2 * drivers/net/ethernet/rocker/rocker.c - Rocker switch device driver
3 * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
4 * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/pci.h>
15 #include <linux/interrupt.h>
16 #include <linux/sched.h>
17 #include <linux/wait.h>
18 #include <linux/spinlock.h>
19 #include <linux/hashtable.h>
20 #include <linux/crc32.h>
21 #include <linux/sort.h>
22 #include <linux/random.h>
23 #include <linux/netdevice.h>
24 #include <linux/inetdevice.h>
25 #include <linux/skbuff.h>
26 #include <linux/socket.h>
27 #include <linux/etherdevice.h>
28 #include <linux/ethtool.h>
29 #include <linux/if_ether.h>
30 #include <linux/if_vlan.h>
31 #include <linux/if_bridge.h>
32 #include <linux/bitops.h>
33 #include <linux/ctype.h>
34 #include <net/switchdev.h>
35 #include <net/rtnetlink.h>
36 #include <net/ip_fib.h>
37 #include <net/netevent.h>
39 #include <asm-generic/io-64-nonatomic-lo-hi.h>
40 #include <generated/utsrelease.h>
44 static const char rocker_driver_name
[] = "rocker";
46 static const struct pci_device_id rocker_pci_id_table
[] = {
47 {PCI_VDEVICE(REDHAT
, PCI_DEVICE_ID_REDHAT_ROCKER
), 0},
51 struct rocker_flow_tbl_key
{
53 enum rocker_of_dpa_table_id tbl_id
;
58 enum rocker_of_dpa_table_id goto_tbl
;
64 enum rocker_of_dpa_table_id goto_tbl
;
73 u8 eth_dst_mask
[ETH_ALEN
];
76 enum rocker_of_dpa_table_id goto_tbl
;
83 enum rocker_of_dpa_table_id goto_tbl
;
88 u8 eth_dst_mask
[ETH_ALEN
];
93 enum rocker_of_dpa_table_id goto_tbl
;
100 u8 eth_src
[ETH_ALEN
];
101 u8 eth_src_mask
[ETH_ALEN
];
102 u8 eth_dst
[ETH_ALEN
];
103 u8 eth_dst_mask
[ETH_ALEN
];
116 struct rocker_flow_tbl_entry
{
117 struct hlist_node entry
;
120 struct rocker_flow_tbl_key key
;
122 u32 key_crc32
; /* key */
125 struct rocker_group_tbl_entry
{
126 struct hlist_node entry
;
128 u32 group_id
; /* key */
136 u8 eth_src
[ETH_ALEN
];
137 u8 eth_dst
[ETH_ALEN
];
142 u8 eth_src
[ETH_ALEN
];
143 u8 eth_dst
[ETH_ALEN
];
151 struct rocker_fdb_tbl_entry
{
152 struct hlist_node entry
;
153 u32 key_crc32
; /* key */
155 struct rocker_fdb_tbl_key
{
162 struct rocker_internal_vlan_tbl_entry
{
163 struct hlist_node entry
;
164 int ifindex
; /* key */
169 struct rocker_neigh_tbl_entry
{
170 struct hlist_node entry
;
171 __be32 ip_addr
; /* key */
172 struct net_device
*dev
;
175 u8 eth_dst
[ETH_ALEN
];
179 struct rocker_desc_info
{
180 char *data
; /* mapped */
183 struct rocker_desc
*desc
;
187 struct rocker_dma_ring_info
{
191 struct rocker_desc
*desc
; /* mapped */
193 struct rocker_desc_info
*desc_info
;
200 ROCKER_CTRL_LINK_LOCAL_MCAST
,
201 ROCKER_CTRL_LOCAL_ARP
,
202 ROCKER_CTRL_IPV4_MCAST
,
203 ROCKER_CTRL_IPV6_MCAST
,
204 ROCKER_CTRL_DFLT_BRIDGING
,
205 ROCKER_CTRL_DFLT_OVS
,
209 #define ROCKER_INTERNAL_VLAN_ID_BASE 0x0f00
210 #define ROCKER_N_INTERNAL_VLANS 255
211 #define ROCKER_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID)
212 #define ROCKER_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(ROCKER_N_INTERNAL_VLANS)
215 struct net_device
*dev
;
216 struct net_device
*bridge_dev
;
217 struct rocker
*rocker
;
218 unsigned int port_number
;
220 __be16 internal_vlan_id
;
223 bool ctrls
[ROCKER_CTRL_MAX
];
224 unsigned long vlan_bitmap
[ROCKER_VLAN_BITMAP_LEN
];
225 struct napi_struct napi_tx
;
226 struct napi_struct napi_rx
;
227 struct rocker_dma_ring_info tx_ring
;
228 struct rocker_dma_ring_info rx_ring
;
229 struct list_head trans_mem
;
233 struct pci_dev
*pdev
;
235 struct msix_entry
*msix_entries
;
236 unsigned int port_count
;
237 struct rocker_port
**ports
;
241 spinlock_t cmd_ring_lock
; /* for cmd ring accesses */
242 struct rocker_dma_ring_info cmd_ring
;
243 struct rocker_dma_ring_info event_ring
;
244 DECLARE_HASHTABLE(flow_tbl
, 16);
245 spinlock_t flow_tbl_lock
; /* for flow tbl accesses */
246 u64 flow_tbl_next_cookie
;
247 DECLARE_HASHTABLE(group_tbl
, 16);
248 spinlock_t group_tbl_lock
; /* for group tbl accesses */
249 DECLARE_HASHTABLE(fdb_tbl
, 16);
250 spinlock_t fdb_tbl_lock
; /* for fdb tbl accesses */
251 unsigned long internal_vlan_bitmap
[ROCKER_INTERNAL_VLAN_BITMAP_LEN
];
252 DECLARE_HASHTABLE(internal_vlan_tbl
, 8);
253 spinlock_t internal_vlan_tbl_lock
; /* for vlan tbl accesses */
254 DECLARE_HASHTABLE(neigh_tbl
, 16);
255 spinlock_t neigh_tbl_lock
; /* for neigh tbl accesses */
256 u32 neigh_tbl_next_index
;
259 static const u8 zero_mac
[ETH_ALEN
] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
260 static const u8 ff_mac
[ETH_ALEN
] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
261 static const u8 ll_mac
[ETH_ALEN
] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
262 static const u8 ll_mask
[ETH_ALEN
] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
263 static const u8 mcast_mac
[ETH_ALEN
] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
264 static const u8 ipv4_mcast
[ETH_ALEN
] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
265 static const u8 ipv4_mask
[ETH_ALEN
] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
266 static const u8 ipv6_mcast
[ETH_ALEN
] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
267 static const u8 ipv6_mask
[ETH_ALEN
] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
269 /* Rocker priority levels for flow table entries. Higher
270 * priority match takes precedence over lower priority match.
274 ROCKER_PRIORITY_UNKNOWN
= 0,
275 ROCKER_PRIORITY_IG_PORT
= 1,
276 ROCKER_PRIORITY_VLAN
= 1,
277 ROCKER_PRIORITY_TERM_MAC_UCAST
= 0,
278 ROCKER_PRIORITY_TERM_MAC_MCAST
= 1,
279 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT
= 1,
280 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD
= 2,
281 ROCKER_PRIORITY_BRIDGING_VLAN
= 3,
282 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT
= 1,
283 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD
= 2,
284 ROCKER_PRIORITY_BRIDGING_TENANT
= 3,
285 ROCKER_PRIORITY_ACL_CTRL
= 3,
286 ROCKER_PRIORITY_ACL_NORMAL
= 2,
287 ROCKER_PRIORITY_ACL_DFLT
= 1,
290 static bool rocker_vlan_id_is_internal(__be16 vlan_id
)
292 u16 start
= ROCKER_INTERNAL_VLAN_ID_BASE
;
294 u16 _vlan_id
= ntohs(vlan_id
);
296 return (_vlan_id
>= start
&& _vlan_id
<= end
);
299 static __be16
rocker_port_vid_to_vlan(const struct rocker_port
*rocker_port
,
300 u16 vid
, bool *pop_vlan
)
306 vlan_id
= htons(vid
);
308 vlan_id
= rocker_port
->internal_vlan_id
;
316 static u16
rocker_port_vlan_to_vid(const struct rocker_port
*rocker_port
,
319 if (rocker_vlan_id_is_internal(vlan_id
))
322 return ntohs(vlan_id
);
325 static bool rocker_port_is_bridged(const struct rocker_port
*rocker_port
)
327 return rocker_port
->bridge_dev
&&
328 netif_is_bridge_master(rocker_port
->bridge_dev
);
331 static bool rocker_port_is_ovsed(const struct rocker_port
*rocker_port
)
333 return rocker_port
->bridge_dev
&&
334 netif_is_ovs_master(rocker_port
->bridge_dev
);
337 #define ROCKER_OP_FLAG_REMOVE BIT(0)
338 #define ROCKER_OP_FLAG_NOWAIT BIT(1)
339 #define ROCKER_OP_FLAG_LEARNED BIT(2)
340 #define ROCKER_OP_FLAG_REFRESH BIT(3)
342 static void *__rocker_port_mem_alloc(struct rocker_port
*rocker_port
,
343 enum switchdev_trans trans
, int flags
,
346 struct list_head
*elem
= NULL
;
347 gfp_t gfp_flags
= (flags
& ROCKER_OP_FLAG_NOWAIT
) ?
348 GFP_ATOMIC
: GFP_KERNEL
;
350 /* If in transaction prepare phase, allocate the memory
351 * and enqueue it on a per-port list. If in transaction
352 * commit phase, dequeue the memory from the per-port list
353 * rather than re-allocating the memory. The idea is the
354 * driver code paths for prepare and commit are identical
355 * so the memory allocated in the prepare phase is the
356 * memory used in the commit phase.
360 case SWITCHDEV_TRANS_PREPARE
:
361 elem
= kzalloc(size
+ sizeof(*elem
), gfp_flags
);
364 list_add_tail(elem
, &rocker_port
->trans_mem
);
366 case SWITCHDEV_TRANS_COMMIT
:
367 BUG_ON(list_empty(&rocker_port
->trans_mem
));
368 elem
= rocker_port
->trans_mem
.next
;
371 case SWITCHDEV_TRANS_NONE
:
372 elem
= kzalloc(size
+ sizeof(*elem
), gfp_flags
);
374 INIT_LIST_HEAD(elem
);
380 return elem
? elem
+ 1 : NULL
;
383 static void *rocker_port_kzalloc(struct rocker_port
*rocker_port
,
384 enum switchdev_trans trans
, int flags
,
387 return __rocker_port_mem_alloc(rocker_port
, trans
, flags
, size
);
390 static void *rocker_port_kcalloc(struct rocker_port
*rocker_port
,
391 enum switchdev_trans trans
, int flags
,
392 size_t n
, size_t size
)
394 return __rocker_port_mem_alloc(rocker_port
, trans
, flags
, n
* size
);
397 static void rocker_port_kfree(enum switchdev_trans trans
, const void *mem
)
399 struct list_head
*elem
;
401 /* Frees are ignored if in transaction prepare phase. The
402 * memory remains on the per-port list until freed in the
406 if (trans
== SWITCHDEV_TRANS_PREPARE
)
409 elem
= (struct list_head
*)mem
- 1;
410 BUG_ON(!list_empty(elem
));
415 wait_queue_head_t wait
;
420 static void rocker_wait_reset(struct rocker_wait
*wait
)
423 wait
->nowait
= false;
426 static void rocker_wait_init(struct rocker_wait
*wait
)
428 init_waitqueue_head(&wait
->wait
);
429 rocker_wait_reset(wait
);
432 static struct rocker_wait
*rocker_wait_create(struct rocker_port
*rocker_port
,
433 enum switchdev_trans trans
,
436 struct rocker_wait
*wait
;
438 wait
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*wait
));
441 rocker_wait_init(wait
);
445 static void rocker_wait_destroy(enum switchdev_trans trans
,
446 struct rocker_wait
*wait
)
448 rocker_port_kfree(trans
, wait
);
451 static bool rocker_wait_event_timeout(struct rocker_wait
*wait
,
452 unsigned long timeout
)
454 wait_event_timeout(wait
->wait
, wait
->done
, HZ
/ 10);
460 static void rocker_wait_wake_up(struct rocker_wait
*wait
)
463 wake_up(&wait
->wait
);
466 static u32
rocker_msix_vector(const struct rocker
*rocker
, unsigned int vector
)
468 return rocker
->msix_entries
[vector
].vector
;
471 static u32
rocker_msix_tx_vector(const struct rocker_port
*rocker_port
)
473 return rocker_msix_vector(rocker_port
->rocker
,
474 ROCKER_MSIX_VEC_TX(rocker_port
->port_number
));
477 static u32
rocker_msix_rx_vector(const struct rocker_port
*rocker_port
)
479 return rocker_msix_vector(rocker_port
->rocker
,
480 ROCKER_MSIX_VEC_RX(rocker_port
->port_number
));
483 #define rocker_write32(rocker, reg, val) \
484 writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))
485 #define rocker_read32(rocker, reg) \
486 readl((rocker)->hw_addr + (ROCKER_ ## reg))
487 #define rocker_write64(rocker, reg, val) \
488 writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))
489 #define rocker_read64(rocker, reg) \
490 readq((rocker)->hw_addr + (ROCKER_ ## reg))
492 /*****************************
493 * HW basic testing functions
494 *****************************/
496 static int rocker_reg_test(const struct rocker
*rocker
)
498 const struct pci_dev
*pdev
= rocker
->pdev
;
504 rocker_write32(rocker
, TEST_REG
, rnd
);
505 test_reg
= rocker_read32(rocker
, TEST_REG
);
506 if (test_reg
!= rnd
* 2) {
507 dev_err(&pdev
->dev
, "unexpected 32bit register value %08llx, expected %08llx\n",
514 rnd
|= prandom_u32();
515 rocker_write64(rocker
, TEST_REG64
, rnd
);
516 test_reg
= rocker_read64(rocker
, TEST_REG64
);
517 if (test_reg
!= rnd
* 2) {
518 dev_err(&pdev
->dev
, "unexpected 64bit register value %16llx, expected %16llx\n",
526 static int rocker_dma_test_one(const struct rocker
*rocker
,
527 struct rocker_wait
*wait
, u32 test_type
,
528 dma_addr_t dma_handle
, const unsigned char *buf
,
529 const unsigned char *expect
, size_t size
)
531 const struct pci_dev
*pdev
= rocker
->pdev
;
534 rocker_wait_reset(wait
);
535 rocker_write32(rocker
, TEST_DMA_CTRL
, test_type
);
537 if (!rocker_wait_event_timeout(wait
, HZ
/ 10)) {
538 dev_err(&pdev
->dev
, "no interrupt received within a timeout\n");
542 for (i
= 0; i
< size
; i
++) {
543 if (buf
[i
] != expect
[i
]) {
544 dev_err(&pdev
->dev
, "unexpected memory content %02x at byte %x\n, %02x expected",
545 buf
[i
], i
, expect
[i
]);
552 #define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)
553 #define ROCKER_TEST_DMA_FILL_PATTERN 0x96
555 static int rocker_dma_test_offset(const struct rocker
*rocker
,
556 struct rocker_wait
*wait
, int offset
)
558 struct pci_dev
*pdev
= rocker
->pdev
;
559 unsigned char *alloc
;
561 unsigned char *expect
;
562 dma_addr_t dma_handle
;
566 alloc
= kzalloc(ROCKER_TEST_DMA_BUF_SIZE
* 2 + offset
,
567 GFP_KERNEL
| GFP_DMA
);
570 buf
= alloc
+ offset
;
571 expect
= buf
+ ROCKER_TEST_DMA_BUF_SIZE
;
573 dma_handle
= pci_map_single(pdev
, buf
, ROCKER_TEST_DMA_BUF_SIZE
,
574 PCI_DMA_BIDIRECTIONAL
);
575 if (pci_dma_mapping_error(pdev
, dma_handle
)) {
580 rocker_write64(rocker
, TEST_DMA_ADDR
, dma_handle
);
581 rocker_write32(rocker
, TEST_DMA_SIZE
, ROCKER_TEST_DMA_BUF_SIZE
);
583 memset(expect
, ROCKER_TEST_DMA_FILL_PATTERN
, ROCKER_TEST_DMA_BUF_SIZE
);
584 err
= rocker_dma_test_one(rocker
, wait
, ROCKER_TEST_DMA_CTRL_FILL
,
585 dma_handle
, buf
, expect
,
586 ROCKER_TEST_DMA_BUF_SIZE
);
590 memset(expect
, 0, ROCKER_TEST_DMA_BUF_SIZE
);
591 err
= rocker_dma_test_one(rocker
, wait
, ROCKER_TEST_DMA_CTRL_CLEAR
,
592 dma_handle
, buf
, expect
,
593 ROCKER_TEST_DMA_BUF_SIZE
);
597 prandom_bytes(buf
, ROCKER_TEST_DMA_BUF_SIZE
);
598 for (i
= 0; i
< ROCKER_TEST_DMA_BUF_SIZE
; i
++)
600 err
= rocker_dma_test_one(rocker
, wait
, ROCKER_TEST_DMA_CTRL_INVERT
,
601 dma_handle
, buf
, expect
,
602 ROCKER_TEST_DMA_BUF_SIZE
);
607 pci_unmap_single(pdev
, dma_handle
, ROCKER_TEST_DMA_BUF_SIZE
,
608 PCI_DMA_BIDIRECTIONAL
);
615 static int rocker_dma_test(const struct rocker
*rocker
,
616 struct rocker_wait
*wait
)
621 for (i
= 0; i
< 8; i
++) {
622 err
= rocker_dma_test_offset(rocker
, wait
, i
);
629 static irqreturn_t
rocker_test_irq_handler(int irq
, void *dev_id
)
631 struct rocker_wait
*wait
= dev_id
;
633 rocker_wait_wake_up(wait
);
638 static int rocker_basic_hw_test(const struct rocker
*rocker
)
640 const struct pci_dev
*pdev
= rocker
->pdev
;
641 struct rocker_wait wait
;
644 err
= rocker_reg_test(rocker
);
646 dev_err(&pdev
->dev
, "reg test failed\n");
650 err
= request_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_TEST
),
651 rocker_test_irq_handler
, 0,
652 rocker_driver_name
, &wait
);
654 dev_err(&pdev
->dev
, "cannot assign test irq\n");
658 rocker_wait_init(&wait
);
659 rocker_write32(rocker
, TEST_IRQ
, ROCKER_MSIX_VEC_TEST
);
661 if (!rocker_wait_event_timeout(&wait
, HZ
/ 10)) {
662 dev_err(&pdev
->dev
, "no interrupt received within a timeout\n");
667 err
= rocker_dma_test(rocker
, &wait
);
669 dev_err(&pdev
->dev
, "dma test failed\n");
672 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_TEST
