term_mac.goto_tbl))
1984 return -EMSGSIZE;
1985 if (entry->key.term_mac.copy_to_cpu &&
1986 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
1987 entry->key.term_mac.copy_to_cpu))
1988 return -EMSGSIZE;
1989
1990 return 0;
1991}
1992
1993static int
1994rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info,
e5054643 1995 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 1996{
9b03c71f
JP		 1997 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
1998 entry->key.ucast_routing.eth_type))
9f6bbf7c 1999 return -EMSGSIZE;
9b03c71f
JP		 2000 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP,
2001 entry->key.ucast_routing.dst4))
9f6bbf7c 2002 return -EMSGSIZE;
9b03c71f
JP		 2003 if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK,
2004 entry->key.ucast_routing.dst4_mask))
9f6bbf7c
SF		 2005 return -EMSGSIZE;
2006 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
2007 entry->key.ucast_routing.goto_tbl))
2008 return -EMSGSIZE;
2009 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2010 entry->key.ucast_routing.group_id))
2011 return -EMSGSIZE;
2012
2013 return 0;
2014}
2015
e5054643
SH		 2016static int
2017rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info,
2018 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c
SF		 2019{
2020 if (entry->key.bridge.has_eth_dst &&
2021 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2022 ETH_ALEN, entry->key.bridge.eth_dst))
2023 return -EMSGSIZE;
2024 if (entry->key.bridge.has_eth_dst_mask &&
2025 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
2026 ETH_ALEN, entry->key.bridge.eth_dst_mask))
2027 return -EMSGSIZE;
2028 if (entry->key.bridge.vlan_id &&
9b03c71f
JP		 2029 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2030 entry->key.bridge.vlan_id))
9f6bbf7c
SF		 2031 return -EMSGSIZE;
2032 if (entry->key.bridge.tunnel_id &&
2033 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID,
2034 entry->key.bridge.tunnel_id))
2035 return -EMSGSIZE;
2036 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
2037 entry->key.bridge.goto_tbl))
2038 return -EMSGSIZE;
2039 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2040 entry->key.bridge.group_id))
2041 return -EMSGSIZE;
2042 if (entry->key.bridge.copy_to_cpu &&
2043 rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
2044 entry->key.bridge.copy_to_cpu))
2045 return -EMSGSIZE;
2046
2047 return 0;
2048}
2049
e5054643
SH		 2050static int
2051rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info,
2052 const struct rocker_flow_tbl_entry *entry)
9f6bbf7c 2053{
4a6bb6d3
SF		 2054 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
2055 entry->key.acl.in_pport))
9f6bbf7c 2056 return -EMSGSIZE;
4a6bb6d3
SF		 2057 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
2058 entry->key.acl.in_pport_mask))
9f6bbf7c
SF		 2059 return -EMSGSIZE;
2060 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2061 ETH_ALEN, entry->key.acl.eth_src))
2062 return -EMSGSIZE;
2063 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK,
2064 ETH_ALEN, entry->key.acl.eth_src_mask))
2065 return -EMSGSIZE;
2066 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2067 ETH_ALEN, entry->key.acl.eth_dst))
2068 return -EMSGSIZE;
2069 if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
2070 ETH_ALEN, entry->key.acl.eth_dst_mask))
2071 return -EMSGSIZE;
9b03c71f
JP		 2072 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
2073 entry->key.acl.eth_type))
9f6bbf7c 2074 return -EMSGSIZE;
9b03c71f
JP		 2075 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2076 entry->key.acl.vlan_id))
9f6bbf7c 2077 return -EMSGSIZE;
9b03c71f
JP		 2078 if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
2079 entry->key.acl.vlan_id_mask))
9f6bbf7c
SF		 2080 return -EMSGSIZE;
2081
2082 switch (ntohs(entry->key.acl.eth_type)) {
2083 case ETH_P_IP:
2084 case ETH_P_IPV6:
2085 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO,
2086 entry->key.acl.ip_proto))
2087 return -EMSGSIZE;
2088 if (rocker_tlv_put_u8(desc_info,
2089 ROCKER_TLV_OF_DPA_IP_PROTO_MASK,
2090 entry->key.acl.ip_proto_mask))
2091 return -EMSGSIZE;
2092 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP,
2093 entry->key.acl.ip_tos & 0x3f))
2094 return -EMSGSIZE;
2095 if (rocker_tlv_put_u8(desc_info,
2096 ROCKER_TLV_OF_DPA_IP_DSCP_MASK,
2097 entry->key.acl.ip_tos_mask & 0x3f))
2098 return -EMSGSIZE;
2099 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN,
2100 (entry->key.acl.ip_tos & 0xc0) >> 6))
2101 return -EMSGSIZE;
2102 if (rocker_tlv_put_u8(desc_info,
2103 ROCKER_TLV_OF_DPA_IP_ECN_MASK,
2104 (entry->key.acl.ip_tos_mask & 0xc0) >> 6))
2105 return -EMSGSIZE;
2106 break;
2107 }
2108
2109 if (entry->key.acl.group_id != ROCKER_GROUP_NONE &&
2110 rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2111 entry->key.acl.group_id))
2112 return -EMSGSIZE;
2113
2114 return 0;
2115}
2116
e5054643
SH		 2117static int rocker_cmd_flow_tbl_add(const struct rocker *rocker,
2118 const struct rocker_port *rocker_port,
9f6bbf7c
SF		 2119 struct rocker_desc_info *desc_info,
2120 void *priv)
2121{
e5054643 2122 const struct rocker_flow_tbl_entry *entry = priv;
9f6bbf7c
SF		 2123 struct rocker_tlv *cmd_info;
2124 int err = 0;
2125
c1beeef7 2126 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
9f6bbf7c
SF		 2127 return -EMSGSIZE;
2128 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2129 if (!cmd_info)
2130 return -EMSGSIZE;
2131 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID,
2132 entry->key.tbl_id))
2133 return -EMSGSIZE;
2134 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY,
2135 entry->key.priority))
2136 return -EMSGSIZE;
2137 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0))
2138 return -EMSGSIZE;
2139 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2140 entry->cookie))
2141 return -EMSGSIZE;
2142
2143 switch (entry->key.tbl_id) {
2144 case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT:
2145 err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry);
2146 break;
2147 case ROCKER_OF_DPA_TABLE_ID_VLAN:
2148 err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry);
2149 break;
2150 case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC:
2151 err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry);
2152 break;
2153 case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING:
2154 err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry);
2155 break;
2156 case ROCKER_OF_DPA_TABLE_ID_BRIDGING:
2157 err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry);
2158 break;
2159 case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY:
2160 err = rocker_cmd_flow_tbl_add_acl(desc_info, entry);
2161 break;
2162 default:
2163 err = -ENOTSUPP;
2164 break;
2165 }
2166
2167 if (err)
2168 return err;
2169
2170 rocker_tlv_nest_end(desc_info, cmd_info);
2171
2172 return 0;
2173}
2174
e5054643
SH		 2175static int rocker_cmd_flow_tbl_del(const struct rocker *rocker,
2176 const struct rocker_port *rocker_port,
9f6bbf7c
SF		 2177 struct rocker_desc_info *desc_info,
2178 void *priv)
2179{
2180 const struct rocker_flow_tbl_entry *entry = priv;
2181 struct rocker_tlv *cmd_info;
2182
c1beeef7 2183 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
9f6bbf7c
SF		 2184 return -EMSGSIZE;
2185 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2186 if (!cmd_info)
2187 return -EMSGSIZE;
2188 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
2189 entry->cookie))
2190 return -EMSGSIZE;
2191 rocker_tlv_nest_end(desc_info, cmd_info);
2192
2193 return 0;
2194}
2195
2196static int
2197rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info,
2198 struct rocker_group_tbl_entry *entry)
2199{
4a6bb6d3 2200 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT,
9f6bbf7c
SF		 2201 ROCKER_GROUP_PORT_GET(entry->group_id)))
2202 return -EMSGSIZE;
2203 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN,
2204 entry->l2_interface.pop_vlan))
2205 return -EMSGSIZE;
2206
2207 return 0;
2208}
2209
2210static int
2211rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info,
e5054643 2212 const struct rocker_group_tbl_entry *entry)
9f6bbf7c
SF		 2213{
2214 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2215 entry->l2_rewrite.group_id))
2216 return -EMSGSIZE;
2217 if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) &&
2218 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2219 ETH_ALEN, entry->l2_rewrite.eth_src))
2220 return -EMSGSIZE;
2221 if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) &&
2222 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2223 ETH_ALEN, entry->l2_rewrite.eth_dst))
2224 return -EMSGSIZE;
2225 if (entry->l2_rewrite.vlan_id &&
9b03c71f
JP		 2226 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2227 entry->l2_rewrite.vlan_id))
9f6bbf7c
SF		 2228 return -EMSGSIZE;
2229
2230 return 0;
2231}
2232
2233static int
2234rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info,
e5054643 2235 const struct rocker_group_tbl_entry *entry)
9f6bbf7c
SF		 2236{
2237 int i;
2238 struct rocker_tlv *group_ids;
2239
2240 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT,
2241 entry->group_count))
2242 return -EMSGSIZE;
2243
2244 group_ids = rocker_tlv_nest_start(desc_info,
2245 ROCKER_TLV_OF_DPA_GROUP_IDS);
2246 if (!group_ids)
2247 return -EMSGSIZE;
2248
2249 for (i = 0; i < entry->group_count; i++)
2250 /* Note TLV array is 1-based */
2251 if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i]))
2252 return -EMSGSIZE;
2253
2254 rocker_tlv_nest_end(desc_info, group_ids);
2255
2256 return 0;
2257}
2258
2259static int
2260rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info,
e5054643 2261 const struct rocker_group_tbl_entry *entry)
9f6bbf7c
SF		 2262{
2263 if (!is_zero_ether_addr(entry->l3_unicast.eth_src) &&
2264 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
2265 ETH_ALEN, entry->l3_unicast.eth_src))
2266 return -EMSGSIZE;
2267 if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) &&
2268 rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
2269 ETH_ALEN, entry->l3_unicast.eth_dst))
2270 return -EMSGSIZE;
2271 if (entry->l3_unicast.vlan_id &&
9b03c71f
JP		 2272 rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
2273 entry->l3_unicast.vlan_id))
9f6bbf7c
SF		 2274 return -EMSGSIZE;
2275 if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK,
2276 entry->l3_unicast.ttl_check))
2277 return -EMSGSIZE;
2278 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
2279 entry->l3_unicast.group_id))
2280 return -EMSGSIZE;
2281
2282 return 0;
2283}
2284
e5054643
SH		 2285static int rocker_cmd_group_tbl_add(const struct rocker *rocker,
2286 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
e5054643
SH		 2331static int rocker_cmd_group_tbl_del(const struct rocker *rocker,
2332 const struct rocker_port *rocker_port,
9f6bbf7c
SF		 2333 struct rocker_desc_info *desc_info,
2334 void *priv)
2335{
2336 const struct rocker_group_tbl_entry *entry = priv;
2337 struct rocker_tlv *cmd_info;
2338
2339 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
2340 return -EMSGSIZE;
2341 cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
2342 if (!cmd_info)
2343 return -EMSGSIZE;
2344 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
2345 entry->group_id))
2346 return -EMSGSIZE;
2347 rocker_tlv_nest_end(desc_info, cmd_info);
2348
2349 return 0;
2350}
2351
c1beeef7
SF		 2352/***************************************************
2353 * Flow, group, FDB, internal VLAN and neigh tables
2354 ***************************************************/
9f6bbf7c
SF		 2355
2356static int rocker_init_tbls(struct rocker *rocker)
2357{
2358 hash_init(rocker->flow_tbl);
2359 spin_lock_init(&rocker->flow_tbl_lock);
2360
2361 hash_init(rocker->group_tbl);
2362 spin_lock_init(&rocker->group_tbl_lock);
2363
2364 hash_init(rocker->fdb_tbl);
2365 spin_lock_init(&rocker->fdb_tbl_lock);
2366
2367 hash_init(rocker->internal_vlan_tbl);
2368 spin_lock_init(&rocker->internal_vlan_tbl_lock);
2369
c1beeef7
SF		 2370 hash_init(rocker->neigh_tbl);
2371 spin_lock_init(&rocker->neigh_tbl_lock);
2372
9f6bbf7c
SF		 2373 return 0;
2374}
2375
2376static void rocker_free_tbls(struct rocker *rocker)
2377{
2378 unsigned long flags;
2379 struct rocker_flow_tbl_entry *flow_entry;
2380 struct rocker_group_tbl_entry *group_entry;
2381 struct rocker_fdb_tbl_entry *fdb_entry;
2382 struct rocker_internal_vlan_tbl_entry *internal_vlan_entry;
c1beeef7 2383 struct rocker_neigh_tbl_entry *neigh_entry;
9f6bbf7c
SF		 2384 struct hlist_node *tmp;
2385 int bkt;
2386
2387 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2388 hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry)
2389 hash_del(&flow_entry->entry);
2390 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2391
2392 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2393 hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry)
2394 hash_del(&group_entry->entry);
2395 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2396
2397 spin_lock_irqsave(&rocker->fdb_tbl_lock, flags);
2398 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry)
2399 hash_del(&fdb_entry->entry);
2400 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags);
2401
2402 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags);
2403 hash_for_each_safe(rocker->internal_vlan_tbl, bkt,
2404 tmp, internal_vlan_entry, entry)
2405 hash_del(&internal_vlan_entry->entry);
2406 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags);
c1beeef7
SF		 2407
2408 spin_lock_irqsave(&rocker->neigh_tbl_lock, flags);
2409 hash_for_each_safe(rocker->neigh_tbl, bkt, tmp, neigh_entry, entry)
2410 hash_del(&neigh_entry->entry);
2411 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, flags);
9f6bbf7c
SF		 2412}
2413
2414static struct rocker_flow_tbl_entry *
e5054643
