2 * drivers/net/ethernet/rocker/rocker.c - Rocker switch device driver
3 * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
4 * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/pci.h>
15 #include <linux/interrupt.h>
16 #include <linux/sched.h>
17 #include <linux/wait.h>
18 #include <linux/spinlock.h>
19 #include <linux/hashtable.h>
20 #include <linux/crc32.h>
21 #include <linux/sort.h>
22 #include <linux/random.h>
23 #include <linux/netdevice.h>
24 #include <linux/inetdevice.h>
25 #include <linux/skbuff.h>
26 #include <linux/socket.h>
27 #include <linux/etherdevice.h>
28 #include <linux/ethtool.h>
29 #include <linux/if_ether.h>
30 #include <linux/if_vlan.h>
31 #include <linux/if_bridge.h>
32 #include <linux/bitops.h>
33 #include <linux/ctype.h>
34 #include <net/switchdev.h>
35 #include <net/rtnetlink.h>
36 #include <net/ip_fib.h>
37 #include <net/netevent.h>
39 #include <asm-generic/io-64-nonatomic-lo-hi.h>
40 #include <generated/utsrelease.h>
44 static const char rocker_driver_name
[] = "rocker";
46 static const struct pci_device_id rocker_pci_id_table
[] = {
47 {PCI_VDEVICE(REDHAT
, PCI_DEVICE_ID_REDHAT_ROCKER
), 0},
51 struct rocker_flow_tbl_key
{
53 enum rocker_of_dpa_table_id tbl_id
;
58 enum rocker_of_dpa_table_id goto_tbl
;
64 enum rocker_of_dpa_table_id goto_tbl
;
73 u8 eth_dst_mask
[ETH_ALEN
];
76 enum rocker_of_dpa_table_id goto_tbl
;
83 enum rocker_of_dpa_table_id goto_tbl
;
88 u8 eth_dst_mask
[ETH_ALEN
];
93 enum rocker_of_dpa_table_id goto_tbl
;
100 u8 eth_src
[ETH_ALEN
];
101 u8 eth_src_mask
[ETH_ALEN
];
102 u8 eth_dst
[ETH_ALEN
];
103 u8 eth_dst_mask
[ETH_ALEN
];
116 struct rocker_flow_tbl_entry
{
117 struct hlist_node entry
;
120 struct rocker_flow_tbl_key key
;
122 u32 key_crc32
; /* key */
125 struct rocker_group_tbl_entry
{
126 struct hlist_node entry
;
128 u32 group_id
; /* key */
136 u8 eth_src
[ETH_ALEN
];
137 u8 eth_dst
[ETH_ALEN
];
142 u8 eth_src
[ETH_ALEN
];
143 u8 eth_dst
[ETH_ALEN
];
151 struct rocker_fdb_tbl_entry
{
152 struct hlist_node entry
;
153 u32 key_crc32
; /* key */
155 struct rocker_fdb_tbl_key
{
162 struct rocker_internal_vlan_tbl_entry
{
163 struct hlist_node entry
;
164 int ifindex
; /* key */
169 struct rocker_neigh_tbl_entry
{
170 struct hlist_node entry
;
171 __be32 ip_addr
; /* key */
172 struct net_device
*dev
;
175 u8 eth_dst
[ETH_ALEN
];
179 struct rocker_desc_info
{
180 char *data
; /* mapped */
183 struct rocker_desc
*desc
;
184 DEFINE_DMA_UNMAP_ADDR(mapaddr
);
187 struct rocker_dma_ring_info
{
191 struct rocker_desc
*desc
; /* mapped */
193 struct rocker_desc_info
*desc_info
;
200 ROCKER_CTRL_LINK_LOCAL_MCAST
,
201 ROCKER_CTRL_LOCAL_ARP
,
202 ROCKER_CTRL_IPV4_MCAST
,
203 ROCKER_CTRL_IPV6_MCAST
,
204 ROCKER_CTRL_DFLT_BRIDGING
,
208 #define ROCKER_INTERNAL_VLAN_ID_BASE 0x0f00
209 #define ROCKER_N_INTERNAL_VLANS 255
210 #define ROCKER_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID)
211 #define ROCKER_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(ROCKER_N_INTERNAL_VLANS)
214 struct net_device
*dev
;
215 struct net_device
*bridge_dev
;
216 struct rocker
*rocker
;
217 unsigned int port_number
;
219 __be16 internal_vlan_id
;
222 bool ctrls
[ROCKER_CTRL_MAX
];
223 unsigned long vlan_bitmap
[ROCKER_VLAN_BITMAP_LEN
];
224 struct napi_struct napi_tx
;
225 struct napi_struct napi_rx
;
226 struct rocker_dma_ring_info tx_ring
;
227 struct rocker_dma_ring_info rx_ring
;
231 struct pci_dev
*pdev
;
233 struct msix_entry
*msix_entries
;
234 unsigned int port_count
;
235 struct rocker_port
**ports
;
239 spinlock_t cmd_ring_lock
;
240 struct rocker_dma_ring_info cmd_ring
;
241 struct rocker_dma_ring_info event_ring
;
242 DECLARE_HASHTABLE(flow_tbl
, 16);
243 spinlock_t flow_tbl_lock
;
244 u64 flow_tbl_next_cookie
;
245 DECLARE_HASHTABLE(group_tbl
, 16);
246 spinlock_t group_tbl_lock
;
247 DECLARE_HASHTABLE(fdb_tbl
, 16);
248 spinlock_t fdb_tbl_lock
;
249 unsigned long internal_vlan_bitmap
[ROCKER_INTERNAL_VLAN_BITMAP_LEN
];
250 DECLARE_HASHTABLE(internal_vlan_tbl
, 8);
251 spinlock_t internal_vlan_tbl_lock
;
252 DECLARE_HASHTABLE(neigh_tbl
, 16);
253 spinlock_t neigh_tbl_lock
;
254 u32 neigh_tbl_next_index
;
257 static const u8 zero_mac
[ETH_ALEN
] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
258 static const u8 ff_mac
[ETH_ALEN
] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
259 static const u8 ll_mac
[ETH_ALEN
] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
260 static const u8 ll_mask
[ETH_ALEN
] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
261 static const u8 mcast_mac
[ETH_ALEN
] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
262 static const u8 ipv4_mcast
[ETH_ALEN
] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
263 static const u8 ipv4_mask
[ETH_ALEN
] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
264 static const u8 ipv6_mcast
[ETH_ALEN
] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
265 static const u8 ipv6_mask
[ETH_ALEN
] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
267 /* Rocker priority levels for flow table entries. Higher
268 * priority match takes precedence over lower priority match.
272 ROCKER_PRIORITY_UNKNOWN
= 0,
273 ROCKER_PRIORITY_IG_PORT
= 1,
274 ROCKER_PRIORITY_VLAN
= 1,
275 ROCKER_PRIORITY_TERM_MAC_UCAST
= 0,
276 ROCKER_PRIORITY_TERM_MAC_MCAST
= 1,
277 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT
= 1,
278 ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD
= 2,
279 ROCKER_PRIORITY_BRIDGING_VLAN
= 3,
280 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT
= 1,
281 ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD
= 2,
282 ROCKER_PRIORITY_BRIDGING_TENANT
= 3,
283 ROCKER_PRIORITY_ACL_CTRL
= 3,
284 ROCKER_PRIORITY_ACL_NORMAL
= 2,
285 ROCKER_PRIORITY_ACL_DFLT
= 1,
288 static bool rocker_vlan_id_is_internal(__be16 vlan_id
)
290 u16 start
= ROCKER_INTERNAL_VLAN_ID_BASE
;
292 u16 _vlan_id
= ntohs(vlan_id
);
294 return (_vlan_id
>= start
&& _vlan_id
<= end
);
297 static __be16
rocker_port_vid_to_vlan(struct rocker_port
*rocker_port
,
298 u16 vid
, bool *pop_vlan
)
304 vlan_id
= htons(vid
);
306 vlan_id
= rocker_port
->internal_vlan_id
;
314 static u16
rocker_port_vlan_to_vid(struct rocker_port
*rocker_port
,
317 if (rocker_vlan_id_is_internal(vlan_id
))
320 return ntohs(vlan_id
);
323 static bool rocker_port_is_bridged(struct rocker_port
*rocker_port
)
325 return !!rocker_port
->bridge_dev
;
329 wait_queue_head_t wait
;
334 static void rocker_wait_reset(struct rocker_wait
*wait
)
337 wait
->nowait
= false;
340 static void rocker_wait_init(struct rocker_wait
*wait
)
342 init_waitqueue_head(&wait
->wait
);
343 rocker_wait_reset(wait
);
346 static struct rocker_wait
*rocker_wait_create(gfp_t gfp
)
348 struct rocker_wait
*wait
;
350 wait
= kmalloc(sizeof(*wait
), gfp
);
353 rocker_wait_init(wait
);
357 static void rocker_wait_destroy(struct rocker_wait
*work
)
362 static bool rocker_wait_event_timeout(struct rocker_wait
*wait
,
363 unsigned long timeout
)
365 wait_event_timeout(wait
->wait
, wait
->done
, HZ
/ 10);
371 static void rocker_wait_wake_up(struct rocker_wait
*wait
)
374 wake_up(&wait
->wait
);
377 static u32
rocker_msix_vector(struct rocker
*rocker
, unsigned int vector
)
379 return rocker
->msix_entries
[vector
].vector
;
382 static u32
rocker_msix_tx_vector(struct rocker_port
*rocker_port
)
384 return rocker_msix_vector(rocker_port
->rocker
,
385 ROCKER_MSIX_VEC_TX(rocker_port
->port_number
));
388 static u32
rocker_msix_rx_vector(struct rocker_port
*rocker_port
)
390 return rocker_msix_vector(rocker_port
->rocker
,
391 ROCKER_MSIX_VEC_RX(rocker_port
->port_number
));
394 #define rocker_write32(rocker, reg, val) \
395 writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))
396 #define rocker_read32(rocker, reg) \
397 readl((rocker)->hw_addr + (ROCKER_ ## reg))
398 #define rocker_write64(rocker, reg, val) \
399 writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))
400 #define rocker_read64(rocker, reg) \
401 readq((rocker)->hw_addr + (ROCKER_ ## reg))
403 /*****************************
404 * HW basic testing functions
405 *****************************/
407 static int rocker_reg_test(struct rocker
*rocker
)
409 struct pci_dev
*pdev
= rocker
->pdev
;
415 rocker_write32(rocker
, TEST_REG
, rnd
);
416 test_reg
= rocker_read32(rocker
, TEST_REG
);
417 if (test_reg
!= rnd
* 2) {
418 dev_err(&pdev
->dev
, "unexpected 32bit register value %08llx, expected %08llx\n",
425 rnd
|= prandom_u32();
426 rocker_write64(rocker
, TEST_REG64
, rnd
);
427 test_reg
= rocker_read64(rocker
, TEST_REG64
);
428 if (test_reg
!= rnd
* 2) {
429 dev_err(&pdev
->dev
, "unexpected 64bit register value %16llx, expected %16llx\n",
437 static int rocker_dma_test_one(struct rocker
*rocker
, struct rocker_wait
*wait
,
438 u32 test_type
, dma_addr_t dma_handle
,