), &wait
);
680 #define ROCKER_TLV_ALIGNTO 8U
681 #define ROCKER_TLV_ALIGN(len) \
682 (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
683 #define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
685 /* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
686 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
687 * | Header | Pad | Payload | Pad |
688 * | (struct rocker_tlv) | ing | | ing |
689 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
690 * <--------------------------- tlv->len -------------------------->
693 static struct rocker_tlv
*rocker_tlv_next(const struct rocker_tlv
*tlv
,
696 int totlen
= ROCKER_TLV_ALIGN(tlv
->len
);
698 *remaining
-= totlen
;
699 return (struct rocker_tlv
*) ((char *) tlv
+ totlen
);
702 static int rocker_tlv_ok(const struct rocker_tlv
*tlv
, int remaining
)
704 return remaining
>= (int) ROCKER_TLV_HDRLEN
&&
705 tlv
->len
>= ROCKER_TLV_HDRLEN
&&
706 tlv
->len
<= remaining
;
709 #define rocker_tlv_for_each(pos, head, len, rem) \
710 for (pos = head, rem = len; \
711 rocker_tlv_ok(pos, rem); \
712 pos = rocker_tlv_next(pos, &(rem)))
714 #define rocker_tlv_for_each_nested(pos, tlv, rem) \
715 rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
716 rocker_tlv_len(tlv), rem)
718 static int rocker_tlv_attr_size(int payload
)
720 return ROCKER_TLV_HDRLEN
+ payload
;
723 static int rocker_tlv_total_size(int payload
)
725 return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload
));
728 static int rocker_tlv_padlen(int payload
)
730 return rocker_tlv_total_size(payload
) - rocker_tlv_attr_size(payload
);
733 static int rocker_tlv_type(const struct rocker_tlv
*tlv
)
738 static void *rocker_tlv_data(const struct rocker_tlv
*tlv
)
740 return (char *) tlv
+ ROCKER_TLV_HDRLEN
;
743 static int rocker_tlv_len(const struct rocker_tlv
*tlv
)
745 return tlv
->len
- ROCKER_TLV_HDRLEN
;
748 static u8
rocker_tlv_get_u8(const struct rocker_tlv
*tlv
)
750 return *(u8
*) rocker_tlv_data(tlv
);
753 static u16
rocker_tlv_get_u16(const struct rocker_tlv
*tlv
)
755 return *(u16
*) rocker_tlv_data(tlv
);
758 static __be16
rocker_tlv_get_be16(const struct rocker_tlv
*tlv
)
760 return *(__be16
*) rocker_tlv_data(tlv
);
763 static u32
rocker_tlv_get_u32(const struct rocker_tlv
*tlv
)
765 return *(u32
*) rocker_tlv_data(tlv
);
768 static u64
rocker_tlv_get_u64(const struct rocker_tlv
*tlv
)
770 return *(u64
*) rocker_tlv_data(tlv
);
773 static void rocker_tlv_parse(const struct rocker_tlv
**tb
, int maxtype
,
774 const char *buf
, int buf_len
)
776 const struct rocker_tlv
*tlv
;
777 const struct rocker_tlv
*head
= (const struct rocker_tlv
*) buf
;
780 memset(tb
, 0, sizeof(struct rocker_tlv
*) * (maxtype
+ 1));
782 rocker_tlv_for_each(tlv
, head
, buf_len
, rem
) {
783 u32 type
= rocker_tlv_type(tlv
);
785 if (type
> 0 && type
<= maxtype
)
790 static void rocker_tlv_parse_nested(const struct rocker_tlv
**tb
, int maxtype
,
791 const struct rocker_tlv
*tlv
)
793 rocker_tlv_parse(tb
, maxtype
, rocker_tlv_data(tlv
),
794 rocker_tlv_len(tlv
));
797 static void rocker_tlv_parse_desc(const struct rocker_tlv
**tb
, int maxtype
,
798 const struct rocker_desc_info
*desc_info
)
800 rocker_tlv_parse(tb
, maxtype
, desc_info
->data
,
801 desc_info
->desc
->tlv_size
);
804 static struct rocker_tlv
*rocker_tlv_start(struct rocker_desc_info
*desc_info
)
806 return (struct rocker_tlv
*) ((char *) desc_info
->data
+
807 desc_info
->tlv_size
);
810 static int rocker_tlv_put(struct rocker_desc_info
*desc_info
,
811 int attrtype
, int attrlen
, const void *data
)
813 int tail_room
= desc_info
->data_size
- desc_info
->tlv_size
;
814 int total_size
= rocker_tlv_total_size(attrlen
);
815 struct rocker_tlv
*tlv
;
817 if (unlikely(tail_room
< total_size
))
820 tlv
= rocker_tlv_start(desc_info
);
821 desc_info
->tlv_size
+= total_size
;
822 tlv
->type
= attrtype
;
823 tlv
->len
= rocker_tlv_attr_size(attrlen
);
824 memcpy(rocker_tlv_data(tlv
), data
, attrlen
);
825 memset((char *) tlv
+ tlv
->len
, 0, rocker_tlv_padlen(attrlen
));
829 static int rocker_tlv_put_u8(struct rocker_desc_info
*desc_info
,
830 int attrtype
, u8 value
)
832 return rocker_tlv_put(desc_info
, attrtype
, sizeof(u8
), &value
);
835 static int rocker_tlv_put_u16(struct rocker_desc_info
*desc_info
,
836 int attrtype
, u16 value
)
838 return rocker_tlv_put(desc_info
, attrtype
, sizeof(u16
), &value
);
841 static int rocker_tlv_put_be16(struct rocker_desc_info
*desc_info
,
842 int attrtype
, __be16 value
)
844 return rocker_tlv_put(desc_info
, attrtype
, sizeof(__be16
), &value
);
847 static int rocker_tlv_put_u32(struct rocker_desc_info
*desc_info
,
848 int attrtype
, u32 value
)
850 return rocker_tlv_put(desc_info
, attrtype
, sizeof(u32
), &value
);
853 static int rocker_tlv_put_be32(struct rocker_desc_info
*desc_info
,
854 int attrtype
, __be32 value
)
856 return rocker_tlv_put(desc_info
, attrtype
, sizeof(__be32
), &value
);
859 static int rocker_tlv_put_u64(struct rocker_desc_info
*desc_info
,
860 int attrtype
, u64 value
)
862 return rocker_tlv_put(desc_info
, attrtype
, sizeof(u64
), &value
);
865 static struct rocker_tlv
*
866 rocker_tlv_nest_start(struct rocker_desc_info
*desc_info
, int attrtype
)
868 struct rocker_tlv
*start
= rocker_tlv_start(desc_info
);
870 if (rocker_tlv_put(desc_info
, attrtype
, 0, NULL
) < 0)
876 static void rocker_tlv_nest_end(struct rocker_desc_info
*desc_info
,
877 struct rocker_tlv
*start
)
879 start
->len
= (char *) rocker_tlv_start(desc_info
) - (char *) start
;
882 static void rocker_tlv_nest_cancel(struct rocker_desc_info
*desc_info
,
883 const struct rocker_tlv
*start
)
885 desc_info
->tlv_size
= (const char *) start
- desc_info
->data
;
888 /******************************************
889 * DMA rings and descriptors manipulations
890 ******************************************/
892 static u32
__pos_inc(u32 pos
, size_t limit
)
894 return ++pos
== limit
? 0 : pos
;
897 static int rocker_desc_err(const struct rocker_desc_info
*desc_info
)
899 int err
= desc_info
->desc
->comp_err
& ~ROCKER_DMA_DESC_COMP_ERR_GEN
;
914 case -ROCKER_EMSGSIZE
:
916 case -ROCKER_ENOTSUP
:
918 case -ROCKER_ENOBUFS
:
925 static void rocker_desc_gen_clear(const struct rocker_desc_info
*desc_info
)
927 desc_info
->desc
->comp_err
&= ~ROCKER_DMA_DESC_COMP_ERR_GEN
;
930 static bool rocker_desc_gen(const struct rocker_desc_info
*desc_info
)
932 u32 comp_err
= desc_info
->desc
->comp_err
;
934 return comp_err
& ROCKER_DMA_DESC_COMP_ERR_GEN
? true : false;
937 static void *rocker_desc_cookie_ptr_get(const struct rocker_desc_info
*desc_info
)
939 return (void *)(uintptr_t)desc_info
->desc
->cookie
;
942 static void rocker_desc_cookie_ptr_set(const struct rocker_desc_info
*desc_info
,
945 desc_info
->desc
->cookie
= (uintptr_t) ptr
;
948 static struct rocker_desc_info
*
949 rocker_desc_head_get(const struct rocker_dma_ring_info
*info
)
951 static struct rocker_desc_info
*desc_info
;
952 u32 head
= __pos_inc(info
->head
, info
->size
);
954 desc_info
= &info
->desc_info
[info
->head
];
955 if (head
== info
->tail
)
956 return NULL
; /* ring full */
957 desc_info
->tlv_size
= 0;
961 static void rocker_desc_commit(const struct rocker_desc_info
*desc_info
)
963 desc_info
->desc
->buf_size
= desc_info
->data_size
;
964 desc_info
->desc
->tlv_size
= desc_info
->tlv_size
;
967 static void rocker_desc_head_set(const struct rocker
*rocker
,
968 struct rocker_dma_ring_info
*info
,
969 const struct rocker_desc_info
*desc_info
)
971 u32 head
= __pos_inc(info
->head
, info
->size
);
973 BUG_ON(head
== info
->tail
);
974 rocker_desc_commit(desc_info
);
976 rocker_write32(rocker
, DMA_DESC_HEAD(info
->type
), head
);
979 static struct rocker_desc_info
*
980 rocker_desc_tail_get(struct rocker_dma_ring_info
*info
)
982 static struct rocker_desc_info
*desc_info
;
984 if (info
->tail
== info
->head
)
985 return NULL
; /* nothing to be done between head and tail */
986 desc_info
= &info
->desc_info
[info
->tail
];
987 if (!rocker_desc_gen(desc_info
))
988 return NULL
; /* gen bit not set, desc is not ready yet */
989 info
->tail
= __pos_inc(info
->tail
, info
->size
);
990 desc_info
->tlv_size
= desc_info
->desc
->tlv_size
;
994 static void rocker_dma_ring_credits_set(const struct rocker
*rocker
,
995 const struct rocker_dma_ring_info
*info
,
999 rocker_write32(rocker
, DMA_DESC_CREDITS(info
->type
), credits
);
1002 static unsigned long rocker_dma_ring_size_fix(size_t size
)
1004 return max(ROCKER_DMA_SIZE_MIN
,
1005 min(roundup_pow_of_two(size
), ROCKER_DMA_SIZE_MAX
));
1008 static int rocker_dma_ring_create(const struct rocker
*rocker
,
1011 struct rocker_dma_ring_info
*info
)
1015 BUG_ON(size
!= rocker_dma_ring_size_fix(size
));
1020 info
->desc_info
= kcalloc(info
->size
, sizeof(*info
->desc_info
),
1022 if (!info
->desc_info
)
1025 info
->desc
= pci_alloc_consistent(rocker
->pdev
,
1026 info
->size
* sizeof(*info
->desc
),
1029 kfree(info
->desc_info
);
1033 for (i
= 0; i
< info
->size
; i
++)
1034 info
->desc_info
[i
].desc
= &info
->desc
[i
];
1036 rocker_write32(rocker
, DMA_DESC_CTRL(info
->type
),
1037 ROCKER_DMA_DESC_CTRL_RESET
);
1038 rocker_write64(rocker
, DMA_DESC_ADDR(info
->type
), info
->mapaddr
);
1039 rocker_write32(rocker
, DMA_DESC_SIZE(info
->type
), info
->size
);
1044 static void rocker_dma_ring_destroy(const struct rocker
*rocker
,
1045 const struct rocker_dma_ring_info
*info
)
1047 rocker_write64(rocker
, DMA_DESC_ADDR(info
->type
), 0);
1049 pci_free_consistent(rocker
->pdev
,
1050 info
->size
* sizeof(struct rocker_desc
),
1051 info
->desc
, info
->mapaddr
);
1052 kfree(info
->desc_info
);
1055 static void rocker_dma_ring_pass_to_producer(const struct rocker
*rocker
,
1056 struct rocker_dma_ring_info
*info
)
1060 BUG_ON(info
->head
|| info
->tail
);
1062 /* When ring is consumer, we need to advance head for each desc.
1063 * That tells hw that the desc is ready to be used by it.
1065 for (i
= 0; i
< info
->size
- 1; i
++)
1066 rocker_desc_head_set(rocker
, info
, &info
->desc_info
[i
]);
1067 rocker_desc_commit(&info
->desc_info
[i
]);
1070 static int rocker_dma_ring_bufs_alloc(const struct rocker
*rocker
,
1071 const struct rocker_dma_ring_info
*info
,
1072 int direction
, size_t buf_size
)
1074 struct pci_dev
*pdev
= rocker
->pdev
;
1078 for (i
= 0; i
< info
->size
; i
++) {
1079 struct rocker_desc_info
*desc_info
= &info
->desc_info
[i
];
1080 struct rocker_desc
*desc
= &info
->desc
[i
];
1081 dma_addr_t dma_handle
;
1084 buf
= kzalloc(buf_size
, GFP_KERNEL
| GFP_DMA
);
1090 dma_handle
= pci_map_single(pdev
, buf
, buf_size
, direction
);
1091 if (pci_dma_mapping_error(pdev
, dma_handle
)) {
1097 desc_info
->data
= buf
;
1098 desc_info
->data_size
= buf_size
;
1099 dma_unmap_addr_set(desc_info
, mapaddr
, dma_handle
);
1101 desc
->buf_addr
= dma_handle
;
1102 desc
->buf_size
= buf_size
;
1107 for (i
--; i
>= 0; i
--) {
1108 const struct rocker_desc_info
*desc_info
= &info
->desc_info
[i
];
1110 pci_unmap_single(pdev
, dma_unmap_addr(desc_info
, mapaddr
),
1111 desc_info
->data_size
, direction
);
1112 kfree(desc_info
->data
);
1117 static void rocker_dma_ring_bufs_free(const struct rocker
*rocker
,
1118 const struct rocker_dma_ring_info
*info
,
1121 struct pci_dev
*pdev
= rocker
->pdev
;
1124 for (i
= 0; i
< info
->size
; i
++) {
1125 const struct rocker_desc_info
*desc_info
= &info
->desc_info
[i
];
1126 struct rocker_desc
*desc
= &info
->desc
[i
];
1130 pci_unmap_single(pdev
, dma_unmap_addr(desc_info
, mapaddr
),
1131 desc_info
->data_size
, direction
);
1132 kfree(desc_info
->data
);
1136 static int rocker_dma_rings_init(struct rocker
*rocker
)
1138 const struct pci_dev
*pdev
= rocker
->pdev
;
1141 err
= rocker_dma_ring_create(rocker
, ROCKER_DMA_CMD
,
1142 ROCKER_DMA_CMD_DEFAULT_SIZE
,
1145 dev_err(&pdev
->dev
, "failed to create command dma ring\n");
1149 spin_lock_init(&rocker
->cmd_ring_lock
);
1151 err
= rocker_dma_ring_bufs_alloc(rocker
, &rocker
->cmd_ring
,
1152 PCI_DMA_BIDIRECTIONAL
, PAGE_SIZE
);
1154 dev_err(&pdev
->dev
, "failed to alloc command dma ring buffers\n");
1155 goto err_dma_cmd_ring_bufs_alloc
;
1158 err
= rocker_dma_ring_create(rocker
, ROCKER_DMA_EVENT
,
1159 ROCKER_DMA_EVENT_DEFAULT_SIZE
,
1160 &rocker
->event_ring
);
1162 dev_err(&pdev
->dev
, "failed to create event dma ring\n");
1163 goto err_dma_event_ring_create
;
1166 err
= rocker_dma_ring_bufs_alloc(rocker
, &rocker
->event_ring
,
1167 PCI_DMA_FROMDEVICE
, PAGE_SIZE
);
1169 dev_err(&pdev
->dev
, "failed to alloc event dma ring buffers\n");
1170 goto err_dma_event_ring_bufs_alloc
;
1172 rocker_dma_ring_pass_to_producer(rocker
, &rocker
->event_ring
);
1175 err_dma_event_ring_bufs_alloc
:
1176 rocker_dma_ring_destroy(rocker
, &rocker
->event_ring
);
1177 err_dma_event_ring_create
:
1178 rocker_dma_ring_bufs_free(rocker
, &rocker
->cmd_ring
,
1179 PCI_DMA_BIDIRECTIONAL
);
1180 err_dma_cmd_ring_bufs_alloc
:
1181 rocker_dma_ring_destroy(rocker
, &rocker
->cmd_ring
);
1185 static void rocker_dma_rings_fini(struct rocker
*rocker
)
1187 rocker_dma_ring_bufs_free(rocker
, &rocker
->event_ring
,
1188 PCI_DMA_BIDIRECTIONAL
);
1189 rocker_dma_ring_destroy(rocker
, &rocker
->event_ring
);
1190 rocker_dma_ring_bufs_free(rocker
, &rocker
->cmd_ring
,
1191 PCI_DMA_BIDIRECTIONAL
);
1192 rocker_dma_ring_destroy(rocker
, &rocker
->cmd_ring
);
1195 static int rocker_dma_rx_ring_skb_map(const struct rocker_port
*rocker_port
,
1196 struct rocker_desc_info
*desc_info
,
1197 struct sk_buff
*skb
, size_t buf_len
)
1199 const struct rocker
*rocker
= rocker_port
->rocker
;
1200 struct pci_dev
*pdev
= rocker
->pdev
;
1201 dma_addr_t dma_handle
;
1203 dma_handle
= pci_map_single(pdev
, skb
->data
, buf_len
,
1204 PCI_DMA_FROMDEVICE
);
1205 if (pci_dma_mapping_error(pdev
, dma_handle
))
1207 if (rocker_tlv_put_u64(desc_info
, ROCKER_TLV_RX_FRAG_ADDR
, dma_handle
))
1208 goto tlv_put_failure
;
1209 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_RX_FRAG_MAX_LEN
, buf_len
))
1210 goto tlv_put_failure
;
1214 pci_unmap_single(pdev
, dma_handle
, buf_len
, PCI_DMA_FROMDEVICE
);
1215 desc_info
->tlv_size
= 0;
1219 static size_t rocker_port_rx_buf_len(const struct rocker_port
*rocker_port
)
1221 return rocker_port
->dev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
1224 static int rocker_dma_rx_ring_skb_alloc(const struct rocker_port
*rocker_port
,
1225 struct rocker_desc_info
*desc_info
)
1227 struct net_device
*dev
= rocker_port
->dev
;
1228 struct sk_buff
*skb
;
1229 size_t buf_len
= rocker_port_rx_buf_len(rocker_port
);
1232 /* Ensure that hw will see tlv_size zero in case of an error.
1233 * That tells hw to use another descriptor.