SH		 2415rocker_flow_tbl_find(const struct rocker *rocker,
2416 const struct rocker_flow_tbl_entry *match)
9f6bbf7c
SF		 2417{
2418 struct rocker_flow_tbl_entry *found;
c1beeef7 2419 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
9f6bbf7c
SF		 2420
2421 hash_for_each_possible(rocker->flow_tbl, found,
2422 entry, match->key_crc32) {
c1beeef7 2423 if (memcmp(&found->key, &match->key, key_len) == 0)
9f6bbf7c
SF		 2424 return found;
2425 }
2426
2427 return NULL;
2428}
2429
2430static int rocker_flow_tbl_add(struct rocker_port *rocker_port,
c4f20321
SF		 2431 enum switchdev_trans trans,
2432 struct rocker_flow_tbl_entry *match)
9f6bbf7c
SF		 2433{
2434 struct rocker *rocker = rocker_port->rocker;
2435 struct rocker_flow_tbl_entry *found;
c1beeef7 2436 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
9f6bbf7c 2437 unsigned long flags;
9f6bbf7c 2438
c1beeef7 2439 match->key_crc32 = crc32(~0, &match->key, key_len);
9f6bbf7c
SF		 2440
2441 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2442
2443 found = rocker_flow_tbl_find(rocker, match);
2444
2445 if (found) {
c1beeef7 2446 match->cookie = found->cookie;
c4f20321
SF		 2447 if (trans != SWITCHDEV_TRANS_PREPARE)
2448 hash_del(&found->entry);
0985df73 2449 rocker_port_kfree(trans, found);
c1beeef7
SF		 2450 found = match;
2451 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD;
9f6bbf7c
SF		 2452 } else {
2453 found = match;
2454 found->cookie = rocker->flow_tbl_next_cookie++;
c1beeef7 2455 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD;
9f6bbf7c
SF		 2456 }
2457
c4f20321
SF		 2458 if (trans != SWITCHDEV_TRANS_PREPARE)
2459 hash_add(rocker->flow_tbl, &found->entry, found->key_crc32);
9f6bbf7c
SF		 2460
2461 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2462
c4f20321 2463 return rocker_cmd_exec(rocker, rocker_port, trans,
c1beeef7 2464 rocker_cmd_flow_tbl_add,
c4f20321 2465 found, NULL, NULL);
9f6bbf7c
SF		 2466}
2467
2468static int rocker_flow_tbl_del(struct rocker_port *rocker_port,
c4f20321
SF		 2469 enum switchdev_trans trans,
2470 struct rocker_flow_tbl_entry *match)
9f6bbf7c
SF		 2471{
2472 struct rocker *rocker = rocker_port->rocker;
2473 struct rocker_flow_tbl_entry *found;
c1beeef7 2474 size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
9f6bbf7c 2475 unsigned long flags;
9f6bbf7c
SF		 2476 int err = 0;
2477
c1beeef7 2478 match->key_crc32 = crc32(~0, &match->key, key_len);
9f6bbf7c
SF		 2479
2480 spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
2481
2482 found = rocker_flow_tbl_find(rocker, match);
2483
2484 if (found) {
c4f20321
SF		 2485 if (trans != SWITCHDEV_TRANS_PREPARE)
2486 hash_del(&found->entry);
c1beeef7 2487 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL;
9f6bbf7c
SF		 2488 }
2489
2490 spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
2491
0985df73 2492 rocker_port_kfree(trans, match);
9f6bbf7c 2493
c1beeef7 2494 if (found) {
c4f20321 2495 err = rocker_cmd_exec(rocker, rocker_port, trans,
9f6bbf7c 2496 rocker_cmd_flow_tbl_del,
c4f20321 2497 found, NULL, NULL);
0985df73 2498 rocker_port_kfree(trans, found);
9f6bbf7c
SF		 2499 }
2500
2501 return err;
2502}
2503
9f6bbf7c 2504static int rocker_flow_tbl_do(struct rocker_port *rocker_port,
c4f20321
SF		 2505 enum switchdev_trans trans, int flags,
2506 struct rocker_flow_tbl_entry *entry)
9f6bbf7c 2507{
9f6bbf7c 2508 if (flags & ROCKER_OP_FLAG_REMOVE)
c4f20321 2509 return rocker_flow_tbl_del(rocker_port, trans, entry);
9f6bbf7c 2510 else
c4f20321 2511 return rocker_flow_tbl_add(rocker_port, trans, entry);
9f6bbf7c
SF		 2512}
2513
2514static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port,
c4f20321
SF		 2515 enum switchdev_trans trans, int flags,
2516 u32 in_pport, u32 in_pport_mask,
9f6bbf7c
SF		 2517 enum rocker_of_dpa_table_id goto_tbl)
2518{
2519 struct rocker_flow_tbl_entry *entry;
2520
c4f20321 2521 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2522 if (!entry)
2523 return -ENOMEM;
2524
2525 entry->key.priority = ROCKER_PRIORITY_IG_PORT;
2526 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT;
4a6bb6d3
SF		 2527 entry->key.ig_port.in_pport = in_pport;
2528 entry->key.ig_port.in_pport_mask = in_pport_mask;
9f6bbf7c
SF		 2529 entry->key.ig_port.goto_tbl = goto_tbl;
2530
c4f20321 2531 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2532}
2533
2534static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port,
c4f20321
SF		 2535 enum switchdev_trans trans, int flags,
2536 u32 in_pport, __be16 vlan_id,
2537 __be16 vlan_id_mask,
9f6bbf7c
SF		 2538 enum rocker_of_dpa_table_id goto_tbl,
2539 bool untagged, __be16 new_vlan_id)
2540{
2541 struct rocker_flow_tbl_entry *entry;
2542
c4f20321 2543 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2544 if (!entry)
2545 return -ENOMEM;
2546
2547 entry->key.priority = ROCKER_PRIORITY_VLAN;
2548 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN;
4a6bb6d3 2549 entry->key.vlan.in_pport = in_pport;
9f6bbf7c
SF		 2550 entry->key.vlan.vlan_id = vlan_id;
2551 entry->key.vlan.vlan_id_mask = vlan_id_mask;
2552 entry->key.vlan.goto_tbl = goto_tbl;
2553
2554 entry->key.vlan.untagged = untagged;
2555 entry->key.vlan.new_vlan_id = new_vlan_id;
2556
c4f20321 2557 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2558}
2559
2560static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port,
c4f20321 2561 enum switchdev_trans trans,
4a6bb6d3 2562 u32 in_pport, u32 in_pport_mask,
9f6bbf7c
SF		 2563 __be16 eth_type, const u8 *eth_dst,
2564 const u8 *eth_dst_mask, __be16 vlan_id,
2565 __be16 vlan_id_mask, bool copy_to_cpu,
2566 int flags)
2567{
2568 struct rocker_flow_tbl_entry *entry;
2569
c4f20321 2570 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2571 if (!entry)
2572 return -ENOMEM;
2573
2574 if (is_multicast_ether_addr(eth_dst)) {
2575 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST;
2576 entry->key.term_mac.goto_tbl =
2577 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING;
2578 } else {
2579 entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST;
2580 entry->key.term_mac.goto_tbl =
2581 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2582 }
2583
2584 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
4a6bb6d3
SF		 2585 entry->key.term_mac.in_pport = in_pport;
2586 entry->key.term_mac.in_pport_mask = in_pport_mask;
9f6bbf7c
SF		 2587 entry->key.term_mac.eth_type = eth_type;
2588 ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst);
2589 ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask);
2590 entry->key.term_mac.vlan_id = vlan_id;
2591 entry->key.term_mac.vlan_id_mask = vlan_id_mask;
2592 entry->key.term_mac.copy_to_cpu = copy_to_cpu;
2593
c4f20321 2594 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2595}
2596
2597static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port,
c4f20321 2598 enum switchdev_trans trans, int flags,
9f6bbf7c
SF		 2599 const u8 *eth_dst, const u8 *eth_dst_mask,
2600 __be16 vlan_id, u32 tunnel_id,
2601 enum rocker_of_dpa_table_id goto_tbl,
2602 u32 group_id, bool copy_to_cpu)
2603{
2604 struct rocker_flow_tbl_entry *entry;
2605 u32 priority;
2606 bool vlan_bridging = !!vlan_id;
2607 bool dflt = !eth_dst || (eth_dst && eth_dst_mask);
2608 bool wild = false;
2609
c4f20321 2610 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2611 if (!entry)
2612 return -ENOMEM;
2613
2614 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING;
2615
2616 if (eth_dst) {
2617 entry->key.bridge.has_eth_dst = 1;
2618 ether_addr_copy(entry->key.bridge.eth_dst, eth_dst);
2619 }
2620 if (eth_dst_mask) {
2621 entry->key.bridge.has_eth_dst_mask = 1;
2622 ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask);
629161f6 2623 if (!ether_addr_equal(eth_dst_mask, ff_mac))
9f6bbf7c
SF		 2624 wild = true;
2625 }
2626
2627 priority = ROCKER_PRIORITY_UNKNOWN;
51ace887 2628 if (vlan_bridging && dflt && wild)
9f6bbf7c 2629 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD;
51ace887 2630 else if (vlan_bridging && dflt && !wild)
9f6bbf7c 2631 priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT;
51ace887 2632 else if (vlan_bridging && !dflt)
9f6bbf7c 2633 priority = ROCKER_PRIORITY_BRIDGING_VLAN;
51ace887 2634 else if (!vlan_bridging && dflt && wild)
9f6bbf7c 2635 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD;
51ace887 2636 else if (!vlan_bridging && dflt && !wild)
9f6bbf7c 2637 priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT;
51ace887 2638 else if (!vlan_bridging && !dflt)
9f6bbf7c
SF		 2639 priority = ROCKER_PRIORITY_BRIDGING_TENANT;
2640
2641 entry->key.priority = priority;
2642 entry->key.bridge.vlan_id = vlan_id;
2643 entry->key.bridge.tunnel_id = tunnel_id;
2644 entry->key.bridge.goto_tbl = goto_tbl;
2645 entry->key.bridge.group_id = group_id;
2646 entry->key.bridge.copy_to_cpu = copy_to_cpu;
2647
c4f20321 2648 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2649}
2650
c1beeef7 2651static int rocker_flow_tbl_ucast4_routing(struct rocker_port *rocker_port,
c4f20321 2652 enum switchdev_trans trans,
c1beeef7
SF		 2653 __be16 eth_type, __be32 dst,
2654 __be32 dst_mask, u32 priority,
2655 enum rocker_of_dpa_table_id goto_tbl,
2656 u32 group_id, int flags)
2657{
2658 struct rocker_flow_tbl_entry *entry;
2659
c4f20321 2660 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
c1beeef7
SF		 2661 if (!entry)
2662 return -ENOMEM;
2663
2664 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
2665 entry->key.priority = priority;
2666 entry->key.ucast_routing.eth_type = eth_type;
2667 entry->key.ucast_routing.dst4 = dst;
2668 entry->key.ucast_routing.dst4_mask = dst_mask;
2669 entry->key.ucast_routing.goto_tbl = goto_tbl;
2670 entry->key.ucast_routing.group_id = group_id;
2671 entry->key_len = offsetof(struct rocker_flow_tbl_key,
2672 ucast_routing.group_id);
2673
c4f20321 2674 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
c1beeef7
SF		 2675}
2676
9f6bbf7c 2677static int rocker_flow_tbl_acl(struct rocker_port *rocker_port,
c4f20321
SF		 2678 enum switchdev_trans trans, int flags,
2679 u32 in_pport, u32 in_pport_mask,
9f6bbf7c
SF		 2680 const u8 *eth_src, const u8 *eth_src_mask,
2681 const u8 *eth_dst, const u8 *eth_dst_mask,
c4f20321
SF		 2682 __be16 eth_type, __be16 vlan_id,
2683 __be16 vlan_id_mask, u8 ip_proto,
2684 u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask,
9f6bbf7c
SF		 2685 u32 group_id)
2686{
2687 u32 priority;
2688 struct rocker_flow_tbl_entry *entry;
2689
c4f20321 2690 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2691 if (!entry)
2692 return -ENOMEM;
2693
2694 priority = ROCKER_PRIORITY_ACL_NORMAL;
2695 if (eth_dst && eth_dst_mask) {
629161f6 2696 if (ether_addr_equal(eth_dst_mask, mcast_mac))
9f6bbf7c
SF		 2697 priority = ROCKER_PRIORITY_ACL_DFLT;
2698 else if (is_link_local_ether_addr(eth_dst))
2699 priority = ROCKER_PRIORITY_ACL_CTRL;
2700 }
2701
2702 entry->key.priority = priority;
2703 entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
4a6bb6d3
SF		 2704 entry->key.acl.in_pport = in_pport;
2705 entry->key.acl.in_pport_mask = in_pport_mask;
9f6bbf7c
SF		 2706
2707 if (eth_src)
2708 ether_addr_copy(entry->key.acl.eth_src, eth_src);
2709 if (eth_src_mask)
2710 ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask);
2711 if (eth_dst)
2712 ether_addr_copy(entry->key.acl.eth_dst, eth_dst);
2713 if (eth_dst_mask)
2714 ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask);
2715
2716 entry->key.acl.eth_type = eth_type;
2717 entry->key.acl.vlan_id = vlan_id;
2718 entry->key.acl.vlan_id_mask = vlan_id_mask;
2719 entry->key.acl.ip_proto = ip_proto;
2720 entry->key.acl.ip_proto_mask = ip_proto_mask;
2721 entry->key.acl.ip_tos = ip_tos;
2722 entry->key.acl.ip_tos_mask = ip_tos_mask;
2723 entry->key.acl.group_id = group_id;
2724
c4f20321 2725 return rocker_flow_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2726}
2727
2728static struct rocker_group_tbl_entry *
e5054643
SH		 2729rocker_group_tbl_find(const struct rocker *rocker,
2730 const struct rocker_group_tbl_entry *match)
9f6bbf7c
SF		 2731{
2732 struct rocker_group_tbl_entry *found;
2733
2734 hash_for_each_possible(rocker->group_tbl, found,
2735 entry, match->group_id) {
2736 if (found->group_id == match->group_id)
2737 return found;
2738 }
2739
2740 return NULL;
2741}
2742
0985df73 2743static void rocker_group_tbl_entry_free(enum switchdev_trans trans,
c4f20321 2744 struct rocker_group_tbl_entry *entry)
9f6bbf7c
SF		 2745{
2746 switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
2747 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
2748 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
0985df73 2749 rocker_port_kfree(trans, entry->group_ids);
9f6bbf7c
SF		 2750 break;
2751 default:
2752 break;
2753 }
0985df73 2754 rocker_port_kfree(trans, entry);
9f6bbf7c
SF		 2755}
2756
2757static int rocker_group_tbl_add(struct rocker_port *rocker_port,
c4f20321
SF		 2758 enum switchdev_trans trans,
2759 struct rocker_group_tbl_entry *match)
9f6bbf7c
SF		 2760{
2761 struct rocker *rocker = rocker_port->rocker;
2762 struct rocker_group_tbl_entry *found;
2763 unsigned long flags;
9f6bbf7c
SF		 2764
2765 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2766
2767 found = rocker_group_tbl_find(rocker, match);
2768
2769 if (found) {
c4f20321
SF		 2770 if (trans != SWITCHDEV_TRANS_PREPARE)
2771 hash_del(&found->entry);
0985df73 2772 rocker_group_tbl_entry_free(trans, found);
9f6bbf7c
SF		 2773 found = match;
2774 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD;
2775 } else {
2776 found = match;
2777 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD;
2778 }
2779
c4f20321
SF		 2780 if (trans != SWITCHDEV_TRANS_PREPARE)
2781 hash_add(rocker->group_tbl, &found->entry, found->group_id);
9f6bbf7c
SF		 2782
2783 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2784