439 unsigned char *buf
, unsigned char *expect
,
442 struct pci_dev
*pdev
= rocker
->pdev
;
445 rocker_wait_reset(wait
);
446 rocker_write32(rocker
, TEST_DMA_CTRL
, test_type
);
448 if (!rocker_wait_event_timeout(wait
, HZ
/ 10)) {
449 dev_err(&pdev
->dev
, "no interrupt received within a timeout\n");
453 for (i
= 0; i
< size
; i
++) {
454 if (buf
[i
] != expect
[i
]) {
455 dev_err(&pdev
->dev
, "unexpected memory content %02x at byte %x\n, %02x expected",
456 buf
[i
], i
, expect
[i
]);
463 #define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)
464 #define ROCKER_TEST_DMA_FILL_PATTERN 0x96
466 static int rocker_dma_test_offset(struct rocker
*rocker
,
467 struct rocker_wait
*wait
, int offset
)
469 struct pci_dev
*pdev
= rocker
->pdev
;
470 unsigned char *alloc
;
472 unsigned char *expect
;
473 dma_addr_t dma_handle
;
477 alloc
= kzalloc(ROCKER_TEST_DMA_BUF_SIZE
* 2 + offset
,
478 GFP_KERNEL
| GFP_DMA
);
481 buf
= alloc
+ offset
;
482 expect
= buf
+ ROCKER_TEST_DMA_BUF_SIZE
;
484 dma_handle
= pci_map_single(pdev
, buf
, ROCKER_TEST_DMA_BUF_SIZE
,
485 PCI_DMA_BIDIRECTIONAL
);
486 if (pci_dma_mapping_error(pdev
, dma_handle
)) {
491 rocker_write64(rocker
, TEST_DMA_ADDR
, dma_handle
);
492 rocker_write32(rocker
, TEST_DMA_SIZE
, ROCKER_TEST_DMA_BUF_SIZE
);
494 memset(expect
, ROCKER_TEST_DMA_FILL_PATTERN
, ROCKER_TEST_DMA_BUF_SIZE
);
495 err
= rocker_dma_test_one(rocker
, wait
, ROCKER_TEST_DMA_CTRL_FILL
,
496 dma_handle
, buf
, expect
,
497 ROCKER_TEST_DMA_BUF_SIZE
);
501 memset(expect
, 0, ROCKER_TEST_DMA_BUF_SIZE
);
502 err
= rocker_dma_test_one(rocker
, wait
, ROCKER_TEST_DMA_CTRL_CLEAR
,
503 dma_handle
, buf
, expect
,
504 ROCKER_TEST_DMA_BUF_SIZE
);
508 prandom_bytes(buf
, ROCKER_TEST_DMA_BUF_SIZE
);
509 for (i
= 0; i
< ROCKER_TEST_DMA_BUF_SIZE
; i
++)
511 err
= rocker_dma_test_one(rocker
, wait
, ROCKER_TEST_DMA_CTRL_INVERT
,
512 dma_handle
, buf
, expect
,
513 ROCKER_TEST_DMA_BUF_SIZE
);
518 pci_unmap_single(pdev
, dma_handle
, ROCKER_TEST_DMA_BUF_SIZE
,
519 PCI_DMA_BIDIRECTIONAL
);
526 static int rocker_dma_test(struct rocker
*rocker
, struct rocker_wait
*wait
)
531 for (i
= 0; i
< 8; i
++) {
532 err
= rocker_dma_test_offset(rocker
, wait
, i
);
539 static irqreturn_t
rocker_test_irq_handler(int irq
, void *dev_id
)
541 struct rocker_wait
*wait
= dev_id
;
543 rocker_wait_wake_up(wait
);
548 static int rocker_basic_hw_test(struct rocker
*rocker
)
550 struct pci_dev
*pdev
= rocker
->pdev
;
551 struct rocker_wait wait
;
554 err
= rocker_reg_test(rocker
);
556 dev_err(&pdev
->dev
, "reg test failed\n");
560 err
= request_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_TEST
),
561 rocker_test_irq_handler
, 0,
562 rocker_driver_name
, &wait
);
564 dev_err(&pdev
->dev
, "cannot assign test irq\n");
568 rocker_wait_init(&wait
);
569 rocker_write32(rocker
, TEST_IRQ
, ROCKER_MSIX_VEC_TEST
);
571 if (!rocker_wait_event_timeout(&wait
, HZ
/ 10)) {
572 dev_err(&pdev
->dev
, "no interrupt received within a timeout\n");
577 err
= rocker_dma_test(rocker
, &wait
);
579 dev_err(&pdev
->dev
, "dma test failed\n");
582 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_TEST
), &wait
);
590 #define ROCKER_TLV_ALIGNTO 8U
591 #define ROCKER_TLV_ALIGN(len) \
592 (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
593 #define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
595 /* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
596 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
597 * | Header | Pad | Payload | Pad |
598 * | (struct rocker_tlv) | ing | | ing |
599 * +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
600 * <--------------------------- tlv->len -------------------------->
603 static struct rocker_tlv
*rocker_tlv_next(const struct rocker_tlv
*tlv
,
606 int totlen
= ROCKER_TLV_ALIGN(tlv
->len
);
608 *remaining
-= totlen
;
609 return (struct rocker_tlv
*) ((char *) tlv
+ totlen
);
612 static int rocker_tlv_ok(const struct rocker_tlv
*tlv
, int remaining
)
614 return remaining
>= (int) ROCKER_TLV_HDRLEN
&&
615 tlv
->len
>= ROCKER_TLV_HDRLEN
&&
616 tlv
->len
<= remaining
;
619 #define rocker_tlv_for_each(pos, head, len, rem) \
620 for (pos = head, rem = len; \
621 rocker_tlv_ok(pos, rem); \
622 pos = rocker_tlv_next(pos, &(rem)))
624 #define rocker_tlv_for_each_nested(pos, tlv, rem) \
625 rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
626 rocker_tlv_len(tlv), rem)
628 static int rocker_tlv_attr_size(int payload
)
630 return ROCKER_TLV_HDRLEN
+ payload
;
633 static int rocker_tlv_total_size(int payload
)
635 return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload
));
638 static int rocker_tlv_padlen(int payload
)
640 return rocker_tlv_total_size(payload
) - rocker_tlv_attr_size(payload
);
643 static int rocker_tlv_type(const struct rocker_tlv
*tlv
)
648 static void *rocker_tlv_data(const struct rocker_tlv
*tlv
)
650 return (char *) tlv
+ ROCKER_TLV_HDRLEN
;
653 static int rocker_tlv_len(const struct rocker_tlv
*tlv
)
655 return tlv
->len
- ROCKER_TLV_HDRLEN
;
658 static u8
rocker_tlv_get_u8(const struct rocker_tlv
*tlv
)
660 return *(u8
*) rocker_tlv_data(tlv
);
663 static u16
rocker_tlv_get_u16(const struct rocker_tlv
*tlv
)
665 return *(u16
*) rocker_tlv_data(tlv
);
668 static __be16
rocker_tlv_get_be16(const struct rocker_tlv
*tlv
)
670 return *(__be16
*) rocker_tlv_data(tlv
);
673 static u32
rocker_tlv_get_u32(const struct rocker_tlv
*tlv
)
675 return *(u32
*) rocker_tlv_data(tlv
);
678 static u64
rocker_tlv_get_u64(const struct rocker_tlv
*tlv
)
680 return *(u64
*) rocker_tlv_data(tlv
);
683 static void rocker_tlv_parse(struct rocker_tlv
**tb
, int maxtype
,
684 const char *buf
, int buf_len
)
686 const struct rocker_tlv
*tlv
;
687 const struct rocker_tlv
*head
= (const struct rocker_tlv
*) buf
;
690 memset(tb
, 0, sizeof(struct rocker_tlv
*) * (maxtype
+ 1));
692 rocker_tlv_for_each(tlv
, head
, buf_len
, rem
) {
693 u32 type
= rocker_tlv_type(tlv
);
695 if (type
> 0 && type
<= maxtype
)
696 tb
[type
] = (struct rocker_tlv
*) tlv
;
700 static void rocker_tlv_parse_nested(struct rocker_tlv
**tb
, int maxtype
,
701 const struct rocker_tlv
*tlv
)
703 rocker_tlv_parse(tb
, maxtype
, rocker_tlv_data(tlv
),
704 rocker_tlv_len(tlv
));
707 static void rocker_tlv_parse_desc(struct rocker_tlv
**tb
, int maxtype
,
708 struct rocker_desc_info
*desc_info
)
710 rocker_tlv_parse(tb
, maxtype
, desc_info
->data
,
711 desc_info
->desc
->tlv_size
);
714 static struct rocker_tlv
*rocker_tlv_start(struct rocker_desc_info
*desc_info
)
716 return (struct rocker_tlv
*) ((char *) desc_info
->data
+
717 desc_info
->tlv_size
);
720 static int rocker_tlv_put(struct rocker_desc_info
*desc_info
,
721 int attrtype
, int attrlen
, const void *data
)
723 int tail_room
= desc_info
->data_size
- desc_info
->tlv_size
;
724 int total_size
= rocker_tlv_total_size(attrlen
);
725 struct rocker_tlv
*tlv
;
727 if (unlikely(tail_room
< total_size
))
730 tlv
= rocker_tlv_start(desc_info
);
731 desc_info
->tlv_size
+= total_size
;
732 tlv
->type
= attrtype
;
733 tlv
->len
= rocker_tlv_attr_size(attrlen
);
734 memcpy(rocker_tlv_data(tlv
), data
, attrlen
);
735 memset((char *) tlv
+ tlv
->len
, 0, rocker_tlv_padlen(attrlen
));
739 static int rocker_tlv_put_u8(struct rocker_desc_info
*desc_info
,
740 int attrtype
, u8 value
)
742 return rocker_tlv_put(desc_info
, attrtype
, sizeof(u8
), &value
);
745 static int rocker_tlv_put_u16(struct rocker_desc_info
*desc_info
,
746 int attrtype
, u16 value
)
748 return rocker_tlv_put(desc_info
, attrtype
, sizeof(u16
), &value
);
751 static int rocker_tlv_put_be16(struct rocker_desc_info
*desc_info
,
752 int attrtype
, __be16 value
)
754 return rocker_tlv_put(desc_info
, attrtype
, sizeof(__be16
), &value
);
757 static int rocker_tlv_put_u32(struct rocker_desc_info
*desc_info
,
758 int attrtype
, u32 value
)
760 return rocker_tlv_put(desc_info
, attrtype
, sizeof(u32
), &value
);
763 static int rocker_tlv_put_be32(struct rocker_desc_info
*desc_info
,
764 int attrtype
, __be32 value
)
766 return rocker_tlv_put(desc_info
, attrtype
, sizeof(__be32
), &value
);
769 static int rocker_tlv_put_u64(struct rocker_desc_info
*desc_info
,
770 int attrtype
, u64 value
)
772 return rocker_tlv_put(desc_info
, attrtype
, sizeof(u64
), &value
);
775 static struct rocker_tlv
*
776 rocker_tlv_nest_start(struct rocker_desc_info
*desc_info
, int attrtype
)
778 struct rocker_tlv
*start
= rocker_tlv_start(desc_info
);
780 if (rocker_tlv_put(desc_info
, attrtype
, 0, NULL
) < 0)
786 static void rocker_tlv_nest_end(struct rocker_desc_info
*desc_info
,
787 struct rocker_tlv
*start
)
789 start
->len
= (char *) rocker_tlv_start(desc_info
) - (char *) start
;
792 static void rocker_tlv_nest_cancel(struct rocker_desc_info
*desc_info
,
793 struct rocker_tlv
*start
)
795 desc_info
->tlv_size