1235 rocker_desc_cookie_ptr_set(desc_info
, NULL
);
1236 desc_info
->tlv_size
= 0;
1238 skb
= netdev_alloc_skb_ip_align(dev
, buf_len
);
1241 err
= rocker_dma_rx_ring_skb_map(rocker_port
, desc_info
, skb
, buf_len
);
1243 dev_kfree_skb_any(skb
);
1246 rocker_desc_cookie_ptr_set(desc_info
, skb
);
1250 static void rocker_dma_rx_ring_skb_unmap(const struct rocker
*rocker
,
1251 const struct rocker_tlv
**attrs
)
1253 struct pci_dev
*pdev
= rocker
->pdev
;
1254 dma_addr_t dma_handle
;
1257 if (!attrs
[ROCKER_TLV_RX_FRAG_ADDR
] ||
1258 !attrs
[ROCKER_TLV_RX_FRAG_MAX_LEN
])
1260 dma_handle
= rocker_tlv_get_u64(attrs
[ROCKER_TLV_RX_FRAG_ADDR
]);
1261 len
= rocker_tlv_get_u16(attrs
[ROCKER_TLV_RX_FRAG_MAX_LEN
]);
1262 pci_unmap_single(pdev
, dma_handle
, len
, PCI_DMA_FROMDEVICE
);
1265 static void rocker_dma_rx_ring_skb_free(const struct rocker
*rocker
,
1266 const struct rocker_desc_info
*desc_info
)
1268 const struct rocker_tlv
*attrs
[ROCKER_TLV_RX_MAX
+ 1];
1269 struct sk_buff
*skb
= rocker_desc_cookie_ptr_get(desc_info
);
1273 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_RX_MAX
, desc_info
);
1274 rocker_dma_rx_ring_skb_unmap(rocker
, attrs
);
1275 dev_kfree_skb_any(skb
);
1278 static int rocker_dma_rx_ring_skbs_alloc(const struct rocker_port
*rocker_port
)
1280 const struct rocker_dma_ring_info
*rx_ring
= &rocker_port
->rx_ring
;
1281 const struct rocker
*rocker
= rocker_port
->rocker
;
1285 for (i
= 0; i
< rx_ring
->size
; i
++) {
1286 err
= rocker_dma_rx_ring_skb_alloc(rocker_port
,
1287 &rx_ring
->desc_info
[i
]);
1294 for (i
--; i
>= 0; i
--)
1295 rocker_dma_rx_ring_skb_free(rocker
, &rx_ring
->desc_info
[i
]);
1299 static void rocker_dma_rx_ring_skbs_free(const struct rocker_port
*rocker_port
)
1301 const struct rocker_dma_ring_info
*rx_ring
= &rocker_port
->rx_ring
;
1302 const struct rocker
*rocker
= rocker_port
->rocker
;
1305 for (i
= 0; i
< rx_ring
->size
; i
++)
1306 rocker_dma_rx_ring_skb_free(rocker
, &rx_ring
->desc_info
[i
]);
1309 static int rocker_port_dma_rings_init(struct rocker_port
*rocker_port
)
1311 struct rocker
*rocker
= rocker_port
->rocker
;
1314 err
= rocker_dma_ring_create(rocker
,
1315 ROCKER_DMA_TX(rocker_port
->port_number
),
1316 ROCKER_DMA_TX_DEFAULT_SIZE
,
1317 &rocker_port
->tx_ring
);
1319 netdev_err(rocker_port
->dev
, "failed to create tx dma ring\n");
1323 err
= rocker_dma_ring_bufs_alloc(rocker
, &rocker_port
->tx_ring
,
1325 ROCKER_DMA_TX_DESC_SIZE
);
1327 netdev_err(rocker_port
->dev
, "failed to alloc tx dma ring buffers\n");
1328 goto err_dma_tx_ring_bufs_alloc
;
1331 err
= rocker_dma_ring_create(rocker
,
1332 ROCKER_DMA_RX(rocker_port
->port_number
),
1333 ROCKER_DMA_RX_DEFAULT_SIZE
,
1334 &rocker_port
->rx_ring
);
1336 netdev_err(rocker_port
->dev
, "failed to create rx dma ring\n");
1337 goto err_dma_rx_ring_create
;
1340 err
= rocker_dma_ring_bufs_alloc(rocker
, &rocker_port
->rx_ring
,
1341 PCI_DMA_BIDIRECTIONAL
,
1342 ROCKER_DMA_RX_DESC_SIZE
);
1344 netdev_err(rocker_port
->dev
, "failed to alloc rx dma ring buffers\n");
1345 goto err_dma_rx_ring_bufs_alloc
;
1348 err
= rocker_dma_rx_ring_skbs_alloc(rocker_port
);
1350 netdev_err(rocker_port
->dev
, "failed to alloc rx dma ring skbs\n");
1351 goto err_dma_rx_ring_skbs_alloc
;
1353 rocker_dma_ring_pass_to_producer(rocker
, &rocker_port
->rx_ring
);
1357 err_dma_rx_ring_skbs_alloc
:
1358 rocker_dma_ring_bufs_free(rocker
, &rocker_port
->rx_ring
,
1359 PCI_DMA_BIDIRECTIONAL
);
1360 err_dma_rx_ring_bufs_alloc
:
1361 rocker_dma_ring_destroy(rocker
, &rocker_port
->rx_ring
);
1362 err_dma_rx_ring_create
:
1363 rocker_dma_ring_bufs_free(rocker
, &rocker_port
->tx_ring
,
1365 err_dma_tx_ring_bufs_alloc
:
1366 rocker_dma_ring_destroy(rocker
, &rocker_port
->tx_ring
);
1370 static void rocker_port_dma_rings_fini(struct rocker_port
*rocker_port
)
1372 struct rocker
*rocker
= rocker_port
->rocker
;
1374 rocker_dma_rx_ring_skbs_free(rocker_port
);
1375 rocker_dma_ring_bufs_free(rocker
, &rocker_port
->rx_ring
,
1376 PCI_DMA_BIDIRECTIONAL
);
1377 rocker_dma_ring_destroy(rocker
, &rocker_port
->rx_ring
);
1378 rocker_dma_ring_bufs_free(rocker
, &rocker_port
->tx_ring
,
1380 rocker_dma_ring_destroy(rocker
, &rocker_port
->tx_ring
);
1383 static void rocker_port_set_enable(const struct rocker_port
*rocker_port
,
1386 u64 val
= rocker_read64(rocker_port
->rocker
, PORT_PHYS_ENABLE
);
1389 val
|= 1ULL << rocker_port
->pport
;
1391 val
&= ~(1ULL << rocker_port
->pport
);
1392 rocker_write64(rocker_port
->rocker
, PORT_PHYS_ENABLE
, val
);
1395 /********************************
1396 * Interrupt handler and helpers
1397 ********************************/
1399 static irqreturn_t
rocker_cmd_irq_handler(int irq
, void *dev_id
)
1401 struct rocker
*rocker
= dev_id
;
1402 const struct rocker_desc_info
*desc_info
;
1403 struct rocker_wait
*wait
;
1406 spin_lock(&rocker
->cmd_ring_lock
);
1407 while ((desc_info
= rocker_desc_tail_get(&rocker
->cmd_ring
))) {
1408 wait
= rocker_desc_cookie_ptr_get(desc_info
);
1410 rocker_desc_gen_clear(desc_info
);
1411 rocker_wait_destroy(SWITCHDEV_TRANS_NONE
, wait
);
1413 rocker_wait_wake_up(wait
);
1417 spin_unlock(&rocker
->cmd_ring_lock
);
1418 rocker_dma_ring_credits_set(rocker
, &rocker
->cmd_ring
, credits
);
1423 static void rocker_port_link_up(const struct rocker_port
*rocker_port
)
1425 netif_carrier_on(rocker_port
->dev
);
1426 netdev_info(rocker_port
->dev
, "Link is up\n");
1429 static void rocker_port_link_down(const struct rocker_port
*rocker_port
)
1431 netif_carrier_off(rocker_port
->dev
);
1432 netdev_info(rocker_port
->dev
, "Link is down\n");
1435 static int rocker_event_link_change(const struct rocker
*rocker
,
1436 const struct rocker_tlv
*info
)
1438 const struct rocker_tlv
*attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_MAX
+ 1];
1439 unsigned int port_number
;
1441 struct rocker_port
*rocker_port
;
1443 rocker_tlv_parse_nested(attrs
, ROCKER_TLV_EVENT_LINK_CHANGED_MAX
, info
);
1444 if (!attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT
] ||
1445 !attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP
])
1448 rocker_tlv_get_u32(attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT
]) - 1;
1449 link_up
= rocker_tlv_get_u8(attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP
]);
1451 if (port_number
>= rocker
->port_count
)
1454 rocker_port
= rocker
->ports
[port_number
];
1455 if (netif_carrier_ok(rocker_port
->dev
) != link_up
) {
1457 rocker_port_link_up(rocker_port
);
1459 rocker_port_link_down(rocker_port
);
1465 static int rocker_port_fdb(struct rocker_port
*rocker_port
,
1466 enum switchdev_trans trans
,
1467 const unsigned char *addr
,
1468 __be16 vlan_id
, int flags
);
1470 static int rocker_event_mac_vlan_seen(const struct rocker
*rocker
,
1471 const struct rocker_tlv
*info
)
1473 const struct rocker_tlv
*attrs
[ROCKER_TLV_EVENT_MAC_VLAN_MAX
+ 1];
1474 unsigned int port_number
;
1475 struct rocker_port
*rocker_port
;
1476 const unsigned char *addr
;
1477 int flags
= ROCKER_OP_FLAG_NOWAIT
| ROCKER_OP_FLAG_LEARNED
;
1480 rocker_tlv_parse_nested(attrs
, ROCKER_TLV_EVENT_MAC_VLAN_MAX
, info
);
1481 if (!attrs
[ROCKER_TLV_EVENT_MAC_VLAN_PPORT
] ||
1482 !attrs
[ROCKER_TLV_EVENT_MAC_VLAN_MAC
] ||
1483 !attrs
[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID
])
1486 rocker_tlv_get_u32(attrs
[ROCKER_TLV_EVENT_MAC_VLAN_PPORT
]) - 1;
1487 addr
= rocker_tlv_data(attrs
[ROCKER_TLV_EVENT_MAC_VLAN_MAC
]);
1488 vlan_id
= rocker_tlv_get_be16(attrs
[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID
]);
1490 if (port_number
>= rocker
->port_count
)
1493 rocker_port
= rocker
->ports
[port_number
];
1495 if (rocker_port
->stp_state
!= BR_STATE_LEARNING
&&
1496 rocker_port
->stp_state
!= BR_STATE_FORWARDING
)
1499 return rocker_port_fdb(rocker_port
, SWITCHDEV_TRANS_NONE
,
1500 addr
, vlan_id
, flags
);
1503 static int rocker_event_process(const struct rocker
*rocker
,
1504 const struct rocker_desc_info
*desc_info
)
1506 const struct rocker_tlv
*attrs
[ROCKER_TLV_EVENT_MAX
+ 1];
1507 const struct rocker_tlv
*info
;
1510 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_EVENT_MAX
, desc_info
);
1511 if (!attrs
[ROCKER_TLV_EVENT_TYPE
] ||
1512 !attrs
[ROCKER_TLV_EVENT_INFO
])
1515 type
= rocker_tlv_get_u16(attrs
[ROCKER_TLV_EVENT_TYPE
]);
1516 info
= attrs
[ROCKER_TLV_EVENT_INFO
];
1519 case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED
:
1520 return rocker_event_link_change(rocker
, info
);
1521 case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN
:
1522 return rocker_event_mac_vlan_seen(rocker
, info
);
1528 static irqreturn_t
rocker_event_irq_handler(int irq
, void *dev_id
)
1530 struct rocker
*rocker
= dev_id
;
1531 const struct pci_dev
*pdev
= rocker
->pdev
;
1532 const struct rocker_desc_info
*desc_info
;
1536 while ((desc_info
= rocker_desc_tail_get(&rocker
->event_ring
))) {
1537 err
= rocker_desc_err(desc_info
);
1539 dev_err(&pdev
->dev
, "event desc received with err %d\n",
1542 err
= rocker_event_process(rocker
, desc_info
);
1544 dev_err(&pdev
->dev
, "event processing failed with err %d\n",
1547 rocker_desc_gen_clear(desc_info
);
1548 rocker_desc_head_set(rocker
, &rocker
->event_ring
, desc_info
);
1551 rocker_dma_ring_credits_set(rocker
, &rocker
->event_ring
, credits
);
1556 static irqreturn_t
rocker_tx_irq_handler(int irq
, void *dev_id
)
1558 struct rocker_port
*rocker_port
= dev_id
;
1560 napi_schedule(&rocker_port
->napi_tx
);
1564 static irqreturn_t
rocker_rx_irq_handler(int irq
, void *dev_id
)
1566 struct rocker_port
*rocker_port
= dev_id
;
1568 napi_schedule(&rocker_port
->napi_rx
);
1572 /********************
1574 ********************/
1576 typedef int (*rocker_cmd_prep_cb_t
)(const struct rocker_port
*rocker_port
,
1577 struct rocker_desc_info
*desc_info
,
1580 typedef int (*rocker_cmd_proc_cb_t
)(const struct rocker_port
*rocker_port
,
1581 const struct rocker_desc_info
*desc_info
,
1584 static int rocker_cmd_exec(struct rocker_port
*rocker_port
,
1585 enum switchdev_trans trans
, int flags
,
1586 rocker_cmd_prep_cb_t prepare
, void *prepare_priv
,
1587 rocker_cmd_proc_cb_t process
, void *process_priv
)
1589 struct rocker
*rocker
= rocker_port
->rocker
;
1590 struct rocker_desc_info
*desc_info
;
1591 struct rocker_wait
*wait
;
1592 bool nowait
= !!(flags
& ROCKER_OP_FLAG_NOWAIT
);
1593 unsigned long lock_flags
;
1596 wait
= rocker_wait_create(rocker_port
, trans
, flags
);
1599 wait
->nowait
= nowait
;
1601 spin_lock_irqsave(&rocker
->cmd_ring_lock
, lock_flags
);
1603 desc_info
= rocker_desc_head_get(&rocker
->cmd_ring
);
1605 spin_unlock_irqrestore(&rocker
->cmd_ring_lock
, lock_flags
);
1610 err
= prepare(rocker_port
, desc_info
, prepare_priv
);
1612 spin_unlock_irqrestore(&rocker
->cmd_ring_lock
, lock_flags
);
1616 rocker_desc_cookie_ptr_set(desc_info
, wait
);
1618 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
1619 rocker_desc_head_set(rocker
, &rocker
->cmd_ring
, desc_info
);
1621 spin_unlock_irqrestore(&rocker
->cmd_ring_lock
, lock_flags
);
1626 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
1627 if (!rocker_wait_event_timeout(wait
, HZ
/ 10))
1630 err
= rocker_desc_err(desc_info
);
1635 err
= process(rocker_port
, desc_info
, process_priv
);
1637 rocker_desc_gen_clear(desc_info
);
1639 rocker_wait_destroy(trans
, wait
);
1644 rocker_cmd_get_port_settings_prep(const struct rocker_port
*rocker_port
,
1645 struct rocker_desc_info
*desc_info
,
1648 struct rocker_tlv
*cmd_info
;
1650 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
1651 ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS
))
1653 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
1656 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT
,
1657 rocker_port
->pport
))
1659 rocker_tlv_nest_end(desc_info
, cmd_info
);
1664 rocker_cmd_get_port_settings_ethtool_proc(const struct rocker_port
*rocker_port
,
1665 const struct rocker_desc_info
*desc_info
,
1668 struct ethtool_cmd
*ecmd
= priv
;
1669 const struct rocker_tlv
*attrs
[ROCKER_TLV_CMD_MAX
+ 1];
1670 const struct rocker_tlv
*info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_MAX
+ 1];
1675 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_CMD_MAX
, desc_info
);
1676 if (!attrs
[ROCKER_TLV_CMD_INFO
])
1679 rocker_tlv_parse_nested(info_attrs
, ROCKER_TLV_CMD_PORT_SETTINGS_MAX
,
1680 attrs
[ROCKER_TLV_CMD_INFO
]);
1681 if (!info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED
] ||
1682 !info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX
] ||
1683 !info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG
])
1686 speed
= rocker_tlv_get_u32(info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED
]);
1687 duplex
= rocker_tlv_get_u8(info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX
]);
1688 autoneg
= rocker_tlv_get_u8(info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG
]);
1690 ecmd
->transceiver
= XCVR_INTERNAL
;
1691 ecmd
->supported
= SUPPORTED_TP
;
1692 ecmd
->phy_address
= 0xff;
1693 ecmd
->port
= PORT_TP
;
1694 ethtool_cmd_speed_set(ecmd
, speed
);
1695 ecmd
->duplex
= duplex
? DUPLEX_FULL
: DUPLEX_HALF
;
1696 ecmd
->autoneg
= autoneg
? AUTONEG_ENABLE
: AUTONEG_DISABLE
;
1702 rocker_cmd_get_port_settings_macaddr_proc(const struct rocker_port
*rocker_port
,
1703 const struct rocker_desc_info
*desc_info
,
1706 unsigned char *macaddr
= priv
;
1707 const struct rocker_tlv
*attrs
[ROCKER_TLV_CMD_MAX
+ 1];
1708 const struct rocker_tlv
*info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_MAX
+ 1];
1709 const struct rocker_tlv
*attr
;
1711 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_CMD_MAX
, desc_info
);
1712 if (!attrs
[ROCKER_TLV_CMD_INFO
])
1715 rocker_tlv_parse_nested(info_attrs
, ROCKER_TLV_CMD_PORT_SETTINGS_MAX
,
1716 attrs
[ROCKER_TLV_CMD_INFO
]);
1717 attr
= info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR
];
1721 if (rocker_tlv_len(attr
) != ETH_ALEN
)
1724 ether_addr_copy(macaddr
, rocker_tlv_data(attr
));
1734 rocker_cmd_get_port_settings_phys_name_proc(const struct rocker_port
*rocker_port
,
1735 const struct rocker_desc_info
*desc_info
,
1738 const struct rocker_tlv
*info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_MAX
+ 1];
1739 const struct rocker_tlv
*attrs
[ROCKER_TLV_CMD_MAX
+ 1];
1740 struct port_name
*name
= priv
;
1741 const struct rocker_tlv
*attr
;
1745 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_CMD_MAX
, desc_info
);
1746 if (!attrs
[ROCKER_TLV_CMD_INFO
])
1749 rocker_tlv_parse_nested(info_attrs
, ROCKER_TLV_CMD_PORT_SETTINGS_MAX
,
1750 attrs
[ROCKER_TLV_CMD_INFO
]);
1751 attr
= info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME
];
1755 len
= min_t(size_t, rocker_tlv_len(attr
), name
->len
);
1756 str
= rocker_tlv_data(attr
);
1758 /* make sure name only contains alphanumeric characters */
1759 for (i
= j
= 0; i
< len
; ++i
) {
1760 if (isalnum(str
[i
])) {
1761 name
->buf
[j
] = str
[i
];
1769 name
->buf
[j
] = '\0';
1775 rocker_cmd_set_port_settings_ethtool_prep(const struct rocker_port
*rocker_port
,
1776 struct rocker_desc_info
*desc_info
,
1779 struct ethtool_cmd
*ecmd
= priv
;
1780 struct rocker_tlv
*cmd_info
;
1782 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
1783 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS
))
1785 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
1788 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT
,
1789 rocker_port
->pport
))
1791 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED
,
1792 ethtool_cmd_speed(ecmd
)))
1794 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX
,
1797 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG
,
1800 rocker_tlv_nest_end(desc_info
, cmd_info
);
1805 rocker_cmd_set_port_settings_macaddr_prep(const struct rocker_port
*rocker_port
,
1806 struct rocker_desc_info
*desc_info
,
1809 const unsigned char *macaddr
= priv
;
1810 struct rocker_tlv
*cmd_info
;
1812 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
1813 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS
))
1815 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
1818 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT
,
1819 rocker_port
->pport
))
1821 if (rocker_tlv_put(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR
,
1824 rocker_tlv_nest_end(desc_info
, cmd_info
);
1829 rocker_cmd_set_port_settings_mtu_prep(const struct rocker_port
*rocker_port
,
1830 struct rocker_desc_info
*desc_info
,
1833 int mtu
= *(int *)priv
;
1834 struct rocker_tlv
*cmd_info
;
1836 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
1837 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS
))
1839 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
1842 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT
,
1843 rocker_port
->pport
))
1845 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_MTU
,
1848 rocker_tlv_nest_end(desc_info
, cmd_info
);
1853 rocker_cmd_set_port_learning_prep(const struct rocker_port
*rocker_port
,
1854 struct rocker_desc_info
*desc_info
,
1857 struct rocker_tlv
*cmd_info
;
1859 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
1860 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS
))
1862 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
1865 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT
,
1866 rocker_port
->pport
))
1868 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING
,
1869 !!(rocker_port
->brport_flags
& BR_LEARNING
)))
1871 rocker_tlv_nest_end(desc_info
, cmd_info
);
1875 static int rocker_cmd_get_port_settings_ethtool(struct rocker_port
*rocker_port
,
1876 struct ethtool_cmd
*ecmd
)
1878 return rocker_cmd_exec(rocker_port
, SWITCHDEV_TRANS_NONE
, 0,
1879 rocker_cmd_get_port_settings_prep
, NULL
,
1880 rocker_cmd_get_port_settings_ethtool_proc
,
1884 static int rocker_cmd_get_port_settings_macaddr(struct rocker_port
*rocker_port
,
1885 unsigned char *macaddr
)
1887 return rocker_cmd_exec(rocker_port
, SWITCHDEV_TRANS_NONE
, 0,
1888 rocker_cmd_get_port_settings_prep
, NULL
,
1889 rocker_cmd_get_port_settings_macaddr_proc
,
1893 static int rocker_cmd_set_port_settings_ethtool(struct rocker_port
*rocker_port
,
1894 struct ethtool_cmd
*ecmd
)
1896 return rocker_cmd_exec(rocker_port
, SWITCHDEV_TRANS_NONE
, 0,
1897 rocker_cmd_set_port_settings_ethtool_prep
,
1901 static int rocker_cmd_set_port_settings_macaddr(struct rocker_port
*rocker_port
,
1902 unsigned char *macaddr
)
1904 return rocker_cmd_exec(rocker_port
, SWITCHDEV_TRANS_NONE
, 0,
1905 rocker_cmd_set_port_settings_macaddr_prep
,
1906 macaddr
, NULL
, NULL
);
1909 static int rocker_cmd_set_port_settings_mtu(struct rocker_port
*rocker_port
,
1912 return rocker_cmd_exec(rocker_port
, SWITCHDEV_TRANS_NONE
, 0,
1913 rocker_cmd_set_port_settings_mtu_prep
,
1917 static int rocker_port_set_learning(struct rocker_port
*rocker_port
,
1918 enum switchdev_trans trans
)
1920 return rocker_cmd_exec(rocker_port
, trans
, 0,
1921 rocker_cmd_set_port_learning_prep
,
1926 rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info
*desc_info
,
1927 const struct rocker_flow_tbl_entry
*entry
)
1929 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT
,
1930 entry
->key
.ig_port
.in_pport
))
1932 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT_MASK
,
1933 entry
->key
.ig_port
.in_pport_mask
))
1935 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
1936 entry
->key
.ig_port
.goto_tbl
))
1943 rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info
*desc_info
,
1944 const struct rocker_flow_tbl_entry
*entry
)
1946 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT
,
1947 entry
->key
.vlan
.in_pport
))
1949 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
1950 entry
->key
.vlan
.vlan_id
))
1952 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID_MASK
,
1953 entry
->key
.vlan
.vlan_id_mask
))
1955 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
1956 entry
->key
.vlan
.goto_tbl
))
1958 if (entry
->key
.vlan
.untagged
&&
1959 rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_NEW_VLAN_ID
,
1960 entry
->key
.vlan
.new_vlan_id
))
1967 rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info
*desc_info
,
1968 const struct rocker_flow_tbl_entry
*entry
)
1970 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT
,
1971 entry
->key
.term_mac
.in_pport
))
1973 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT_MASK
,
1974 entry
->key
.term_mac
.in_pport_mask
))
1976 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_ETHERTYPE
,
1977 entry
->key
.term_mac
.eth_type
))
1979 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
1980 ETH_ALEN
, entry
->key
.term_mac
.eth_dst
))
1982 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC_MASK
,
1983 ETH_ALEN
, entry
->key
.term_mac
.eth_dst_mask
))
1985 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