c4f20321 2785 return rocker_cmd_exec(rocker, rocker_port, trans,
c1beeef7 2786 rocker_cmd_group_tbl_add,
c4f20321 2787 found, NULL, NULL);
9f6bbf7c
SF		 2788}
2789
2790static int rocker_group_tbl_del(struct rocker_port *rocker_port,
c4f20321
SF		 2791 enum switchdev_trans trans,
2792 struct rocker_group_tbl_entry *match)
9f6bbf7c
SF		 2793{
2794 struct rocker *rocker = rocker_port->rocker;
2795 struct rocker_group_tbl_entry *found;
2796 unsigned long flags;
2797 int err = 0;
2798
2799 spin_lock_irqsave(&rocker->group_tbl_lock, flags);
2800
2801 found = rocker_group_tbl_find(rocker, match);
2802
2803 if (found) {
c4f20321
SF		 2804 if (trans != SWITCHDEV_TRANS_PREPARE)
2805 hash_del(&found->entry);
9f6bbf7c
SF		 2806 found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL;
2807 }
2808
2809 spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
2810
0985df73 2811 rocker_group_tbl_entry_free(trans, match);
9f6bbf7c
SF		 2812
2813 if (found) {
c4f20321 2814 err = rocker_cmd_exec(rocker, rocker_port, trans,
9f6bbf7c 2815 rocker_cmd_group_tbl_del,
c4f20321 2816 found, NULL, NULL);
0985df73 2817 rocker_group_tbl_entry_free(trans, found);
9f6bbf7c
SF		 2818 }
2819
2820 return err;
2821}
2822
2823static int rocker_group_tbl_do(struct rocker_port *rocker_port,
c4f20321
SF		 2824 enum switchdev_trans trans, int flags,
2825 struct rocker_group_tbl_entry *entry)
9f6bbf7c 2826{
9f6bbf7c 2827 if (flags & ROCKER_OP_FLAG_REMOVE)
c4f20321 2828 return rocker_group_tbl_del(rocker_port, trans, entry);
9f6bbf7c 2829 else
c4f20321 2830 return rocker_group_tbl_add(rocker_port, trans, entry);
9f6bbf7c
SF		 2831}
2832
2833static int rocker_group_l2_interface(struct rocker_port *rocker_port,
c4f20321
SF		 2834 enum switchdev_trans trans, int flags,
2835 __be16 vlan_id, u32 out_pport,
2836 int pop_vlan)
9f6bbf7c
SF		 2837{
2838 struct rocker_group_tbl_entry *entry;
2839
c4f20321 2840 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2841 if (!entry)
2842 return -ENOMEM;
2843
4a6bb6d3 2844 entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
9f6bbf7c
SF		 2845 entry->l2_interface.pop_vlan = pop_vlan;
2846
c4f20321 2847 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2848}
2849
2850static int rocker_group_l2_fan_out(struct rocker_port *rocker_port,
c4f20321 2851 enum switchdev_trans trans,
9f6bbf7c 2852 int flags, u8 group_count,
e5054643 2853 const u32 *group_ids, u32 group_id)
9f6bbf7c
SF		 2854{
2855 struct rocker_group_tbl_entry *entry;
2856
c4f20321 2857 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
9f6bbf7c
SF		 2858 if (!entry)
2859 return -ENOMEM;
2860
2861 entry->group_id = group_id;
2862 entry->group_count = group_count;
2863
c4f20321
SF		 2864 entry->group_ids = rocker_port_kcalloc(rocker_port, trans, group_count,
2865 sizeof(u32));
9f6bbf7c 2866 if (!entry->group_ids) {
0985df73 2867 rocker_port_kfree(trans, entry);
9f6bbf7c
SF		 2868 return -ENOMEM;
2869 }
2870 memcpy(entry->group_ids, group_ids, group_count * sizeof(u32));
2871
c4f20321 2872 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
9f6bbf7c
SF		 2873}
2874
2875static int rocker_group_l2_flood(struct rocker_port *rocker_port,
c4f20321
SF		 2876 enum switchdev_trans trans, int flags,
2877 __be16 vlan_id, u8 group_count,
e5054643 2878 const u32 *group_ids, u32 group_id)
9f6bbf7c 2879{
c4f20321 2880 return rocker_group_l2_fan_out(rocker_port, trans, flags,
9f6bbf7c
SF		 2881 group_count, group_ids,
2882 group_id);
2883}
2884
c1beeef7 2885static int rocker_group_l3_unicast(struct rocker_port *rocker_port,
c4f20321 2886 enum switchdev_trans trans, int flags,
e5054643 2887 u32 index, const u8 *src_mac, const u8 *dst_mac,
c4f20321 2888 __be16 vlan_id, bool ttl_check, u32 pport)
c1beeef7
SF		 2889{
2890 struct rocker_group_tbl_entry *entry;
2891
c4f20321 2892 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
c1beeef7
SF		 2893 if (!entry)
2894 return -ENOMEM;
2895
2896 entry->group_id = ROCKER_GROUP_L3_UNICAST(index);
2897 if (src_mac)
2898 ether_addr_copy(entry->l3_unicast.eth_src, src_mac);
2899 if (dst_mac)
2900 ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac);
2901 entry->l3_unicast.vlan_id = vlan_id;
2902 entry->l3_unicast.ttl_check = ttl_check;
2903 entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport);
2904
c4f20321 2905 return rocker_group_tbl_do(rocker_port, trans, flags, entry);
c1beeef7
SF		 2906}
2907
2908static struct rocker_neigh_tbl_entry *
e5054643 2909rocker_neigh_tbl_find(const struct rocker *rocker, __be32 ip_addr)
c1beeef7
SF		 2910{
2911 struct rocker_neigh_tbl_entry *found;
2912
0f43deba
SF		 2913 hash_for_each_possible(rocker->neigh_tbl, found,
2914 entry, be32_to_cpu(ip_addr))
c1beeef7
SF		 2915 if (found->ip_addr == ip_addr)
2916 return found;
2917
2918 return NULL;
2919}
2920
2921static void _rocker_neigh_add(struct rocker *rocker,
550ecc92 2922 enum switchdev_trans trans,
c1beeef7
SF		 2923 struct rocker_neigh_tbl_entry *entry)
2924{
550ecc92
SH		 2925 entry->index = rocker->neigh_tbl_next_index;
2926 if (trans == SWITCHDEV_TRANS_PREPARE)
2927 return;
2928 rocker->neigh_tbl_next_index++;
c1beeef7 2929 entry->ref_count++;
0f43deba
SF		 2930 hash_add(rocker->neigh_tbl, &entry->entry,
2931 be32_to_cpu(entry->ip_addr));
c1beeef7
SF		 2932}
2933
0985df73 2934static void _rocker_neigh_del(enum switchdev_trans trans,
c1beeef7
SF		 2935 struct rocker_neigh_tbl_entry *entry)
2936{
550ecc92
SH		 2937 if (trans == SWITCHDEV_TRANS_PREPARE)
2938 return;
c1beeef7
SF		 2939 if (--entry->ref_count == 0) {
2940 hash_del(&entry->entry);
0985df73 2941 rocker_port_kfree(trans, entry);
c1beeef7
SF		 2942 }
2943}
2944
c4f20321 2945static void _rocker_neigh_update(struct rocker_neigh_tbl_entry *entry,
550ecc92 2946 enum switchdev_trans trans,
e5054643 2947 const u8 *eth_dst, bool ttl_check)
c1beeef7
SF		 2948{
2949 if (eth_dst) {
2950 ether_addr_copy(entry->eth_dst, eth_dst);
2951 entry->ttl_check = ttl_check;
550ecc92 2952 } else if (trans != SWITCHDEV_TRANS_PREPARE) {
c1beeef7
SF		 2953 entry->ref_count++;
2954 }
2955}
2956
2957static int rocker_port_ipv4_neigh(struct rocker_port *rocker_port,
c4f20321 2958 enum switchdev_trans trans,
e5054643 2959 int flags, __be32 ip_addr, const u8 *eth_dst)
c1beeef7
SF		 2960{
2961 struct rocker *rocker = rocker_port->rocker;
2962 struct rocker_neigh_tbl_entry *entry;
2963 struct rocker_neigh_tbl_entry *found;
2964 unsigned long lock_flags;
2965 __be16 eth_type = htons(ETH_P_IP);
2966 enum rocker_of_dpa_table_id goto_tbl =
2967 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
2968 u32 group_id;
2969 u32 priority = 0;
2970 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
2971 bool updating;
2972 bool removing;
2973 int err = 0;
2974
c4f20321 2975 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
c1beeef7
SF		 2976 if (!entry)
2977 return -ENOMEM;
2978
2979 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
2980
2981 found = rocker_neigh_tbl_find(rocker, ip_addr);
2982
2983 updating = found && adding;
2984 removing = found && !adding;
2985 adding = !found && adding;
2986
2987 if (adding) {
2988 entry->ip_addr = ip_addr;
2989 entry->dev = rocker_port->dev;
2990 ether_addr_copy(entry->eth_dst, eth_dst);
2991 entry->ttl_check = true;
550ecc92 2992 _rocker_neigh_add(rocker, trans, entry);
c1beeef7
SF		 2993 } else if (removing) {
2994 memcpy(entry, found, sizeof(*entry));
0985df73 2995 _rocker_neigh_del(trans, found);
c1beeef7 2996 } else if (updating) {
550ecc92 2997 _rocker_neigh_update(found, trans, eth_dst, true);
c1beeef7
SF		 2998 memcpy(entry, found, sizeof(*entry));
2999 } else {
3000 err = -ENOENT;
3001 }
3002
3003 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
3004
3005 if (err)
3006 goto err_out;
3007
3008 /* For each active neighbor, we have an L3 unicast group and
3009 * a /32 route to the neighbor, which uses the L3 unicast
3010 * group. The L3 unicast group can also be referred to by
3011 * other routes' nexthops.
3012 */
3013
c4f20321 3014 err = rocker_group_l3_unicast(rocker_port, trans, flags,
c1beeef7
SF		 3015 entry->index,
3016 rocker_port->dev->dev_addr,
3017 entry->eth_dst,
3018 rocker_port->internal_vlan_id,
3019 entry->ttl_check,
3020 rocker_port->pport);
3021 if (err) {
3022 netdev_err(rocker_port->dev,
3023 "Error (%d) L3 unicast group index %d\n",
3024 err, entry->index);
3025 goto err_out;
3026 }
3027
3028 if (adding || removing) {
3029 group_id = ROCKER_GROUP_L3_UNICAST(entry->index);
c4f20321 3030 err = rocker_flow_tbl_ucast4_routing(rocker_port, trans,
c1beeef7
SF		 3031 eth_type, ip_addr,
3032 inet_make_mask(32),
3033 priority, goto_tbl,
3034 group_id, flags);
3035
3036 if (err)
3037 netdev_err(rocker_port->dev,
3038 "Error (%d) /32 unicast route %pI4 group 0x%08x\n",
3039 err, &entry->ip_addr, group_id);
3040 }
3041
3042err_out:
3043 if (!adding)
0985df73 3044 rocker_port_kfree(trans, entry);
c1beeef7
SF		 3045
3046 return err;
3047}
3048
3049static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port,
c4f20321 3050 enum switchdev_trans trans, __be32 ip_addr)
c1beeef7
SF		 3051{
3052 struct net_device *dev = rocker_port->dev;
0f43deba 3053 struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr);
c1beeef7
SF		 3054 int err = 0;
3055
4133fc09 3056 if (!n) {
c1beeef7 3057 n = neigh_create(&arp_tbl, &ip_addr, dev);
4133fc09
YX		 3058 if (IS_ERR(n))
3059 return IS_ERR(n);
3060 }
c1beeef7
SF		 3061
3062 /* If the neigh is already resolved, then go ahead and
3063 * install the entry, otherwise start the ARP process to
3064 * resolve the neigh.
3065 */
3066
3067 if (n->nud_state & NUD_VALID)
c4f20321
SF		 3068 err = rocker_port_ipv4_neigh(rocker_port, trans, 0,
3069 ip_addr, n->ha);
c1beeef7
SF		 3070 else
3071 neigh_event_send(n, NULL);
3072
4133fc09 3073 neigh_release(n);
c1beeef7
SF		 3074 return err;
3075}
3076
c4f20321
SF		 3077static int rocker_port_ipv4_nh(struct rocker_port *rocker_port,
3078 enum switchdev_trans trans, int flags,
c1beeef7
SF		 3079 __be32 ip_addr, u32 *index)
3080{
3081 struct rocker *rocker = rocker_port->rocker;
3082 struct rocker_neigh_tbl_entry *entry;
3083 struct rocker_neigh_tbl_entry *found;
3084 unsigned long lock_flags;
3085 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3086 bool updating;
3087 bool removing;
3088 bool resolved = true;
3089 int err = 0;
3090
c4f20321 3091 entry = rocker_port_kzalloc(rocker_port, trans, sizeof(*entry));
c1beeef7
SF		 3092 if (!entry)
3093 return -ENOMEM;
3094
3095 spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
3096
3097 found = rocker_neigh_tbl_find(rocker, ip_addr);
3098 if (found)
3099 *index = found->index;
3100
3101 updating = found && adding;
3102 removing = found && !adding;
3103 adding = !found && adding;
3104
3105 if (adding) {
3106 entry->ip_addr = ip_addr;
3107 entry->dev = rocker_port->dev;
550ecc92 3108 _rocker_neigh_add(rocker, trans, entry);
c1beeef7
SF		 3109 *index = entry->index;
3110 resolved = false;
3111 } else if (removing) {
0985df73 3112 _rocker_neigh_del(trans, found);
c1beeef7 3113 } else if (updating) {
550ecc92 3114 _rocker_neigh_update(found, trans, NULL, false);
c1beeef7
SF		 3115 resolved = !is_zero_ether_addr(found->eth_dst);
3116 } else {
3117 err = -ENOENT;
3118 }
3119
3120 spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
3121
3122 if (!adding)
0985df73 3123 rocker_port_kfree(trans, entry);
c1beeef7
SF		 3124
3125 if (err)
3126 return err;
3127
3128 /* Resolved means neigh ip_addr is resolved to neigh mac. */
3129
3130 if (!resolved)
c4f20321 3131 err = rocker_port_ipv4_resolve(rocker_port, trans, ip_addr);
c1beeef7
SF		 3132
3133 return err;
3134}
3135
6c707945 3136static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port,
c4f20321 3137 enum switchdev_trans trans,
6c707945
SF		 3138 int flags, __be16 vlan_id)
3139{
3140 struct rocker_port *p;
e5054643 3141 const struct rocker *rocker = rocker_port->rocker;
6c707945 3142 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
04f49faf 3143 u32 *group_ids;
6c707945 3144 u8 group_count = 0;
04f49faf 3145 int err = 0;
6c707945
SF		 3146 int i;
3147
c4f20321
SF		 3148 group_ids = rocker_port_kcalloc(rocker_port, trans, rocker->port_count,
3149 sizeof(u32));
04f49faf
SF		 3150 if (!group_ids)
3151 return -ENOMEM;
3152
6c707945
SF		 3153 /* Adjust the flood group for this VLAN. The flood group
3154 * references an L2 interface group for each port in this
3155 * VLAN.
3156 */
3157
3158 for (i = 0; i < rocker->port_count; i++) {
3159 p = rocker->ports[i];
3160 if (!rocker_port_is_bridged(p))
3161 continue;
3162 if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) {
3163 group_ids[group_count++] =
4a6bb6d3 3164 ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport);
6c707945
SF		 3165 }
3166 }
3167
3168 /* If there are no bridged ports in this VLAN, we're done */
3169 if (group_count == 0)
04f49faf 3170 goto no_ports_in_vlan;
6c707945 3171
c4f20321
SF		 3172 err = rocker_group_l2_flood(rocker_port, trans, flags, vlan_id,
3173 group_count, group_ids, group_id);
6c707945
SF		 3174 if (err)
3175 netdev_err(rocker_port->dev,
3176 "Error (%d) port VLAN l2 flood group\n", err);
3177
04f49faf 3178no_ports_in_vlan:
0985df73 3179 rocker_port_kfree(trans, group_ids);
6c707945
SF		 3180 return err;
3181}
3182
3183static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port,
c4f20321
SF		 3184 enum switchdev_trans trans, int flags,
3185 __be16 vlan_id, bool pop_vlan)
6c707945 3186{
e5054643 3187 const struct rocker *rocker = rocker_port->rocker;
6c707945
SF		 3188 struct rocker_port *p;
3189 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
4a6bb6d3 3190 u32 out_pport;
6c707945
SF		 3191 int ref = 0;
3192 int err;
3193 int i;
3194
3195 /* An L2 interface group for this port in this VLAN, but
3196 * only when port STP state is LEARNING|FORWARDING.