= (char *) start
- desc_info
->data
;
798 /******************************************
799 * DMA rings and descriptors manipulations
800 ******************************************/
802 static u32
__pos_inc(u32 pos
, size_t limit
)
804 return ++pos
== limit
? 0 : pos
;
807 static int rocker_desc_err(struct rocker_desc_info
*desc_info
)
809 int err
= desc_info
->desc
->comp_err
& ~ROCKER_DMA_DESC_COMP_ERR_GEN
;
824 case -ROCKER_EMSGSIZE
:
826 case -ROCKER_ENOTSUP
:
828 case -ROCKER_ENOBUFS
:
835 static void rocker_desc_gen_clear(struct rocker_desc_info
*desc_info
)
837 desc_info
->desc
->comp_err
&= ~ROCKER_DMA_DESC_COMP_ERR_GEN
;
840 static bool rocker_desc_gen(struct rocker_desc_info
*desc_info
)
842 u32 comp_err
= desc_info
->desc
->comp_err
;
844 return comp_err
& ROCKER_DMA_DESC_COMP_ERR_GEN
? true : false;
847 static void *rocker_desc_cookie_ptr_get(struct rocker_desc_info
*desc_info
)
849 return (void *)(uintptr_t)desc_info
->desc
->cookie
;
852 static void rocker_desc_cookie_ptr_set(struct rocker_desc_info
*desc_info
,
855 desc_info
->desc
->cookie
= (uintptr_t) ptr
;
858 static struct rocker_desc_info
*
859 rocker_desc_head_get(struct rocker_dma_ring_info
*info
)
861 static struct rocker_desc_info
*desc_info
;
862 u32 head
= __pos_inc(info
->head
, info
->size
);
864 desc_info
= &info
->desc_info
[info
->head
];
865 if (head
== info
->tail
)
866 return NULL
; /* ring full */
867 desc_info
->tlv_size
= 0;
871 static void rocker_desc_commit(struct rocker_desc_info
*desc_info
)
873 desc_info
->desc
->buf_size
= desc_info
->data_size
;
874 desc_info
->desc
->tlv_size
= desc_info
->tlv_size
;
877 static void rocker_desc_head_set(struct rocker
*rocker
,
878 struct rocker_dma_ring_info
*info
,
879 struct rocker_desc_info
*desc_info
)
881 u32 head
= __pos_inc(info
->head
, info
->size
);
883 BUG_ON(head
== info
->tail
);
884 rocker_desc_commit(desc_info
);
886 rocker_write32(rocker
, DMA_DESC_HEAD(info
->type
), head
);
889 static struct rocker_desc_info
*
890 rocker_desc_tail_get(struct rocker_dma_ring_info
*info
)
892 static struct rocker_desc_info
*desc_info
;
894 if (info
->tail
== info
->head
)
895 return NULL
; /* nothing to be done between head and tail */
896 desc_info
= &info
->desc_info
[info
->tail
];
897 if (!rocker_desc_gen(desc_info
))
898 return NULL
; /* gen bit not set, desc is not ready yet */
899 info
->tail
= __pos_inc(info
->tail
, info
->size
);
900 desc_info
->tlv_size
= desc_info
->desc
->tlv_size
;
904 static void rocker_dma_ring_credits_set(struct rocker
*rocker
,
905 struct rocker_dma_ring_info
*info
,
909 rocker_write32(rocker
, DMA_DESC_CREDITS(info
->type
), credits
);
912 static unsigned long rocker_dma_ring_size_fix(size_t size
)
914 return max(ROCKER_DMA_SIZE_MIN
,
915 min(roundup_pow_of_two(size
), ROCKER_DMA_SIZE_MAX
));
918 static int rocker_dma_ring_create(struct rocker
*rocker
,
921 struct rocker_dma_ring_info
*info
)
925 BUG_ON(size
!= rocker_dma_ring_size_fix(size
));
930 info
->desc_info
= kcalloc(info
->size
, sizeof(*info
->desc_info
),
932 if (!info
->desc_info
)
935 info
->desc
= pci_alloc_consistent(rocker
->pdev
,
936 info
->size
* sizeof(*info
->desc
),
939 kfree(info
->desc_info
);
943 for (i
= 0; i
< info
->size
; i
++)
944 info
->desc_info
[i
].desc
= &info
->desc
[i
];
946 rocker_write32(rocker
, DMA_DESC_CTRL(info
->type
),
947 ROCKER_DMA_DESC_CTRL_RESET
);
948 rocker_write64(rocker
, DMA_DESC_ADDR(info
->type
), info
->mapaddr
);
949 rocker_write32(rocker
, DMA_DESC_SIZE(info
->type
), info
->size
);
954 static void rocker_dma_ring_destroy(struct rocker
*rocker
,
955 struct rocker_dma_ring_info
*info
)
957 rocker_write64(rocker
, DMA_DESC_ADDR(info
->type
), 0);
959 pci_free_consistent(rocker
->pdev
,
960 info
->size
* sizeof(struct rocker_desc
),
961 info
->desc
, info
->mapaddr
);
962 kfree(info
->desc_info
);
965 static void rocker_dma_ring_pass_to_producer(struct rocker
*rocker
,
966 struct rocker_dma_ring_info
*info
)
970 BUG_ON(info
->head
|| info
->tail
);
972 /* When ring is consumer, we need to advance head for each desc.
973 * That tells hw that the desc is ready to be used by it.
975 for (i
= 0; i
< info
->size
- 1; i
++)
976 rocker_desc_head_set(rocker
, info
, &info
->desc_info
[i
]);
977 rocker_desc_commit(&info
->desc_info
[i
]);
980 static int rocker_dma_ring_bufs_alloc(struct rocker
*rocker
,
981 struct rocker_dma_ring_info
*info
,
982 int direction
, size_t buf_size
)
984 struct pci_dev
*pdev
= rocker
->pdev
;
988 for (i
= 0; i
< info
->size
; i
++) {
989 struct rocker_desc_info
*desc_info
= &info
->desc_info
[i
];
990 struct rocker_desc
*desc
= &info
->desc
[i
];
991 dma_addr_t dma_handle
;
994 buf
= kzalloc(buf_size
, GFP_KERNEL
| GFP_DMA
);
1000 dma_handle
= pci_map_single(pdev
, buf
, buf_size
, direction
);
1001 if (pci_dma_mapping_error(pdev
, dma_handle
)) {
1007 desc_info
->data
= buf
;
1008 desc_info
->data_size
= buf_size
;
1009 dma_unmap_addr_set(desc_info
, mapaddr
, dma_handle
);
1011 desc
->buf_addr
= dma_handle
;
1012 desc
->buf_size
= buf_size
;
1017 for (i
--; i
>= 0; i
--) {
1018 struct rocker_desc_info
*desc_info
= &info
->desc_info
[i
];
1020 pci_unmap_single(pdev
, dma_unmap_addr(desc_info
, mapaddr
),
1021 desc_info
->data_size
, direction
);
1022 kfree(desc_info
->data
);
1027 static void rocker_dma_ring_bufs_free(struct rocker
*rocker
,
1028 struct rocker_dma_ring_info
*info
,
1031 struct pci_dev
*pdev
= rocker
->pdev
;
1034 for (i
= 0; i
< info
->size
; i
++) {
1035 struct rocker_desc_info
*desc_info
= &info
->desc_info
[i
];
1036 struct rocker_desc
*desc
= &info
->desc
[i
];
1040 pci_unmap_single(pdev
, dma_unmap_addr(desc_info
, mapaddr
),
1041 desc_info
->data_size
, direction
);
1042 kfree(desc_info
->data
);
1046 static int rocker_dma_rings_init(struct rocker
*rocker
)
1048 struct pci_dev
*pdev
= rocker
->pdev
;
1051 err
= rocker_dma_ring_create(rocker
, ROCKER_DMA_CMD
,
1052 ROCKER_DMA_CMD_DEFAULT_SIZE
,
1055 dev_err(&pdev
->dev
, "failed to create command dma ring\n");
1059 spin_lock_init(&rocker
->cmd_ring_lock
);
1061 err
= rocker_dma_ring_bufs_alloc(rocker
, &rocker
->cmd_ring
,
1062 PCI_DMA_BIDIRECTIONAL
, PAGE_SIZE
);
1064 dev_err(&pdev
->dev
, "failed to alloc command dma ring buffers\n");
1065 goto err_dma_cmd_ring_bufs_alloc
;
1068 err
= rocker_dma_ring_create(rocker
, ROCKER_DMA_EVENT
,
1069 ROCKER_DMA_EVENT_DEFAULT_SIZE
,
1070 &rocker
->event_ring
);
1072 dev_err(&pdev
->dev
, "failed to create event dma ring\n");
1073 goto err_dma_event_ring_create
;
1076 err
= rocker_dma_ring_bufs_alloc(rocker
, &rocker
->event_ring
,
1077 PCI_DMA_FROMDEVICE
, PAGE_SIZE
);
1079 dev_err(&pdev
->dev
, "failed to alloc event dma ring buffers\n");
1080 goto err_dma_event_ring_bufs_alloc
;
1082 rocker_dma_ring_pass_to_producer(rocker
, &rocker
->event_ring
);
1085 err_dma_event_ring_bufs_alloc
:
1086 rocker_dma_ring_destroy(rocker
, &rocker
->event_ring
);
1087 err_dma_event_ring_create
:
1088 rocker_dma_ring_bufs_free(rocker
, &rocker
->cmd_ring
,
1089 PCI_DMA_BIDIRECTIONAL
);
1090 err_dma_cmd_ring_bufs_alloc
:
1091 rocker_dma_ring_destroy(rocker
, &rocker
->cmd_ring
);
1095 static void rocker_dma_rings_fini(struct rocker
*rocker
)
1097 rocker_dma_ring_bufs_free(rocker
, &rocker
->event_ring
,
1098 PCI_DMA_BIDIRECTIONAL
);
1099 rocker_dma_ring_destroy(rocker
, &rocker
->event_ring
);
1100 rocker_dma_ring_bufs_free(rocker
, &rocker
->cmd_ring
,
1101 PCI_DMA_BIDIRECTIONAL
);
1102 rocker_dma_ring_destroy(rocker
, &rocker
->cmd_ring
);
1105 static int rocker_dma_rx_ring_skb_map(struct rocker
*rocker
,
1106 struct rocker_port
*rocker_port
,
1107 struct rocker_desc_info
*desc_info
,
1108 struct sk_buff
*skb
, size_t buf_len
)
1110 struct pci_dev
*pdev
= rocker
->pdev
;
1111 dma_addr_t dma_handle
;
1113 dma_handle
= pci_map_single(pdev
, skb
->data
, buf_len
,
1114 PCI_DMA_FROMDEVICE
);
1115 if (pci_dma_mapping_error(pdev
, dma_handle
))
1117 if (rocker_tlv_put_u64(desc_info
, ROCKER_TLV_RX_FRAG_ADDR
, dma_handle
))
1118 goto tlv_put_failure
;
1119 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_RX_FRAG_MAX_LEN
, buf_len
))
1120 goto tlv_put_failure
;
1124 pci_unmap_single(pdev
, dma_handle
, buf_len
, PCI_DMA_FROMDEVICE
);
1125 desc_info
->tlv_size
= 0;
1129 static size_t rocker_port_rx_buf_len(struct rocker_port
*rocker_port
)
1131 return rocker_port
->dev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
1134 static int rocker_dma_rx_ring_skb_alloc(struct rocker
*rocker
,
1135 struct rocker_port
*rocker_port
,
1136 struct rocker_desc_info
*desc_info
)
1138 struct net_device
*dev
= rocker_port
->dev
;
1139 struct sk_buff
*skb
;
1140 size_t buf_len
= rocker_port_rx_buf_len(rocker_port
);
1143 /* Ensure that hw will see tlv_size zero in case of an error.
1144 * That tells hw to use another descriptor.