1986 entry
->key
.term_mac
.vlan_id
))
1988 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID_MASK
,
1989 entry
->key
.term_mac
.vlan_id_mask
))
1991 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
1992 entry
->key
.term_mac
.goto_tbl
))
1994 if (entry
->key
.term_mac
.copy_to_cpu
&&
1995 rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION
,
1996 entry
->key
.term_mac
.copy_to_cpu
))
2003 rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info
*desc_info
,
2004 const struct rocker_flow_tbl_entry
*entry
)
2006 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_ETHERTYPE
,
2007 entry
->key
.ucast_routing
.eth_type
))
2009 if (rocker_tlv_put_be32(desc_info
, ROCKER_TLV_OF_DPA_DST_IP
,
2010 entry
->key
.ucast_routing
.dst4
))
2012 if (rocker_tlv_put_be32(desc_info
, ROCKER_TLV_OF_DPA_DST_IP_MASK
,
2013 entry
->key
.ucast_routing
.dst4_mask
))
2015 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
2016 entry
->key
.ucast_routing
.goto_tbl
))
2018 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
2019 entry
->key
.ucast_routing
.group_id
))
2026 rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info
*desc_info
,
2027 const struct rocker_flow_tbl_entry
*entry
)
2029 if (entry
->key
.bridge
.has_eth_dst
&&
2030 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
2031 ETH_ALEN
, entry
->key
.bridge
.eth_dst
))
2033 if (entry
->key
.bridge
.has_eth_dst_mask
&&
2034 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC_MASK
,
2035 ETH_ALEN
, entry
->key
.bridge
.eth_dst_mask
))
2037 if (entry
->key
.bridge
.vlan_id
&&
2038 rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
2039 entry
->key
.bridge
.vlan_id
))
2041 if (entry
->key
.bridge
.tunnel_id
&&
2042 rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_TUNNEL_ID
,
2043 entry
->key
.bridge
.tunnel_id
))
2045 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
2046 entry
->key
.bridge
.goto_tbl
))
2048 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
2049 entry
->key
.bridge
.group_id
))
2051 if (entry
->key
.bridge
.copy_to_cpu
&&
2052 rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION
,
2053 entry
->key
.bridge
.copy_to_cpu
))
2060 rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info
*desc_info
,
2061 const struct rocker_flow_tbl_entry
*entry
)
2063 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT
,
2064 entry
->key
.acl
.in_pport
))
2066 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT_MASK
,
2067 entry
->key
.acl
.in_pport_mask
))
2069 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_SRC_MAC
,
2070 ETH_ALEN
, entry
->key
.acl
.eth_src
))
2072 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_SRC_MAC_MASK
,
2073 ETH_ALEN
, entry
->key
.acl
.eth_src_mask
))
2075 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
2076 ETH_ALEN
, entry
->key
.acl
.eth_dst
))
2078 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC_MASK
,
2079 ETH_ALEN
, entry
->key
.acl
.eth_dst_mask
))
2081 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_ETHERTYPE
,
2082 entry
->key
.acl
.eth_type
))
2084 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
2085 entry
->key
.acl
.vlan_id
))
2087 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID_MASK
,
2088 entry
->key
.acl
.vlan_id_mask
))
2091 switch (ntohs(entry
->key
.acl
.eth_type
)) {
2094 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_IP_PROTO
,
2095 entry
->key
.acl
.ip_proto
))
2097 if (rocker_tlv_put_u8(desc_info
,
2098 ROCKER_TLV_OF_DPA_IP_PROTO_MASK
,
2099 entry
->key
.acl
.ip_proto_mask
))
2101 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_IP_DSCP
,
2102 entry
->key
.acl
.ip_tos
& 0x3f))
2104 if (rocker_tlv_put_u8(desc_info
,
2105 ROCKER_TLV_OF_DPA_IP_DSCP_MASK
,
2106 entry
->key
.acl
.ip_tos_mask
& 0x3f))
2108 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_IP_ECN
,
2109 (entry
->key
.acl
.ip_tos
& 0xc0) >> 6))
2111 if (rocker_tlv_put_u8(desc_info
,
2112 ROCKER_TLV_OF_DPA_IP_ECN_MASK
,
2113 (entry
->key
.acl
.ip_tos_mask
& 0xc0) >> 6))
2118 if (entry
->key
.acl
.group_id
!= ROCKER_GROUP_NONE
&&
2119 rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
2120 entry
->key
.acl
.group_id
))
2126 static int rocker_cmd_flow_tbl_add(const struct rocker_port
*rocker_port
,
2127 struct rocker_desc_info
*desc_info
,
2130 const struct rocker_flow_tbl_entry
*entry
= priv
;
2131 struct rocker_tlv
*cmd_info
;
2134 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
, entry
->cmd
))
2136 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
2139 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_TABLE_ID
,
2142 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_PRIORITY
,
2143 entry
->key
.priority
))
2145 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_HARDTIME
, 0))
2147 if (rocker_tlv_put_u64(desc_info
, ROCKER_TLV_OF_DPA_COOKIE
,
2151 switch (entry
->key
.tbl_id
) {
2152 case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT
:
2153 err
= rocker_cmd_flow_tbl_add_ig_port(desc_info
, entry
);
2155 case ROCKER_OF_DPA_TABLE_ID_VLAN
:
2156 err
= rocker_cmd_flow_tbl_add_vlan(desc_info
, entry
);
2158 case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC
:
2159 err
= rocker_cmd_flow_tbl_add_term_mac(desc_info
, entry
);
2161 case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING
:
2162 err
= rocker_cmd_flow_tbl_add_ucast_routing(desc_info
, entry
);
2164 case ROCKER_OF_DPA_TABLE_ID_BRIDGING
:
2165 err
= rocker_cmd_flow_tbl_add_bridge(desc_info
, entry
);
2167 case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
:
2168 err
= rocker_cmd_flow_tbl_add_acl(desc_info
, entry
);
2178 rocker_tlv_nest_end(desc_info
, cmd_info
);
2183 static int rocker_cmd_flow_tbl_del(const struct rocker_port
*rocker_port
,
2184 struct rocker_desc_info
*desc_info
,
2187 const struct rocker_flow_tbl_entry
*entry
= priv
;
2188 struct rocker_tlv
*cmd_info
;
2190 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
, entry
->cmd
))
2192 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
2195 if (rocker_tlv_put_u64(desc_info
, ROCKER_TLV_OF_DPA_COOKIE
,
2198 rocker_tlv_nest_end(desc_info
, cmd_info
);
2204 rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info
*desc_info
,
2205 struct rocker_group_tbl_entry
*entry
)
2207 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_OUT_PPORT
,
2208 ROCKER_GROUP_PORT_GET(entry
->group_id
)))
2210 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_POP_VLAN
,
2211 entry
->l2_interface
.pop_vlan
))
2218 rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info
*desc_info
,
2219 const struct rocker_group_tbl_entry
*entry
)
2221 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER
,
2222 entry
->l2_rewrite
.group_id
))
2224 if (!is_zero_ether_addr(entry
->l2_rewrite
.eth_src
) &&
2225 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_SRC_MAC
,
2226 ETH_ALEN
, entry
->l2_rewrite
.eth_src
))
2228 if (!is_zero_ether_addr(entry
->l2_rewrite
.eth_dst
) &&
2229 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
2230 ETH_ALEN
, entry
->l2_rewrite
.eth_dst
))
2232 if (entry
->l2_rewrite
.vlan_id
&&
2233 rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
2234 entry
->l2_rewrite
.vlan_id
))
2241 rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info
*desc_info
,
2242 const struct rocker_group_tbl_entry
*entry
)
2245 struct rocker_tlv
*group_ids
;
2247 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GROUP_COUNT
,
2248 entry
->group_count
))
2251 group_ids
= rocker_tlv_nest_start(desc_info
,
2252 ROCKER_TLV_OF_DPA_GROUP_IDS
);
2256 for (i
= 0; i
< entry
->group_count
; i
++)
2257 /* Note TLV array is 1-based */
2258 if (rocker_tlv_put_u32(desc_info
, i
+ 1, entry
->group_ids
[i
]))
2261 rocker_tlv_nest_end(desc_info
, group_ids
);
2267 rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info
*desc_info
,
2268 const struct rocker_group_tbl_entry
*entry
)
2270 if (!is_zero_ether_addr(entry
->l3_unicast
.eth_src
) &&
2271 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_SRC_MAC
,
2272 ETH_ALEN
, entry
->l3_unicast
.eth_src
))
2274 if (!is_zero_ether_addr(entry
->l3_unicast
.eth_dst
) &&
2275 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
2276 ETH_ALEN
, entry
->l3_unicast
.eth_dst
))
2278 if (entry
->l3_unicast
.vlan_id
&&
2279 rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
2280 entry
->l3_unicast
.vlan_id
))
2282 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_TTL_CHECK
,
2283 entry
->l3_unicast
.ttl_check
))
2285 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER
,
2286 entry
->l3_unicast
.group_id
))
2292 static int rocker_cmd_group_tbl_add(const struct rocker_port
*rocker_port
,
2293 struct rocker_desc_info
*desc_info
,
2296 struct rocker_group_tbl_entry
*entry
= priv
;
2297 struct rocker_tlv
*cmd_info
;
2300 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
, entry
->cmd
))
2302 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
2306 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
2310 switch (ROCKER_GROUP_TYPE_GET(entry
->group_id
)) {
2311 case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE
:
2312 err
= rocker_cmd_group_tbl_add_l2_interface(desc_info
, entry
);
2314 case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE
:
2315 err
= rocker_cmd_group_tbl_add_l2_rewrite(desc_info
, entry
);
2317 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD
:
2318 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST
:
2319 err
= rocker_cmd_group_tbl_add_group_ids(desc_info
, entry
);
2321 case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST
:
2322 err
= rocker_cmd_group_tbl_add_l3_unicast(desc_info
, entry
);
2332 rocker_tlv_nest_end(desc_info
, cmd_info
);
2337 static int rocker_cmd_group_tbl_del(const struct rocker_port
*rocker_port
,
2338 struct rocker_desc_info
*desc_info
,
2341 const struct rocker_group_tbl_entry
*entry
= priv
;
2342 struct rocker_tlv
*cmd_info
;
2344 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
, entry
->cmd
))
2346 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
2349 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
2352 rocker_tlv_nest_end(desc_info
, cmd_info
);
2357 /***************************************************
2358 * Flow, group, FDB, internal VLAN and neigh tables
2359 ***************************************************/
2361 static int rocker_init_tbls(struct rocker
*rocker
)
2363 hash_init(rocker
->flow_tbl
);
2364 spin_lock_init(&rocker
->flow_tbl_lock
);
2366 hash_init(rocker
->group_tbl
);
2367 spin_lock_init(&rocker
->group_tbl_lock
);
2369 hash_init(rocker
->fdb_tbl
);
2370 spin_lock_init(&rocker
->fdb_tbl_lock
);
2372 hash_init(rocker
->internal_vlan_tbl
);
2373 spin_lock_init(&rocker
->internal_vlan_tbl_lock
);
2375 hash_init(rocker
->neigh_tbl
);
2376 spin_lock_init(&rocker
->neigh_tbl_lock
);
2381 static void rocker_free_tbls(struct rocker
*rocker
)
2383 unsigned long flags
;
2384 struct rocker_flow_tbl_entry
*flow_entry
;
2385 struct rocker_group_tbl_entry
*group_entry
;
2386 struct rocker_fdb_tbl_entry
*fdb_entry
;
2387 struct rocker_internal_vlan_tbl_entry
*internal_vlan_entry
;
2388 struct rocker_neigh_tbl_entry
*neigh_entry
;
2389 struct hlist_node
*tmp
;
2392 spin_lock_irqsave(&rocker
->flow_tbl_lock
, flags
);
2393 hash_for_each_safe(rocker
->flow_tbl
, bkt
, tmp
, flow_entry
, entry
)
2394 hash_del(&flow_entry
->entry
);
2395 spin_unlock_irqrestore(&rocker
->flow_tbl_lock
, flags
);
2397 spin_lock_irqsave(&rocker
->group_tbl_lock
, flags
);
2398 hash_for_each_safe(rocker
->group_tbl
, bkt
, tmp
, group_entry
, entry
)
2399 hash_del(&group_entry
->entry
);
2400 spin_unlock_irqrestore(&rocker
->group_tbl_lock
, flags
);
2402 spin_lock_irqsave(&rocker
->fdb_tbl_lock
, flags
);
2403 hash_for_each_safe(rocker
->fdb_tbl
, bkt
, tmp
, fdb_entry
, entry
)
2404 hash_del(&fdb_entry
->entry
);
2405 spin_unlock_irqrestore(&rocker
->fdb_tbl_lock
, flags
);
2407 spin_lock_irqsave(&rocker
->internal_vlan_tbl_lock
, flags
);
2408 hash_for_each_safe(rocker
->internal_vlan_tbl
, bkt
,
2409 tmp
, internal_vlan_entry
, entry
)
2410 hash_del(&internal_vlan_entry
->entry
);
2411 spin_unlock_irqrestore(&rocker
->internal_vlan_tbl_lock
, flags
);
2413 spin_lock_irqsave(&rocker
->neigh_tbl_lock
, flags
);
2414 hash_for_each_safe(rocker
->neigh_tbl
, bkt
, tmp
, neigh_entry
, entry
)
2415 hash_del(&neigh_entry
->entry
);
2416 spin_unlock_irqrestore(&rocker
->neigh_tbl_lock
, flags
);
2419 static struct rocker_flow_tbl_entry
*
2420 rocker_flow_tbl_find(const struct rocker
*rocker
,
2421 const struct rocker_flow_tbl_entry
*match
)
2423 struct rocker_flow_tbl_entry
*found
;
2424 size_t key_len
= match
->key_len
? match
->key_len
: sizeof(found
->key
);
2426 hash_for_each_possible(rocker
->flow_tbl
, found
,
2427 entry
, match
->key_crc32
) {
2428 if (memcmp(&found
->key
, &match
->key
, key_len
) == 0)
2435 static int rocker_flow_tbl_add(struct rocker_port
*rocker_port
,
2436 enum switchdev_trans trans
, int flags
,
2437 struct rocker_flow_tbl_entry
*match
)
2439 struct rocker
*rocker
= rocker_port
->rocker
;
2440 struct rocker_flow_tbl_entry
*found
;
2441 size_t key_len
= match
->key_len
? match
->key_len
: sizeof(found
->key
);
2442 unsigned long lock_flags
;
2444 match
->key_crc32
= crc32(~0, &match
->key
, key_len
);
2446 spin_lock_irqsave(&rocker
->flow_tbl_lock
, lock_flags
);
2448 found
= rocker_flow_tbl_find(rocker
, match
);
2451 match
->cookie
= found
->cookie
;
2452 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
2453 hash_del(&found
->entry
);
2454 rocker_port_kfree(trans
, found
);
2456 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD
;
2459 found
->cookie
= rocker
->flow_tbl_next_cookie
++;
2460 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD
;
2463 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
2464 hash_add(rocker
->flow_tbl
, &found
->entry
, found
->key_crc32
);
2466 spin_unlock_irqrestore(&rocker
->flow_tbl_lock
, lock_flags
);
2468 return rocker_cmd_exec(rocker_port
, trans
, flags
,
2469 rocker_cmd_flow_tbl_add
, found
, NULL
, NULL
);
2472 static int rocker_flow_tbl_del(struct rocker_port
*rocker_port
,
2473 enum switchdev_trans trans
, int flags
,
2474 struct rocker_flow_tbl_entry
*match
)
2476 struct rocker
*rocker
= rocker_port
->rocker
;
2477 struct rocker_flow_tbl_entry
*found
;
2478 size_t key_len
= match
->key_len
? match
->key_len
: sizeof(found
->key
);
2479 unsigned long lock_flags
;
2482 match
->key_crc32
= crc32(~0, &match
->key
, key_len
);
2484 spin_lock_irqsave(&rocker
->flow_tbl_lock
, lock_flags
);
2486 found
= rocker_flow_tbl_find(rocker
, match
);
2489 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
2490 hash_del(&found
->entry
);
2491 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL
;
2494 spin_unlock_irqrestore(&rocker
->flow_tbl_lock
, lock_flags
);
2496 rocker_port_kfree(trans
, match
);
2499 err
= rocker_cmd_exec(rocker_port
, trans
, flags
,
2500 rocker_cmd_flow_tbl_del
,
2502 rocker_port_kfree(trans
, found
);
2508 static int rocker_flow_tbl_do(struct rocker_port
*rocker_port
,
2509 enum switchdev_trans trans
, int flags
,
2510 struct rocker_flow_tbl_entry
*entry
)
2512 if (flags
& ROCKER_OP_FLAG_REMOVE
)
2513 return rocker_flow_tbl_del(rocker_port
, trans
, flags
, entry
);
2515 return rocker_flow_tbl_add(rocker_port
, trans
, flags
, entry
);
2518 static int rocker_flow_tbl_ig_port(struct rocker_port
*rocker_port
,
2519 enum switchdev_trans trans
, int flags
,
2520 u32 in_pport
, u32 in_pport_mask
,
2521 enum rocker_of_dpa_table_id goto_tbl
)
2523 struct rocker_flow_tbl_entry
*entry
;
2525 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2529 entry
->key
.priority
= ROCKER_PRIORITY_IG_PORT
;
2530 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT
;
2531 entry
->key
.ig_port
.in_pport
= in_pport
;
2532 entry
->key
.ig_port
.in_pport_mask
= in_pport_mask
;
2533 entry
->key
.ig_port
.goto_tbl
= goto_tbl
;
2535 return rocker_flow_tbl_do(rocker_port
, trans
, flags
, entry
);
2538 static int rocker_flow_tbl_vlan(struct rocker_port
*rocker_port
,
2539 enum switchdev_trans trans
, int flags
,
2540 u32 in_pport
, __be16 vlan_id
,
2541 __be16 vlan_id_mask
,
2542 enum rocker_of_dpa_table_id goto_tbl
,
2543 bool untagged
, __be16 new_vlan_id
)
2545 struct rocker_flow_tbl_entry
*entry
;
2547 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2551 entry
->key
.priority
= ROCKER_PRIORITY_VLAN
;
2552 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_VLAN
;
2553 entry
->key
.vlan
.in_pport
= in_pport
;
2554 entry
->key
.vlan
.vlan_id
= vlan_id
;
2555 entry
->key
.vlan
.vlan_id_mask
= vlan_id_mask
;
2556 entry
->key
.vlan
.goto_tbl
= goto_tbl
;
2558 entry
->key
.vlan
.untagged
= untagged
;
2559 entry
->key
.vlan
.new_vlan_id
= new_vlan_id
;
2561 return rocker_flow_tbl_do(rocker_port
, trans
, flags
, entry
);
2564 static int rocker_flow_tbl_term_mac(struct rocker_port
*rocker_port
,
2565 enum switchdev_trans trans
,
2566 u32 in_pport
, u32 in_pport_mask
,
2567 __be16 eth_type
, const u8
*eth_dst
,
2568 const u8
*eth_dst_mask
, __be16 vlan_id
,
2569 __be16 vlan_id_mask
, bool copy_to_cpu
,
2572 struct rocker_flow_tbl_entry
*entry
;
2574 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2578 if (is_multicast_ether_addr(eth_dst
)) {
2579 entry
->key
.priority
= ROCKER_PRIORITY_TERM_MAC_MCAST
;
2580 entry
->key
.term_mac
.goto_tbl
=
2581 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING
;
2583 entry
->key
.priority
= ROCKER_PRIORITY_TERM_MAC_UCAST
;
2584 entry
->key
.term_mac
.goto_tbl
=
2585 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING
;
2588 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC
;
2589 entry
->key
.term_mac
.in_pport
= in_pport
;
2590 entry
->key
.term_mac
.in_pport_mask
= in_pport_mask
;
2591 entry
->key
.term_mac
.eth_type
= eth_type
;
2592 ether_addr_copy(entry
->key
.term_mac
.eth_dst
, eth_dst
);
2593 ether_addr_copy(entry
->key
.term_mac
.eth_dst_mask
, eth_dst_mask
);
2594 entry
->key
.term_mac
.vlan_id
= vlan_id
;
2595 entry
->key
.term_mac
.vlan_id_mask
= vlan_id_mask
;
2596 entry
->key
.term_mac
.copy_to_cpu
= copy_to_cpu
;
2598 return rocker_flow_tbl_do(rocker_port
, trans
, flags
, entry
);
2601 static int rocker_flow_tbl_bridge(struct rocker_port
*rocker_port
,
2602 enum switchdev_trans trans
, int flags
,
2603 const u8
*eth_dst
, const u8
*eth_dst_mask
,
2604 __be16 vlan_id
, u32 tunnel_id
,
2605 enum rocker_of_dpa_table_id goto_tbl
,
2606 u32 group_id
, bool copy_to_cpu
)
2608 struct rocker_flow_tbl_entry
*entry
;
2610 bool vlan_bridging
= !!vlan_id
;
2611 bool dflt
= !eth_dst
|| (eth_dst
&& eth_dst_mask
);
2614 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2618 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_BRIDGING
;
2621 entry
->key
.bridge
.has_eth_dst
= 1;
2622 ether_addr_copy(entry
->key
.bridge
.eth_dst
, eth_dst
);
2625 entry
->key
.bridge
.has_eth_dst_mask
= 1;
2626 ether_addr_copy(entry
->key
.bridge
.eth_dst_mask
, eth_dst_mask
);
2627 if (!ether_addr_equal(eth_dst_mask
, ff_mac
))
2631 priority
= ROCKER_PRIORITY_UNKNOWN
;
2632 if (vlan_bridging
&& dflt
&& wild
)
2633 priority
= ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD
;
2634 else if (vlan_bridging
&& dflt
&& !wild
)
2635 priority
= ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT
;
2636 else if (vlan_bridging
&& !dflt
)
2637 priority
= ROCKER_PRIORITY_BRIDGING_VLAN
;
2638 else if (!vlan_bridging
&& dflt
&& wild
)
2639 priority
= ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD
;
2640 else if (!vlan_bridging
&& dflt
&& !wild
)
2641 priority
= ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT
;
2642 else if (!vlan_bridging
&& !dflt
)
2643 priority
= ROCKER_PRIORITY_BRIDGING_TENANT
;
2645 entry
->key
.priority
= priority
;
2646 entry
->key
.bridge
.vlan_id
= vlan_id
;
2647 entry
->key
.bridge
.tunnel_id
= tunnel_id
;
2648 entry
->key
.bridge
.goto_tbl
= goto_tbl
;
2649 entry
->key
.bridge
.group_id
= group_id
;
2650 entry
->key
.bridge
.copy_to_cpu
= copy_to_cpu
;
2652 return rocker_flow_tbl_do(rocker_port
, trans
, flags
, entry
);
2655 static int rocker_flow_tbl_ucast4_routing(struct rocker_port
*rocker_port
,
2656 enum switchdev_trans trans
,
2657 __be16 eth_type
, __be32 dst
,
2658 __be32 dst_mask
, u32 priority
,
2659 enum rocker_of_dpa_table_id goto_tbl
,
2660 u32 group_id
, int flags
)
2662 struct rocker_flow_tbl_entry
*entry
;
2664 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2668 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING
;
2669 entry
->key
.priority
= priority
;
2670 entry
->key
.ucast_routing
.eth_type
= eth_type
;
2671 entry
->key
.ucast_routing
.dst4
= dst
;
2672 entry
->key
.ucast_routing
.dst4_mask
= dst_mask
;
2673 entry
->key
.ucast_routing
.goto_tbl
= goto_tbl
;