3197 */
3198
3199 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3200 rocker_port->stp_state == BR_STATE_FORWARDING) {
4a6bb6d3 3201 out_pport = rocker_port->pport;
c4f20321
SF		 3202 err = rocker_group_l2_interface(rocker_port, trans, flags,
3203 vlan_id, out_pport, pop_vlan);
6c707945
SF		 3204 if (err) {
3205 netdev_err(rocker_port->dev,
4a6bb6d3
SF		 3206 "Error (%d) port VLAN l2 group for pport %d\n",
3207 err, out_pport);
6c707945
SF		 3208 return err;
3209 }
3210 }
3211
3212 /* An L2 interface group for this VLAN to CPU port.
3213 * Add when first port joins this VLAN and destroy when
3214 * last port leaves this VLAN.
3215 */
3216
3217 for (i = 0; i < rocker->port_count; i++) {
3218 p = rocker->ports[i];
3219 if (test_bit(ntohs(vlan_id), p->vlan_bitmap))
3220 ref++;
3221 }
3222
3223 if ((!adding || ref != 1) && (adding || ref != 0))
3224 return 0;
3225
4a6bb6d3 3226 out_pport = 0;
c4f20321
SF		 3227 err = rocker_group_l2_interface(rocker_port, trans, flags,
3228 vlan_id, out_pport, pop_vlan);
6c707945
SF		 3229 if (err) {
3230 netdev_err(rocker_port->dev,
3231 "Error (%d) port VLAN l2 group for CPU port\n", err);
3232 return err;
3233 }
3234
3235 return 0;
3236}
3237
9f6bbf7c
SF		 3238static struct rocker_ctrl {
3239 const u8 *eth_dst;
3240 const u8 *eth_dst_mask;
11e6c65a 3241 __be16 eth_type;
9f6bbf7c
SF		 3242 bool acl;
3243 bool bridge;
3244 bool term;
3245 bool copy_to_cpu;
3246} rocker_ctrls[] = {
3247 [ROCKER_CTRL_LINK_LOCAL_MCAST] = {
3248 /* pass link local multicast pkts up to CPU for filtering */
3249 .eth_dst = ll_mac,
3250 .eth_dst_mask = ll_mask,
3251 .acl = true,
3252 },
3253 [ROCKER_CTRL_LOCAL_ARP] = {
3254 /* pass local ARP pkts up to CPU */
3255 .eth_dst = zero_mac,
3256 .eth_dst_mask = zero_mac,
3257 .eth_type = htons(ETH_P_ARP),
3258 .acl = true,
3259 },
3260 [ROCKER_CTRL_IPV4_MCAST] = {
3261 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
3262 .eth_dst = ipv4_mcast,
3263 .eth_dst_mask = ipv4_mask,
3264 .eth_type = htons(ETH_P_IP),
3265 .term = true,
3266 .copy_to_cpu = true,
3267 },
3268 [ROCKER_CTRL_IPV6_MCAST] = {
3269 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
3270 .eth_dst = ipv6_mcast,
3271 .eth_dst_mask = ipv6_mask,
3272 .eth_type = htons(ETH_P_IPV6),
3273 .term = true,
3274 .copy_to_cpu = true,
3275 },
3276 [ROCKER_CTRL_DFLT_BRIDGING] = {
3277 /* flood any pkts on vlan */
3278 .bridge = true,
3279 .copy_to_cpu = true,
3280 },
3281};
3282
3283static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port,
c4f20321 3284 enum switchdev_trans trans, int flags,
e5054643 3285 const struct rocker_ctrl *ctrl, __be16 vlan_id)
9f6bbf7c 3286{
4a6bb6d3
SF		 3287 u32 in_pport = rocker_port->pport;
3288 u32 in_pport_mask = 0xffffffff;
3289 u32 out_pport = 0;
e5054643
SH		 3290 const u8 *eth_src = NULL;
3291 const u8 *eth_src_mask = NULL;
9f6bbf7c
SF		 3292 __be16 vlan_id_mask = htons(0xffff);
3293 u8 ip_proto = 0;
3294 u8 ip_proto_mask = 0;
3295 u8 ip_tos = 0;
3296 u8 ip_tos_mask = 0;
4a6bb6d3 3297 u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
9f6bbf7c
SF		 3298 int err;
3299
c4f20321 3300 err = rocker_flow_tbl_acl(rocker_port, trans, flags,
4a6bb6d3 3301 in_pport, in_pport_mask,
9f6bbf7c
SF		 3302 eth_src, eth_src_mask,
3303 ctrl->eth_dst, ctrl->eth_dst_mask,
3304 ctrl->eth_type,
3305 vlan_id, vlan_id_mask,
3306 ip_proto, ip_proto_mask,
3307 ip_tos, ip_tos_mask,
3308 group_id);
3309
3310 if (err)
3311 netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err);
3312
3313 return err;
3314}
3315
6c707945 3316static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port,
c4f20321 3317 enum switchdev_trans trans, int flags,
e5054643 3318 const struct rocker_ctrl *ctrl,
6c707945
SF		 3319 __be16 vlan_id)
3320{
3321 enum rocker_of_dpa_table_id goto_tbl =
3322 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3323 u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
3324 u32 tunnel_id = 0;
3325 int err;
3326
3327 if (!rocker_port_is_bridged(rocker_port))
3328 return 0;
3329
c4f20321 3330 err = rocker_flow_tbl_bridge(rocker_port, trans, flags,
6c707945
SF		 3331 ctrl->eth_dst, ctrl->eth_dst_mask,
3332 vlan_id, tunnel_id,
3333 goto_tbl, group_id, ctrl->copy_to_cpu);
3334
3335 if (err)
3336 netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err);
3337
3338 return err;
3339}
3340
9f6bbf7c 3341static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port,
c4f20321 3342 enum switchdev_trans trans, int flags,
e5054643 3343 const struct rocker_ctrl *ctrl, __be16 vlan_id)
9f6bbf7c 3344{
4a6bb6d3 3345 u32 in_pport_mask = 0xffffffff;
9f6bbf7c
SF		 3346 __be16 vlan_id_mask = htons(0xffff);
3347 int err;
3348
3349 if (ntohs(vlan_id) == 0)
3350 vlan_id = rocker_port->internal_vlan_id;
3351
c4f20321 3352 err = rocker_flow_tbl_term_mac(rocker_port, trans,
4a6bb6d3 3353 rocker_port->pport, in_pport_mask,
9f6bbf7c
SF		 3354 ctrl->eth_type, ctrl->eth_dst,
3355 ctrl->eth_dst_mask, vlan_id,
3356 vlan_id_mask, ctrl->copy_to_cpu,
3357 flags);
3358
3359 if (err)
3360 netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err);
3361
3362 return err;
3363}
3364
c4f20321
SF		 3365static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port,
3366 enum switchdev_trans trans, int flags,
e5054643 3367 const struct rocker_ctrl *ctrl, __be16 vlan_id)
9f6bbf7c
SF		 3368{
3369 if (ctrl->acl)
c4f20321 3370 return rocker_port_ctrl_vlan_acl(rocker_port, trans, flags,
9f6bbf7c 3371 ctrl, vlan_id);
6c707945 3372 if (ctrl->bridge)
c4f20321 3373 return rocker_port_ctrl_vlan_bridge(rocker_port, trans, flags,
6c707945 3374 ctrl, vlan_id);
9f6bbf7c
SF		 3375
3376 if (ctrl->term)
c4f20321 3377 return rocker_port_ctrl_vlan_term(rocker_port, trans, flags,
9f6bbf7c
SF		 3378 ctrl, vlan_id);
3379
3380 return -EOPNOTSUPP;
3381}
3382
3383static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port,
c4f20321
SF		 3384 enum switchdev_trans trans, int flags,
3385 __be16 vlan_id)
9f6bbf7c
SF		 3386{
3387 int err = 0;
3388 int i;
3389
3390 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3391 if (rocker_port->ctrls[i]) {
c4f20321 3392 err = rocker_port_ctrl_vlan(rocker_port, trans, flags,
9f6bbf7c
SF		 3393 &rocker_ctrls[i], vlan_id);
3394 if (err)
3395 return err;
3396 }
3397 }
3398
3399 return err;
3400}
3401
c4f20321
SF		 3402static int rocker_port_ctrl(struct rocker_port *rocker_port,
3403 enum switchdev_trans trans, int flags,
e5054643 3404 const struct rocker_ctrl *ctrl)
9f6bbf7c
SF		 3405{
3406 u16 vid;
3407 int err = 0;
3408
3409 for (vid = 1; vid < VLAN_N_VID; vid++) {
3410 if (!test_bit(vid, rocker_port->vlan_bitmap))
3411 continue;
c4f20321 3412 err = rocker_port_ctrl_vlan(rocker_port, trans, flags,
9f6bbf7c
SF		 3413 ctrl, htons(vid));
3414 if (err)
3415 break;
3416 }
3417
3418 return err;
3419}
3420
c4f20321
SF		 3421static int rocker_port_vlan(struct rocker_port *rocker_port,
3422 enum switchdev_trans trans, int flags, u16 vid)
6c707945
SF		 3423{
3424 enum rocker_of_dpa_table_id goto_tbl =
3425 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
4a6bb6d3 3426 u32 in_pport = rocker_port->pport;
6c707945
SF		 3427 __be16 vlan_id = htons(vid);
3428 __be16 vlan_id_mask = htons(0xffff);
3429 __be16 internal_vlan_id;
3430 bool untagged;
3431 bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
3432 int err;
3433
3434 internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged);
3435
9228ad26
SF		 3436 if (adding && test_bit(ntohs(internal_vlan_id),
3437 rocker_port->vlan_bitmap))
6c707945 3438 return 0; /* already added */
9228ad26
SF		 3439 else if (!adding && !test_bit(ntohs(internal_vlan_id),
3440 rocker_port->vlan_bitmap))
6c707945
SF		 3441 return 0; /* already removed */
3442
9228ad26
SF		 3443 change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap);
3444
6c707945 3445 if (adding) {
c4f20321 3446 err = rocker_port_ctrl_vlan_add(rocker_port, trans, flags,
6c707945
SF		 3447 internal_vlan_id);
3448 if (err) {
3449 netdev_err(rocker_port->dev,
3450 "Error (%d) port ctrl vlan add\n", err);
9228ad26 3451 goto err_out;
6c707945
SF		 3452 }
3453 }
3454
c4f20321 3455 err = rocker_port_vlan_l2_groups(rocker_port, trans, flags,
6c707945
SF		 3456 internal_vlan_id, untagged);
3457 if (err) {
3458 netdev_err(rocker_port->dev,
3459 "Error (%d) port VLAN l2 groups\n", err);
9228ad26 3460 goto err_out;
6c707945
SF		 3461 }
3462
c4f20321 3463 err = rocker_port_vlan_flood_group(rocker_port, trans, flags,
6c707945
SF		 3464 internal_vlan_id);
3465 if (err) {
3466 netdev_err(rocker_port->dev,
3467 "Error (%d) port VLAN l2 flood group\n", err);
9228ad26 3468 goto err_out;
6c707945
SF		 3469 }
3470
c4f20321 3471 err = rocker_flow_tbl_vlan(rocker_port, trans, flags,
4a6bb6d3 3472 in_pport, vlan_id, vlan_id_mask,
6c707945
SF		 3473 goto_tbl, untagged, internal_vlan_id);
3474 if (err)
3475 netdev_err(rocker_port->dev,
3476 "Error (%d) port VLAN table\n", err);
3477
9228ad26
SF		 3478err_out:
3479 if (trans == SWITCHDEV_TRANS_PREPARE)
3480 change_bit(ntohs(internal_vlan_id), rocker_port->vlan_bitmap);
3481
6c707945
SF		 3482 return err;
3483}
3484
c4f20321
SF		 3485static int rocker_port_ig_tbl(struct rocker_port *rocker_port,
3486 enum switchdev_trans trans, int flags)
9f6bbf7c
SF		 3487{
3488 enum rocker_of_dpa_table_id goto_tbl;
4a6bb6d3
SF		 3489 u32 in_pport;
3490 u32 in_pport_mask;
9f6bbf7c
SF		 3491 int err;
3492
3493 /* Normal Ethernet Frames. Matches pkts from any local physical
3494 * ports. Goto VLAN tbl.