1146 rocker_desc_cookie_ptr_set(desc_info
, NULL
);
1147 desc_info
->tlv_size
= 0;
1149 skb
= netdev_alloc_skb_ip_align(dev
, buf_len
);
1152 err
= rocker_dma_rx_ring_skb_map(rocker
, rocker_port
, desc_info
,
1155 dev_kfree_skb_any(skb
);
1158 rocker_desc_cookie_ptr_set(desc_info
, skb
);
1162 static void rocker_dma_rx_ring_skb_unmap(struct rocker
*rocker
,
1163 struct rocker_tlv
**attrs
)
1165 struct pci_dev
*pdev
= rocker
->pdev
;
1166 dma_addr_t dma_handle
;
1169 if (!attrs
[ROCKER_TLV_RX_FRAG_ADDR
] ||
1170 !attrs
[ROCKER_TLV_RX_FRAG_MAX_LEN
])
1172 dma_handle
= rocker_tlv_get_u64(attrs
[ROCKER_TLV_RX_FRAG_ADDR
]);
1173 len
= rocker_tlv_get_u16(attrs
[ROCKER_TLV_RX_FRAG_MAX_LEN
]);
1174 pci_unmap_single(pdev
, dma_handle
, len
, PCI_DMA_FROMDEVICE
);
1177 static void rocker_dma_rx_ring_skb_free(struct rocker
*rocker
,
1178 struct rocker_desc_info
*desc_info
)
1180 struct rocker_tlv
*attrs
[ROCKER_TLV_RX_MAX
+ 1];
1181 struct sk_buff
*skb
= rocker_desc_cookie_ptr_get(desc_info
);
1185 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_RX_MAX
, desc_info
);
1186 rocker_dma_rx_ring_skb_unmap(rocker
, attrs
);
1187 dev_kfree_skb_any(skb
);
1190 static int rocker_dma_rx_ring_skbs_alloc(struct rocker
*rocker
,
1191 struct rocker_port
*rocker_port
)
1193 struct rocker_dma_ring_info
*rx_ring
= &rocker_port
->rx_ring
;
1197 for (i
= 0; i
< rx_ring
->size
; i
++) {
1198 err
= rocker_dma_rx_ring_skb_alloc(rocker
, rocker_port
,
1199 &rx_ring
->desc_info
[i
]);
1206 for (i
--; i
>= 0; i
--)
1207 rocker_dma_rx_ring_skb_free(rocker
, &rx_ring
->desc_info
[i
]);
1211 static void rocker_dma_rx_ring_skbs_free(struct rocker
*rocker
,
1212 struct rocker_port
*rocker_port
)
1214 struct rocker_dma_ring_info
*rx_ring
= &rocker_port
->rx_ring
;
1217 for (i
= 0; i
< rx_ring
->size
; i
++)
1218 rocker_dma_rx_ring_skb_free(rocker
, &rx_ring
->desc_info
[i
]);
1221 static int rocker_port_dma_rings_init(struct rocker_port
*rocker_port
)
1223 struct rocker
*rocker
= rocker_port
->rocker
;
1226 err
= rocker_dma_ring_create(rocker
,
1227 ROCKER_DMA_TX(rocker_port
->port_number
),
1228 ROCKER_DMA_TX_DEFAULT_SIZE
,
1229 &rocker_port
->tx_ring
);
1231 netdev_err(rocker_port
->dev
, "failed to create tx dma ring\n");
1235 err
= rocker_dma_ring_bufs_alloc(rocker
, &rocker_port
->tx_ring
,
1237 ROCKER_DMA_TX_DESC_SIZE
);
1239 netdev_err(rocker_port
->dev
, "failed to alloc tx dma ring buffers\n");
1240 goto err_dma_tx_ring_bufs_alloc
;
1243 err
= rocker_dma_ring_create(rocker
,
1244 ROCKER_DMA_RX(rocker_port
->port_number
),
1245 ROCKER_DMA_RX_DEFAULT_SIZE
,
1246 &rocker_port
->rx_ring
);
1248 netdev_err(rocker_port
->dev
, "failed to create rx dma ring\n");
1249 goto err_dma_rx_ring_create
;
1252 err
= rocker_dma_ring_bufs_alloc(rocker
, &rocker_port
->rx_ring
,
1253 PCI_DMA_BIDIRECTIONAL
,
1254 ROCKER_DMA_RX_DESC_SIZE
);
1256 netdev_err(rocker_port
->dev
, "failed to alloc rx dma ring buffers\n");
1257 goto err_dma_rx_ring_bufs_alloc
;
1260 err
= rocker_dma_rx_ring_skbs_alloc(rocker
, rocker_port
);
1262 netdev_err(rocker_port
->dev
, "failed to alloc rx dma ring skbs\n");
1263 goto err_dma_rx_ring_skbs_alloc
;
1265 rocker_dma_ring_pass_to_producer(rocker
, &rocker_port
->rx_ring
);
1269 err_dma_rx_ring_skbs_alloc
:
1270 rocker_dma_ring_bufs_free(rocker
, &rocker_port
->rx_ring
,
1271 PCI_DMA_BIDIRECTIONAL
);
1272 err_dma_rx_ring_bufs_alloc
:
1273 rocker_dma_ring_destroy(rocker
, &rocker_port
->rx_ring
);
1274 err_dma_rx_ring_create
:
1275 rocker_dma_ring_bufs_free(rocker
, &rocker_port
->tx_ring
,
1277 err_dma_tx_ring_bufs_alloc
:
1278 rocker_dma_ring_destroy(rocker
, &rocker_port
->tx_ring
);
1282 static void rocker_port_dma_rings_fini(struct rocker_port
*rocker_port
)
1284 struct rocker
*rocker
= rocker_port
->rocker
;
1286 rocker_dma_rx_ring_skbs_free(rocker
, rocker_port
);
1287 rocker_dma_ring_bufs_free(rocker
, &rocker_port
->rx_ring
,
1288 PCI_DMA_BIDIRECTIONAL
);
1289 rocker_dma_ring_destroy(rocker
, &rocker_port
->rx_ring
);
1290 rocker_dma_ring_bufs_free(rocker
, &rocker_port
->tx_ring
,
1292 rocker_dma_ring_destroy(rocker
, &rocker_port
->tx_ring
);
1295 static void rocker_port_set_enable(struct rocker_port
*rocker_port
, bool enable
)
1297 u64 val
= rocker_read64(rocker_port
->rocker
, PORT_PHYS_ENABLE
);
1300 val
|= 1ULL << rocker_port
->pport
;
1302 val
&= ~(1ULL << rocker_port
->pport
);
1303 rocker_write64(rocker_port
->rocker
, PORT_PHYS_ENABLE
, val
);
1306 /********************************
1307 * Interrupt handler and helpers
1308 ********************************/
1310 static irqreturn_t
rocker_cmd_irq_handler(int irq
, void *dev_id
)
1312 struct rocker
*rocker
= dev_id
;
1313 struct rocker_desc_info
*desc_info
;
1314 struct rocker_wait
*wait
;
1317 spin_lock(&rocker
->cmd_ring_lock
);
1318 while ((desc_info
= rocker_desc_tail_get(&rocker
->cmd_ring
))) {
1319 wait
= rocker_desc_cookie_ptr_get(desc_info
);
1321 rocker_desc_gen_clear(desc_info
);
1322 rocker_wait_destroy(wait
);
1324 rocker_wait_wake_up(wait
);
1328 spin_unlock(&rocker
->cmd_ring_lock
);
1329 rocker_dma_ring_credits_set(rocker
, &rocker
->cmd_ring
, credits
);
1334 static void rocker_port_link_up(struct rocker_port
*rocker_port
)
1336 netif_carrier_on(rocker_port
->dev
);
1337 netdev_info(rocker_port
->dev
, "Link is up\n");
1340 static void rocker_port_link_down(struct rocker_port
*rocker_port
)
1342 netif_carrier_off(rocker_port
->dev
);
1343 netdev_info(rocker_port
->dev
, "Link is down\n");
1346 static int rocker_event_link_change(struct rocker
*rocker
,
1347 const struct rocker_tlv
*info
)
1349 struct rocker_tlv
*attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_MAX
+ 1];
1350 unsigned int port_number
;
1352 struct rocker_port
*rocker_port
;
1354 rocker_tlv_parse_nested(attrs
, ROCKER_TLV_EVENT_LINK_CHANGED_MAX
, info
);
1355 if (!attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT
] ||
1356 !attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP
])
1359 rocker_tlv_get_u32(attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT
]) - 1;
1360 link_up
= rocker_tlv_get_u8(attrs
[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP
]);
1362 if (port_number
>= rocker
->port_count
)
1365 rocker_port
= rocker
->ports
[port_number
];
1366 if (netif_carrier_ok(rocker_port
->dev
) != link_up
) {
1368 rocker_port_link_up(rocker_port
);
1370 rocker_port_link_down(rocker_port
);
1376 #define ROCKER_OP_FLAG_REMOVE BIT(0)
1377 #define ROCKER_OP_FLAG_NOWAIT BIT(1)
1378 #define ROCKER_OP_FLAG_LEARNED BIT(2)
1379 #define ROCKER_OP_FLAG_REFRESH BIT(3)
1381 static int rocker_port_fdb(struct rocker_port
*rocker_port
,
1382 const unsigned char *addr
,
1383 __be16 vlan_id
, int flags
);
1385 static int rocker_event_mac_vlan_seen(struct rocker
*rocker
,
1386 const struct rocker_tlv
*info
)
1388 struct rocker_tlv
*attrs
[ROCKER_TLV_EVENT_MAC_VLAN_MAX
+ 1];
1389 unsigned int port_number
;
1390 struct rocker_port
*rocker_port
;
1391 unsigned char *addr
;
1392 int flags
= ROCKER_OP_FLAG_NOWAIT
| ROCKER_OP_FLAG_LEARNED
;
1395 rocker_tlv_parse_nested(attrs
, ROCKER_TLV_EVENT_MAC_VLAN_MAX
, info
);
1396 if (!attrs
[ROCKER_TLV_EVENT_MAC_VLAN_PPORT
] ||
1397 !attrs
[ROCKER_TLV_EVENT_MAC_VLAN_MAC
] ||
1398 !attrs
[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID
])
1401 rocker_tlv_get_u32(attrs
[ROCKER_TLV_EVENT_MAC_VLAN_PPORT
]) - 1;
1402 addr
= rocker_tlv_data(attrs
[ROCKER_TLV_EVENT_MAC_VLAN_MAC
]);
1403 vlan_id
= rocker_tlv_get_be16(attrs
[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID
]);
1405 if (port_number
>= rocker
->port_count
)
1408 rocker_port
= rocker
->ports
[port_number
];
1410 if (rocker_port
->stp_state
!= BR_STATE_LEARNING
&&
1411 rocker_port
->stp_state
!= BR_STATE_FORWARDING
)
1414 return rocker_port_fdb(rocker_port
, addr
, vlan_id
, flags
);
1417 static int rocker_event_process(struct rocker
*rocker
,
1418 struct rocker_desc_info
*desc_info
)
1420 struct rocker_tlv
*attrs
[ROCKER_TLV_EVENT_MAX
+ 1];
1421 struct rocker_tlv
*info
;
1424 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_EVENT_MAX
, desc_info
);
1425 if (!attrs
[ROCKER_TLV_EVENT_TYPE
] ||
1426 !attrs
[ROCKER_TLV_EVENT_INFO
])
1429 type
= rocker_tlv_get_u16(attrs
[ROCKER_TLV_EVENT_TYPE
]);
1430 info
= attrs
[ROCKER_TLV_EVENT_INFO
];
1433 case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED
:
1434 return rocker_event_link_change(rocker
, info
);
1435 case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN
:
1436 return rocker_event_mac_vlan_seen(rocker
, info
);
1442 static irqreturn_t
rocker_event_irq_handler(int irq
, void *dev_id
)
1444 struct rocker
*rocker
= dev_id
;
1445 struct pci_dev
*pdev
= rocker
->pdev
;
1446 struct rocker_desc_info
*desc_info
;
1450 while ((desc_info
= rocker_desc_tail_get(&rocker
->event_ring
))) {
1451 err
= rocker_desc_err(desc_info
);
1453 dev_err(&pdev
->dev
, "event desc received with err %d\n",
1456 err
= rocker_event_process(rocker
, desc_info
);
1458 dev_err(&pdev
->dev
, "event processing failed with err %d\n",
1461 rocker_desc_gen_clear(desc_info
);
1462 rocker_desc_head_set(rocker
, &rocker
->event_ring
, desc_info
);
1465 rocker_dma_ring_credits_set(rocker
, &rocker
->event_ring
, credits
);
1470 static irqreturn_t
rocker_tx_irq_handler(int irq
, void *dev_id
)
1472 struct rocker_port
*rocker_port
= dev_id
;
1474 napi_schedule(&rocker_port
->napi_tx
);
1478 static irqreturn_t
rocker_rx_irq_handler(int irq
, void *dev_id
)
1480 struct rocker_port
*rocker_port
= dev_id
;
1482 napi_schedule(&rocker_port
->napi_rx
);
1486 /********************
1488 ********************/
1490 typedef int (*rocker_cmd_cb_t
)(struct rocker
*rocker
,
1491 struct rocker_port
*rocker_port
,
1492 struct rocker_desc_info
*desc_info
,
1495 static int rocker_cmd_exec(struct rocker
*rocker
,
1496 struct rocker_port
*rocker_port
,
1497 rocker_cmd_cb_t prepare
, void *prepare_priv
,
1498 rocker_cmd_cb_t process
, void *process_priv
,
1501 struct rocker_desc_info
*desc_info
;
1502 struct rocker_wait
*wait
;
1503 unsigned long flags
;
1506 wait
= rocker_wait_create(nowait
? GFP_ATOMIC
: GFP_KERNEL
);
1509 wait
->nowait
= nowait
;
1511 spin_lock_irqsave(&rocker
->cmd_ring_lock
, flags
);
1512 desc_info
= rocker_desc_head_get(&rocker
->cmd_ring
);