2674 entry
->key
.ucast_routing
.group_id
= group_id
;
2675 entry
->key_len
= offsetof(struct rocker_flow_tbl_key
,
2676 ucast_routing
.group_id
);
2678 return rocker_flow_tbl_do(rocker_port
, trans
, flags
, entry
);
2681 static int rocker_flow_tbl_acl(struct rocker_port
*rocker_port
,
2682 enum switchdev_trans trans
, int flags
,
2683 u32 in_pport
, u32 in_pport_mask
,
2684 const u8
*eth_src
, const u8
*eth_src_mask
,
2685 const u8
*eth_dst
, const u8
*eth_dst_mask
,
2686 __be16 eth_type
, __be16 vlan_id
,
2687 __be16 vlan_id_mask
, u8 ip_proto
,
2688 u8 ip_proto_mask
, u8 ip_tos
, u8 ip_tos_mask
,
2692 struct rocker_flow_tbl_entry
*entry
;
2694 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2698 priority
= ROCKER_PRIORITY_ACL_NORMAL
;
2699 if (eth_dst
&& eth_dst_mask
) {
2700 if (ether_addr_equal(eth_dst_mask
, mcast_mac
))
2701 priority
= ROCKER_PRIORITY_ACL_DFLT
;
2702 else if (is_link_local_ether_addr(eth_dst
))
2703 priority
= ROCKER_PRIORITY_ACL_CTRL
;
2706 entry
->key
.priority
= priority
;
2707 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
2708 entry
->key
.acl
.in_pport
= in_pport
;
2709 entry
->key
.acl
.in_pport_mask
= in_pport_mask
;
2712 ether_addr_copy(entry
->key
.acl
.eth_src
, eth_src
);
2714 ether_addr_copy(entry
->key
.acl
.eth_src_mask
, eth_src_mask
);
2716 ether_addr_copy(entry
->key
.acl
.eth_dst
, eth_dst
);
2718 ether_addr_copy(entry
->key
.acl
.eth_dst_mask
, eth_dst_mask
);
2720 entry
->key
.acl
.eth_type
= eth_type
;
2721 entry
->key
.acl
.vlan_id
= vlan_id
;
2722 entry
->key
.acl
.vlan_id_mask
= vlan_id_mask
;
2723 entry
->key
.acl
.ip_proto
= ip_proto
;
2724 entry
->key
.acl
.ip_proto_mask
= ip_proto_mask
;
2725 entry
->key
.acl
.ip_tos
= ip_tos
;
2726 entry
->key
.acl
.ip_tos_mask
= ip_tos_mask
;
2727 entry
->key
.acl
.group_id
= group_id
;
2729 return rocker_flow_tbl_do(rocker_port
, trans
, flags
, entry
);
2732 static struct rocker_group_tbl_entry
*
2733 rocker_group_tbl_find(const struct rocker
*rocker
,
2734 const struct rocker_group_tbl_entry
*match
)
2736 struct rocker_group_tbl_entry
*found
;
2738 hash_for_each_possible(rocker
->group_tbl
, found
,
2739 entry
, match
->group_id
) {
2740 if (found
->group_id
== match
->group_id
)
2747 static void rocker_group_tbl_entry_free(enum switchdev_trans trans
,
2748 struct rocker_group_tbl_entry
*entry
)
2750 switch (ROCKER_GROUP_TYPE_GET(entry
->group_id
)) {
2751 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD
:
2752 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST
:
2753 rocker_port_kfree(trans
, entry
->group_ids
);
2758 rocker_port_kfree(trans
, entry
);
2761 static int rocker_group_tbl_add(struct rocker_port
*rocker_port
,
2762 enum switchdev_trans trans
, int flags
,
2763 struct rocker_group_tbl_entry
*match
)
2765 struct rocker
*rocker
= rocker_port
->rocker
;
2766 struct rocker_group_tbl_entry
*found
;
2767 unsigned long lock_flags
;
2769 spin_lock_irqsave(&rocker
->group_tbl_lock
, lock_flags
);
2771 found
= rocker_group_tbl_find(rocker
, match
);
2774 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
2775 hash_del(&found
->entry
);
2776 rocker_group_tbl_entry_free(trans
, found
);
2778 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD
;
2781 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD
;
2784 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
2785 hash_add(rocker
->group_tbl
, &found
->entry
, found
->group_id
);
2787 spin_unlock_irqrestore(&rocker
->group_tbl_lock
, lock_flags
);
2789 return rocker_cmd_exec(rocker_port
, trans
, flags
,
2790 rocker_cmd_group_tbl_add
, found
, NULL
, NULL
);
2793 static int rocker_group_tbl_del(struct rocker_port
*rocker_port
,
2794 enum switchdev_trans trans
, int flags
,
2795 struct rocker_group_tbl_entry
*match
)
2797 struct rocker
*rocker
= rocker_port
->rocker
;
2798 struct rocker_group_tbl_entry
*found
;
2799 unsigned long lock_flags
;
2802 spin_lock_irqsave(&rocker
->group_tbl_lock
, lock_flags
);
2804 found
= rocker_group_tbl_find(rocker
, match
);
2807 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
2808 hash_del(&found
->entry
);
2809 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL
;
2812 spin_unlock_irqrestore(&rocker
->group_tbl_lock
, lock_flags
);
2814 rocker_group_tbl_entry_free(trans
, match
);
2817 err
= rocker_cmd_exec(rocker_port
, trans
, flags
,
2818 rocker_cmd_group_tbl_del
,
2820 rocker_group_tbl_entry_free(trans
, found
);
2826 static int rocker_group_tbl_do(struct rocker_port
*rocker_port
,
2827 enum switchdev_trans trans
, int flags
,
2828 struct rocker_group_tbl_entry
*entry
)
2830 if (flags
& ROCKER_OP_FLAG_REMOVE
)
2831 return rocker_group_tbl_del(rocker_port
, trans
, flags
, entry
);
2833 return rocker_group_tbl_add(rocker_port
, trans
, flags
, entry
);
2836 static int rocker_group_l2_interface(struct rocker_port
*rocker_port
,
2837 enum switchdev_trans trans
, int flags
,
2838 __be16 vlan_id
, u32 out_pport
,
2841 struct rocker_group_tbl_entry
*entry
;
2843 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2847 entry
->group_id
= ROCKER_GROUP_L2_INTERFACE(vlan_id
, out_pport
);
2848 entry
->l2_interface
.pop_vlan
= pop_vlan
;
2850 return rocker_group_tbl_do(rocker_port
, trans
, flags
, entry
);
2853 static int rocker_group_l2_fan_out(struct rocker_port
*rocker_port
,
2854 enum switchdev_trans trans
,
2855 int flags
, u8 group_count
,
2856 const u32
*group_ids
, u32 group_id
)
2858 struct rocker_group_tbl_entry
*entry
;
2860 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2864 entry
->group_id
= group_id
;
2865 entry
->group_count
= group_count
;
2867 entry
->group_ids
= rocker_port_kcalloc(rocker_port
, trans
, flags
,
2868 group_count
, sizeof(u32
));
2869 if (!entry
->group_ids
) {
2870 rocker_port_kfree(trans
, entry
);
2873 memcpy(entry
->group_ids
, group_ids
, group_count
* sizeof(u32
));
2875 return rocker_group_tbl_do(rocker_port
, trans
, flags
, entry
);
2878 static int rocker_group_l2_flood(struct rocker_port
*rocker_port
,
2879 enum switchdev_trans trans
, int flags
,
2880 __be16 vlan_id
, u8 group_count
,
2881 const u32
*group_ids
, u32 group_id
)
2883 return rocker_group_l2_fan_out(rocker_port
, trans
, flags
,
2884 group_count
, group_ids
,
2888 static int rocker_group_l3_unicast(struct rocker_port
*rocker_port
,
2889 enum switchdev_trans trans
, int flags
,
2890 u32 index
, const u8
*src_mac
, const u8
*dst_mac
,
2891 __be16 vlan_id
, bool ttl_check
, u32 pport
)
2893 struct rocker_group_tbl_entry
*entry
;
2895 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2899 entry
->group_id
= ROCKER_GROUP_L3_UNICAST(index
);
2901 ether_addr_copy(entry
->l3_unicast
.eth_src
, src_mac
);
2903 ether_addr_copy(entry
->l3_unicast
.eth_dst
, dst_mac
);
2904 entry
->l3_unicast
.vlan_id
= vlan_id
;
2905 entry
->l3_unicast
.ttl_check
= ttl_check
;
2906 entry
->l3_unicast
.group_id
= ROCKER_GROUP_L2_INTERFACE(vlan_id
, pport
);
2908 return rocker_group_tbl_do(rocker_port
, trans
, flags
, entry
);
2911 static struct rocker_neigh_tbl_entry
*
2912 rocker_neigh_tbl_find(const struct rocker
*rocker
, __be32 ip_addr
)
2914 struct rocker_neigh_tbl_entry
*found
;
2916 hash_for_each_possible(rocker
->neigh_tbl
, found
,
2917 entry
, be32_to_cpu(ip_addr
))
2918 if (found
->ip_addr
== ip_addr
)
2924 static void _rocker_neigh_add(struct rocker
*rocker
,
2925 enum switchdev_trans trans
,
2926 struct rocker_neigh_tbl_entry
*entry
)
2928 if (trans
!= SWITCHDEV_TRANS_COMMIT
)
2929 entry
->index
= rocker
->neigh_tbl_next_index
++;
2930 if (trans
== SWITCHDEV_TRANS_PREPARE
)
2933 hash_add(rocker
->neigh_tbl
, &entry
->entry
,
2934 be32_to_cpu(entry
->ip_addr
));
2937 static void _rocker_neigh_del(enum switchdev_trans trans
,
2938 struct rocker_neigh_tbl_entry
*entry
)
2940 if (trans
== SWITCHDEV_TRANS_PREPARE
)
2942 if (--entry
->ref_count
== 0) {
2943 hash_del(&entry
->entry
);
2944 rocker_port_kfree(trans
, entry
);
2948 static void _rocker_neigh_update(struct rocker_neigh_tbl_entry
*entry
,
2949 enum switchdev_trans trans
,
2950 const u8
*eth_dst
, bool ttl_check
)
2953 ether_addr_copy(entry
->eth_dst
, eth_dst
);
2954 entry
->ttl_check
= ttl_check
;
2955 } else if (trans
!= SWITCHDEV_TRANS_PREPARE
) {
2960 static int rocker_port_ipv4_neigh(struct rocker_port
*rocker_port
,
2961 enum switchdev_trans trans
,
2962 int flags
, __be32 ip_addr
, const u8
*eth_dst
)
2964 struct rocker
*rocker
= rocker_port
->rocker
;
2965 struct rocker_neigh_tbl_entry
*entry
;
2966 struct rocker_neigh_tbl_entry
*found
;
2967 unsigned long lock_flags
;
2968 __be16 eth_type
= htons(ETH_P_IP
);
2969 enum rocker_of_dpa_table_id goto_tbl
=
2970 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
2973 bool adding
= !(flags
& ROCKER_OP_FLAG_REMOVE
);
2978 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
2982 spin_lock_irqsave(&rocker
->neigh_tbl_lock
, lock_flags
);
2984 found
= rocker_neigh_tbl_find(rocker
, ip_addr
);
2986 updating
= found
&& adding
;
2987 removing
= found
&& !adding
;
2988 adding
= !found
&& adding
;
2991 entry
->ip_addr
= ip_addr
;
2992 entry
->dev
= rocker_port
->dev
;
2993 ether_addr_copy(entry
->eth_dst
, eth_dst
);
2994 entry
->ttl_check
= true;
2995 _rocker_neigh_add(rocker
, trans
, entry
);
2996 } else if (removing
) {
2997 memcpy(entry
, found
, sizeof(*entry
));
2998 _rocker_neigh_del(trans
, found
);
2999 } else if (updating
) {
3000 _rocker_neigh_update(found
, trans
, eth_dst
, true);
3001 memcpy(entry
, found
, sizeof(*entry
));
3006 spin_unlock_irqrestore(&rocker
->neigh_tbl_lock
, lock_flags
);
3011 /* For each active neighbor, we have an L3 unicast group and
3012 * a /32 route to the neighbor, which uses the L3 unicast
3013 * group. The L3 unicast group can also be referred to by
3014 * other routes' nexthops.
3017 err
= rocker_group_l3_unicast(rocker_port
, trans
, flags
,
3019 rocker_port
->dev
->dev_addr
,
3021 rocker_port
->internal_vlan_id
,
3023 rocker_port
->pport
);
3025 netdev_err(rocker_port
->dev
,
3026 "Error (%d) L3 unicast group index %d\n",
3031 if (adding
|| removing
) {
3032 group_id
= ROCKER_GROUP_L3_UNICAST(entry
->index
);
3033 err
= rocker_flow_tbl_ucast4_routing(rocker_port
, trans
,
3040 netdev_err(rocker_port
->dev
,
3041 "Error (%d) /32 unicast route %pI4 group 0x%08x\n",
3042 err
, &entry
->ip_addr
, group_id
);
3047 rocker_port_kfree(trans
, entry
);
3052 static int rocker_port_ipv4_resolve(struct rocker_port
*rocker_port
,
3053 enum switchdev_trans trans
, __be32 ip_addr
)
3055 struct net_device
*dev
= rocker_port
->dev
;
3056 struct neighbour
*n
= __ipv4_neigh_lookup(dev
, (__force u32
)ip_addr
);
3060 n
= neigh_create(&arp_tbl
, &ip_addr
, dev
);
3065 /* If the neigh is already resolved, then go ahead and
3066 * install the entry, otherwise start the ARP process to
3067 * resolve the neigh.
3070 if (n
->nud_state
& NUD_VALID
)
3071 err
= rocker_port_ipv4_neigh(rocker_port
, trans
, 0,
3074 neigh_event_send(n
, NULL
);
3080 static int rocker_port_ipv4_nh(struct rocker_port
*rocker_port
,
3081 enum switchdev_trans trans
, int flags
,
3082 __be32 ip_addr
, u32
*index
)
3084 struct rocker
*rocker
= rocker_port
->rocker
;
3085 struct rocker_neigh_tbl_entry
*entry
;
3086 struct rocker_neigh_tbl_entry
*found
;
3087 unsigned long lock_flags
;
3088 bool adding
= !(flags
& ROCKER_OP_FLAG_REMOVE
);
3091 bool resolved
= true;
3094 entry
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*entry
));
3098 spin_lock_irqsave(&rocker
->neigh_tbl_lock
, lock_flags
);
3100 found
= rocker_neigh_tbl_find(rocker
, ip_addr
);
3102 *index
= found
->index
;
3104 updating
= found
&& adding
;
3105 removing
= found
&& !adding
;
3106 adding
= !found
&& adding
;
3109 entry
->ip_addr
= ip_addr
;
3110 entry
->dev
= rocker_port
->dev
;
3111 _rocker_neigh_add(rocker
, trans
, entry
);
3112 *index
= entry
->index
;
3114 } else if (removing
) {
3115 _rocker_neigh_del(trans
, found
);
3116 } else if (updating
) {
3117 _rocker_neigh_update(found
, trans
, NULL
, false);
3118 resolved
= !is_zero_ether_addr(found
->eth_dst
);
3123 spin_unlock_irqrestore(&rocker
->neigh_tbl_lock
, lock_flags
);
3126 rocker_port_kfree(trans
, entry
);
3131 /* Resolved means neigh ip_addr is resolved to neigh mac. */
3134 err
= rocker_port_ipv4_resolve(rocker_port
, trans
, ip_addr
);
3139 static int rocker_port_vlan_flood_group(struct rocker_port
*rocker_port
,
3140 enum switchdev_trans trans
,
3141 int flags
, __be16 vlan_id
)
3143 struct rocker_port
*p
;
3144 const struct rocker
*rocker
= rocker_port
->rocker
;
3145 u32 group_id
= ROCKER_GROUP_L2_FLOOD(vlan_id
, 0);
3151 group_ids
= rocker_port_kcalloc(rocker_port
, trans
, flags
,
3152 rocker
->port_count
, sizeof(u32
));
3156 /* Adjust the flood group for this VLAN. The flood group
3157 * references an L2 interface group for each port in this
3161 for (i
= 0; i
< rocker
->port_count
; i
++) {
3162 p
= rocker
->ports
[i
];
3165 if (!rocker_port_is_bridged(p
))
3167 if (test_bit(ntohs(vlan_id
), p
->vlan_bitmap
)) {
3168 group_ids
[group_count
++] =
3169 ROCKER_GROUP_L2_INTERFACE(vlan_id
, p
->pport
);
3173 /* If there are no bridged ports in this VLAN, we're done */
3174 if (group_count
== 0)
3175 goto no_ports_in_vlan
;
3177 err
= rocker_group_l2_flood(rocker_port
, trans
, flags
, vlan_id
,
3178 group_count
, group_ids
, group_id
);
3180 netdev_err(rocker_port
->dev
,
3181 "Error (%d) port VLAN l2 flood group\n", err
);
3184 rocker_port_kfree(trans
, group_ids
);
3188 static int rocker_port_vlan_l2_groups(struct rocker_port
*rocker_port
,
3189 enum switchdev_trans trans
, int flags
,
3190 __be16 vlan_id
, bool pop_vlan
)
3192 const struct rocker
*rocker
= rocker_port
->rocker
;
3193 struct rocker_port
*p
;
3194 bool adding
= !(flags
& ROCKER_OP_FLAG_REMOVE
);
3200 /* An L2 interface group for this port in this VLAN, but
3201 * only when port STP state is LEARNING|FORWARDING.
3204 if (rocker_port
->stp_state
== BR_STATE_LEARNING
||
3205 rocker_port
->stp_state
== BR_STATE_FORWARDING
) {
3206 out_pport
= rocker_port
->pport
;
3207 err
= rocker_group_l2_interface(rocker_port
, trans
, flags
,
3208 vlan_id
, out_pport
, pop_vlan
);
3210 netdev_err(rocker_port
->dev
,
3211 "Error (%d) port VLAN l2 group for pport %d\n",
3217 /* An L2 interface group for this VLAN to CPU port.
3218 * Add when first port joins this VLAN and destroy when
3219 * last port leaves this VLAN.
3222 for (i
= 0; i
< rocker
->port_count
; i
++) {
3223 p
= rocker
->ports
[i
];
3224 if (p
&& test_bit(ntohs(vlan_id
), p
->vlan_bitmap
))
3228 if ((!adding
|| ref
!= 1) && (adding
|| ref
!= 0))
3232 err
= rocker_group_l2_interface(rocker_port
, trans
, flags
,
3233 vlan_id
, out_pport
, pop_vlan
);
3235 netdev_err(rocker_port
->dev
,
3236 "Error (%d) port VLAN l2 group for CPU port\n", err
);
3243 static struct rocker_ctrl
{
3245 const u8
*eth_dst_mask
;
3251 } rocker_ctrls
[] = {
3252 [ROCKER_CTRL_LINK_LOCAL_MCAST
] = {
3253 /* pass link local multicast pkts up to CPU for filtering */
3255 .eth_dst_mask
= ll_mask
,
3258 [ROCKER_CTRL_LOCAL_ARP
] = {
3259 /* pass local ARP pkts up to CPU */
3260 .eth_dst
= zero_mac
,
3261 .eth_dst_mask
= zero_mac
,
3262 .eth_type
= htons(ETH_P_ARP
),
3265 [ROCKER_CTRL_IPV4_MCAST
] = {
3266 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
3267 .eth_dst
= ipv4_mcast
,
3268 .eth_dst_mask
= ipv4_mask
,
3269 .eth_type
= htons(ETH_P_IP
),
3271 .copy_to_cpu
= true,
3273 [ROCKER_CTRL_IPV6_MCAST
] = {
3274 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
3275 .eth_dst
= ipv6_mcast
,
3276 .eth_dst_mask
= ipv6_mask
,
3277 .eth_type
= htons(ETH_P_IPV6
),
3279 .copy_to_cpu
= true,
3281 [ROCKER_CTRL_DFLT_BRIDGING
] = {
3282 /* flood any pkts on vlan */
3284 .copy_to_cpu
= true,
3286 [ROCKER_CTRL_DFLT_OVS
] = {
3287 /* pass all pkts up to CPU */
3288 .eth_dst
= zero_mac
,
3289 .eth_dst_mask
= zero_mac
,
3294 static int rocker_port_ctrl_vlan_acl(struct rocker_port
*rocker_port
,
3295 enum switchdev_trans trans
, int flags
,
3296 const struct rocker_ctrl
*ctrl
, __be16 vlan_id
)
3298 u32 in_pport
= rocker_port
->pport
;
3299 u32 in_pport_mask
= 0xffffffff;
3301 const u8
*eth_src
= NULL
;
3302 const u8
*eth_src_mask
= NULL
;
3303 __be16 vlan_id_mask
= htons(0xffff);
3305 u8 ip_proto_mask
= 0;
3308 u32 group_id
= ROCKER_GROUP_L2_INTERFACE(vlan_id
, out_pport
);
3311 err
= rocker_flow_tbl_acl(rocker_port
, trans
, flags
,
3312 in_pport
, in_pport_mask
,
3313 eth_src
, eth_src_mask
,
3314 ctrl
->eth_dst
, ctrl
->eth_dst_mask
,
3316 vlan_id
, vlan_id_mask
,
3317 ip_proto
, ip_proto_mask
,
3318 ip_tos
, ip_tos_mask
,
3322 netdev_err(rocker_port
->dev
, "Error (%d) ctrl ACL\n", err
);
3327 static int rocker_port_ctrl_vlan_bridge(struct rocker_port
*rocker_port
,
3328 enum switchdev_trans trans
, int flags
,
3329 const struct rocker_ctrl
*ctrl
,
3332 enum rocker_of_dpa_table_id goto_tbl
=
3333 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
3334 u32 group_id
= ROCKER_GROUP_L2_FLOOD(vlan_id
, 0);
3338 if (!rocker_port_is_bridged(rocker_port
))
3341 err
= rocker_flow_tbl_bridge(rocker_port
, trans
, flags
,
3342 ctrl
->eth_dst
, ctrl
->eth_dst_mask
,
3344 goto_tbl
, group_id
, ctrl
->copy_to_cpu
);
3347 netdev_err(rocker_port
->dev
, "Error (%d) ctrl FLOOD\n", err
);
3352 static int rocker_port_ctrl_vlan_term(struct rocker_port
*rocker_port
,
3353 enum switchdev_trans trans
, int flags
,
3354 const struct rocker_ctrl
*ctrl
, __be16 vlan_id
)
3356 u32 in_pport_mask
= 0xffffffff;
3357 __be16 vlan_id_mask
= htons(0xffff);
3360 if (ntohs(vlan_id
) == 0)
3361 vlan_id
= rocker_port
->internal_vlan_id
;
3363 err
= rocker_flow_tbl_term_mac(rocker_port
, trans
,
3364 rocker_port
->pport
, in_pport_mask
,
3365 ctrl
->eth_type
, ctrl
->eth_dst
,
3366 ctrl
->eth_dst_mask
, vlan_id
,
3367 vlan_id_mask
, ctrl
->copy_to_cpu
,
3371 netdev_err(rocker_port
->dev
, "Error (%d) ctrl term\n", err
);
3376 static int rocker_port_ctrl_vlan(struct rocker_port
*rocker_port
,
3377 enum switchdev_trans trans
, int flags
,
3378 const struct rocker_ctrl
*ctrl
, __be16 vlan_id
)
3381 return rocker_port_ctrl_vlan_acl(rocker_port
, trans
, flags
,
3384 return rocker_port_ctrl_vlan_bridge(rocker_port
, trans
, flags
,
3388 return rocker_port_ctrl_vlan_term(rocker_port
, trans
, flags
,
3394 static int rocker_port_ctrl_vlan_add(struct rocker_port
*rocker_port
,
3395 enum switchdev_trans trans
, int flags
,
3401 for (i
= 0; i
< ROCKER_CTRL_MAX
; i
++) {
3402 if (rocker_port
->ctrls
[i
]) {
3403 err
= rocker_port_ctrl_vlan(rocker_port
, trans
, flags
,
3404 &rocker_ctrls
[i
], vlan_id
);
3413 static int rocker_port_ctrl(struct rocker_port
*rocker_port
,
3414 enum switchdev_trans trans
, int flags
,
3415 const struct rocker_ctrl
*ctrl
)
3420 for (vid
= 1; vid
< VLAN_N_VID
; vid
++) {
3421 if (!test_bit(vid
, rocker_port
->vlan_bitmap
))
3423 err
= rocker_port_ctrl_vlan(rocker_port
, trans
, flags
,
3432 static int rocker_port_vlan(struct rocker_port
*rocker_port
,
3433 enum switchdev_trans trans
, int flags
, u16 vid
)
3435 enum rocker_of_dpa_table_id goto_tbl
=
3436 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC
;
3437 u32 in_pport
= rocker_port
->pport
;
3438 __be16 vlan_id
= htons(vid
);
3439 __be16 vlan_id_mask
= htons(0xffff);
3440 __be16 internal_vlan_id
;
3442 bool adding
= !(flags
& ROCKER_OP_FLAG_REMOVE
);
3445 internal_vlan_id
= rocker_port_vid_to_vlan(rocker_port
, vid
, &untagged
);
3447 if (adding
&& test_bit(ntohs(internal_vlan_id
),
3448 rocker_port
->vlan_bitmap
))
3449 return 0; /* already added */
3450 else if (!adding
&& !test_bit(ntohs(internal_vlan_id
),
3451 rocker_port
->vlan_bitmap
))
3452 return 0; /* already removed */
3454 change_bit(ntohs(internal_vlan_id
), rocker_port
->vlan_bitmap
);
3457 err
= rocker_port_ctrl_vlan_add(rocker_port
, trans
, flags
,
3460 netdev_err(rocker_port
->dev
,
3461 "Error (%d) port ctrl vlan add\n", err
);
3466 err
= rocker_port_vlan_l2_groups(rocker_port
, trans
, flags
,
3467 internal_vlan_id
, untagged
);
3469 netdev_err(rocker_port
->dev
,
3470 "Error (%d) port VLAN l2 groups\n", err
);
3474 err
= rocker_port_vlan_flood_group(rocker_port
, trans
, flags
,
3477 netdev_err(rocker_port
->dev
,
3478 "Error (%d) port VLAN l2 flood group\n", err
);
3482 err
= rocker_flow_tbl_vlan(rocker_port
, trans
, flags
,
3483 in_pport
, vlan_id
, vlan_id_mask
,
3484 goto_tbl
, untagged
, internal_vlan_id
);
3486 netdev_err(rocker_port
->dev
,
3487 "Error (%d) port VLAN table\n", err
);
3490 if (trans
== SWITCHDEV_TRANS_PREPARE
)
3491 change_bit(ntohs(internal_vlan_id
), rocker_port
->vlan_bitmap
);
3496 static int rocker_port_ig_tbl(struct rocker_port
*rocker_port
,
3497 enum switchdev_trans trans
, int flags
)
3499 enum rocker_of_dpa_table_id goto_tbl
;
3504 /* Normal Ethernet Frames. Matches pkts from any local physical
3505 * ports. Goto VLAN tbl.