3495 */
3496
4a6bb6d3
SF		 3497 in_pport = 0;
3498 in_pport_mask = 0xffff0000;
9f6bbf7c
SF		 3499 goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
3500
c4f20321 3501 err = rocker_flow_tbl_ig_port(rocker_port, trans, flags,
4a6bb6d3 3502 in_pport, in_pport_mask,
9f6bbf7c
SF		 3503 goto_tbl);
3504 if (err)
3505 netdev_err(rocker_port->dev,
3506 "Error (%d) ingress port table entry\n", err);
3507
3508 return err;
3509}
3510
6c707945
SF		 3511struct rocker_fdb_learn_work {
3512 struct work_struct work;
c4f20321
SF		 3513 struct rocker_port *rocker_port;
3514 enum switchdev_trans trans;
6c707945
SF		 3515 int flags;
3516 u8 addr[ETH_ALEN];
3517 u16 vid;
3518};
3519
3520static void rocker_port_fdb_learn_work(struct work_struct *work)
3521{
e5054643 3522 const struct rocker_fdb_learn_work *lw =
6c707945
SF		 3523 container_of(work, struct rocker_fdb_learn_work, work);
3524 bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE);
3525 bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED);
ebb9a03a 3526 struct switchdev_notifier_fdb_info info;
3aeb6617
JP		 3527
3528 info.addr = lw->addr;
3529 info.vid = lw->vid;
6c707945 3530
51ace887 3531 if (learned && removing)
ebb9a03a 3532 call_switchdev_notifiers(SWITCHDEV_FDB_DEL,
c4f20321 3533 lw->rocker_port->dev, &info.info);
51ace887 3534 else if (learned && !removing)
ebb9a03a 3535 call_switchdev_notifiers(SWITCHDEV_FDB_ADD,
c4f20321 3536 lw->rocker_port->dev, &info.info);
6c707945 3537
0985df73 3538 rocker_port_kfree(lw->trans, work);
6c707945
SF		 3539}
3540
3541static int rocker_port_fdb_learn(struct rocker_port *rocker_port,
c4f20321
SF		 3542 enum switchdev_trans trans, int flags,
3543 const u8 *addr, __be16 vlan_id)
6c707945
SF		 3544{
3545 struct rocker_fdb_learn_work *lw;
3546 enum rocker_of_dpa_table_id goto_tbl =
3547 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
4a6bb6d3 3548 u32 out_pport = rocker_port->pport;
6c707945
SF		 3549 u32 tunnel_id = 0;
3550 u32 group_id = ROCKER_GROUP_NONE;
5111f80c 3551 bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC);
6c707945
SF		 3552 bool copy_to_cpu = false;
3553 int err;
3554
3555 if (rocker_port_is_bridged(rocker_port))
4a6bb6d3 3556 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
6c707945
SF		 3557
3558 if (!(flags & ROCKER_OP_FLAG_REFRESH)) {
c4f20321
SF		 3559 err = rocker_flow_tbl_bridge(rocker_port, trans, flags, addr,
3560 NULL, vlan_id, tunnel_id, goto_tbl,
6c707945
SF		 3561 group_id, copy_to_cpu);
3562 if (err)
3563 return err;
3564 }
3565
5111f80c
SF		 3566 if (!syncing)
3567 return 0;
3568
6c707945
SF		 3569 if (!rocker_port_is_bridged(rocker_port))
3570 return 0;
3571
c4f20321 3572 lw = rocker_port_kzalloc(rocker_port, trans, sizeof(*lw));
6c707945
SF		 3573 if (!lw)
3574 return -ENOMEM;
3575
3576 INIT_WORK(&lw->work, rocker_port_fdb_learn_work);
3577
c4f20321
SF		 3578 lw->rocker_port = rocker_port;
3579 lw->trans = trans;
6c707945
SF		 3580 lw->flags = flags;
3581 ether_addr_copy(lw->addr, addr);
3582 lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id);
3583
c4f20321 3584 if (trans == SWITCHDEV_TRANS_PREPARE)
0985df73 3585 rocker_port_kfree(trans, lw);
c4f20321
SF		 3586 else
3587 schedule_work(&lw->work);
6c707945
SF		 3588
3589 return 0;
3590}
3591
3592static struct rocker_fdb_tbl_entry *
e5054643
SH		 3593rocker_fdb_tbl_find(const struct rocker *rocker,
3594 const struct rocker_fdb_tbl_entry *match)
6c707945
SF		 3595{
3596 struct rocker_fdb_tbl_entry *found;
3597
3598 hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32)
3599 if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
3600 return found;
3601
3602 return NULL;
3603}
3604
3605static int rocker_port_fdb(struct rocker_port *rocker_port,
c4f20321 3606 enum switchdev_trans trans,
6c707945
SF		 3607 const unsigned char *addr,
3608 __be16 vlan_id, int flags)
3609{
3610 struct rocker *rocker = rocker_port->rocker;
3611 struct rocker_fdb_tbl_entry *fdb;
3612 struct rocker_fdb_tbl_entry *found;
3613 bool removing = (flags & ROCKER_OP_FLAG_REMOVE);
3614 unsigned long lock_flags;
3615
c4f20321 3616 fdb = rocker_port_kzalloc(rocker_port, trans, sizeof(*fdb));
6c707945
SF		 3617 if (!fdb)
3618 return -ENOMEM;
3619
3620 fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED);
4a6bb6d3 3621 fdb->key.pport = rocker_port->pport;
6c707945
SF		 3622 ether_addr_copy(fdb->key.addr, addr);
3623 fdb->key.vlan_id = vlan_id;
3624 fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key));
3625
3626 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
3627
3628 found = rocker_fdb_tbl_find(rocker, fdb);
3629
3630 if (removing && found) {
0985df73 3631 rocker_port_kfree(trans, fdb);
42e94889
SH		 3632 if (trans != SWITCHDEV_TRANS_PREPARE)
3633 hash_del(&found->entry);
6c707945 3634 } else if (!removing && !found) {
42e94889
SH		 3635 if (trans != SWITCHDEV_TRANS_PREPARE)
3636 hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32);
6c707945
SF		 3637 }
3638
3639 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
3640
3641 /* Check if adding and already exists, or removing and can't find */
3642 if (!found != !removing) {
0985df73 3643 rocker_port_kfree(trans, fdb);
6c707945
SF		 3644 if (!found && removing)
3645 return 0;
3646 /* Refreshing existing to update aging timers */
3647 flags |= ROCKER_OP_FLAG_REFRESH;
3648 }
3649
c4f20321 3650 return rocker_port_fdb_learn(rocker_port, trans, flags, addr, vlan_id);
6c707945
SF		 3651}
3652
c4f20321
SF		 3653static int rocker_port_fdb_flush(struct rocker_port *rocker_port,
3654 enum switchdev_trans trans)
6c707945
SF		 3655{
3656 struct rocker *rocker = rocker_port->rocker;
3657 struct rocker_fdb_tbl_entry *found;
3658 unsigned long lock_flags;
c4f20321 3659 int flags = ROCKER_OP_FLAG_REMOVE;
6c707945
SF		 3660 struct hlist_node *tmp;
3661 int bkt;
3662 int err = 0;
3663
3664 if (rocker_port->stp_state == BR_STATE_LEARNING ||
3665 rocker_port->stp_state == BR_STATE_FORWARDING)
3666 return 0;
3667
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
SF		 3723static int rocker_port_fwding(struct rocker_port *rocker_port,
3724 enum switchdev_trans trans)
6c707945
SF		 3725{
3726 bool pop_vlan;
4a6bb6d3 3727 u32 out_pport;
6c707945
SF		 3728 __be16 vlan_id;
3729 u16 vid;
c4f20321 3730 int flags = 0;
6c707945
SF		 3731 int err;
3732
3733 /* Port will be forwarding-enabled if its STP state is LEARNING
3734 * or FORWARDING. Traffic from CPU can still egress, regardless of
3735 * port STP state. Use L2 interface group on port VLANs as a way
3736 * to toggle port forwarding: if forwarding is disabled, L2
3737 * interface group will not exist.
3738 */
3739
3740 if (rocker_port->stp_state != BR_STATE_LEARNING &&
3741 rocker_port->stp_state != BR_STATE_FORWARDING)
3742 flags |= ROCKER_OP_FLAG_REMOVE;
3743
4a6bb6d3 3744 out_pport = rocker_port->pport;
6c707945
SF		 3745 for (vid = 1; vid < VLAN_N_VID; vid++) {
3746 if (!test_bit(vid, rocker_port->vlan_bitmap))
3747 continue;
3748 vlan_id = htons(vid);
3749 pop_vlan = rocker_vlan_id_is_internal(vlan_id);
c4f20321
SF		 3750 err = rocker_group_l2_interface(rocker_port, trans, flags,
3751 vlan_id, out_pport, pop_vlan);
6c707945
SF		 3752 if (err) {
3753 netdev_err(rocker_port->dev,
4a6bb6d3
SF		 3754 "Error (%d) port VLAN l2 group for pport %d\n",
3755 err, out_pport);
6c707945
SF		 3756 return err;
3757 }
3758 }
3759
3760 return 0;
3761}
3762
c4f20321
SF		 3763static int rocker_port_stp_update(struct rocker_port *rocker_port,
3764 enum switchdev_trans trans, 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 flags;
3770 int err;
3771 int i;
3772
c4f20321
SF		 3773 if (trans == SWITCHDEV_TRANS_PREPARE) {
3774 memcpy(prev_ctrls, rocker_port->ctrls, sizeof(prev_ctrls));
3775 prev_state = rocker_port->stp_state;
3776 }
3777
6c707945
SF		 3778 if (rocker_port->stp_state == state)
3779 return 0;
3780
3781 rocker_port->stp_state = state;
3782
3783 switch (state) {
3784 case BR_STATE_DISABLED:
3785 /* port is completely disabled */
3786 break;
3787 case BR_STATE_LISTENING:
3788 case BR_STATE_BLOCKING:
3789 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3790 break;
3791 case BR_STATE_LEARNING:
3792 case BR_STATE_FORWARDING:
3793 want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
3794 want[ROCKER_CTRL_IPV4_MCAST] = true;
3795 want[ROCKER_CTRL_IPV6_MCAST] = true;
3796 if (rocker_port_is_bridged(rocker_port))
3797 want[ROCKER_CTRL_DFLT_BRIDGING] = true;
3798 else
3799 want[ROCKER_CTRL_LOCAL_ARP] = true;
3800 break;
3801 }
3802
3803 for (i = 0; i < ROCKER_CTRL_MAX; i++) {
3804 if (want[i] != rocker_port->ctrls[i]) {
c4f20321
SF		 3805 flags = (want[i] ? 0 : ROCKER_OP_FLAG_REMOVE);
3806 err = rocker_port_ctrl(rocker_port, trans, 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
c4f20321 3814 err = rocker_port_fdb_flush(rocker_port, trans);
6c707945 3815 if (err)
c4f20321 3816 goto err_out;
6c707945 3817
c4f20321
SF		 3818 err = rocker_port_fwding(rocker_port, trans);
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
SF		 3829static int rocker_port_fwd_enable(struct rocker_port *rocker_port,
3830 enum switchdev_trans trans)
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 */
c4f20321 3837 return rocker_port_stp_update(rocker_port, trans, BR_STATE_FORWARDING);
e47172ab
SF		 3838}
3839
c4f20321
SF		 3840static int rocker_port_fwd_disable(struct rocker_port *rocker_port,
3841 enum switchdev_trans trans)
e47172ab
SF		 3842{
3843 if (rocker_port_is_bridged(rocker_port))
3844 /* bridge STP will disable port */
3845 return 0;
3846
3847 /* port is not bridged, so simulate going to DISABLED state */
c4f20321 3848 return rocker_port_stp_update(rocker_port, trans, BR_STATE_DISABLED);
e47172ab
SF		 3849}
3850
9f6bbf7c 3851static struct rocker_internal_vlan_tbl_entry *
e5054643 3852rocker_internal_vlan_tbl_find(const struct rocker *rocker, int ifindex)
9f6bbf7c
SF		 3853{
3854 struct rocker_internal_vlan_tbl_entry *found;
3855
3856 hash_for_each_possible(rocker->internal_vlan_tbl, found,
3857 entry, ifindex) {
3858 if (found->ifindex == ifindex)
3859 return found;
3860 }
3861
3862 return NULL;
3863}
3864
3865static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port,
3866 int ifindex)
3867{
3868 struct rocker *rocker = rocker_port->rocker;
3869 struct rocker_internal_vlan_tbl_entry *entry;
3870 struct rocker_internal_vlan_tbl_entry *found;
3871 unsigned long lock_flags;
3872 int i;
3873
df6a2067 3874 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
9f6bbf7c
SF		 3875 if (!entry)
3876 return 0;
3877
3878 entry->ifindex = ifindex;
3879
3880 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3881
3882 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3883 if (found) {
df6a2067 3884 kfree(entry);
9f6bbf7c
SF		 3885 goto found;
3886 }
3887
3888 found = entry;
3889 hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex);
3890
3891 for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) {
3892 if (test_and_set_bit(i, rocker->internal_vlan_bitmap))
3893 continue;
3894 found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i);
3895 goto found;
3896 }
3897
3898 netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n");
3899
3900found:
3901 found->ref_count++;
3902 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3903
3904 return found->vlan_id;
3905}
3906
e5054643
SH		 3907static void
3908rocker_port_internal_vlan_id_put(const struct rocker_port *rocker_port,
3909 int ifindex)
9f6bbf7c
SF		 3910{
3911 struct rocker *rocker = rocker_port->rocker;
3912 struct rocker_internal_vlan_tbl_entry *found;
3913 unsigned long lock_flags;
3914 unsigned long bit;
3915
3916 spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
3917
3918 found = rocker_internal_vlan_tbl_find(rocker, ifindex);
3919 if (!found) {
3920 netdev_err(rocker_port->dev,
3921 "ifindex (%d) not found in internal VLAN tbl\n",
3922 ifindex);
3923 goto not_found;
3924 }
3925
3926 if (--found->ref_count <= 0) {
3927 bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE;
3928 clear_bit(bit, rocker->internal_vlan_bitmap);
3929 hash_del(&found->entry);
df6a2067 3930 kfree(found);
9f6bbf7c
SF		 3931 }
3932
3933not_found:
3934 spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
3935}
3936
c4f20321
SF		 3937static int rocker_port_fib_ipv4(struct rocker_port *rocker_port,
3938 enum switchdev_trans trans, __be32 dst,
e5054643
SH		 3939 int dst_len, const struct fib_info *fi,
3940 u32 tb_id, int flags)
c1beeef7 3941{
e5054643 3942 const struct fib_nh *nh;
c1beeef7
SF		 3943 __be16 eth_type = htons(ETH_P_IP);
3944 __be32 dst_mask = inet_make_mask(dst_len);
3945 __be16 internal_vlan_id = rocker_port->internal_vlan_id;
3946 u32 priority = fi->fib_priority;
3947 enum rocker_of_dpa_table_id goto_tbl =
3948 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
3949 u32 group_id;
3950 bool nh_on_port;
3951 bool has_gw;
3952 u32 index;
3953 int err;
3954
3955 /* XXX support ECMP */
3956
3957 nh = fi->fib_nh;
3958 nh_on_port = (fi->fib_dev == rocker_port->dev);
3959 has_gw = !!nh->nh_gw;
3960
3961 if (has_gw && nh_on_port) {
c4f20321 3962 err = rocker_port_ipv4_nh(rocker_port, trans, flags,
c1beeef7
SF		 3963 nh->nh_gw, &index);
3964 if (err)
3965 return err;
3966
3967 group_id = ROCKER_GROUP_L3_UNICAST(index);
3968 } else {
3969 /* Send to CPU for processing */
3970 group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0);
3971 }
3972
c4f20321 3973 err = rocker_flow_tbl_ucast4_routing(rocker_port, trans, eth_type, dst,
c1beeef7
SF		 3974 dst_mask, priority, goto_tbl,
3975 group_id, flags);
3976 if (err)
3977 netdev_err(rocker_port->dev, "Error (%d) IPv4 route %pI4\n",
3978 err, &dst);
3979
3980 return err;
3981}
3982
4b8ac966
JP		 3983/*****************
3984 * Net device ops
3985 *****************/
3986
3987static int rocker_port_open(struct net_device *dev)
3988{
3989 struct rocker_port *rocker_port = netdev_priv(dev);
3990 int err;
3991
3992 err = rocker_port_dma_rings_init(rocker_port);
3993 if (err)
3994 return err;
3995
3996 err = request_irq(rocker_msix_tx_vector(rocker_port),