1514 spin_unlock_irqrestore(&rocker
->cmd_ring_lock
, flags
);
1518 err
= prepare(rocker
, rocker_port
, desc_info
, prepare_priv
);
1520 spin_unlock_irqrestore(&rocker
->cmd_ring_lock
, flags
);
1523 rocker_desc_cookie_ptr_set(desc_info
, wait
);
1524 rocker_desc_head_set(rocker
, &rocker
->cmd_ring
, desc_info
);
1525 spin_unlock_irqrestore(&rocker
->cmd_ring_lock
, flags
);
1530 if (!rocker_wait_event_timeout(wait
, HZ
/ 10))
1533 err
= rocker_desc_err(desc_info
);
1538 err
= process(rocker
, rocker_port
, desc_info
, process_priv
);
1540 rocker_desc_gen_clear(desc_info
);
1542 rocker_wait_destroy(wait
);
1547 rocker_cmd_get_port_settings_prep(struct rocker
*rocker
,
1548 struct rocker_port
*rocker_port
,
1549 struct rocker_desc_info
*desc_info
,
1552 struct rocker_tlv
*cmd_info
;
1554 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
1555 ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS
))
1557 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
1560 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT
,
1561 rocker_port
->pport
))
1563 rocker_tlv_nest_end(desc_info
, cmd_info
);
1568 rocker_cmd_get_port_settings_ethtool_proc(struct rocker
*rocker
,
1569 struct rocker_port
*rocker_port
,
1570 struct rocker_desc_info
*desc_info
,
1573 struct ethtool_cmd
*ecmd
= priv
;
1574 struct rocker_tlv
*attrs
[ROCKER_TLV_CMD_MAX
+ 1];
1575 struct rocker_tlv
*info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_MAX
+ 1];
1580 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_CMD_MAX
, desc_info
);
1581 if (!attrs
[ROCKER_TLV_CMD_INFO
])
1584 rocker_tlv_parse_nested(info_attrs
, ROCKER_TLV_CMD_PORT_SETTINGS_MAX
,
1585 attrs
[ROCKER_TLV_CMD_INFO
]);
1586 if (!info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED
] ||
1587 !info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX
] ||
1588 !info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG
])
1591 speed
= rocker_tlv_get_u32(info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED
]);
1592 duplex
= rocker_tlv_get_u8(info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX
]);
1593 autoneg
= rocker_tlv_get_u8(info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG
]);
1595 ecmd
->transceiver
= XCVR_INTERNAL
;
1596 ecmd
->supported
= SUPPORTED_TP
;
1597 ecmd
->phy_address
= 0xff;
1598 ecmd
->port
= PORT_TP
;
1599 ethtool_cmd_speed_set(ecmd
, speed
);
1600 ecmd
->duplex
= duplex
? DUPLEX_FULL
: DUPLEX_HALF
;
1601 ecmd
->autoneg
= autoneg
? AUTONEG_ENABLE
: AUTONEG_DISABLE
;
1607 rocker_cmd_get_port_settings_macaddr_proc(struct rocker
*rocker
,
1608 struct rocker_port
*rocker_port
,
1609 struct rocker_desc_info
*desc_info
,
1612 unsigned char *macaddr
= priv
;
1613 struct rocker_tlv
*attrs
[ROCKER_TLV_CMD_MAX
+ 1];
1614 struct rocker_tlv
*info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_MAX
+ 1];
1615 struct rocker_tlv
*attr
;
1617 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_CMD_MAX
, desc_info
);
1618 if (!attrs
[ROCKER_TLV_CMD_INFO
])
1621 rocker_tlv_parse_nested(info_attrs
, ROCKER_TLV_CMD_PORT_SETTINGS_MAX
,
1622 attrs
[ROCKER_TLV_CMD_INFO
]);
1623 attr
= info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR
];
1627 if (rocker_tlv_len(attr
) != ETH_ALEN
)
1630 ether_addr_copy(macaddr
, rocker_tlv_data(attr
));
1640 rocker_cmd_get_port_settings_phys_name_proc(struct rocker
*rocker
,
1641 struct rocker_port
*rocker_port
,
1642 struct rocker_desc_info
*desc_info
,
1645 struct rocker_tlv
*info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_MAX
+ 1];
1646 struct rocker_tlv
*attrs
[ROCKER_TLV_CMD_MAX
+ 1];
1647 struct port_name
*name
= priv
;
1648 struct rocker_tlv
*attr
;
1652 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_CMD_MAX
, desc_info
);
1653 if (!attrs
[ROCKER_TLV_CMD_INFO
])
1656 rocker_tlv_parse_nested(info_attrs
, ROCKER_TLV_CMD_PORT_SETTINGS_MAX
,
1657 attrs
[ROCKER_TLV_CMD_INFO
]);
1658 attr
= info_attrs
[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME
];
1662 len
= min_t(size_t, rocker_tlv_len(attr
), name
->len
);
1663 str
= rocker_tlv_data(attr
);
1665 /* make sure name only contains alphanumeric characters */
1666 for (i
= j
= 0; i
< len
; ++i
) {
1667 if (isalnum(str
[i
])) {
1668 name
->buf
[j
] = str
[i
];
1676 name
->buf
[j
] = '\0';
1682 rocker_cmd_set_port_settings_ethtool_prep(struct rocker
*rocker
,
1683 struct rocker_port
*rocker_port
,
1684 struct rocker_desc_info
*desc_info
,
1687 struct ethtool_cmd
*ecmd
= priv
;
1688 struct rocker_tlv
*cmd_info
;
1690 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
1691 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS
))
1693 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
1696 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT
,
1697 rocker_port
->pport
))
1699 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED
,
1700 ethtool_cmd_speed(ecmd
)))
1702 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX
,
1705 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG
,
1708 rocker_tlv_nest_end(desc_info
, cmd_info
);
1713 rocker_cmd_set_port_settings_macaddr_prep(struct rocker
*rocker
,
1714 struct rocker_port
*rocker_port
,
1715 struct rocker_desc_info
*desc_info
,
1718 unsigned char *macaddr
= priv
;
1719 struct rocker_tlv
*cmd_info
;
1721 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
1722 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS
))
1724 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
1727 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT
,
1728 rocker_port
->pport
))
1730 if (rocker_tlv_put(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR
,
1733 rocker_tlv_nest_end(desc_info
, cmd_info
);
1738 rocker_cmd_set_port_learning_prep(struct rocker
*rocker
,
1739 struct rocker_port
*rocker_port
,
1740 struct rocker_desc_info
*desc_info
,
1743 struct rocker_tlv
*cmd_info
;
1745 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
1746 ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS
))
1748 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
1751 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT
,
1752 rocker_port
->pport
))
1754 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING
,
1755 !!(rocker_port
->brport_flags
& BR_LEARNING
)))
1757 rocker_tlv_nest_end(desc_info
, cmd_info
);
1761 static int rocker_cmd_get_port_settings_ethtool(struct rocker_port
*rocker_port
,
1762 struct ethtool_cmd
*ecmd
)
1764 return rocker_cmd_exec(rocker_port
->rocker
, rocker_port
,
1765 rocker_cmd_get_port_settings_prep
, NULL
,
1766 rocker_cmd_get_port_settings_ethtool_proc
,
1770 static int rocker_cmd_get_port_settings_macaddr(struct rocker_port
*rocker_port
,
1771 unsigned char *macaddr
)
1773 return rocker_cmd_exec(rocker_port
->rocker
, rocker_port
,
1774 rocker_cmd_get_port_settings_prep
, NULL
,
1775 rocker_cmd_get_port_settings_macaddr_proc
,
1779 static int rocker_cmd_set_port_settings_ethtool(struct rocker_port
*rocker_port
,
1780 struct ethtool_cmd
*ecmd
)
1782 return rocker_cmd_exec(rocker_port
->rocker
, rocker_port
,
1783 rocker_cmd_set_port_settings_ethtool_prep
,
1784 ecmd
, NULL
, NULL
, false);
1787 static int rocker_cmd_set_port_settings_macaddr(struct rocker_port
*rocker_port
,
1788 unsigned char *macaddr
)
1790 return rocker_cmd_exec(rocker_port
->rocker
, rocker_port
,
1791 rocker_cmd_set_port_settings_macaddr_prep
,
1792 macaddr
, NULL
, NULL
, false);
1795 static int rocker_port_set_learning(struct rocker_port
*rocker_port
)
1797 return rocker_cmd_exec(rocker_port
->rocker
, rocker_port
,
1798 rocker_cmd_set_port_learning_prep
,
1799 NULL
, NULL
, NULL
, false);
1802 static int rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info
*desc_info
,
1803 struct rocker_flow_tbl_entry
*entry
)
1805 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT
,
1806 entry
->key
.ig_port
.in_pport
))
1808 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT_MASK
,
1809 entry
->key
.ig_port
.in_pport_mask
))
1811 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
1812 entry
->key
.ig_port
.goto_tbl
))
1818 static int rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info
*desc_info
,
1819 struct rocker_flow_tbl_entry
*entry
)
1821 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT
,
1822 entry
->key
.vlan
.in_pport
))
1824 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
1825 entry
->key
.vlan
.vlan_id
))
1827 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID_MASK
,
1828 entry
->key
.vlan
.vlan_id_mask
))
1830 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
1831 entry
->key
.vlan
.goto_tbl
))
1833 if (entry
->key
.vlan
.untagged
&&
1834 rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_NEW_VLAN_ID
,
1835 entry
->key
.vlan
.new_vlan_id
))
1841 static int rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info
*desc_info
,
1842 struct rocker_flow_tbl_entry
*entry
)
1844 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT
,
1845 entry
->key
.term_mac
.in_pport
))
1847 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT_MASK
,
1848 entry
->key
.term_mac
.in_pport_mask
))
1850 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_ETHERTYPE
,
1851 entry
->key
.term_mac
.eth_type
))
1853 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
1854 ETH_ALEN
, entry
->key
.term_mac
.eth_dst
))
1856 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC_MASK
,
1857 ETH_ALEN
, entry
->key
.term_mac
.eth_dst_mask
))
1859 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
1860 entry
->key
.term_mac
.vlan_id
))
1862 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID_MASK
,
1863 entry
->key
.term_mac
.vlan_id_mask
))
1865 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
1866 entry
->key
.term_mac
.goto_tbl
))
1868 if (entry
->key
.term_mac
.copy_to_cpu
&&
1869 rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION
,
1870 entry
->key
.term_mac
.copy_to_cpu
))
1877 rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info
*desc_info
,
1878 struct rocker_flow_tbl_entry
*entry
)
1880 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_ETHERTYPE
,
1881 entry
->key
.ucast_routing
.eth_type
))
1883 if (rocker_tlv_put_be32(desc_info
, ROCKER_TLV_OF_DPA_DST_IP
,
1884 entry
->key
.ucast_routing
.dst4
))
1886 if (rocker_tlv_put_be32(desc_info