3509 in_pport_mask
= 0xffff0000;
3510 goto_tbl
= ROCKER_OF_DPA_TABLE_ID_VLAN
;
3512 err
= rocker_flow_tbl_ig_port(rocker_port
, trans
, flags
,
3513 in_pport
, in_pport_mask
,
3516 netdev_err(rocker_port
->dev
,
3517 "Error (%d) ingress port table entry\n", err
);
3522 struct rocker_fdb_learn_work
{
3523 struct work_struct work
;
3524 struct rocker_port
*rocker_port
;
3525 enum switchdev_trans trans
;
3531 static void rocker_port_fdb_learn_work(struct work_struct
*work
)
3533 const struct rocker_fdb_learn_work
*lw
=
3534 container_of(work
, struct rocker_fdb_learn_work
, work
);
3535 bool removing
= (lw
->flags
& ROCKER_OP_FLAG_REMOVE
);
3536 bool learned
= (lw
->flags
& ROCKER_OP_FLAG_LEARNED
);
3537 struct switchdev_notifier_fdb_info info
;
3539 info
.addr
= lw
->addr
;
3542 if (learned
&& removing
)
3543 call_switchdev_notifiers(SWITCHDEV_FDB_DEL
,
3544 lw
->rocker_port
->dev
, &info
.info
);
3545 else if (learned
&& !removing
)
3546 call_switchdev_notifiers(SWITCHDEV_FDB_ADD
,
3547 lw
->rocker_port
->dev
, &info
.info
);
3549 rocker_port_kfree(lw
->trans
, work
);
3552 static int rocker_port_fdb_learn(struct rocker_port
*rocker_port
,
3553 enum switchdev_trans trans
, int flags
,
3554 const u8
*addr
, __be16 vlan_id
)
3556 struct rocker_fdb_learn_work
*lw
;
3557 enum rocker_of_dpa_table_id goto_tbl
=
3558 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
3559 u32 out_pport
= rocker_port
->pport
;
3561 u32 group_id
= ROCKER_GROUP_NONE
;
3562 bool syncing
= !!(rocker_port
->brport_flags
& BR_LEARNING_SYNC
);
3563 bool copy_to_cpu
= false;
3566 if (rocker_port_is_bridged(rocker_port
))
3567 group_id
= ROCKER_GROUP_L2_INTERFACE(vlan_id
, out_pport
);
3569 if (!(flags
& ROCKER_OP_FLAG_REFRESH
)) {
3570 err
= rocker_flow_tbl_bridge(rocker_port
, trans
, flags
, addr
,
3571 NULL
, vlan_id
, tunnel_id
, goto_tbl
,
3572 group_id
, copy_to_cpu
);
3580 if (!rocker_port_is_bridged(rocker_port
))
3583 lw
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*lw
));
3587 INIT_WORK(&lw
->work
, rocker_port_fdb_learn_work
);
3589 lw
->rocker_port
= rocker_port
;
3592 ether_addr_copy(lw
->addr
, addr
);
3593 lw
->vid
= rocker_port_vlan_to_vid(rocker_port
, vlan_id
);
3595 if (trans
== SWITCHDEV_TRANS_PREPARE
)
3596 rocker_port_kfree(trans
, lw
);
3598 schedule_work(&lw
->work
);
3603 static struct rocker_fdb_tbl_entry
*
3604 rocker_fdb_tbl_find(const struct rocker
*rocker
,
3605 const struct rocker_fdb_tbl_entry
*match
)
3607 struct rocker_fdb_tbl_entry
*found
;
3609 hash_for_each_possible(rocker
->fdb_tbl
, found
, entry
, match
->key_crc32
)
3610 if (memcmp(&found
->key
, &match
->key
, sizeof(found
->key
)) == 0)
3616 static int rocker_port_fdb(struct rocker_port
*rocker_port
,
3617 enum switchdev_trans trans
,
3618 const unsigned char *addr
,
3619 __be16 vlan_id
, int flags
)
3621 struct rocker
*rocker
= rocker_port
->rocker
;
3622 struct rocker_fdb_tbl_entry
*fdb
;
3623 struct rocker_fdb_tbl_entry
*found
;
3624 bool removing
= (flags
& ROCKER_OP_FLAG_REMOVE
);
3625 unsigned long lock_flags
;
3627 fdb
= rocker_port_kzalloc(rocker_port
, trans
, flags
, sizeof(*fdb
));
3631 fdb
->learned
= (flags
& ROCKER_OP_FLAG_LEARNED
);
3632 fdb
->key
.pport
= rocker_port
->pport
;
3633 ether_addr_copy(fdb
->key
.addr
, addr
);
3634 fdb
->key
.vlan_id
= vlan_id
;
3635 fdb
->key_crc32
= crc32(~0, &fdb
->key
, sizeof(fdb
->key
));
3637 spin_lock_irqsave(&rocker
->fdb_tbl_lock
, lock_flags
);
3639 found
= rocker_fdb_tbl_find(rocker
, fdb
);
3641 if (removing
&& found
) {
3642 rocker_port_kfree(trans
, fdb
);
3643 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
3644 hash_del(&found
->entry
);
3645 } else if (!removing
&& !found
) {
3646 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
3647 hash_add(rocker
->fdb_tbl
, &fdb
->entry
, fdb
->key_crc32
);
3650 spin_unlock_irqrestore(&rocker
->fdb_tbl_lock
, lock_flags
);
3652 /* Check if adding and already exists, or removing and can't find */
3653 if (!found
!= !removing
) {
3654 rocker_port_kfree(trans
, fdb
);
3655 if (!found
&& removing
)
3657 /* Refreshing existing to update aging timers */
3658 flags
|= ROCKER_OP_FLAG_REFRESH
;
3661 return rocker_port_fdb_learn(rocker_port
, trans
, flags
, addr
, vlan_id
);
3664 static int rocker_port_fdb_flush(struct rocker_port
*rocker_port
,
3665 enum switchdev_trans trans
, int flags
)
3667 struct rocker
*rocker
= rocker_port
->rocker
;
3668 struct rocker_fdb_tbl_entry
*found
;
3669 unsigned long lock_flags
;
3670 struct hlist_node
*tmp
;
3674 if (rocker_port
->stp_state
== BR_STATE_LEARNING
||
3675 rocker_port
->stp_state
== BR_STATE_FORWARDING
)
3678 flags
|= ROCKER_OP_FLAG_REMOVE
;
3680 spin_lock_irqsave(&rocker
->fdb_tbl_lock
, lock_flags
);
3682 hash_for_each_safe(rocker
->fdb_tbl
, bkt
, tmp
, found
, entry
) {
3683 if (found
->key
.pport
!= rocker_port
->pport
)
3685 if (!found
->learned
)
3687 err
= rocker_port_fdb_learn(rocker_port
, trans
, flags
,
3689 found
->key
.vlan_id
);
3692 if (trans
!= SWITCHDEV_TRANS_PREPARE
)
3693 hash_del(&found
->entry
);
3697 spin_unlock_irqrestore(&rocker
->fdb_tbl_lock
, lock_flags
);
3702 static int rocker_port_router_mac(struct rocker_port
*rocker_port
,
3703 enum switchdev_trans trans
, int flags
,
3706 u32 in_pport_mask
= 0xffffffff;
3708 const u8
*dst_mac_mask
= ff_mac
;
3709 __be16 vlan_id_mask
= htons(0xffff);
3710 bool copy_to_cpu
= false;
3713 if (ntohs(vlan_id
) == 0)
3714 vlan_id
= rocker_port
->internal_vlan_id
;
3716 eth_type
= htons(ETH_P_IP
);
3717 err
= rocker_flow_tbl_term_mac(rocker_port
, trans
,
3718 rocker_port
->pport
, in_pport_mask
,
3719 eth_type
, rocker_port
->dev
->dev_addr
,
3720 dst_mac_mask
, vlan_id
, vlan_id_mask
,
3721 copy_to_cpu
, flags
);
3725 eth_type
= htons(ETH_P_IPV6
);
3726 err
= rocker_flow_tbl_term_mac(rocker_port
, trans
,
3727 rocker_port
->pport
, in_pport_mask
,
3728 eth_type
, rocker_port
->dev
->dev_addr
,
3729 dst_mac_mask
, vlan_id
, vlan_id_mask
,
3730 copy_to_cpu
, flags
);
3735 static int rocker_port_fwding(struct rocker_port
*rocker_port
,
3736 enum switchdev_trans trans
, int flags
)
3744 /* Port will be forwarding-enabled if its STP state is LEARNING
3745 * or FORWARDING. Traffic from CPU can still egress, regardless of
3746 * port STP state. Use L2 interface group on port VLANs as a way
3747 * to toggle port forwarding: if forwarding is disabled, L2
3748 * interface group will not exist.
3751 if (rocker_port
->stp_state
!= BR_STATE_LEARNING
&&
3752 rocker_port
->stp_state
!= BR_STATE_FORWARDING
)
3753 flags
|= ROCKER_OP_FLAG_REMOVE
;
3755 out_pport
= rocker_port
->pport
;
3756 for (vid
= 1; vid
< VLAN_N_VID
; vid
++) {
3757 if (!test_bit(vid
, rocker_port
->vlan_bitmap
))
3759 vlan_id
= htons(vid
);
3760 pop_vlan
= rocker_vlan_id_is_internal(vlan_id
);
3761 err
= rocker_group_l2_interface(rocker_port
, trans
, flags
,
3762 vlan_id
, out_pport
, pop_vlan
);
3764 netdev_err(rocker_port
->dev
,
3765 "Error (%d) port VLAN l2 group for pport %d\n",
3774 static int rocker_port_stp_update(struct rocker_port
*rocker_port
,
3775 enum switchdev_trans trans
, int flags
,
3778 bool want
[ROCKER_CTRL_MAX
] = { 0, };
3779 bool prev_ctrls
[ROCKER_CTRL_MAX
];
3784 if (trans
== SWITCHDEV_TRANS_PREPARE
) {
3785 memcpy(prev_ctrls
, rocker_port
->ctrls
, sizeof(prev_ctrls
));
3786 prev_state
= rocker_port
->stp_state
;
3789 if (rocker_port
->stp_state
== state
)
3792 rocker_port
->stp_state
= state
;
3795 case BR_STATE_DISABLED
:
3796 /* port is completely disabled */
3798 case BR_STATE_LISTENING
:
3799 case BR_STATE_BLOCKING
:
3800 want
[ROCKER_CTRL_LINK_LOCAL_MCAST
] = true;
3802 case BR_STATE_LEARNING
:
3803 case BR_STATE_FORWARDING
:
3804 if (!rocker_port_is_ovsed(rocker_port
))
3805 want
[ROCKER_CTRL_LINK_LOCAL_MCAST
] = true;
3806 want
[ROCKER_CTRL_IPV4_MCAST
] = true;
3807 want
[ROCKER_CTRL_IPV6_MCAST
] = true;
3808 if (rocker_port_is_bridged(rocker_port
))
3809 want
[ROCKER_CTRL_DFLT_BRIDGING
] = true;
3810 else if (rocker_port_is_ovsed(rocker_port
))
3811 want
[ROCKER_CTRL_DFLT_OVS
] = true;
3813 want
[ROCKER_CTRL_LOCAL_ARP
] = true;
3817 for (i
= 0; i
< ROCKER_CTRL_MAX
; i
++) {
3818 if (want
[i
] != rocker_port
->ctrls
[i
]) {
3819 int ctrl_flags
= flags
|
3820 (want
[i
] ? 0 : ROCKER_OP_FLAG_REMOVE
);
3821 err
= rocker_port_ctrl(rocker_port
, trans
, ctrl_flags
,
3825 rocker_port
->ctrls
[i
] = want
[i
];
3829 err
= rocker_port_fdb_flush(rocker_port
, trans
, flags
);
3833 err
= rocker_port_fwding(rocker_port
, trans
, flags
);
3836 if (trans
== SWITCHDEV_TRANS_PREPARE
) {
3837 memcpy(rocker_port
->ctrls
, prev_ctrls
, sizeof(prev_ctrls
));
3838 rocker_port
->stp_state
= prev_state
;
3844 static int rocker_port_fwd_enable(struct rocker_port
*rocker_port
,
3845 enum switchdev_trans trans
, int flags
)
3847 if (rocker_port_is_bridged(rocker_port
))
3848 /* bridge STP will enable port */
3851 /* port is not bridged, so simulate going to FORWARDING state */
3852 return rocker_port_stp_update(rocker_port
, trans
, flags
,
3853 BR_STATE_FORWARDING
);
3856 static int rocker_port_fwd_disable(struct rocker_port
*rocker_port
,
3857 enum switchdev_trans trans
, int flags
)
3859 if (rocker_port_is_bridged(rocker_port
))
3860 /* bridge STP will disable port */
3863 /* port is not bridged, so simulate going to DISABLED state */
3864 return rocker_port_stp_update(rocker_port
, trans
, flags
,
3868 static struct rocker_internal_vlan_tbl_entry
*
3869 rocker_internal_vlan_tbl_find(const struct rocker
*rocker
, int ifindex
)
3871 struct rocker_internal_vlan_tbl_entry
*found
;
3873 hash_for_each_possible(rocker
->internal_vlan_tbl
, found
,
3875 if (found
->ifindex
== ifindex
)
3882 static __be16
rocker_port_internal_vlan_id_get(struct rocker_port
*rocker_port
,
3885 struct rocker
*rocker
= rocker_port
->rocker
;
3886 struct rocker_internal_vlan_tbl_entry
*entry
;
3887 struct rocker_internal_vlan_tbl_entry
*found
;
3888 unsigned long lock_flags
;
3891 entry
= kzalloc(sizeof(*entry
), GFP_KERNEL
);
3895 entry
->ifindex
= ifindex
;
3897 spin_lock_irqsave(&rocker
->internal_vlan_tbl_lock
, lock_flags
);
3899 found
= rocker_internal_vlan_tbl_find(rocker
, ifindex
);
3906 hash_add(rocker
->internal_vlan_tbl
, &found
->entry
, found
->ifindex
);
3908 for (i
= 0; i
< ROCKER_N_INTERNAL_VLANS
; i
++) {
3909 if (test_and_set_bit(i
, rocker
->internal_vlan_bitmap
))
3911 found
->vlan_id
= htons(ROCKER_INTERNAL_VLAN_ID_BASE
+ i
);
3915 netdev_err(rocker_port
->dev
, "Out of internal VLAN IDs\n");
3919 spin_unlock_irqrestore(&rocker
->internal_vlan_tbl_lock
, lock_flags
);
3921 return found
->vlan_id
;
3925 rocker_port_internal_vlan_id_put(const struct rocker_port
*rocker_port
,
3928 struct rocker
*rocker
= rocker_port
->rocker
;
3929 struct rocker_internal_vlan_tbl_entry
*found
;
3930 unsigned long lock_flags
;
3933 spin_lock_irqsave(&rocker
->internal_vlan_tbl_lock
, lock_flags
);
3935 found
= rocker_internal_vlan_tbl_find(rocker
, ifindex
);
3937 netdev_err(rocker_port
->dev
,
3938 "ifindex (%d) not found in internal VLAN tbl\n",
3943 if (--found
->ref_count
<= 0) {
3944 bit
= ntohs(found
->vlan_id
) - ROCKER_INTERNAL_VLAN_ID_BASE
;
3945 clear_bit(bit
, rocker
->internal_vlan_bitmap
);
3946 hash_del(&found
->entry
);
3951 spin_unlock_irqrestore(&rocker
->internal_vlan_tbl_lock
, lock_flags
);
3954 static int rocker_port_fib_ipv4(struct rocker_port
*rocker_port
,
3955 enum switchdev_trans trans
, __be32 dst
,
3956 int dst_len
, const struct fib_info
*fi
,
3957 u32 tb_id
, int flags
)
3959 const struct fib_nh
*nh
;
3960 __be16 eth_type
= htons(ETH_P_IP
);
3961 __be32 dst_mask
= inet_make_mask(dst_len
);
3962 __be16 internal_vlan_id
= rocker_port
->internal_vlan_id
;
3963 u32 priority
= fi
->fib_priority
;
3964 enum rocker_of_dpa_table_id goto_tbl
=
3965 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
3972 /* XXX support ECMP */
3975 nh_on_port
= (fi
->fib_dev
== rocker_port
->dev
);
3976 has_gw
= !!nh
->nh_gw
;
3978 if (has_gw
&& nh_on_port
) {
3979 err
= rocker_port_ipv4_nh(rocker_port
, trans
, flags
,
3984 group_id
= ROCKER_GROUP_L3_UNICAST(index
);
3986 /* Send to CPU for processing */
3987 group_id
= ROCKER_GROUP_L2_INTERFACE(internal_vlan_id
, 0);
3990 err
= rocker_flow_tbl_ucast4_routing(rocker_port
, trans
, eth_type
, dst
,
3991 dst_mask
, priority
, goto_tbl
,
3994 netdev_err(rocker_port
->dev
, "Error (%d) IPv4 route %pI4\n",
4004 static int rocker_port_open(struct net_device
*dev
)
4006 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4009 err
= rocker_port_dma_rings_init(rocker_port
);
4013 err
= request_irq(rocker_msix_tx_vector(rocker_port
),
4014 rocker_tx_irq_handler
, 0,
4015 rocker_driver_name
, rocker_port
);
4017 netdev_err(rocker_port
->dev
, "cannot assign tx irq\n");
4018 goto err_request_tx_irq
;
4021 err
= request_irq(rocker_msix_rx_vector(rocker_port
),
4022 rocker_rx_irq_handler
, 0,
4023 rocker_driver_name
, rocker_port
);
4025 netdev_err(rocker_port
->dev
, "cannot assign rx irq\n");
4026 goto err_request_rx_irq
;
4029 err
= rocker_port_fwd_enable(rocker_port
, SWITCHDEV_TRANS_NONE
, 0);
4031 goto err_fwd_enable
;
4033 napi_enable(&rocker_port
->napi_tx
);
4034 napi_enable(&rocker_port
->napi_rx
);
4035 if (!dev
->proto_down
)
4036 rocker_port_set_enable(rocker_port
, true);
4037 netif_start_queue(dev
);
4041 free_irq(rocker_msix_rx_vector(rocker_port
), rocker_port
);
4043 free_irq(rocker_msix_tx_vector(rocker_port
), rocker_port
);
4045 rocker_port_dma_rings_fini(rocker_port
);
4049 static int rocker_port_stop(struct net_device
*dev
)
4051 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4053 netif_stop_queue(dev
);
4054 rocker_port_set_enable(rocker_port
, false);
4055 napi_disable(&rocker_port
->napi_rx
);
4056 napi_disable(&rocker_port
->napi_tx
);
4057 rocker_port_fwd_disable(rocker_port
, SWITCHDEV_TRANS_NONE
,
4058 ROCKER_OP_FLAG_NOWAIT
);
4059 free_irq(rocker_msix_rx_vector(rocker_port
), rocker_port
);
4060 free_irq(rocker_msix_tx_vector(rocker_port
), rocker_port
);
4061 rocker_port_dma_rings_fini(rocker_port
);
4066 static void rocker_tx_desc_frags_unmap(const struct rocker_port
*rocker_port
,
4067 const struct rocker_desc_info
*desc_info
)
4069 const struct rocker
*rocker
= rocker_port
->rocker
;
4070 struct pci_dev
*pdev
= rocker
->pdev
;
4071 const struct rocker_tlv
*attrs
[ROCKER_TLV_TX_MAX
+ 1];
4072 struct rocker_tlv
*attr
;
4075 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_TX_MAX
, desc_info
);
4076 if (!attrs
[ROCKER_TLV_TX_FRAGS
])
4078 rocker_tlv_for_each_nested(attr
, attrs
[ROCKER_TLV_TX_FRAGS
], rem
) {
4079 const struct rocker_tlv
*frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_MAX
+ 1];
4080 dma_addr_t dma_handle
;
4083 if (rocker_tlv_type(attr
) != ROCKER_TLV_TX_FRAG
)
4085 rocker_tlv_parse_nested(frag_attrs
, ROCKER_TLV_TX_FRAG_ATTR_MAX
,
4087 if (!frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_ADDR
] ||
4088 !frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_LEN
])
4090 dma_handle
= rocker_tlv_get_u64(frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_ADDR
]);
4091 len
= rocker_tlv_get_u16(frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_LEN
]);
4092 pci_unmap_single(pdev
, dma_handle
, len
, DMA_TO_DEVICE
);
4096 static int rocker_tx_desc_frag_map_put(const struct rocker_port
*rocker_port
,
4097 struct rocker_desc_info
*desc_info
,
4098 char *buf
, size_t buf_len
)
4100 const struct rocker
*rocker
= rocker_port
->rocker
;
4101 struct pci_dev
*pdev
= rocker
->pdev
;
4102 dma_addr_t dma_handle
;
4103 struct rocker_tlv
*frag
;
4105 dma_handle
= pci_map_single(pdev
, buf
, buf_len
, DMA_TO_DEVICE
);
4106 if (unlikely(pci_dma_mapping_error(pdev
, dma_handle
))) {
4107 if (net_ratelimit())
4108 netdev_err(rocker_port
->dev
, "failed to dma map tx frag\n");
4111 frag
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_TX_FRAG
);
4114 if (rocker_tlv_put_u64(desc_info
, ROCKER_TLV_TX_FRAG_ATTR_ADDR
,
4117 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_TX_FRAG_ATTR_LEN
,
4120 rocker_tlv_nest_end(desc_info
, frag
);
4124 rocker_tlv_nest_cancel(desc_info
, frag
);
4126 pci_unmap_single(pdev
, dma_handle
, buf_len
, DMA_TO_DEVICE
);
4130 static netdev_tx_t
rocker_port_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