3997 rocker_tx_irq_handler, 0,
3998 rocker_driver_name, rocker_port);
3999 if (err) {
4000 netdev_err(rocker_port->dev, "cannot assign tx irq\n");
4001 goto err_request_tx_irq;
4002 }
4003
4004 err = request_irq(rocker_msix_rx_vector(rocker_port),
4005 rocker_rx_irq_handler, 0,
4006 rocker_driver_name, rocker_port);
4007 if (err) {
4008 netdev_err(rocker_port->dev, "cannot assign rx irq\n");
4009 goto err_request_rx_irq;
4010 }
4011
c4f20321 4012 err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE);
6c707945 4013 if (err)
e47172ab 4014 goto err_fwd_enable;
6c707945 4015
4b8ac966
JP		 4016 napi_enable(&rocker_port->napi_tx);
4017 napi_enable(&rocker_port->napi_rx);
4018 rocker_port_set_enable(rocker_port, true);
4019 netif_start_queue(dev);
4020 return 0;
4021
e47172ab 4022err_fwd_enable:
6c707945 4023 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
4b8ac966
JP		 4024err_request_rx_irq:
4025 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
4026err_request_tx_irq:
4027 rocker_port_dma_rings_fini(rocker_port);
4028 return err;
4029}
4030
4031static int rocker_port_stop(struct net_device *dev)
4032{
4033 struct rocker_port *rocker_port = netdev_priv(dev);
4034
4035 netif_stop_queue(dev);
4036 rocker_port_set_enable(rocker_port, false);
4037 napi_disable(&rocker_port->napi_rx);
4038 napi_disable(&rocker_port->napi_tx);
c4f20321 4039 rocker_port_fwd_disable(rocker_port, SWITCHDEV_TRANS_NONE);
4b8ac966
JP		 4040 free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
4041 free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
4042 rocker_port_dma_rings_fini(rocker_port);
4043
4044 return 0;
4045}
4046
e5054643
SH		 4047static void rocker_tx_desc_frags_unmap(const struct rocker_port *rocker_port,
4048 const struct rocker_desc_info *desc_info)
4b8ac966 4049{
e5054643 4050 const struct rocker *rocker = rocker_port->rocker;
4b8ac966 4051 struct pci_dev *pdev = rocker->pdev;
e5054643 4052 const struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1];
4b8ac966
JP		 4053 struct rocker_tlv *attr;
4054 int rem;
4055
4056 rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info);
4057 if (!attrs[ROCKER_TLV_TX_FRAGS])
4058 return;
4059 rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) {
e5054643 4060 const struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1];
4b8ac966
JP		 4061 dma_addr_t dma_handle;
4062 size_t len;
4063
4064 if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG)
4065 continue;
4066 rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX,
4067 attr);
4068 if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] ||
4069 !frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN])
4070 continue;
4071 dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]);
4072 len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]);
4073 pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE);
4074 }
4075}
4076
e5054643 4077static int rocker_tx_desc_frag_map_put(const struct rocker_port *rocker_port,
4b8ac966
JP		 4078 struct rocker_desc_info *desc_info,
4079 char *buf, size_t buf_len)
4080{
e5054643 4081 const struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 4082 struct pci_dev *pdev = rocker->pdev;
4083 dma_addr_t dma_handle;
4084 struct rocker_tlv *frag;
4085
4086 dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE);
4087 if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) {
4088 if (net_ratelimit())
4089 netdev_err(rocker_port->dev, "failed to dma map tx frag\n");
4090 return -EIO;
4091 }
4092 frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG);
4093 if (!frag)
4094 goto unmap_frag;
4095 if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR,
4096 dma_handle))
4097 goto nest_cancel;
4098 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN,
4099 buf_len))
4100 goto nest_cancel;
4101 rocker_tlv_nest_end(desc_info, frag);
4102 return 0;
4103
4104nest_cancel:
4105 rocker_tlv_nest_cancel(desc_info, frag);
4106unmap_frag:
4107 pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE);
4108 return -EMSGSIZE;
4109}
4110
4111static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev)
4112{
4113 struct rocker_port *rocker_port = netdev_priv(dev);
4114 struct rocker *rocker = rocker_port->rocker;
4115 struct rocker_desc_info *desc_info;
4116 struct rocker_tlv *frags;
4117 int i;
4118 int err;
4119
4120 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
4121 if (unlikely(!desc_info)) {
4122 if (net_ratelimit())
4123 netdev_err(dev, "tx ring full when queue awake\n");
4124 return NETDEV_TX_BUSY;
4125 }
4126
4127 rocker_desc_cookie_ptr_set(desc_info, skb);
4128
4129 frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS);
4130 if (!frags)
4131 goto out;
4132 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
4133 skb->data, skb_headlen(skb));
4134 if (err)
4135 goto nest_cancel;
4136 if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX)
4137 goto nest_cancel;
4138
4139 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4140 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
4141
4142 err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
4143 skb_frag_address(frag),
4144 skb_frag_size(frag));
4145 if (err)
4146 goto unmap_frags;
4147 }
4148 rocker_tlv_nest_end(desc_info, frags);
4149
4150 rocker_desc_gen_clear(desc_info);
4151 rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info);
4152
4153 desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
4154 if (!desc_info)
4155 netif_stop_queue(dev);
4156
4157 return NETDEV_TX_OK;
4158
4159unmap_frags:
4160 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
4161nest_cancel:
4162 rocker_tlv_nest_cancel(desc_info, frags);
4163out:
4164 dev_kfree_skb(skb);
f2bbca51
DA		 4165 dev->stats.tx_dropped++;
4166
4b8ac966
JP		 4167 return NETDEV_TX_OK;
4168}
4169
4170static int rocker_port_set_mac_address(struct net_device *dev, void *p)
4171{
4172 struct sockaddr *addr = p;
4173 struct rocker_port *rocker_port = netdev_priv(dev);
4174 int err;
4175
4176 if (!is_valid_ether_addr(addr->sa_data))
4177 return -EADDRNOTAVAIL;
4178
4179 err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data);
4180 if (err)
4181 return err;
4182 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
4183 return 0;
4184}
4185
6c707945
SF		 4186static int rocker_port_vlan_rx_add_vid(struct net_device *dev,
4187 __be16 proto, u16 vid)
4188{
4189 struct rocker_port *rocker_port = netdev_priv(dev);
4190 int err;
4191
c4f20321 4192 err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, 0, vid);
6c707945
SF		 4193 if (err)
4194 return err;
4195
c4f20321
SF		 4196 return rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE,
4197 0, htons(vid));
6c707945
SF		 4198}
4199
4200static int rocker_port_vlan_rx_kill_vid(struct net_device *dev,
4201 __be16 proto, u16 vid)
4202{
4203 struct rocker_port *rocker_port = netdev_priv(dev);
4204 int err;
4205
c4f20321
SF		 4206 err = rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE,
4207 ROCKER_OP_FLAG_REMOVE, htons(vid));
6c707945
SF		 4208 if (err)
4209 return err;
4210
c4f20321
SF		 4211 return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
4212 ROCKER_OP_FLAG_REMOVE, vid);
6c707945
SF		 4213}
4214
db19170b
DA		 4215static int rocker_port_get_phys_port_name(struct net_device *dev,
4216 char *buf, size_t len)
4217{
4218 struct rocker_port *rocker_port = netdev_priv(dev);
4219 struct port_name name = { .buf = buf, .len = len };
4220 int err;
4221
4222 err = rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 4223 SWITCHDEV_TRANS_NONE,
db19170b
DA		 4224 rocker_cmd_get_port_settings_prep, NULL,
4225 rocker_cmd_get_port_settings_phys_name_proc,
c4f20321 4226 &name);
db19170b
DA		 4227
4228 return err ? -EOPNOTSUPP : 0;
4229}
4230
98237d43
SF		 4231static const struct net_device_ops rocker_port_netdev_ops = {
4232 .ndo_open = rocker_port_open,
4233 .ndo_stop = rocker_port_stop,
4234 .ndo_start_xmit = rocker_port_xmit,
4235 .ndo_set_mac_address = rocker_port_set_mac_address,
4236 .ndo_vlan_rx_add_vid = rocker_port_vlan_rx_add_vid,
4237 .ndo_vlan_rx_kill_vid = rocker_port_vlan_rx_kill_vid,
85fdb956 4238 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
fc8f40d8 4239 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
54ba5a0b 4240 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
45d4122c
SS		 4241 .ndo_fdb_add = switchdev_port_fdb_add,
4242 .ndo_fdb_del = switchdev_port_fdb_del,
4243 .ndo_fdb_dump = switchdev_port_fdb_dump,
db19170b 4244 .ndo_get_phys_port_name = rocker_port_get_phys_port_name,
98237d43
SF		 4245};
4246
4247/********************
4248 * swdev interface
4249 ********************/
4250
f8e20a9f
SF		 4251static int rocker_port_attr_get(struct net_device *dev,
4252 struct switchdev_attr *attr)
4b8ac966 4253{
e5054643
SH		 4254 const struct rocker_port *rocker_port = netdev_priv(dev);
4255 const struct rocker *rocker = rocker_port->rocker;
4b8ac966 4256
f8e20a9f
SF		 4257 switch (attr->id) {
4258 case SWITCHDEV_ATTR_PORT_PARENT_ID:
42275bd8
SF		 4259 attr->u.ppid.id_len = sizeof(rocker->hw.id);
4260 memcpy(&attr->u.ppid.id, &rocker->hw.id, attr->u.ppid.id_len);
f8e20a9f 4261 break;
6004c867 4262 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
42275bd8 4263 attr->u.brport_flags = rocker_port->brport_flags;
6004c867 4264 break;
f8e20a9f
SF		 4265 default:
4266 return -EOPNOTSUPP;
4267 }
4268
4b8ac966
JP		 4269 return 0;
4270}
4271
e5054643 4272static void rocker_port_trans_abort(const struct rocker_port *rocker_port)
c4f20321
SF		 4273{
4274 struct list_head *mem, *tmp;
4275
4276 list_for_each_safe(mem, tmp, &rocker_port->trans_mem) {
4277 list_del(mem);
4278 kfree(mem);
4279 }
4280}
4281
6004c867
SF		 4282static int rocker_port_brport_flags_set(struct rocker_port *rocker_port,
4283 enum switchdev_trans trans,
4284 unsigned long brport_flags)
4285{
4286 unsigned long orig_flags;
4287 int err = 0;
4288
4289 orig_flags = rocker_port->brport_flags;
4290 rocker_port->brport_flags = brport_flags;
4291 if ((orig_flags ^ rocker_port->brport_flags) & BR_LEARNING)
4292 err = rocker_port_set_learning(rocker_port, trans);
4293
4294 if (trans == SWITCHDEV_TRANS_PREPARE)
4295 rocker_port->brport_flags = orig_flags;
4296
4297 return err;
4298}
4299
c4f20321
SF		 4300static int rocker_port_attr_set(struct net_device *dev,
4301 struct switchdev_attr *attr)
4302{
4303 struct rocker_port *rocker_port = netdev_priv(dev);
4304 int err = 0;
4305
4306 switch (attr->trans) {
4307 case SWITCHDEV_TRANS_PREPARE:
4308 BUG_ON(!list_empty(&rocker_port->trans_mem));
4309 break;
4310 case SWITCHDEV_TRANS_ABORT:
4311 rocker_port_trans_abort(rocker_port);
4312 return 0;
4313 default:
4314 break;
4315 }
4316
4317 switch (attr->id) {
35636062
SF		 4318 case SWITCHDEV_ATTR_PORT_STP_STATE:
4319 err = rocker_port_stp_update(rocker_port, attr->trans,
42275bd8 4320 attr->u.stp_state);
35636062 4321 break;
6004c867
SF		 4322 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS:
4323 err = rocker_port_brport_flags_set(rocker_port, attr->trans,
42275bd8 4324 attr->u.brport_flags);
6004c867 4325 break;
c4f20321
SF		 4326 default:
4327 err = -EOPNOTSUPP;
4328 break;
4329 }
4330
4331 return err;
6c707945
SF		 4332}
4333
9228ad26
SF		 4334static int rocker_port_vlan_add(struct rocker_port *rocker_port,
4335 enum switchdev_trans trans, u16 vid, u16 flags)
4336{
4337 int err;
4338
4339 /* XXX deal with flags for PVID and untagged */
4340
4341 err = rocker_port_vlan(rocker_port, trans, 0, vid);
4342 if (err)
4343 return err;
4344
4345 return rocker_port_router_mac(rocker_port, trans, 0, htons(vid));
4346}
4347
4348static int rocker_port_vlans_add(struct rocker_port *rocker_port,
4349 enum switchdev_trans trans,
e5054643 4350 const struct switchdev_obj_vlan *vlan)
9228ad26
SF		 4351{
4352 u16 vid;
4353 int err;
4354
4355 for (vid = vlan->vid_start; vid <= vlan->vid_end; vid++) {
4356 err = rocker_port_vlan_add(rocker_port, trans,
4357 vid, vlan->flags);
4358 if (err)
4359 return err;
4360 }
4361
4362 return 0;
4363}
4364
45d4122c
SS		 4365static int rocker_port_fdb_add(struct rocker_port *rocker_port,
4366 enum switchdev_trans trans,
e5054643 4367 const struct switchdev_obj_fdb *fdb)
45d4122c
SS		 4368{
4369 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
4370 int flags = 0;
4371
4372 if (!rocker_port_is_bridged(rocker_port))
4373 return -EINVAL;
4374
4375 return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
4376}
4377
9228ad26
SF		 4378static int rocker_port_obj_add(struct net_device *dev,
4379 struct switchdev_obj *obj)
4380{
4381 struct rocker_port *rocker_port = netdev_priv(dev);
e5054643 4382 const struct switchdev_obj_ipv4_fib *fib4;
9228ad26
SF		 4383 int err = 0;
4384
4385 switch (obj->trans) {
4386 case SWITCHDEV_TRANS_PREPARE:
4387 BUG_ON(!list_empty(&rocker_port->trans_mem));
4388 break;
4389 case SWITCHDEV_TRANS_ABORT:
4390 rocker_port_trans_abort(rocker_port);
4391 return 0;
4392 default:
4393 break;
4394 }
4395
4396 switch (obj->id) {
4397 case SWITCHDEV_OBJ_PORT_VLAN:
4398 err = rocker_port_vlans_add(rocker_port, obj->trans,
42275bd8 4399 &obj->u.vlan);
9228ad26 4400 break;
58c2cb16 4401 case SWITCHDEV_OBJ_IPV4_FIB:
42275bd8 4402 fib4 = &obj->u.ipv4_fib;
58c2cb16 4403 err = rocker_port_fib_ipv4(rocker_port, obj->trans,
7a7ee531 4404 htonl(fib4->dst), fib4->dst_len,
58c2cb16
SF		 4405 fib4->fi, fib4->tb_id, 0);
4406 break;
45d4122c
SS		 4407 case SWITCHDEV_OBJ_PORT_FDB:
4408 err = rocker_port_fdb_add(rocker_port, obj->trans, &obj->u.fdb);
4409 break;
9228ad26
SF		 4410 default:
4411 err = -EOPNOTSUPP;
4412 break;
4413 }
4414
4415 return err;
4416}
4417
4418static int rocker_port_vlan_del(struct rocker_port *rocker_port,
4419 u16 vid, u16 flags)
4420{
4421 int err;
4422
4423 err = rocker_port_router_mac(rocker_port, SWITCHDEV_TRANS_NONE,
4424 ROCKER_OP_FLAG_REMOVE, htons(vid));
4425 if (err)
4426 return err;
4427
4428 return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
4429 ROCKER_OP_FLAG_REMOVE, vid);
4430}
4431