, ROCKER_TLV_OF_DPA_DST_IP_MASK
,
1887 entry
->key
.ucast_routing
.dst4_mask
))
1889 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
1890 entry
->key
.ucast_routing
.goto_tbl
))
1892 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
1893 entry
->key
.ucast_routing
.group_id
))
1899 static int rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info
*desc_info
,
1900 struct rocker_flow_tbl_entry
*entry
)
1902 if (entry
->key
.bridge
.has_eth_dst
&&
1903 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
1904 ETH_ALEN
, entry
->key
.bridge
.eth_dst
))
1906 if (entry
->key
.bridge
.has_eth_dst_mask
&&
1907 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC_MASK
,
1908 ETH_ALEN
, entry
->key
.bridge
.eth_dst_mask
))
1910 if (entry
->key
.bridge
.vlan_id
&&
1911 rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
1912 entry
->key
.bridge
.vlan_id
))
1914 if (entry
->key
.bridge
.tunnel_id
&&
1915 rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_TUNNEL_ID
,
1916 entry
->key
.bridge
.tunnel_id
))
1918 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID
,
1919 entry
->key
.bridge
.goto_tbl
))
1921 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
1922 entry
->key
.bridge
.group_id
))
1924 if (entry
->key
.bridge
.copy_to_cpu
&&
1925 rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION
,
1926 entry
->key
.bridge
.copy_to_cpu
))
1932 static int rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info
*desc_info
,
1933 struct rocker_flow_tbl_entry
*entry
)
1935 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT
,
1936 entry
->key
.acl
.in_pport
))
1938 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_IN_PPORT_MASK
,
1939 entry
->key
.acl
.in_pport_mask
))
1941 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_SRC_MAC
,
1942 ETH_ALEN
, entry
->key
.acl
.eth_src
))
1944 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_SRC_MAC_MASK
,
1945 ETH_ALEN
, entry
->key
.acl
.eth_src_mask
))
1947 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
1948 ETH_ALEN
, entry
->key
.acl
.eth_dst
))
1950 if (rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC_MASK
,
1951 ETH_ALEN
, entry
->key
.acl
.eth_dst_mask
))
1953 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_ETHERTYPE
,
1954 entry
->key
.acl
.eth_type
))
1956 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
1957 entry
->key
.acl
.vlan_id
))
1959 if (rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID_MASK
,
1960 entry
->key
.acl
.vlan_id_mask
))
1963 switch (ntohs(entry
->key
.acl
.eth_type
)) {
1966 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_IP_PROTO
,
1967 entry
->key
.acl
.ip_proto
))
1969 if (rocker_tlv_put_u8(desc_info
,
1970 ROCKER_TLV_OF_DPA_IP_PROTO_MASK
,
1971 entry
->key
.acl
.ip_proto_mask
))
1973 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_IP_DSCP
,
1974 entry
->key
.acl
.ip_tos
& 0x3f))
1976 if (rocker_tlv_put_u8(desc_info
,
1977 ROCKER_TLV_OF_DPA_IP_DSCP_MASK
,
1978 entry
->key
.acl
.ip_tos_mask
& 0x3f))
1980 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_IP_ECN
,
1981 (entry
->key
.acl
.ip_tos
& 0xc0) >> 6))
1983 if (rocker_tlv_put_u8(desc_info
,
1984 ROCKER_TLV_OF_DPA_IP_ECN_MASK
,
1985 (entry
->key
.acl
.ip_tos_mask
& 0xc0) >> 6))
1990 if (entry
->key
.acl
.group_id
!= ROCKER_GROUP_NONE
&&
1991 rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
1992 entry
->key
.acl
.group_id
))
1998 static int rocker_cmd_flow_tbl_add(struct rocker
*rocker
,
1999 struct rocker_port
*rocker_port
,
2000 struct rocker_desc_info
*desc_info
,
2003 struct rocker_flow_tbl_entry
*entry
= priv
;
2004 struct rocker_tlv
*cmd_info
;
2007 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
, entry
->cmd
))
2009 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
2012 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_TABLE_ID
,
2015 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_PRIORITY
,
2016 entry
->key
.priority
))
2018 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_HARDTIME
, 0))
2020 if (rocker_tlv_put_u64(desc_info
, ROCKER_TLV_OF_DPA_COOKIE
,
2024 switch (entry
->key
.tbl_id
) {
2025 case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT
:
2026 err
= rocker_cmd_flow_tbl_add_ig_port(desc_info
, entry
);
2028 case ROCKER_OF_DPA_TABLE_ID_VLAN
:
2029 err
= rocker_cmd_flow_tbl_add_vlan(desc_info
, entry
);
2031 case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC
:
2032 err
= rocker_cmd_flow_tbl_add_term_mac(desc_info
, entry
);
2034 case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING
:
2035 err
= rocker_cmd_flow_tbl_add_ucast_routing(desc_info
, entry
);
2037 case ROCKER_OF_DPA_TABLE_ID_BRIDGING
:
2038 err
= rocker_cmd_flow_tbl_add_bridge(desc_info
, entry
);
2040 case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
:
2041 err
= rocker_cmd_flow_tbl_add_acl(desc_info
, entry
);
2051 rocker_tlv_nest_end(desc_info
, cmd_info
);
2056 static int rocker_cmd_flow_tbl_del(struct rocker
*rocker
,
2057 struct rocker_port
*rocker_port
,
2058 struct rocker_desc_info
*desc_info
,
2061 const struct rocker_flow_tbl_entry
*entry
= priv
;
2062 struct rocker_tlv
*cmd_info
;
2064 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
, entry
->cmd
))
2066 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
2069 if (rocker_tlv_put_u64(desc_info
, ROCKER_TLV_OF_DPA_COOKIE
,
2072 rocker_tlv_nest_end(desc_info
, cmd_info
);
2078 rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info
*desc_info
,
2079 struct rocker_group_tbl_entry
*entry
)
2081 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_OUT_PPORT
,
2082 ROCKER_GROUP_PORT_GET(entry
->group_id
)))
2084 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_POP_VLAN
,
2085 entry
->l2_interface
.pop_vlan
))
2092 rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info
*desc_info
,
2093 struct rocker_group_tbl_entry
*entry
)
2095 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER
,
2096 entry
->l2_rewrite
.group_id
))
2098 if (!is_zero_ether_addr(entry
->l2_rewrite
.eth_src
) &&
2099 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_SRC_MAC
,
2100 ETH_ALEN
, entry
->l2_rewrite
.eth_src
))
2102 if (!is_zero_ether_addr(entry
->l2_rewrite
.eth_dst
) &&
2103 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
2104 ETH_ALEN
, entry
->l2_rewrite
.eth_dst
))
2106 if (entry
->l2_rewrite
.vlan_id
&&
2107 rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
2108 entry
->l2_rewrite
.vlan_id
))
2115 rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info
*desc_info
,
2116 struct rocker_group_tbl_entry
*entry
)
2119 struct rocker_tlv
*group_ids
;
2121 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_OF_DPA_GROUP_COUNT
,
2122 entry
->group_count
))
2125 group_ids
= rocker_tlv_nest_start(desc_info
,
2126 ROCKER_TLV_OF_DPA_GROUP_IDS
);
2130 for (i
= 0; i
< entry
->group_count
; i
++)
2131 /* Note TLV array is 1-based */
2132 if (rocker_tlv_put_u32(desc_info
, i
+ 1, entry
->group_ids
[i
]))
2135 rocker_tlv_nest_end(desc_info
, group_ids
);
2141 rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info
*desc_info
,
2142 struct rocker_group_tbl_entry
*entry
)
2144 if (!is_zero_ether_addr(entry
->l3_unicast
.eth_src
) &&
2145 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_SRC_MAC
,
2146 ETH_ALEN
, entry
->l3_unicast
.eth_src
))
2148 if (!is_zero_ether_addr(entry
->l3_unicast
.eth_dst
) &&
2149 rocker_tlv_put(desc_info
, ROCKER_TLV_OF_DPA_DST_MAC
,
2150 ETH_ALEN
, entry
->l3_unicast
.eth_dst
))
2152 if (entry
->l3_unicast
.vlan_id
&&
2153 rocker_tlv_put_be16(desc_info
, ROCKER_TLV_OF_DPA_VLAN_ID
,
2154 entry
->l3_unicast
.vlan_id
))
2156 if (rocker_tlv_put_u8(desc_info
, ROCKER_TLV_OF_DPA_TTL_CHECK
,
2157 entry
->l3_unicast
.ttl_check
))
2159 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER
,
2160 entry
->l3_unicast
.group_id
))
2166 static int rocker_cmd_group_tbl_add(struct rocker
*rocker
,
2167 struct rocker_port
*rocker_port
,
2168 struct rocker_desc_info
*desc_info
,
2171 struct rocker_group_tbl_entry
*entry
= priv
;
2172 struct rocker_tlv
*cmd_info
;
2175 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
, entry
->cmd
))
2177 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
2181 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
2185 switch (ROCKER_GROUP_TYPE_GET(entry
->group_id
)) {
2186 case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE
:
2187 err
= rocker_cmd_group_tbl_add_l2_interface(desc_info
, entry
);
2189 case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE
:
2190 err
= rocker_cmd_group_tbl_add_l2_rewrite(desc_info
, entry
);
2192 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD
:
2193 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST
:
2194 err
= rocker_cmd_group_tbl_add_group_ids(desc_info
, entry
);
2196 case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST
:
2197 err
= rocker_cmd_group_tbl_add_l3_unicast(desc_info
, entry
);
2207 rocker_tlv_nest_end(desc_info
, cmd_info
);
2212 static int rocker_cmd_group_tbl_del(struct rocker
*rocker
,
2213 struct rocker_port
*rocker_port
,
2214 struct rocker_desc_info
*desc_info
,
2217 const struct rocker_group_tbl_entry
*entry
= priv
;
2218 struct rocker_tlv
*cmd_info
;
2220 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
, entry
->cmd
))
2222 cmd_info
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
2225 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_OF_DPA_GROUP_ID
,
2228 rocker_tlv_nest_end(desc_info
, cmd_info
);
2233 /***************************************************
2234 * Flow, group, FDB, internal VLAN and neigh tables
2235 ***************************************************/
2237 static int rocker_init_tbls(struct rocker
*rocker
)
2239 hash_init(rocker
->flow_tbl
);
2240 spin_lock_init(&rocker
->flow_tbl_lock
);
2242 hash_init(rocker
->group_tbl
);
2243 spin_lock_init(&rocker
->group_tbl_lock
);
2245 hash_init(rocker
->fdb_tbl
);
2246 spin_lock_init(&rocker
->fdb_tbl_lock
);
2248 hash_init(rocker
->internal_vlan_tbl
);
2249 spin_lock_init(&rocker
->internal_vlan_tbl_lock
);
2251 hash_init(rocker
->neigh_tbl
);
2252 spin_lock_init(&rocker
->neigh_tbl_lock
);
2257 static void rocker_free_tbls(struct rocker
*rocker
)
2259 unsigned long flags
;
2260 struct rocker_flow_tbl_entry