4132 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4133 struct rocker
*rocker
= rocker_port
->rocker
;
4134 struct rocker_desc_info
*desc_info
;
4135 struct rocker_tlv
*frags
;
4139 desc_info
= rocker_desc_head_get(&rocker_port
->tx_ring
);
4140 if (unlikely(!desc_info
)) {
4141 if (net_ratelimit())
4142 netdev_err(dev
, "tx ring full when queue awake\n");
4143 return NETDEV_TX_BUSY
;
4146 rocker_desc_cookie_ptr_set(desc_info
, skb
);
4148 frags
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_TX_FRAGS
);
4151 err
= rocker_tx_desc_frag_map_put(rocker_port
, desc_info
,
4152 skb
->data
, skb_headlen(skb
));
4155 if (skb_shinfo(skb
)->nr_frags
> ROCKER_TX_FRAGS_MAX
) {
4156 err
= skb_linearize(skb
);
4161 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
4162 const skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
4164 err
= rocker_tx_desc_frag_map_put(rocker_port
, desc_info
,
4165 skb_frag_address(frag
),
4166 skb_frag_size(frag
));
4170 rocker_tlv_nest_end(desc_info
, frags
);
4172 rocker_desc_gen_clear(desc_info
);
4173 rocker_desc_head_set(rocker
, &rocker_port
->tx_ring
, desc_info
);
4175 desc_info
= rocker_desc_head_get(&rocker_port
->tx_ring
);
4177 netif_stop_queue(dev
);
4179 return NETDEV_TX_OK
;
4182 rocker_tx_desc_frags_unmap(rocker_port
, desc_info
);
4184 rocker_tlv_nest_cancel(desc_info
, frags
);
4187 dev
->stats
.tx_dropped
++;
4189 return NETDEV_TX_OK
;
4192 static int rocker_port_set_mac_address(struct net_device
*dev
, void *p
)
4194 struct sockaddr
*addr
= p
;
4195 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4198 if (!is_valid_ether_addr(addr
->sa_data
))
4199 return -EADDRNOTAVAIL
;
4201 err
= rocker_cmd_set_port_settings_macaddr(rocker_port
, addr
->sa_data
);
4204 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
4208 static int rocker_port_change_mtu(struct net_device
*dev
, int new_mtu
)
4210 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4211 int running
= netif_running(dev
);
4214 #define ROCKER_PORT_MIN_MTU 68
4215 #define ROCKER_PORT_MAX_MTU 9000
4217 if (new_mtu
< ROCKER_PORT_MIN_MTU
|| new_mtu
> ROCKER_PORT_MAX_MTU
)
4221 rocker_port_stop(dev
);
4223 netdev_info(dev
, "MTU change from %d to %d\n", dev
->mtu
, new_mtu
);
4226 err
= rocker_cmd_set_port_settings_mtu(rocker_port
, new_mtu
);
4231 err
= rocker_port_open(dev
);
4236 static int rocker_port_get_phys_port_name(struct net_device
*dev
,
4237 char *buf
, size_t len
)
4239 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4240 struct port_name name
= { .buf
= buf
, .len
= len
};
4243 err
= rocker_cmd_exec(rocker_port
, SWITCHDEV_TRANS_NONE
, 0,
4244 rocker_cmd_get_port_settings_prep
, NULL
,
4245 rocker_cmd_get_port_settings_phys_name_proc
,
4248 return err
? -EOPNOTSUPP
: 0;
4251 static int rocker_port_change_proto_down(struct net_device
*dev
,
4254 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4256 if (rocker_port
->dev
->flags
& IFF_UP
)
4257 rocker_port_set_enable(rocker_port
, !proto_down
);
4258 rocker_port
->dev
->proto_down
= proto_down
;
4262 static void rocker_port_neigh_destroy(struct neighbour
*n
)
4264 struct rocker_port
*rocker_port
= netdev_priv(n
->dev
);
4265 int flags
= ROCKER_OP_FLAG_REMOVE
| ROCKER_OP_FLAG_NOWAIT
;
4266 __be32 ip_addr
= *(__be32
*)n
->primary_key
;
4268 rocker_port_ipv4_neigh(rocker_port
, SWITCHDEV_TRANS_NONE
,
4269 flags
, ip_addr
, n
->ha
);
4272 static const struct net_device_ops rocker_port_netdev_ops
= {
4273 .ndo_open
= rocker_port_open
,
4274 .ndo_stop
= rocker_port_stop
,
4275 .ndo_start_xmit
= rocker_port_xmit
,
4276 .ndo_set_mac_address
= rocker_port_set_mac_address
,
4277 .ndo_change_mtu
= rocker_port_change_mtu
,
4278 .ndo_bridge_getlink
= switchdev_port_bridge_getlink
,
4279 .ndo_bridge_setlink
= switchdev_port_bridge_setlink
,
4280 .ndo_bridge_dellink
= switchdev_port_bridge_dellink
,
4281 .ndo_fdb_add
= switchdev_port_fdb_add
,
4282 .ndo_fdb_del
= switchdev_port_fdb_del
,
4283 .ndo_fdb_dump
= switchdev_port_fdb_dump
,
4284 .ndo_get_phys_port_name
= rocker_port_get_phys_port_name
,
4285 .ndo_change_proto_down
= rocker_port_change_proto_down
,
4286 .ndo_neigh_destroy
= rocker_port_neigh_destroy
,
4289 /********************
4291 ********************/
4293 static int rocker_port_attr_get(struct net_device
*dev
,
4294 struct switchdev_attr
*attr
)
4296 const struct rocker_port
*rocker_port
= netdev_priv(dev
);
4297 const struct rocker
*rocker
= rocker_port
->rocker
;
4300 case SWITCHDEV_ATTR_PORT_PARENT_ID
:
4301 attr
->u
.ppid
.id_len
= sizeof(rocker
->hw
.id
);
4302 memcpy(&attr
->u
.ppid
.id
, &rocker
->hw
.id
, attr
->u
.ppid
.id_len
);
4304 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS
:
4305 attr
->u
.brport_flags
= rocker_port
->brport_flags
;
4314 static void rocker_port_trans_abort(const struct rocker_port
*rocker_port
)
4316 struct list_head
*mem
, *tmp
;
4318 list_for_each_safe(mem
, tmp
, &rocker_port
->trans_mem
) {
4324 static int rocker_port_brport_flags_set(struct rocker_port
*rocker_port
,
4325 enum switchdev_trans trans
,
4326 unsigned long brport_flags
)
4328 unsigned long orig_flags
;
4331 orig_flags
= rocker_port
->brport_flags
;
4332 rocker_port
->brport_flags
= brport_flags
;
4333 if ((orig_flags
^ rocker_port
->brport_flags
) & BR_LEARNING
)
4334 err
= rocker_port_set_learning(rocker_port
, trans
);
4336 if (trans
== SWITCHDEV_TRANS_PREPARE
)
4337 rocker_port
->brport_flags
= orig_flags
;
4342 static int rocker_port_attr_set(struct net_device
*dev
,
4343 struct switchdev_attr
*attr
)
4345 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4348 switch (attr
->trans
) {
4349 case SWITCHDEV_TRANS_PREPARE
:
4350 BUG_ON(!list_empty(&rocker_port
->trans_mem
));
4352 case SWITCHDEV_TRANS_ABORT
:
4353 rocker_port_trans_abort(rocker_port
);
4360 case SWITCHDEV_ATTR_PORT_STP_STATE
:
4361 err
= rocker_port_stp_update(rocker_port
, attr
->trans
,
4362 ROCKER_OP_FLAG_NOWAIT
,
4365 case SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS
:
4366 err
= rocker_port_brport_flags_set(rocker_port
, attr
->trans
,
4367 attr
->u
.brport_flags
);
4377 static int rocker_port_vlan_add(struct rocker_port
*rocker_port
,
4378 enum switchdev_trans trans
, u16 vid
, u16 flags
)
4382 /* XXX deal with flags for PVID and untagged */
4384 err
= rocker_port_vlan(rocker_port
, trans
, 0, vid
);
4388 err
= rocker_port_router_mac(rocker_port
, trans
, 0, htons(vid
));
4390 rocker_port_vlan(rocker_port
, trans
,
4391 ROCKER_OP_FLAG_REMOVE
, vid
);
4396 static int rocker_port_vlans_add(struct rocker_port
*rocker_port
,
4397 enum switchdev_trans trans
,
4398 const struct switchdev_obj_vlan
*vlan
)
4403 for (vid
= vlan
->vid_begin
; vid
<= vlan
->vid_end
; vid
++) {
4404 err
= rocker_port_vlan_add(rocker_port
, trans
,
4413 static int rocker_port_fdb_add(struct rocker_port
*rocker_port
,
4414 enum switchdev_trans trans
,
4415 const struct switchdev_obj_fdb
*fdb
)
4417 __be16 vlan_id
= rocker_port_vid_to_vlan(rocker_port
, fdb
->vid
, NULL
);
4420 if (!rocker_port_is_bridged(rocker_port
))
4423 return rocker_port_fdb(rocker_port
, trans
, fdb
->addr
, vlan_id
, flags
);
4426 static int rocker_port_obj_add(struct net_device
*dev
,
4427 struct switchdev_obj
*obj
)
4429 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4430 const struct switchdev_obj_ipv4_fib
*fib4
;
4433 switch (obj
->trans
) {
4434 case SWITCHDEV_TRANS_PREPARE
:
4435 BUG_ON(!list_empty(&rocker_port
->trans_mem
));
4437 case SWITCHDEV_TRANS_ABORT
:
4438 rocker_port_trans_abort(rocker_port
);
4445 case SWITCHDEV_OBJ_PORT_VLAN
:
4446 err
= rocker_port_vlans_add(rocker_port
, obj
->trans
,
4449 case SWITCHDEV_OBJ_IPV4_FIB
:
4450 fib4
= &obj
->u
.ipv4_fib
;
4451 err
= rocker_port_fib_ipv4(rocker_port
, obj
->trans
,
4452 htonl(fib4
->dst
), fib4
->dst_len
,
4453 fib4
->fi
, fib4
->tb_id
, 0);
4455 case SWITCHDEV_OBJ_PORT_FDB
:
4456 err
= rocker_port_fdb_add(rocker_port
, obj
->trans
, &obj
->u
.fdb
);
4466 static int rocker_port_vlan_del(struct rocker_port
*rocker_port
,
4471 err
= rocker_port_router_mac(rocker_port
, SWITCHDEV_TRANS_NONE
,
4472 ROCKER_OP_FLAG_REMOVE
, htons(vid
));
4476 return rocker_port_vlan(rocker_port
, SWITCHDEV_TRANS_NONE
,
4477 ROCKER_OP_FLAG_REMOVE
, vid
);
4480 static int rocker_port_vlans_del(struct rocker_port
*rocker_port
,
4481 const struct switchdev_obj_vlan
*vlan
)
4486 for (vid
= vlan
->vid_begin
; vid
<= vlan
->vid_end
; vid
++) {
4487 err
= rocker_port_vlan_del(rocker_port
, vid
, vlan
->flags
);
4495 static int rocker_port_fdb_del(struct rocker_port
*rocker_port
,
4496 enum switchdev_trans trans
,
4497 const struct switchdev_obj_fdb
*fdb
)
4499 __be16 vlan_id
= rocker_port_vid_to_vlan(rocker_port
, fdb
->vid
, NULL
);
4500 int flags
= ROCKER_OP_FLAG_NOWAIT
| ROCKER_OP_FLAG_REMOVE
;
4502 if (!rocker_port_is_bridged(rocker_port
))
4505 return rocker_port_fdb(rocker_port
, trans
, fdb
->addr
, vlan_id
, flags
);
4508 static int rocker_port_obj_del(struct net_device
*dev
,
4509 struct switchdev_obj
*obj
)
4511 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4512 const struct switchdev_obj_ipv4_fib
*fib4
;
4516 case SWITCHDEV_OBJ_PORT_VLAN
:
4517 err
= rocker_port_vlans_del(rocker_port
, &obj
->u
.vlan
);
4519 case SWITCHDEV_OBJ_IPV4_FIB
:
4520 fib4
= &obj
->u
.ipv4_fib
;
4521 err
= rocker_port_fib_ipv4(rocker_port
, SWITCHDEV_TRANS_NONE
,
4522 htonl(fib4
->dst
), fib4
->dst_len
,
4523 fib4
->fi
, fib4
->tb_id
,
4524 ROCKER_OP_FLAG_REMOVE
);
4526 case SWITCHDEV_OBJ_PORT_FDB
:
4527 err
= rocker_port_fdb_del(rocker_port
, obj
->trans
, &obj
->u
.fdb
);
4537 static int rocker_port_fdb_dump(const struct rocker_port
*rocker_port
,
4538 struct switchdev_obj
*obj
)
4540 struct rocker
*rocker
= rocker_port
->rocker
;
4541 struct switchdev_obj_fdb
*fdb
= &obj
->u
.fdb
;
4542 struct rocker_fdb_tbl_entry
*found
;
4543 struct hlist_node
*tmp
;
4544 unsigned long lock_flags
;
4548 spin_lock_irqsave(&rocker
->fdb_tbl_lock
, lock_flags
);
4549 hash_for_each_safe(rocker
->fdb_tbl
, bkt
, tmp
, found
, entry
) {
4550 if (found
->key
.pport
!= rocker_port
->pport
)
4552 fdb
->addr
= found
->key
.addr
;
4553 fdb
->ndm_state
= NUD_REACHABLE
;
4554 fdb
->vid
= rocker_port_vlan_to_vid(rocker_port
,
4555 found
->key
.vlan_id
);
4556 err
= obj
->cb(rocker_port
->dev
, obj
);
4560 spin_unlock_irqrestore(&rocker
->fdb_tbl_lock
, lock_flags
);
4565 static int rocker_port_vlan_dump(const struct rocker_port
*rocker_port
,
4566 struct switchdev_obj
*obj
)
4568 struct switchdev_obj_vlan
*vlan
= &obj
->u
.vlan
;
4572 for (vid
= 1; vid
< VLAN_N_VID
; vid
++) {
4573 if (!test_bit(vid
, rocker_port
->vlan_bitmap
))
4576 if (rocker_vlan_id_is_internal(htons(vid
)))
4577 vlan
->flags
|= BRIDGE_VLAN_INFO_PVID
;
4578 vlan
->vid_begin
= vlan
->vid_end
= vid
;
4579 err
= obj
->cb(rocker_port
->dev
, obj
);
4587 static int rocker_port_obj_dump(struct net_device
*dev
,
4588 struct switchdev_obj
*obj
)
4590 const struct rocker_port
*rocker_port
= netdev_priv(dev
);
4594 case SWITCHDEV_OBJ_PORT_FDB
:
4595 err
= rocker_port_fdb_dump(rocker_port
, obj
);
4597 case SWITCHDEV_OBJ_PORT_VLAN
:
4598 err
= rocker_port_vlan_dump(rocker_port
, obj
);
4608 static const struct switchdev_ops rocker_port_switchdev_ops
= {
4609 .switchdev_port_attr_get
= rocker_port_attr_get
,
4610 .switchdev_port_attr_set
= rocker_port_attr_set
,
4611 .switchdev_port_obj_add
= rocker_port_obj_add
,
4612 .switchdev_port_obj_del
= rocker_port_obj_del
,
4613 .switchdev_port_obj_dump
= rocker_port_obj_dump
,
4616 /********************
4618 ********************/
4620 static int rocker_port_get_settings(struct net_device
*dev
,
4621 struct ethtool_cmd
*ecmd
)
4623 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4625 return rocker_cmd_get_port_settings_ethtool(rocker_port
, ecmd
);
4628 static int rocker_port_set_settings(struct net_device
*dev
,
4629 struct ethtool_cmd
*ecmd
)
4631 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4633 return rocker_cmd_set_port_settings_ethtool(rocker_port
, ecmd
);
4636 static void rocker_port_get_drvinfo(struct net_device
*dev
,
4637 struct ethtool_drvinfo
*drvinfo
)
4639 strlcpy(drvinfo
->driver
, rocker_driver_name
, sizeof(drvinfo
->driver
));
4640 strlcpy(drvinfo
->version
, UTS_RELEASE
, sizeof(drvinfo
->version
));
4643 static struct rocker_port_stats
{
4644 char str
[ETH_GSTRING_LEN
];
4646 } rocker_port_stats
[] = {
4647 { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS
, },
4648 { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES
, },
4649 { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED
, },
4650 { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS
, },
4652 { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS
, },
4653 { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES
, },
4654 { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED
, },
4655 { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS
, },
4658 #define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats)
4660 static void rocker_port_get_strings(struct net_device
*netdev
, u32 stringset
,
4666 switch (stringset
) {
4668 for (i
= 0; i
< ARRAY_SIZE(rocker_port_stats
); i
++) {
4669 memcpy(p
, rocker_port_stats
[i
].str
, ETH_GSTRING_LEN
);
4670 p
+= ETH_GSTRING_LEN
;
4677 rocker_cmd_get_port_stats_prep(const struct rocker_port
*rocker_port
,
4678 struct rocker_desc_info
*desc_info
,
4681 struct rocker_tlv
*cmd_stats
;
4683 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
4684 ROCKER_TLV_CMD_TYPE_GET_PORT_STATS
))
4687 cmd_stats
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
4691 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_STATS_PPORT
,
4692 rocker_port
->pport
))
4695 rocker_tlv_nest_end(desc_info
, cmd_stats
);
4701 rocker_cmd_get_port_stats_ethtool_proc(const struct rocker_port
*rocker_port
,
4702 const struct rocker_desc_info
*desc_info
,
4705 const struct rocker_tlv
*attrs
[ROCKER_TLV_CMD_MAX
+ 1];
4706 const struct rocker_tlv
*stats_attrs
[ROCKER_TLV_CMD_PORT_STATS_MAX
+ 1];
4707 const struct rocker_tlv
*pattr
;
4712 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_CMD_MAX
, desc_info
);
4714 if (!attrs
[ROCKER_TLV_CMD_INFO
])
4717 rocker_tlv_parse_nested(stats_attrs
, ROCKER_TLV_CMD_PORT_STATS_MAX
,
4718 attrs
[ROCKER_TLV_CMD_INFO
]);
4720 if (!stats_attrs
[ROCKER_TLV_CMD_PORT_STATS_PPORT
])
4723 pport
= rocker_tlv_get_u32(stats_attrs
[ROCKER_TLV_CMD_PORT_STATS_PPORT
]);
4724 if (pport
!= rocker_port
->pport
)
4727 for (i
= 0; i
< ARRAY_SIZE(rocker_port_stats
); i
++) {
4728 pattr
= stats_attrs
[rocker_port_stats
[i
].type
];
4732 data
[i
] = rocker_tlv_get_u64(pattr
);
4738 static int rocker_cmd_get_port_stats_ethtool(struct rocker_port
*rocker_port
,
4741 return rocker_cmd_exec(rocker_port
, SWITCHDEV_TRANS_NONE
, 0,
4742 rocker_cmd_get_port_stats_prep
, NULL
,
4743 rocker_cmd_get_port_stats_ethtool_proc
,
4747 static void rocker_port_get_stats(struct net_device
*dev
,
4748 struct ethtool_stats
*stats
, u64
*data
)
4750 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4752 if (rocker_cmd_get_port_stats_ethtool(rocker_port
, data
) != 0) {
4755 for (i
= 0; i
< ARRAY_SIZE(rocker_port_stats
); ++i
)
4760 static int rocker_port_get_sset_count(struct net_device
*netdev
, int sset
)
4764 return ROCKER_PORT_STATS_LEN
;
4770 static const struct ethtool_ops rocker_port_ethtool_ops
= {
4771 .get_settings
= rocker_port_get_settings
,
4772 .set_settings
= rocker_port_set_settings
,
4773 .get_drvinfo
= rocker_port_get_drvinfo
,
4774 .get_link
= ethtool_op_get_link
,
4775 .get_strings
= rocker_port_get_strings
,
4776 .get_ethtool_stats
= rocker_port_get_stats
,
4777 .get_sset_count
= rocker_port_get_sset_count
,
4784 static struct rocker_port
*rocker_port_napi_tx_get(struct napi_struct
*napi
)
4786 return container_of(napi
, struct rocker_port
, napi_tx
);
4789 static int rocker_port_poll_tx(struct napi_struct
*napi
, int budget
)
4791 struct rocker_port
*rocker_port
= rocker_port_napi_tx_get(napi
);
4792 const struct rocker
*rocker
= rocker_port
->rocker
;
4793 const struct rocker_desc_info
*desc_info
;
4797 /* Cleanup tx descriptors */
4798 while ((desc_info
= rocker_desc_tail_get(&rocker_port
->tx_ring
))) {
4799 struct sk_buff
*skb
;
4801 err
= rocker_desc_err(desc_info
);
4802 if (err
&& net_ratelimit())
4803 netdev_err(rocker_port
->dev