4432static int rocker_port_vlans_del(struct rocker_port *rocker_port,
e5054643 4433 const struct switchdev_obj_vlan *vlan)
9228ad26
SF		 4434{
4435 u16 vid;
4436 int err;
4437
4438 for (vid = vlan->vid_start; vid <= vlan->vid_end; vid++) {
4439 err = rocker_port_vlan_del(rocker_port, vid, vlan->flags);
4440 if (err)
4441 return err;
4442 }
4443
4444 return 0;
4445}
4446
45d4122c
SS		 4447static int rocker_port_fdb_del(struct rocker_port *rocker_port,
4448 enum switchdev_trans trans,
e5054643 4449 const struct switchdev_obj_fdb *fdb)
45d4122c
SS		 4450{
4451 __be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, fdb->vid, NULL);
4452 int flags = ROCKER_OP_FLAG_REMOVE;
4453
4454 if (!rocker_port_is_bridged(rocker_port))
4455 return -EINVAL;
4456
4457 return rocker_port_fdb(rocker_port, trans, fdb->addr, vlan_id, flags);
4458}
4459
9228ad26
SF		 4460static int rocker_port_obj_del(struct net_device *dev,
4461 struct switchdev_obj *obj)
4462{
4463 struct rocker_port *rocker_port = netdev_priv(dev);
e5054643 4464 const struct switchdev_obj_ipv4_fib *fib4;
9228ad26
SF		 4465 int err = 0;
4466
4467 switch (obj->id) {
4468 case SWITCHDEV_OBJ_PORT_VLAN:
42275bd8 4469 err = rocker_port_vlans_del(rocker_port, &obj->u.vlan);
9228ad26 4470 break;
58c2cb16 4471 case SWITCHDEV_OBJ_IPV4_FIB:
42275bd8 4472 fib4 = &obj->u.ipv4_fib;
58c2cb16 4473 err = rocker_port_fib_ipv4(rocker_port, SWITCHDEV_TRANS_NONE,
7a7ee531
SF		 4474 htonl(fib4->dst), fib4->dst_len,
4475 fib4->fi, fib4->tb_id,
4476 ROCKER_OP_FLAG_REMOVE);
58c2cb16 4477 break;
45d4122c
SS		 4478 case SWITCHDEV_OBJ_PORT_FDB:
4479 err = rocker_port_fdb_del(rocker_port, obj->trans, &obj->u.fdb);
4480 break;
4481 default:
4482 err = -EOPNOTSUPP;
4483 break;
4484 }
4485
4486 return err;
4487}
4488
e5054643 4489static int rocker_port_fdb_dump(const struct rocker_port *rocker_port,
45d4122c
SS		 4490 struct switchdev_obj *obj)
4491{
4492 struct rocker *rocker = rocker_port->rocker;
4493 struct switchdev_obj_fdb *fdb = &obj->u.fdb;
4494 struct rocker_fdb_tbl_entry *found;
4495 struct hlist_node *tmp;
4496 unsigned long lock_flags;
4497 int bkt;
4498 int err = 0;
4499
4500 spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
4501 hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
4502 if (found->key.pport != rocker_port->pport)
4503 continue;
4504 fdb->addr = found->key.addr;
4505 fdb->vid = rocker_port_vlan_to_vid(rocker_port,
4506 found->key.vlan_id);
4507 err = obj->cb(rocker_port->dev, obj);
4508 if (err)
4509 break;
4510 }
4511 spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
4512
4513 return err;
4514}
4515
4516static int rocker_port_obj_dump(struct net_device *dev,
4517 struct switchdev_obj *obj)
4518{
e5054643 4519 const struct rocker_port *rocker_port = netdev_priv(dev);
45d4122c
SS		 4520 int err = 0;
4521
4522 switch (obj->id) {
4523 case SWITCHDEV_OBJ_PORT_FDB:
4524 err = rocker_port_fdb_dump(rocker_port, obj);
4525 break;
9228ad26
SF		 4526 default:
4527 err = -EOPNOTSUPP;
4528 break;
4529 }
4530
4531 return err;
4532}
4533
9d47c0a2 4534static const struct switchdev_ops rocker_port_switchdev_ops = {
f8e20a9f 4535 .switchdev_port_attr_get = rocker_port_attr_get,
35636062 4536 .switchdev_port_attr_set = rocker_port_attr_set,
9228ad26
SF		 4537 .switchdev_port_obj_add = rocker_port_obj_add,
4538 .switchdev_port_obj_del = rocker_port_obj_del,
45d4122c 4539 .switchdev_port_obj_dump = rocker_port_obj_dump,
4b8ac966
JP		 4540};
4541
4542/********************
4543 * ethtool interface
4544 ********************/
4545
4546static int rocker_port_get_settings(struct net_device *dev,
4547 struct ethtool_cmd *ecmd)
4548{
4549 struct rocker_port *rocker_port = netdev_priv(dev);
4550
4551 return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd);
4552}
4553
4554static int rocker_port_set_settings(struct net_device *dev,
4555 struct ethtool_cmd *ecmd)
4556{
4557 struct rocker_port *rocker_port = netdev_priv(dev);
4558
4559 return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd);
4560}
4561
4562static void rocker_port_get_drvinfo(struct net_device *dev,
4563 struct ethtool_drvinfo *drvinfo)
4564{
4565 strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver));
4566 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
4567}
4568
9766e97a
DA		 4569static struct rocker_port_stats {
4570 char str[ETH_GSTRING_LEN];
4571 int type;
4572} rocker_port_stats[] = {
4573 { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, },
4574 { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, },
4575 { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, },
4576 { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, },
4577
4578 { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, },
4579 { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, },
4580 { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, },
4581 { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, },
4582};
4583
4584#define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats)
4585
4586static void rocker_port_get_strings(struct net_device *netdev, u32 stringset,
4587 u8 *data)
4588{
4589 u8 *p = data;
4590 int i;
4591
4592 switch (stringset) {
4593 case ETH_SS_STATS:
4594 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4595 memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN);
4596 p += ETH_GSTRING_LEN;
4597 }
4598 break;
4599 }
4600}
4601
4602static int
e5054643
SH		 4603rocker_cmd_get_port_stats_prep(const struct rocker *rocker,
4604 const struct rocker_port *rocker_port,
9766e97a
DA		 4605 struct rocker_desc_info *desc_info,
4606 void *priv)
4607{
4608 struct rocker_tlv *cmd_stats;
4609
4610 if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
4611 ROCKER_TLV_CMD_TYPE_GET_PORT_STATS))
4612 return -EMSGSIZE;
4613
4614 cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
4615 if (!cmd_stats)
4616 return -EMSGSIZE;
4617
4a6bb6d3
SF		 4618 if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT,
4619 rocker_port->pport))
9766e97a
DA		 4620 return -EMSGSIZE;
4621
4622 rocker_tlv_nest_end(desc_info, cmd_stats);
4623
4624 return 0;
4625}
4626
4627static int
e5054643
SH		 4628rocker_cmd_get_port_stats_ethtool_proc(const struct rocker *rocker,
4629 const struct rocker_port *rocker_port,
4630 const struct rocker_desc_info *desc_info,
9766e97a
DA		 4631 void *priv)
4632{
e5054643
SH		 4633 const struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
4634 const struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1];
4635 const struct rocker_tlv *pattr;
4a6bb6d3 4636 u32 pport;
9766e97a
DA		 4637 u64 *data = priv;
4638 int i;
4639
4640 rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
4641
4642 if (!attrs[ROCKER_TLV_CMD_INFO])
4643 return -EIO;
4644
4645 rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX,
4646 attrs[ROCKER_TLV_CMD_INFO]);
4647
4a6bb6d3 4648 if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT])
9766e97a
DA		 4649 return -EIO;
4650
4a6bb6d3
SF		 4651 pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]);
4652 if (pport != rocker_port->pport)
9766e97a
DA		 4653 return -EIO;
4654
4655 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
4656 pattr = stats_attrs[rocker_port_stats[i].type];
4657 if (!pattr)
4658 continue;
4659
4660 data[i] = rocker_tlv_get_u64(pattr);
4661 }
4662
4663 return 0;
4664}
4665
4666static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port,
4667 void *priv)
4668{
4669 return rocker_cmd_exec(rocker_port->rocker, rocker_port,
c4f20321 4670 SWITCHDEV_TRANS_NONE,
9766e97a
DA		 4671 rocker_cmd_get_port_stats_prep, NULL,
4672 rocker_cmd_get_port_stats_ethtool_proc,
c4f20321 4673 priv);
9766e97a
DA		 4674}
4675
4676static void rocker_port_get_stats(struct net_device *dev,
4677 struct ethtool_stats *stats, u64 *data)
4678{
4679 struct rocker_port *rocker_port = netdev_priv(dev);
4680
4681 if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) {
4682 int i;
4683
4684 for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i)
4685 data[i] = 0;
4686 }
9766e97a
DA		 4687}
4688
4689static int rocker_port_get_sset_count(struct net_device *netdev, int sset)
4690{
4691 switch (sset) {
4692 case ETH_SS_STATS:
4693 return ROCKER_PORT_STATS_LEN;
4694 default:
4695 return -EOPNOTSUPP;
4696 }
4697}
4698
4b8ac966
JP		 4699static const struct ethtool_ops rocker_port_ethtool_ops = {
4700 .get_settings = rocker_port_get_settings,
4701 .set_settings = rocker_port_set_settings,
4702 .get_drvinfo = rocker_port_get_drvinfo,
4703 .get_link = ethtool_op_get_link,
9766e97a
DA		 4704 .get_strings = rocker_port_get_strings,
4705 .get_ethtool_stats = rocker_port_get_stats,
4706 .get_sset_count = rocker_port_get_sset_count,
4b8ac966
JP		 4707};
4708
4709/*****************
4710 * NAPI interface
4711 *****************/
4712
4713static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi)
4714{
4715 return container_of(napi, struct rocker_port, napi_tx);
4716}
4717
4718static int rocker_port_poll_tx(struct napi_struct *napi, int budget)
4719{
4720 struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi);
e5054643
SH		 4721 const struct rocker *rocker = rocker_port->rocker;
4722 const struct rocker_desc_info *desc_info;
4b8ac966
JP		 4723 u32 credits = 0;
4724 int err;
4725
4726 /* Cleanup tx descriptors */
4727 while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) {
f2bbca51
DA		 4728 struct sk_buff *skb;
4729
4b8ac966
JP		 4730 err = rocker_desc_err(desc_info);
4731 if (err && net_ratelimit())
4732 netdev_err(rocker_port->dev, "tx desc received with err %d\n",
4733 err);
4734 rocker_tx_desc_frags_unmap(rocker_port, desc_info);
f2bbca51
DA		 4735
4736 skb = rocker_desc_cookie_ptr_get(desc_info);
4737 if (err == 0) {
4738 rocker_port->dev->stats.tx_packets++;
4739 rocker_port->dev->stats.tx_bytes += skb->len;
4725ceb9 4740 } else {
f2bbca51 4741 rocker_port->dev->stats.tx_errors++;
4725ceb9 4742 }
f2bbca51
DA		 4743
4744 dev_kfree_skb_any(skb);
4b8ac966
JP		 4745 credits++;
4746 }
4747
4748 if (credits && netif_queue_stopped(rocker_port->dev))
4749 netif_wake_queue(rocker_port->dev);
4750
4751 napi_complete(napi);
4752 rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits);
4753
4754 return 0;
4755}
4756
e5054643
SH		 4757static int rocker_port_rx_proc(const struct rocker *rocker,
4758 const struct rocker_port *rocker_port,
4b8ac966
JP		 4759 struct rocker_desc_info *desc_info)
4760{
e5054643 4761 const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
4b8ac966
JP		 4762 struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
4763 size_t rx_len;
4764
4765 if (!skb)
4766 return -ENOENT;
4767
4768 rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
4769 if (!attrs[ROCKER_TLV_RX_FRAG_LEN])
4770 return -EINVAL;
4771
4772 rocker_dma_rx_ring_skb_unmap(rocker, attrs);
4773
4774 rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]);
4775 skb_put(skb, rx_len);
4776 skb->protocol = eth_type_trans(skb, rocker_port->dev);
f2bbca51
DA		 4777
4778 rocker_port->dev->stats.rx_packets++;
4779 rocker_port->dev->stats.rx_bytes += skb->len;
4780
4b8ac966
JP		 4781 netif_receive_skb(skb);
4782
4783 return rocker_dma_rx_ring_skb_alloc(rocker, rocker_port, desc_info);
4784}
4785
4786static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi)
4787{
4788 return container_of(napi, struct rocker_port, napi_rx);
4789}
4790
4791static int rocker_port_poll_rx(struct napi_struct *napi, int budget)
4792{
4793 struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi);
e5054643 4794 const struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 4795 struct rocker_desc_info *desc_info;
4796 u32 credits = 0;
4797 int err;
4798
4799 /* Process rx descriptors */
4800 while (credits < budget &&
4801 (desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) {
4802 err = rocker_desc_err(desc_info);
4803 if (err) {
4804 if (net_ratelimit())
4805 netdev_err(rocker_port->dev, "rx desc received with err %d\n",
4806 err);
4807 } else {
4808 err = rocker_port_rx_proc(rocker, rocker_port,
4809 desc_info);
4810 if (err && net_ratelimit())
4811 netdev_err(rocker_port->dev, "rx processing failed with err %d\n",
4812 err);
4813 }
f2bbca51
DA		 4814 if (err)
4815 rocker_port->dev->stats.rx_errors++;
4816
4b8ac966
JP		 4817 rocker_desc_gen_clear(desc_info);
4818 rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info);
4819 credits++;
4820 }
4821
4822 if (credits < budget)
4823 napi_complete(napi);
4824
4825 rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits);
4826
4827 return credits;
4828}
4829
4830/*****************
4831 * PCI driver ops
4832 *****************/
4833
e5054643 4834static void rocker_carrier_init(const struct rocker_port *rocker_port)
4b8ac966 4835{
e5054643 4836 const struct rocker *rocker = rocker_port->rocker;
4b8ac966
JP		 4837 u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS);
4838 bool link_up;
4839
4a6bb6d3 4840 link_up = link_status & (1 << rocker_port->pport);
4b8ac966
JP		 4841 if (link_up)
4842 netif_carrier_on(rocker_port->dev);
4843 else
4844 netif_carrier_off(rocker_port->dev);
4845}
4846
e5054643 4847static void rocker_remove_ports(const struct rocker *rocker)
4b8ac966 4848{
9f6bbf7c 4849 struct rocker_port *rocker_port;
4b8ac966
JP		 4850 int i;
4851
9f6bbf7c
SF		 4852 for (i = 0; i < rocker->port_count; i++) {
4853 rocker_port = rocker->ports[i];
c4f20321
SF		 4854 rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE,
4855 ROCKER_OP_FLAG_REMOVE);
9f6bbf7c
SF		 4856 unregister_netdev(rocker_port->dev);
4857 }
4b8ac966
JP		 4858 kfree(rocker->ports);
4859}
4860
e5054643 4861static void rocker_port_dev_addr_init(const struct rocker *rocker,
4b8ac966
JP		 4862 struct rocker_port *rocker_port)
4863{
e5054643 4864 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 4865 int err;
4866
4867 err = rocker_cmd_get_port_settings_macaddr(rocker_port,
4868 rocker_port->dev->dev_addr);
4869 if (err) {
4870 dev_warn(&pdev->dev, "failed to get mac address, using random\n");
4871 eth_hw_addr_random(rocker_port->dev);
4872 }
4873}