*flow_entry
;
2261 struct rocker_group_tbl_entry
*group_entry
;
2262 struct rocker_fdb_tbl_entry
*fdb_entry
;
2263 struct rocker_internal_vlan_tbl_entry
*internal_vlan_entry
;
2264 struct rocker_neigh_tbl_entry
*neigh_entry
;
2265 struct hlist_node
*tmp
;
2268 spin_lock_irqsave(&rocker
->flow_tbl_lock
, flags
);
2269 hash_for_each_safe(rocker
->flow_tbl
, bkt
, tmp
, flow_entry
, entry
)
2270 hash_del(&flow_entry
->entry
);
2271 spin_unlock_irqrestore(&rocker
->flow_tbl_lock
, flags
);
2273 spin_lock_irqsave(&rocker
->group_tbl_lock
, flags
);
2274 hash_for_each_safe(rocker
->group_tbl
, bkt
, tmp
, group_entry
, entry
)
2275 hash_del(&group_entry
->entry
);
2276 spin_unlock_irqrestore(&rocker
->group_tbl_lock
, flags
);
2278 spin_lock_irqsave(&rocker
->fdb_tbl_lock
, flags
);
2279 hash_for_each_safe(rocker
->fdb_tbl
, bkt
, tmp
, fdb_entry
, entry
)
2280 hash_del(&fdb_entry
->entry
);
2281 spin_unlock_irqrestore(&rocker
->fdb_tbl_lock
, flags
);
2283 spin_lock_irqsave(&rocker
->internal_vlan_tbl_lock
, flags
);
2284 hash_for_each_safe(rocker
->internal_vlan_tbl
, bkt
,
2285 tmp
, internal_vlan_entry
, entry
)
2286 hash_del(&internal_vlan_entry
->entry
);
2287 spin_unlock_irqrestore(&rocker
->internal_vlan_tbl_lock
, flags
);
2289 spin_lock_irqsave(&rocker
->neigh_tbl_lock
, flags
);
2290 hash_for_each_safe(rocker
->neigh_tbl
, bkt
, tmp
, neigh_entry
, entry
)
2291 hash_del(&neigh_entry
->entry
);
2292 spin_unlock_irqrestore(&rocker
->neigh_tbl_lock
, flags
);
2295 static struct rocker_flow_tbl_entry
*
2296 rocker_flow_tbl_find(struct rocker
*rocker
, struct rocker_flow_tbl_entry
*match
)
2298 struct rocker_flow_tbl_entry
*found
;
2299 size_t key_len
= match
->key_len
? match
->key_len
: sizeof(found
->key
);
2301 hash_for_each_possible(rocker
->flow_tbl
, found
,
2302 entry
, match
->key_crc32
) {
2303 if (memcmp(&found
->key
, &match
->key
, key_len
) == 0)
2310 static int rocker_flow_tbl_add(struct rocker_port
*rocker_port
,
2311 struct rocker_flow_tbl_entry
*match
,
2314 struct rocker
*rocker
= rocker_port
->rocker
;
2315 struct rocker_flow_tbl_entry
*found
;
2316 size_t key_len
= match
->key_len
? match
->key_len
: sizeof(found
->key
);
2317 unsigned long flags
;
2319 match
->key_crc32
= crc32(~0, &match
->key
, key_len
);
2321 spin_lock_irqsave(&rocker
->flow_tbl_lock
, flags
);
2323 found
= rocker_flow_tbl_find(rocker
, match
);
2326 match
->cookie
= found
->cookie
;
2327 hash_del(&found
->entry
);
2330 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD
;
2333 found
->cookie
= rocker
->flow_tbl_next_cookie
++;
2334 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD
;
2337 hash_add(rocker
->flow_tbl
, &found
->entry
, found
->key_crc32
);
2339 spin_unlock_irqrestore(&rocker
->flow_tbl_lock
, flags
);
2341 return rocker_cmd_exec(rocker
, rocker_port
,
2342 rocker_cmd_flow_tbl_add
,
2343 found
, NULL
, NULL
, nowait
);
2346 static int rocker_flow_tbl_del(struct rocker_port
*rocker_port
,
2347 struct rocker_flow_tbl_entry
*match
,
2350 struct rocker
*rocker
= rocker_port
->rocker
;
2351 struct rocker_flow_tbl_entry
*found
;
2352 size_t key_len
= match
->key_len
? match
->key_len
: sizeof(found
->key
);
2353 unsigned long flags
;
2356 match
->key_crc32
= crc32(~0, &match
->key
, key_len
);
2358 spin_lock_irqsave(&rocker
->flow_tbl_lock
, flags
);
2360 found
= rocker_flow_tbl_find(rocker
, match
);
2363 hash_del(&found
->entry
);
2364 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL
;
2367 spin_unlock_irqrestore(&rocker
->flow_tbl_lock
, flags
);
2372 err
= rocker_cmd_exec(rocker
, rocker_port
,
2373 rocker_cmd_flow_tbl_del
,
2374 found
, NULL
, NULL
, nowait
);
2381 static gfp_t
rocker_op_flags_gfp(int flags
)
2383 return flags
& ROCKER_OP_FLAG_NOWAIT
? GFP_ATOMIC
: GFP_KERNEL
;
2386 static int rocker_flow_tbl_do(struct rocker_port
*rocker_port
,
2387 int flags
, struct rocker_flow_tbl_entry
*entry
)
2389 bool nowait
= flags
& ROCKER_OP_FLAG_NOWAIT
;
2391 if (flags
& ROCKER_OP_FLAG_REMOVE
)
2392 return rocker_flow_tbl_del(rocker_port
, entry
, nowait
);
2394 return rocker_flow_tbl_add(rocker_port
, entry
, nowait
);
2397 static int rocker_flow_tbl_ig_port(struct rocker_port
*rocker_port
,
2398 int flags
, u32 in_pport
, u32 in_pport_mask
,
2399 enum rocker_of_dpa_table_id goto_tbl
)
2401 struct rocker_flow_tbl_entry
*entry
;
2403 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2407 entry
->key
.priority
= ROCKER_PRIORITY_IG_PORT
;
2408 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT
;
2409 entry
->key
.ig_port
.in_pport
= in_pport
;
2410 entry
->key
.ig_port
.in_pport_mask
= in_pport_mask
;
2411 entry
->key
.ig_port
.goto_tbl
= goto_tbl
;
2413 return rocker_flow_tbl_do(rocker_port
, flags
, entry
);
2416 static int rocker_flow_tbl_vlan(struct rocker_port
*rocker_port
,
2417 int flags
, u32 in_pport
,
2418 __be16 vlan_id
, __be16 vlan_id_mask
,
2419 enum rocker_of_dpa_table_id goto_tbl
,
2420 bool untagged
, __be16 new_vlan_id
)
2422 struct rocker_flow_tbl_entry
*entry
;
2424 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2428 entry
->key
.priority
= ROCKER_PRIORITY_VLAN
;
2429 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_VLAN
;
2430 entry
->key
.vlan
.in_pport
= in_pport
;
2431 entry
->key
.vlan
.vlan_id
= vlan_id
;
2432 entry
->key
.vlan
.vlan_id_mask
= vlan_id_mask
;
2433 entry
->key
.vlan
.goto_tbl
= goto_tbl
;
2435 entry
->key
.vlan
.untagged
= untagged
;
2436 entry
->key
.vlan
.new_vlan_id
= new_vlan_id
;
2438 return rocker_flow_tbl_do(rocker_port
, flags
, entry
);
2441 static int rocker_flow_tbl_term_mac(struct rocker_port
*rocker_port
,
2442 u32 in_pport
, u32 in_pport_mask
,
2443 __be16 eth_type
, const u8
*eth_dst
,
2444 const u8
*eth_dst_mask
, __be16 vlan_id
,
2445 __be16 vlan_id_mask
, bool copy_to_cpu
,
2448 struct rocker_flow_tbl_entry
*entry
;
2450 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2454 if (is_multicast_ether_addr(eth_dst
)) {
2455 entry
->key
.priority
= ROCKER_PRIORITY_TERM_MAC_MCAST
;
2456 entry
->key
.term_mac
.goto_tbl
=
2457 ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING
;
2459 entry
->key
.priority
= ROCKER_PRIORITY_TERM_MAC_UCAST
;
2460 entry
->key
.term_mac
.goto_tbl
=
2461 ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING
;
2464 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC
;
2465 entry
->key
.term_mac
.in_pport
= in_pport
;
2466 entry
->key
.term_mac
.in_pport_mask
= in_pport_mask
;
2467 entry
->key
.term_mac
.eth_type
= eth_type
;
2468 ether_addr_copy(entry
->key
.term_mac
.eth_dst
, eth_dst
);
2469 ether_addr_copy(entry
->key
.term_mac
.eth_dst_mask
, eth_dst_mask
);
2470 entry
->key
.term_mac
.vlan_id
= vlan_id
;
2471 entry
->key
.term_mac
.vlan_id_mask
= vlan_id_mask
;
2472 entry
->key
.term_mac
.copy_to_cpu
= copy_to_cpu
;
2474 return rocker_flow_tbl_do(rocker_port
, flags
, entry
);
2477 static int rocker_flow_tbl_bridge(struct rocker_port
*rocker_port
,
2479 const u8
*eth_dst
, const u8
*eth_dst_mask
,
2480 __be16 vlan_id
, u32 tunnel_id
,
2481 enum rocker_of_dpa_table_id goto_tbl
,
2482 u32 group_id
, bool copy_to_cpu
)
2484 struct rocker_flow_tbl_entry
*entry
;
2486 bool vlan_bridging
= !!vlan_id
;
2487 bool dflt
= !eth_dst
|| (eth_dst
&& eth_dst_mask
);
2490 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2494 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_BRIDGING
;
2497 entry
->key
.bridge
.has_eth_dst
= 1;
2498 ether_addr_copy(entry
->key
.bridge
.eth_dst
, eth_dst
);
2501 entry
->key
.bridge
.has_eth_dst_mask
= 1;
2502 ether_addr_copy(entry
->key
.bridge
.eth_dst_mask
, eth_dst_mask
);
2503 if (memcmp(eth_dst_mask
, ff_mac
, ETH_ALEN
))
2507 priority
= ROCKER_PRIORITY_UNKNOWN
;
2508 if (vlan_bridging
&& dflt
&& wild
)
2509 priority
= ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD
;
2510 else if (vlan_bridging
&& dflt
&& !wild
)
2511 priority
= ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT
;
2512 else if (vlan_bridging
&& !dflt
)
2513 priority
= ROCKER_PRIORITY_BRIDGING_VLAN
;
2514 else if (!vlan_bridging
&& dflt
&& wild
)
2515 priority
= ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD
;
2516 else if (!vlan_bridging
&& dflt
&& !wild
)
2517 priority
= ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT
;
2518 else if (!vlan_bridging
&& !dflt
)
2519 priority
= ROCKER_PRIORITY_BRIDGING_TENANT
;
2521 entry
->key
.priority
= priority
;
2522 entry
->key
.bridge
.vlan_id
= vlan_id
;
2523 entry
->key
.bridge
.tunnel_id
= tunnel_id
;
2524 entry
->key
.bridge
.goto_tbl
= goto_tbl
;
2525 entry
->key
.bridge
.group_id
= group_id
;
2526 entry
->key
.bridge
.copy_to_cpu
= copy_to_cpu
;
2528 return rocker_flow_tbl_do(rocker_port
, flags
, entry
);
2531 static int rocker_flow_tbl_ucast4_routing(struct rocker_port
*rocker_port
,
2532 __be16 eth_type
, __be32 dst
,
2533 __be32 dst_mask
, u32 priority
,
2534 enum rocker_of_dpa_table_id goto_tbl
,
2535 u32 group_id
, int flags
)
2537 struct rocker_flow_tbl_entry
*entry
;
2539 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2543 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING
;
2544 entry
->key
.priority
= priority
;
2545 entry
->key
.ucast_routing
.eth_type
= eth_type
;
2546 entry
->key
.ucast_routing
.dst4
= dst
;
2547 entry
->key
.ucast_routing
.dst4_mask
= dst_mask
;
2548 entry
->key
.ucast_routing
.goto_tbl
= goto_tbl
;
2549 entry
->key
.ucast_routing
.group_id
= group_id
;
2550 entry
->key_len
= offsetof(struct rocker_flow_tbl_key
,
2551 ucast_routing
.group_id
);
2553 return rocker_flow_tbl_do(rocker_port
, flags
, entry
);
2556 static int rocker_flow_tbl_acl(struct rocker_port
*rocker_port
,
2557 int flags
, u32 in_pport
,
2559 const u8
*eth_src
, const u8
*eth_src_mask
,
2560 const u8
*eth_dst
, const u8
*eth_dst_mask
,
2562 __be16 vlan_id
, __be16 vlan_id_mask
,
2563 u8 ip_proto
, u8 ip_proto_mask
,
2564 u8 ip_tos
, u8 ip_tos_mask
,
2568 struct rocker_flow_tbl_entry
*entry
;
2570 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2574 priority
= ROCKER_PRIORITY_ACL_NORMAL
;
2575 if (eth_dst
&& eth_dst_mask
) {
2576 if (memcmp(eth_dst_mask
, mcast_mac
, ETH_ALEN
) == 0)
2577 priority
= ROCKER_PRIORITY_ACL_DFLT
;
2578 else if (is_link_local_ether_addr(eth_dst
))
2579 priority
= ROCKER_PRIORITY_ACL_CTRL