, "tx desc received with err %d\n",
4805 rocker_tx_desc_frags_unmap(rocker_port
, desc_info
);
4807 skb
= rocker_desc_cookie_ptr_get(desc_info
);
4809 rocker_port
->dev
->stats
.tx_packets
++;
4810 rocker_port
->dev
->stats
.tx_bytes
+= skb
->len
;
4812 rocker_port
->dev
->stats
.tx_errors
++;
4815 dev_kfree_skb_any(skb
);
4819 if (credits
&& netif_queue_stopped(rocker_port
->dev
))
4820 netif_wake_queue(rocker_port
->dev
);
4822 napi_complete(napi
);
4823 rocker_dma_ring_credits_set(rocker
, &rocker_port
->tx_ring
, credits
);
4828 static int rocker_port_rx_proc(const struct rocker
*rocker
,
4829 const struct rocker_port
*rocker_port
,
4830 struct rocker_desc_info
*desc_info
)
4832 const struct rocker_tlv
*attrs
[ROCKER_TLV_RX_MAX
+ 1];
4833 struct sk_buff
*skb
= rocker_desc_cookie_ptr_get(desc_info
);
4840 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_RX_MAX
, desc_info
);
4841 if (!attrs
[ROCKER_TLV_RX_FRAG_LEN
])
4843 if (attrs
[ROCKER_TLV_RX_FLAGS
])
4844 rx_flags
= rocker_tlv_get_u16(attrs
[ROCKER_TLV_RX_FLAGS
]);
4846 rocker_dma_rx_ring_skb_unmap(rocker
, attrs
);
4848 rx_len
= rocker_tlv_get_u16(attrs
[ROCKER_TLV_RX_FRAG_LEN
]);
4849 skb_put(skb
, rx_len
);
4850 skb
->protocol
= eth_type_trans(skb
, rocker_port
->dev
);
4852 if (rx_flags
& ROCKER_RX_FLAGS_FWD_OFFLOAD
)
4853 skb
->offload_fwd_mark
= rocker_port
->dev
->offload_fwd_mark
;
4855 rocker_port
->dev
->stats
.rx_packets
++;
4856 rocker_port
->dev
->stats
.rx_bytes
+= skb
->len
;
4858 netif_receive_skb(skb
);
4860 return rocker_dma_rx_ring_skb_alloc(rocker_port
, desc_info
);
4863 static struct rocker_port
*rocker_port_napi_rx_get(struct napi_struct
*napi
)
4865 return container_of(napi
, struct rocker_port
, napi_rx
);
4868 static int rocker_port_poll_rx(struct napi_struct
*napi
, int budget
)
4870 struct rocker_port
*rocker_port
= rocker_port_napi_rx_get(napi
);
4871 const struct rocker
*rocker
= rocker_port
->rocker
;
4872 struct rocker_desc_info
*desc_info
;
4876 /* Process rx descriptors */
4877 while (credits
< budget
&&
4878 (desc_info
= rocker_desc_tail_get(&rocker_port
->rx_ring
))) {
4879 err
= rocker_desc_err(desc_info
);
4881 if (net_ratelimit())
4882 netdev_err(rocker_port
->dev
, "rx desc received with err %d\n",
4885 err
= rocker_port_rx_proc(rocker
, rocker_port
,
4887 if (err
&& net_ratelimit())
4888 netdev_err(rocker_port
->dev
, "rx processing failed with err %d\n",
4892 rocker_port
->dev
->stats
.rx_errors
++;
4894 rocker_desc_gen_clear(desc_info
);
4895 rocker_desc_head_set(rocker
, &rocker_port
->rx_ring
, desc_info
);
4899 if (credits
< budget
)
4900 napi_complete(napi
);
4902 rocker_dma_ring_credits_set(rocker
, &rocker_port
->rx_ring
, credits
);
4911 static void rocker_carrier_init(const struct rocker_port
*rocker_port
)
4913 const struct rocker
*rocker
= rocker_port
->rocker
;
4914 u64 link_status
= rocker_read64(rocker
, PORT_PHYS_LINK_STATUS
);
4917 link_up
= link_status
& (1 << rocker_port
->pport
);
4919 netif_carrier_on(rocker_port
->dev
);
4921 netif_carrier_off(rocker_port
->dev
);
4924 static void rocker_remove_ports(const struct rocker
*rocker
)
4926 struct rocker_port
*rocker_port
;
4929 for (i
= 0; i
< rocker
->port_count
; i
++) {
4930 rocker_port
= rocker
->ports
[i
];
4933 rocker_port_ig_tbl(rocker_port
, SWITCHDEV_TRANS_NONE
,
4934 ROCKER_OP_FLAG_REMOVE
);
4935 unregister_netdev(rocker_port
->dev
);
4936 free_netdev(rocker_port
->dev
);
4938 kfree(rocker
->ports
);
4941 static void rocker_port_dev_addr_init(struct rocker_port
*rocker_port
)
4943 const struct rocker
*rocker
= rocker_port
->rocker
;
4944 const struct pci_dev
*pdev
= rocker
->pdev
;
4947 err
= rocker_cmd_get_port_settings_macaddr(rocker_port
,
4948 rocker_port
->dev
->dev_addr
);
4950 dev_warn(&pdev
->dev
, "failed to get mac address, using random\n");
4951 eth_hw_addr_random(rocker_port
->dev
);
4955 static int rocker_probe_port(struct rocker
*rocker
, unsigned int port_number
)
4957 const struct pci_dev
*pdev
= rocker
->pdev
;
4958 struct rocker_port
*rocker_port
;
4959 struct net_device
*dev
;
4960 u16 untagged_vid
= 0;
4963 dev
= alloc_etherdev(sizeof(struct rocker_port
));
4966 rocker_port
= netdev_priv(dev
);
4967 rocker_port
->dev
= dev
;
4968 rocker_port
->rocker
= rocker
;
4969 rocker_port
->port_number
= port_number
;
4970 rocker_port
->pport
= port_number
+ 1;
4971 rocker_port
->brport_flags
= BR_LEARNING
| BR_LEARNING_SYNC
;
4972 INIT_LIST_HEAD(&rocker_port
->trans_mem
);
4974 rocker_port_dev_addr_init(rocker_port
);
4975 dev
->netdev_ops
= &rocker_port_netdev_ops
;
4976 dev
->ethtool_ops
= &rocker_port_ethtool_ops
;
4977 dev
->switchdev_ops
= &rocker_port_switchdev_ops
;
4978 netif_napi_add(dev
, &rocker_port
->napi_tx
, rocker_port_poll_tx
,
4980 netif_napi_add(dev
, &rocker_port
->napi_rx
, rocker_port_poll_rx
,
4982 rocker_carrier_init(rocker_port
);
4984 dev
->features
|= NETIF_F_NETNS_LOCAL
| NETIF_F_SG
;
4986 err
= register_netdev(dev
);
4988 dev_err(&pdev
->dev
, "register_netdev failed\n");
4989 goto err_register_netdev
;
4991 rocker
->ports
[port_number
] = rocker_port
;
4993 switchdev_port_fwd_mark_set(rocker_port
->dev
, NULL
, false);
4995 rocker_port_set_learning(rocker_port
, SWITCHDEV_TRANS_NONE
);
4997 err
= rocker_port_ig_tbl(rocker_port
, SWITCHDEV_TRANS_NONE
, 0);
4999 netdev_err(rocker_port
->dev
, "install ig port table failed\n");
5000 goto err_port_ig_tbl
;
5003 rocker_port
->internal_vlan_id
=
5004 rocker_port_internal_vlan_id_get(rocker_port
, dev
->ifindex
);
5006 err
= rocker_port_vlan_add(rocker_port
, SWITCHDEV_TRANS_NONE
,
5009 netdev_err(rocker_port
->dev
, "install untagged VLAN failed\n");
5010 goto err_untagged_vlan
;
5016 rocker_port_ig_tbl(rocker_port
, SWITCHDEV_TRANS_NONE
,
5017 ROCKER_OP_FLAG_REMOVE
);
5019 rocker
->ports
[port_number
] = NULL
;
5020 unregister_netdev(dev
);
5021 err_register_netdev
:
5026 static int rocker_probe_ports(struct rocker
*rocker
)
5032 alloc_size
= sizeof(struct rocker_port
*) * rocker
->port_count
;
5033 rocker
->ports
= kzalloc(alloc_size
, GFP_KERNEL
);
5036 for (i
= 0; i
< rocker
->port_count
; i
++) {
5037 err
= rocker_probe_port(rocker
, i
);
5044 rocker_remove_ports(rocker
);
5048 static int rocker_msix_init(struct rocker
*rocker
)
5050 struct pci_dev
*pdev
= rocker
->pdev
;
5055 msix_entries
= pci_msix_vec_count(pdev
);
5056 if (msix_entries
< 0)
5057 return msix_entries
;
5059 if (msix_entries
!= ROCKER_MSIX_VEC_COUNT(rocker
->port_count
))
5062 rocker
->msix_entries
= kmalloc_array(msix_entries
,
5063 sizeof(struct msix_entry
),
5065 if (!rocker
->msix_entries
)
5068 for (i
= 0; i
< msix_entries
; i
++)
5069 rocker
->msix_entries
[i
].entry
= i
;
5071 err
= pci_enable_msix_exact(pdev
, rocker
->msix_entries
, msix_entries
);
5073 goto err_enable_msix
;
5078 kfree(rocker
->msix_entries
);
5082 static void rocker_msix_fini(const struct rocker
*rocker
)
5084 pci_disable_msix(rocker
->pdev
);
5085 kfree(rocker
->msix_entries
);
5088 static int rocker_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
5090 struct rocker
*rocker
;
5093 rocker
= kzalloc(sizeof(*rocker
), GFP_KERNEL
);
5097 err
= pci_enable_device(pdev
);
5099 dev_err(&pdev
->dev
, "pci_enable_device failed\n");
5100 goto err_pci_enable_device
;
5103 err
= pci_request_regions(pdev
, rocker_driver_name
);
5105 dev_err(&pdev
->dev
, "pci_request_regions failed\n");
5106 goto err_pci_request_regions
;
5109 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
5111 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(64));
5113 dev_err(&pdev
->dev
, "pci_set_consistent_dma_mask failed\n");
5114 goto err_pci_set_dma_mask
;
5117 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
5119 dev_err(&pdev
->dev
, "pci_set_dma_mask failed\n");
5120 goto err_pci_set_dma_mask
;
5124 if (pci_resource_len(pdev
, 0) < ROCKER_PCI_BAR0_SIZE
) {
5125 dev_err(&pdev
->dev
, "invalid PCI region size\n");
5127 goto err_pci_resource_len_check
;
5130 rocker
->hw_addr
= ioremap(pci_resource_start(pdev
, 0),
5131 pci_resource_len(pdev
, 0));
5132 if (!rocker
->hw_addr
) {
5133 dev_err(&pdev
->dev
, "ioremap failed\n");
5137 pci_set_master(pdev
);
5139 rocker
->pdev
= pdev
;
5140 pci_set_drvdata(pdev
, rocker
);
5142 rocker
->port_count
= rocker_read32(rocker
, PORT_PHYS_COUNT
);
5144 err
= rocker_msix_init(rocker
);
5146 dev_err(&pdev
->dev
, "MSI-X init failed\n");
5150 err
= rocker_basic_hw_test(rocker
);
5152 dev_err(&pdev
->dev
, "basic hw test failed\n");
5153 goto err_basic_hw_test
;
5156 rocker_write32(rocker
, CONTROL
, ROCKER_CONTROL_RESET
);
5158 err
= rocker_dma_rings_init(rocker
);
5160 goto err_dma_rings_init
;
5162 err
= request_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_CMD
),
5163 rocker_cmd_irq_handler
, 0,
5164 rocker_driver_name
, rocker
);
5166 dev_err(&pdev
->dev
, "cannot assign cmd irq\n");
5167 goto err_request_cmd_irq
;
5170 err
= request_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_EVENT
),
5171 rocker_event_irq_handler
, 0,
5172 rocker_driver_name
, rocker
);
5174 dev_err(&pdev
->dev
, "cannot assign event irq\n");
5175 goto err_request_event_irq
;
5178 rocker
->hw
.id
= rocker_read64(rocker
, SWITCH_ID
);
5180 err
= rocker_init_tbls(rocker
);
5182 dev_err(&pdev
->dev
, "cannot init rocker tables\n");
5186 err
= rocker_probe_ports(rocker
);
5188 dev_err(&pdev
->dev
, "failed to probe ports\n");
5189 goto err_probe_ports
;
5192 dev_info(&pdev
->dev
, "Rocker switch with id %*phN\n",
5193 (int)sizeof(rocker
->hw
.id
), &rocker
->hw
.id
);
5198 rocker_free_tbls(rocker
);
5200 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_EVENT
), rocker
);
5201 err_request_event_irq
:
5202 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_CMD
), rocker
);
5203 err_request_cmd_irq
:
5204 rocker_dma_rings_fini(rocker
);
5207 rocker_msix_fini(rocker
);
5209 iounmap(rocker
->hw_addr
);
5211 err_pci_resource_len_check
:
5212 err_pci_set_dma_mask
:
5213 pci_release_regions(pdev
);
5214 err_pci_request_regions
:
5215 pci_disable_device(pdev
);
5216 err_pci_enable_device
:
5221 static void rocker_remove(struct pci_dev
*pdev
)
5223 struct rocker
*rocker
= pci_get_drvdata(pdev
);
5225 rocker_free_tbls(rocker
);
5226 rocker_write32(rocker
, CONTROL
, ROCKER_CONTROL_RESET
);
5227 rocker_remove_ports(rocker
);
5228 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_EVENT
), rocker
);
5229 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_CMD
), rocker
);
5230 rocker_dma_rings_fini(rocker
);
5231 rocker_msix_fini(rocker
);
5232 iounmap(rocker
->hw_addr
);
5233 pci_release_regions(rocker
->pdev
);
5234 pci_disable_device(rocker
->pdev
);
5238 static struct pci_driver rocker_pci_driver
= {
5239 .name
= rocker_driver_name
,
5240 .id_table
= rocker_pci_id_table
,
5241 .probe
= rocker_probe
,
5242 .remove
= rocker_remove
,
5245 /************************************
5246 * Net device notifier event handler
5247 ************************************/
5249 static bool rocker_port_dev_check(const struct net_device
*dev
)
5251 return dev
->netdev_ops
== &rocker_port_netdev_ops
;
5254 static int rocker_port_bridge_join(struct rocker_port
*rocker_port
,
5255 struct net_device
*bridge
)
5257 u16 untagged_vid
= 0;
5260 /* Port is joining bridge, so the internal VLAN for the
5261 * port is going to change to the bridge internal VLAN.
5262 * Let's remove untagged VLAN (vid=0) from port and
5263 * re-add once internal VLAN has changed.
5266 err
= rocker_port_vlan_del(rocker_port
, untagged_vid
, 0);
5270 rocker_port_internal_vlan_id_put(rocker_port
,
5271 rocker_port
->dev
->ifindex
);
5272 rocker_port
->internal_vlan_id
=
5273 rocker_port_internal_vlan_id_get(rocker_port
, bridge
->ifindex
);
5275 rocker_port
->bridge_dev
= bridge
;
5276 switchdev_port_fwd_mark_set(rocker_port
->dev
, bridge
, true);
5278 return rocker_port_vlan_add(rocker_port
, SWITCHDEV_TRANS_NONE
,
5282 static int rocker_port_bridge_leave(struct rocker_port
*rocker_port
)
5284 u16 untagged_vid
= 0;
5287 err
= rocker_port_vlan_del(rocker_port
, untagged_vid
, 0);
5291 rocker_port_internal_vlan_id_put(rocker_port
,
5292 rocker_port
->bridge_dev
->ifindex
);
5293 rocker_port
->internal_vlan_id
=
5294 rocker_port_internal_vlan_id_get(rocker_port
,
5295 rocker_port
->dev
->ifindex
);
5297 switchdev_port_fwd_mark_set(rocker_port
->dev
, rocker_port
->bridge_dev
,
5299 rocker_port
->bridge_dev
= NULL
;
5301 err
= rocker_port_vlan_add(rocker_port
, SWITCHDEV_TRANS_NONE
,
5306 if (rocker_port
->dev
->flags
& IFF_UP
)
5307 err
= rocker_port_fwd_enable(rocker_port
,
5308 SWITCHDEV_TRANS_NONE
, 0);
5314 static int rocker_port_ovs_changed(struct rocker_port
*rocker_port
,
5315 struct net_device
*master
)
5319 rocker_port
->bridge_dev
= master
;
5321 err
= rocker_port_fwd_disable(rocker_port
, SWITCHDEV_TRANS_NONE
, 0);
5324 err
= rocker_port_fwd_enable(rocker_port
, SWITCHDEV_TRANS_NONE
, 0);
5329 static int rocker_port_master_linked(struct rocker_port
*rocker_port
,
5330 struct net_device
*master
)
5334 if (netif_is_bridge_master(master
))
5335 err
= rocker_port_bridge_join(rocker_port
, master
);
5336 else if (netif_is_ovs_master(master
))
5337 err
= rocker_port_ovs_changed(rocker_port
, master
);
5341 static int rocker_port_master_unlinked(struct rocker_port
*rocker_port
)
5345 if (rocker_port_is_bridged(rocker_port
))
5346 err
= rocker_port_bridge_leave(rocker_port
);
5347 else if (rocker_port_is_ovsed(rocker_port
))
5348 err
= rocker_port_ovs_changed(rocker_port
, NULL
);
5352 static int rocker_netdevice_event(struct notifier_block
*unused
,
5353 unsigned long event
, void *ptr
)
5355 struct net_device
*dev
= netdev_notifier_info_to_dev(ptr
);
5356 struct netdev_notifier_changeupper_info
*info
;
5357 struct rocker_port
*rocker_port
;
5360 if (!rocker_port_dev_check(dev
))
5364 case NETDEV_CHANGEUPPER
:
5368 rocker_port
= netdev_priv(dev
);
5369 if (info
->linking
) {
5370 err
= rocker_port_master_linked(rocker_port
,
5373 netdev_warn(dev
, "failed to reflect master linked (err %d)\n",
5376 err
= rocker_port_master_unlinked(rocker_port
);
5378 netdev_warn(dev
, "failed to reflect master unlinked (err %d)\n",
5387 static struct notifier_block rocker_netdevice_nb __read_mostly
= {
5388 .notifier_call
= rocker_netdevice_event
,
5391 /************************************
5392 * Net event notifier event handler
5393 ************************************/
5395 static int rocker_neigh_update(struct net_device
*dev
, struct neighbour
*n
)
5397 struct rocker_port
*rocker_port
= netdev_priv(dev
);
5398 int flags
= (n
->nud_state
& NUD_VALID
? 0 : ROCKER_OP_FLAG_REMOVE
) |
5399 ROCKER_OP_FLAG_NOWAIT
;
5400 __be32 ip_addr
= *(__be32
*)n
->primary_key
;
5402 return rocker_port_ipv4_neigh(rocker_port
, SWITCHDEV_TRANS_NONE
,
5403 flags
, ip_addr
, n
->ha
);
5406 static int rocker_netevent_event(struct notifier_block
*unused
,
5407 unsigned long event
, void *ptr
)
5409 struct net_device
*dev
;
5410 struct neighbour
*n
= ptr
;
5414 case NETEVENT_NEIGH_UPDATE
:
5415 if (n
->tbl
!= &arp_tbl
)
5418 if (!rocker_port_dev_check(dev
))
5420 err
= rocker_neigh_update(dev
, n
);
5423 "failed to handle neigh update (err %d)\n",
5431 static struct notifier_block rocker_netevent_nb __read_mostly
= {
5432 .notifier_call
= rocker_netevent_event
,
5435 /***********************
5436 * Module init and exit
5437 ***********************/
5439 static int __init
rocker_module_init(void)
5443 register_netdevice_notifier(&rocker_netdevice_nb
);
5444 register_netevent_notifier(&rocker_netevent_nb
);
5445 err
= pci_register_driver(&rocker_pci_driver
);
5447 goto err_pci_register_driver
;
5450 err_pci_register_driver
:
5451 unregister_netevent_notifier(&rocker_netevent_nb
);
5452 unregister_netdevice_notifier(&rocker_netdevice_nb
);
5456 static void __exit
rocker_module_exit(void)
5458 unregister_netevent_notifier(&rocker_netevent_nb
);
5459 unregister_netdevice_notifier(&rocker_netdevice_nb
);
5460 pci_unregister_driver(&rocker_pci_driver
);
5463 module_init(rocker_module_init
);
5464 module_exit(rocker_module_exit
);
5466 MODULE_LICENSE("GPL v2");
5467 MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
5468 MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
5469 MODULE_DESCRIPTION("Rocker switch device driver");
5470 MODULE_DEVICE_TABLE(pci
, rocker_pci_id_table
);