4874
4875static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
4876{
e5054643 4877 const struct pci_dev *pdev = rocker->pdev;
4b8ac966
JP		 4878 struct rocker_port *rocker_port;
4879 struct net_device *dev;
4880 int err;
4881
4882 dev = alloc_etherdev(sizeof(struct rocker_port));
4883 if (!dev)
4884 return -ENOMEM;
4885 rocker_port = netdev_priv(dev);
4886 rocker_port->dev = dev;
4887 rocker_port->rocker = rocker;
4888 rocker_port->port_number = port_number;
4a6bb6d3 4889 rocker_port->pport = port_number + 1;
5111f80c 4890 rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC;
c4f20321 4891 INIT_LIST_HEAD(&rocker_port->trans_mem);
4b8ac966
JP		 4892
4893 rocker_port_dev_addr_init(rocker, rocker_port);
4894 dev->netdev_ops = &rocker_port_netdev_ops;
4895 dev->ethtool_ops = &rocker_port_ethtool_ops;
9d47c0a2 4896 dev->switchdev_ops = &rocker_port_switchdev_ops;
4b8ac966
JP		 4897 netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx,
4898 NAPI_POLL_WEIGHT);
4899 netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx,
4900 NAPI_POLL_WEIGHT);
4901 rocker_carrier_init(rocker_port);
4902
c1beeef7 4903 dev->features |= NETIF_F_NETNS_LOCAL |
7889cbee 4904 NETIF_F_HW_VLAN_CTAG_FILTER;
4b8ac966
JP		 4905
4906 err = register_netdev(dev);
4907 if (err) {
4908 dev_err(&pdev->dev, "register_netdev failed\n");
4909 goto err_register_netdev;
4910 }
4911 rocker->ports[port_number] = rocker_port;
4912
c4f20321 4913 rocker_port_set_learning(rocker_port, SWITCHDEV_TRANS_NONE);
5111f80c 4914
9f6bbf7c 4915 rocker_port->internal_vlan_id =
df6a2067 4916 rocker_port_internal_vlan_id_get(rocker_port, dev->ifindex);
c4f20321 4917 err = rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, 0);
9f6bbf7c
SF		 4918 if (err) {
4919 dev_err(&pdev->dev, "install ig port table failed\n");
4920 goto err_port_ig_tbl;
4921 }
4922
4b8ac966
JP		 4923 return 0;
4924
9f6bbf7c
SF		 4925err_port_ig_tbl:
4926 unregister_netdev(dev);
4b8ac966
JP		 4927err_register_netdev:
4928 free_netdev(dev);
4929 return err;
4930}
4931
4932static int rocker_probe_ports(struct rocker *rocker)
4933{
4934 int i;
4935 size_t alloc_size;
4936 int err;
4937
4938 alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
4939 rocker->ports = kmalloc(alloc_size, GFP_KERNEL);
e65ad3be
DC		 4940 if (!rocker->ports)
4941 return -ENOMEM;
4b8ac966
JP		 4942 for (i = 0; i < rocker->port_count; i++) {
4943 err = rocker_probe_port(rocker, i);
4944 if (err)
4945 goto remove_ports;
4946 }
4947 return 0;
4948
4949remove_ports:
4950 rocker_remove_ports(rocker);
4951 return err;
4952}
4953
4954static int rocker_msix_init(struct rocker *rocker)
4955{
4956 struct pci_dev *pdev = rocker->pdev;
4957 int msix_entries;
4958 int i;
4959 int err;
4960
4961 msix_entries = pci_msix_vec_count(pdev);
4962 if (msix_entries < 0)
4963 return msix_entries;
4964
4965 if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count))
4966 return -EINVAL;
4967
4968 rocker->msix_entries = kmalloc_array(msix_entries,
4969 sizeof(struct msix_entry),
4970 GFP_KERNEL);
4971 if (!rocker->msix_entries)
4972 return -ENOMEM;
4973
4974 for (i = 0; i < msix_entries; i++)
4975 rocker->msix_entries[i].entry = i;
4976
4977 err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries);
4978 if (err < 0)
4979 goto err_enable_msix;
4980
4981 return 0;
4982
4983err_enable_msix:
4984 kfree(rocker->msix_entries);
4985 return err;
4986}
4987
e5054643 4988static void rocker_msix_fini(const struct rocker *rocker)
4b8ac966
JP		 4989{
4990 pci_disable_msix(rocker->pdev);
4991 kfree(rocker->msix_entries);
4992}
4993
4994static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
4995{
4996 struct rocker *rocker;
4997 int err;
4998
4999 rocker = kzalloc(sizeof(*rocker), GFP_KERNEL);
5000 if (!rocker)
5001 return -ENOMEM;
5002
5003 err = pci_enable_device(pdev);
5004 if (err) {
5005 dev_err(&pdev->dev, "pci_enable_device failed\n");
5006 goto err_pci_enable_device;
5007 }
5008
5009 err = pci_request_regions(pdev, rocker_driver_name);
5010 if (err) {
5011 dev_err(&pdev->dev, "pci_request_regions failed\n");
5012 goto err_pci_request_regions;
5013 }
5014
5015 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
5016 if (!err) {
5017 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
5018 if (err) {
5019 dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n");
5020 goto err_pci_set_dma_mask;
5021 }
5022 } else {
5023 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
5024 if (err) {
5025 dev_err(&pdev->dev, "pci_set_dma_mask failed\n");
5026 goto err_pci_set_dma_mask;
5027 }
5028 }
5029
5030 if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) {
5031 dev_err(&pdev->dev, "invalid PCI region size\n");
3122a92e 5032 err = -EINVAL;
4b8ac966
JP		 5033 goto err_pci_resource_len_check;
5034 }
5035
5036 rocker->hw_addr = ioremap(pci_resource_start(pdev, 0),
5037 pci_resource_len(pdev, 0));
5038 if (!rocker->hw_addr) {
5039 dev_err(&pdev->dev, "ioremap failed\n");
5040 err = -EIO;
5041 goto err_ioremap;
5042 }
5043 pci_set_master(pdev);
5044
5045 rocker->pdev = pdev;
5046 pci_set_drvdata(pdev, rocker);
5047
5048 rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT);
5049
5050 err = rocker_msix_init(rocker);
5051 if (err) {
5052 dev_err(&pdev->dev, "MSI-X init failed\n");
5053 goto err_msix_init;
5054 }
5055
5056 err = rocker_basic_hw_test(rocker);
5057 if (err) {
5058 dev_err(&pdev->dev, "basic hw test failed\n");
5059 goto err_basic_hw_test;
5060 }
5061
5062 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
5063
5064 err = rocker_dma_rings_init(rocker);
5065 if (err)
5066 goto err_dma_rings_init;
5067
5068 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD),
5069 rocker_cmd_irq_handler, 0,
5070 rocker_driver_name, rocker);
5071 if (err) {
5072 dev_err(&pdev->dev, "cannot assign cmd irq\n");
5073 goto err_request_cmd_irq;
5074 }
5075
5076 err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT),
5077 rocker_event_irq_handler, 0,
5078 rocker_driver_name, rocker);
5079 if (err) {
5080 dev_err(&pdev->dev, "cannot assign event irq\n");
5081 goto err_request_event_irq;
5082 }
5083
5084 rocker->hw.id = rocker_read64(rocker, SWITCH_ID);
5085
9f6bbf7c
SF		 5086 err = rocker_init_tbls(rocker);
5087 if (err) {
5088 dev_err(&pdev->dev, "cannot init rocker tables\n");
5089 goto err_init_tbls;
5090 }
5091
4b8ac966
JP		 5092 err = rocker_probe_ports(rocker);
5093 if (err) {
5094 dev_err(&pdev->dev, "failed to probe ports\n");
5095 goto err_probe_ports;
5096 }
5097
5098 dev_info(&pdev->dev, "Rocker switch with id %016llx\n", rocker->hw.id);
5099
5100 return 0;
5101
5102err_probe_ports:
9f6bbf7c
SF		 5103 rocker_free_tbls(rocker);
5104err_init_tbls:
4b8ac966
JP		 5105 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
5106err_request_event_irq:
5107 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
5108err_request_cmd_irq:
5109 rocker_dma_rings_fini(rocker);
5110err_dma_rings_init:
5111err_basic_hw_test:
5112 rocker_msix_fini(rocker);
5113err_msix_init:
5114 iounmap(rocker->hw_addr);
5115err_ioremap:
5116err_pci_resource_len_check:
5117err_pci_set_dma_mask:
5118 pci_release_regions(pdev);
5119err_pci_request_regions:
5120 pci_disable_device(pdev);
5121err_pci_enable_device:
5122 kfree(rocker);
5123 return err;
5124}
5125
5126static void rocker_remove(struct pci_dev *pdev)
5127{
5128 struct rocker *rocker = pci_get_drvdata(pdev);
5129
9f6bbf7c 5130 rocker_free_tbls(rocker);
4b8ac966
JP		 5131 rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
5132 rocker_remove_ports(rocker);
5133 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
5134 free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
5135 rocker_dma_rings_fini(rocker);
5136 rocker_msix_fini(rocker);
5137 iounmap(rocker->hw_addr);
5138 pci_release_regions(rocker->pdev);
5139 pci_disable_device(rocker->pdev);
5140 kfree(rocker);
5141}
5142
5143static struct pci_driver rocker_pci_driver = {
5144 .name = rocker_driver_name,
5145 .id_table = rocker_pci_id_table,
5146 .probe = rocker_probe,
5147 .remove = rocker_remove,
5148};
5149
6c707945
SF		 5150/************************************
5151 * Net device notifier event handler
5152 ************************************/
5153
e5054643 5154static bool rocker_port_dev_check(const struct net_device *dev)
6c707945
SF		 5155{
5156 return dev->netdev_ops == &rocker_port_netdev_ops;
5157}
5158
5159static int rocker_port_bridge_join(struct rocker_port *rocker_port,
5160 struct net_device *bridge)
5161{
5162 int err;
5163
df6a2067 5164 rocker_port_internal_vlan_id_put(rocker_port,
6c707945
SF		 5165 rocker_port->dev->ifindex);
5166
5167 rocker_port->bridge_dev = bridge;
5168
5169 /* Use bridge internal VLAN ID for untagged pkts */
c4f20321
SF		 5170 err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
5171 ROCKER_OP_FLAG_REMOVE, 0);
6c707945
SF		 5172 if (err)
5173 return err;
5174 rocker_port->internal_vlan_id =
df6a2067 5175 rocker_port_internal_vlan_id_get(rocker_port, bridge->ifindex);
c4f20321 5176 return rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, 0, 0);
6c707945
SF		 5177}
5178
5179static int rocker_port_bridge_leave(struct rocker_port *rocker_port)
5180{
5181 int err;
5182
df6a2067 5183 rocker_port_internal_vlan_id_put(rocker_port,
6c707945
SF		 5184 rocker_port->bridge_dev->ifindex);
5185
5186 rocker_port->bridge_dev = NULL;
5187
5188 /* Use port internal VLAN ID for untagged pkts */
c4f20321
SF		 5189 err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE,
5190 ROCKER_OP_FLAG_REMOVE, 0);
6c707945
SF		 5191 if (err)
5192 return err;
5193 rocker_port->internal_vlan_id =
5194 rocker_port_internal_vlan_id_get(rocker_port,
5195 rocker_port->dev->ifindex);
c4f20321 5196 err = rocker_port_vlan(rocker_port, SWITCHDEV_TRANS_NONE, 0, 0);
e47172ab
SF		 5197 if (err)
5198 return err;
5199
5200 if (rocker_port->dev->flags & IFF_UP)
c4f20321 5201 err = rocker_port_fwd_enable(rocker_port, SWITCHDEV_TRANS_NONE);
6c707945
SF		 5202
5203 return err;
5204}
5205
5206static int rocker_port_master_changed(struct net_device *dev)
5207{
5208 struct rocker_port *rocker_port = netdev_priv(dev);
5209 struct net_device *master = netdev_master_upper_dev_get(dev);
5210 int err = 0;
5211
a6e95cc7
SH		 5212 /* There are currently three cases handled here:
5213 * 1. Joining a bridge
5214 * 2. Leaving a previously joined bridge
5215 * 3. Other, e.g. being added to or removed from a bond or openvswitch,
5216 * in which case nothing is done
5217 */
6c707945
SF		 5218 if (master && master->rtnl_link_ops &&
5219 !strcmp(master->rtnl_link_ops->kind, "bridge"))
5220 err = rocker_port_bridge_join(rocker_port, master);
a6e95cc7 5221 else if (rocker_port_is_bridged(rocker_port))
6c707945
SF		 5222 err = rocker_port_bridge_leave(rocker_port);
5223
5224 return err;
5225}
5226
5227static int rocker_netdevice_event(struct notifier_block *unused,
5228 unsigned long event, void *ptr)
5229{
5230 struct net_device *dev;
5231 int err;
5232
5233 switch (event) {
5234 case NETDEV_CHANGEUPPER:
5235 dev = netdev_notifier_info_to_dev(ptr);
5236 if (!rocker_port_dev_check(dev))
5237 return NOTIFY_DONE;
5238 err = rocker_port_master_changed(dev);
5239 if (err)
5240 netdev_warn(dev,
5241 "failed to reflect master change (err %d)\n",
5242 err);
5243 break;
5244 }
5245
5246 return NOTIFY_DONE;
5247}
5248
5249static struct notifier_block rocker_netdevice_nb __read_mostly = {
5250 .notifier_call = rocker_netdevice_event,
5251};
5252
c1beeef7
SF		 5253/************************************
5254 * Net event notifier event handler
5255 ************************************/
5256
5257static int rocker_neigh_update(struct net_device *dev, struct neighbour *n)
5258{
5259 struct rocker_port *rocker_port = netdev_priv(dev);
5260 int flags = (n->nud_state & NUD_VALID) ? 0 : ROCKER_OP_FLAG_REMOVE;
5261 __be32 ip_addr = *(__be32 *)n->primary_key;
5262
c4f20321
SF		 5263 return rocker_port_ipv4_neigh(rocker_port, SWITCHDEV_TRANS_NONE,
5264 flags, ip_addr, n->ha);
c1beeef7
SF		 5265}
5266
5267static int rocker_netevent_event(struct notifier_block *unused,
5268 unsigned long event, void *ptr)
5269{
5270 struct net_device *dev;
5271 struct neighbour *n = ptr;
5272 int err;
5273
5274 switch (event) {
5275 case NETEVENT_NEIGH_UPDATE:
5276 if (n->tbl != &arp_tbl)
5277 return NOTIFY_DONE;
5278 dev = n->dev;
5279 if (!rocker_port_dev_check(dev))
5280 return NOTIFY_DONE;
5281 err = rocker_neigh_update(dev, n);
5282 if (err)
5283 netdev_warn(dev,
5284 "failed to handle neigh update (err %d)\n",
5285 err);
5286 break;
5287 }
5288
5289 return NOTIFY_DONE;
5290}
5291
5292static struct notifier_block rocker_netevent_nb __read_mostly = {
5293 .notifier_call = rocker_netevent_event,
5294};
5295
4b8ac966
JP		 5296/***********************
5297 * Module init and exit
5298 ***********************/
5299
5300static int __init rocker_module_init(void)
5301{
6c707945
SF		 5302 int err;
5303
5304 register_netdevice_notifier(&rocker_netdevice_nb);
c1beeef7 5305 register_netevent_notifier(&rocker_netevent_nb);
6c707945
SF		 5306 err = pci_register_driver(&rocker_pci_driver);
5307 if (err)
5308 goto err_pci_register_driver;
5309 return 0;
5310
5311err_pci_register_driver:
c1beeef7 5312 unregister_netdevice_notifier(&rocker_netevent_nb);
6c707945
SF		 5313 unregister_netdevice_notifier(&rocker_netdevice_nb);
5314 return err;
4b8ac966
JP		 5315}
5316
5317static void __exit rocker_module_exit(void)
5318{
c1beeef7 5319 unregister_netevent_notifier(&rocker_netevent_nb);
6c707945 5320 unregister_netdevice_notifier(&rocker_netdevice_nb);
4b8ac966
JP		 5321 pci_unregister_driver(&rocker_pci_driver);
5322}
5323
5324module_init(rocker_module_init);
5325module_exit(rocker_module_exit);
5326
5327MODULE_LICENSE("GPL v2");
5328MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
5329MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
5330MODULE_DESCRIPTION("Rocker switch device driver");
5331MODULE_DEVICE_TABLE(pci, rocker_pci_id_table);
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