;
2582 entry
->key
.priority
= priority
;
2583 entry
->key
.tbl_id
= ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
2584 entry
->key
.acl
.in_pport
= in_pport
;
2585 entry
->key
.acl
.in_pport_mask
= in_pport_mask
;
2588 ether_addr_copy(entry
->key
.acl
.eth_src
, eth_src
);
2590 ether_addr_copy(entry
->key
.acl
.eth_src_mask
, eth_src_mask
);
2592 ether_addr_copy(entry
->key
.acl
.eth_dst
, eth_dst
);
2594 ether_addr_copy(entry
->key
.acl
.eth_dst_mask
, eth_dst_mask
);
2596 entry
->key
.acl
.eth_type
= eth_type
;
2597 entry
->key
.acl
.vlan_id
= vlan_id
;
2598 entry
->key
.acl
.vlan_id_mask
= vlan_id_mask
;
2599 entry
->key
.acl
.ip_proto
= ip_proto
;
2600 entry
->key
.acl
.ip_proto_mask
= ip_proto_mask
;
2601 entry
->key
.acl
.ip_tos
= ip_tos
;
2602 entry
->key
.acl
.ip_tos_mask
= ip_tos_mask
;
2603 entry
->key
.acl
.group_id
= group_id
;
2605 return rocker_flow_tbl_do(rocker_port
, flags
, entry
);
2608 static struct rocker_group_tbl_entry
*
2609 rocker_group_tbl_find(struct rocker
*rocker
,
2610 struct rocker_group_tbl_entry
*match
)
2612 struct rocker_group_tbl_entry
*found
;
2614 hash_for_each_possible(rocker
->group_tbl
, found
,
2615 entry
, match
->group_id
) {
2616 if (found
->group_id
== match
->group_id
)
2623 static void rocker_group_tbl_entry_free(struct rocker_group_tbl_entry
*entry
)
2625 switch (ROCKER_GROUP_TYPE_GET(entry
->group_id
)) {
2626 case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD
:
2627 case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST
:
2628 kfree(entry
->group_ids
);
2636 static int rocker_group_tbl_add(struct rocker_port
*rocker_port
,
2637 struct rocker_group_tbl_entry
*match
,
2640 struct rocker
*rocker
= rocker_port
->rocker
;
2641 struct rocker_group_tbl_entry
*found
;
2642 unsigned long flags
;
2644 spin_lock_irqsave(&rocker
->group_tbl_lock
, flags
);
2646 found
= rocker_group_tbl_find(rocker
, match
);
2649 hash_del(&found
->entry
);
2650 rocker_group_tbl_entry_free(found
);
2652 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD
;
2655 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD
;
2658 hash_add(rocker
->group_tbl
, &found
->entry
, found
->group_id
);
2660 spin_unlock_irqrestore(&rocker
->group_tbl_lock
, flags
);
2662 return rocker_cmd_exec(rocker
, rocker_port
,
2663 rocker_cmd_group_tbl_add
,
2664 found
, NULL
, NULL
, nowait
);
2667 static int rocker_group_tbl_del(struct rocker_port
*rocker_port
,
2668 struct rocker_group_tbl_entry
*match
,
2671 struct rocker
*rocker
= rocker_port
->rocker
;
2672 struct rocker_group_tbl_entry
*found
;
2673 unsigned long flags
;
2676 spin_lock_irqsave(&rocker
->group_tbl_lock
, flags
);
2678 found
= rocker_group_tbl_find(rocker
, match
);
2681 hash_del(&found
->entry
);
2682 found
->cmd
= ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL
;
2685 spin_unlock_irqrestore(&rocker
->group_tbl_lock
, flags
);
2687 rocker_group_tbl_entry_free(match
);
2690 err
= rocker_cmd_exec(rocker
, rocker_port
,
2691 rocker_cmd_group_tbl_del
,
2692 found
, NULL
, NULL
, nowait
);
2693 rocker_group_tbl_entry_free(found
);
2699 static int rocker_group_tbl_do(struct rocker_port
*rocker_port
,
2700 int flags
, struct rocker_group_tbl_entry
*entry
)
2702 bool nowait
= flags
& ROCKER_OP_FLAG_NOWAIT
;
2704 if (flags
& ROCKER_OP_FLAG_REMOVE
)
2705 return rocker_group_tbl_del(rocker_port
, entry
, nowait
);
2707 return rocker_group_tbl_add(rocker_port
, entry
, nowait
);
2710 static int rocker_group_l2_interface(struct rocker_port
*rocker_port
,
2711 int flags
, __be16 vlan_id
,
2712 u32 out_pport
, int pop_vlan
)
2714 struct rocker_group_tbl_entry
*entry
;
2716 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2720 entry
->group_id
= ROCKER_GROUP_L2_INTERFACE(vlan_id
, out_pport
);
2721 entry
->l2_interface
.pop_vlan
= pop_vlan
;
2723 return rocker_group_tbl_do(rocker_port
, flags
, entry
);
2726 static int rocker_group_l2_fan_out(struct rocker_port
*rocker_port
,
2727 int flags
, u8 group_count
,
2728 u32
*group_ids
, u32 group_id
)
2730 struct rocker_group_tbl_entry
*entry
;
2732 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2736 entry
->group_id
= group_id
;
2737 entry
->group_count
= group_count
;
2739 entry
->group_ids
= kcalloc(group_count
, sizeof(u32
),
2740 rocker_op_flags_gfp(flags
));
2741 if (!entry
->group_ids
) {
2745 memcpy(entry
->group_ids
, group_ids
, group_count
* sizeof(u32
));
2747 return rocker_group_tbl_do(rocker_port
, flags
, entry
);
2750 static int rocker_group_l2_flood(struct rocker_port
*rocker_port
,
2751 int flags
, __be16 vlan_id
,
2752 u8 group_count
, u32
*group_ids
,
2755 return rocker_group_l2_fan_out(rocker_port
, flags
,
2756 group_count
, group_ids
,
2760 static int rocker_group_l3_unicast(struct rocker_port
*rocker_port
,
2761 int flags
, u32 index
, u8
*src_mac
,
2762 u8
*dst_mac
, __be16 vlan_id
,
2763 bool ttl_check
, u32 pport
)
2765 struct rocker_group_tbl_entry
*entry
;
2767 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2771 entry
->group_id
= ROCKER_GROUP_L3_UNICAST(index
);
2773 ether_addr_copy(entry
->l3_unicast
.eth_src
, src_mac
);
2775 ether_addr_copy(entry
->l3_unicast
.eth_dst
, dst_mac
);
2776 entry
->l3_unicast
.vlan_id
= vlan_id
;
2777 entry
->l3_unicast
.ttl_check
= ttl_check
;
2778 entry
->l3_unicast
.group_id
= ROCKER_GROUP_L2_INTERFACE(vlan_id
, pport
);
2780 return rocker_group_tbl_do(rocker_port
, flags
, entry
);
2783 static struct rocker_neigh_tbl_entry
*
2784 rocker_neigh_tbl_find(struct rocker
*rocker
, __be32 ip_addr
)
2786 struct rocker_neigh_tbl_entry
*found
;
2788 hash_for_each_possible(rocker
->neigh_tbl
, found
,
2789 entry
, be32_to_cpu(ip_addr
))
2790 if (found
->ip_addr
== ip_addr
)
2796 static void _rocker_neigh_add(struct rocker
*rocker
,
2797 struct rocker_neigh_tbl_entry
*entry
)
2799 entry
->index
= rocker
->neigh_tbl_next_index
++;
2801 hash_add(rocker
->neigh_tbl
, &entry
->entry
,
2802 be32_to_cpu(entry
->ip_addr
));
2805 static void _rocker_neigh_del(struct rocker
*rocker
,
2806 struct rocker_neigh_tbl_entry
*entry
)
2808 if (--entry
->ref_count
== 0) {
2809 hash_del(&entry
->entry
);
2814 static void _rocker_neigh_update(struct rocker
*rocker
,
2815 struct rocker_neigh_tbl_entry
*entry
,
2816 u8
*eth_dst
, bool ttl_check
)
2819 ether_addr_copy(entry
->eth_dst
, eth_dst
);
2820 entry
->ttl_check
= ttl_check
;
2826 static int rocker_port_ipv4_neigh(struct rocker_port
*rocker_port
,
2827 int flags
, __be32 ip_addr
, u8
*eth_dst
)
2829 struct rocker
*rocker
= rocker_port
->rocker
;
2830 struct rocker_neigh_tbl_entry
*entry
;
2831 struct rocker_neigh_tbl_entry
*found
;
2832 unsigned long lock_flags
;
2833 __be16 eth_type
= htons(ETH_P_IP
);
2834 enum rocker_of_dpa_table_id goto_tbl
=
2835 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
2838 bool adding
= !(flags
& ROCKER_OP_FLAG_REMOVE
);
2843 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2847 spin_lock_irqsave(&rocker
->neigh_tbl_lock
, lock_flags
);
2849 found
= rocker_neigh_tbl_find(rocker
, ip_addr
);
2851 updating
= found
&& adding
;
2852 removing
= found
&& !adding
;
2853 adding
= !found
&& adding
;
2856 entry
->ip_addr
= ip_addr
;
2857 entry
->dev
= rocker_port
->dev
;
2858 ether_addr_copy(entry
->eth_dst
, eth_dst
);
2859 entry
->ttl_check
= true;
2860 _rocker_neigh_add(rocker
, entry
);
2861 } else if (removing
) {
2862 memcpy(entry
, found
, sizeof(*entry
));
2863 _rocker_neigh_del(rocker
, found
);
2864 } else if (updating
) {
2865 _rocker_neigh_update(rocker
, found
, eth_dst
, true);
2866 memcpy(entry
, found
, sizeof(*entry
));
2871 spin_unlock_irqrestore(&rocker
->neigh_tbl_lock
, lock_flags
);
2876 /* For each active neighbor, we have an L3 unicast group and
2877 * a /32 route to the neighbor, which uses the L3 unicast
2878 * group. The L3 unicast group can also be referred to by
2879 * other routes' nexthops.
2882 err
= rocker_group_l3_unicast(rocker_port
, flags
,
2884 rocker_port
->dev
->dev_addr
,
2886 rocker_port
->internal_vlan_id
,
2888 rocker_port
->pport
);
2890 netdev_err(rocker_port
->dev
,
2891 "Error (%d) L3 unicast group index %d\n",
2896 if (adding
|| removing
) {
2897 group_id
= ROCKER_GROUP_L3_UNICAST(entry
->index
);
2898 err
= rocker_flow_tbl_ucast4_routing(rocker_port
,
2905 netdev_err(rocker_port
->dev
,
2906 "Error (%d) /32 unicast route %pI4 group 0x%08x\n",
2907 err
, &entry
->ip_addr
, group_id
);
2917 static int rocker_port_ipv4_resolve(struct rocker_port
*rocker_port
,
2920 struct net_device
*dev
= rocker_port
->dev
;
2921 struct neighbour
*n
= __ipv4_neigh_lookup(dev
, (__force u32
)ip_addr
);
2925 n
= neigh_create(&arp_tbl
, &ip_addr
, dev
);
2930 /* If the neigh is already resolved, then go ahead and
2931 * install the entry, otherwise start the ARP process to
2932 * resolve the neigh.
2935 if (n
->nud_state
& NUD_VALID
)
2936 err
= rocker_port_ipv4_neigh(rocker_port
, 0, ip_addr
, n
->ha
);
2938 neigh_event_send(n
, NULL
);
2944 static int rocker_port_ipv4_nh(struct rocker_port
*rocker_port
, int flags
,
2945 __be32 ip_addr
, u32
*index
)
2947 struct rocker
*rocker
= rocker_port
->rocker
;
2948 struct rocker_neigh_tbl_entry
*entry
;
2949 struct rocker_neigh_tbl_entry
*found
;
2950 unsigned long lock_flags
;
2951 bool adding
= !(flags
& ROCKER_OP_FLAG_REMOVE
);
2954 bool resolved
= true;
2957 entry
= kzalloc(sizeof(*entry
), rocker_op_flags_gfp(flags
));
2961 spin_lock_irqsave(&rocker
->neigh_tbl_lock
, lock_flags
);
2963 found
= rocker_neigh_tbl_find(rocker
, ip_addr
);
2965 *index
= found
->index
;
2967 updating
= found
&& adding
;
2968 removing
= found
&& !adding
;
2969 adding
= !found
&& adding
;
2972 entry
->ip_addr
= ip_addr
;
2973 entry
->dev
= rocker_port
->dev
;
2974 _rocker_neigh_add(rocker
, entry
);
2975 *index
= entry
->index
;
2977 } else if (removing
) {
2978 _rocker_neigh_del(rocker
, found
);
2979 } else if (updating
) {
2980 _rocker_neigh_update(rocker
, found
, NULL
, false);
2981 resolved
= !is_zero_ether_addr(found
->eth_dst
);
2986 spin_unlock_irqrestore(&rocker
->neigh_tbl_lock
, lock_flags
);
2994 /* Resolved means neigh ip_addr is resolved to neigh mac. */
2997 err
= rocker_port_ipv4_resolve(rocker_port
, ip_addr
);
3002 static int rocker_port_vlan_flood_group(struct rocker_port
*rocker_port
,
3003 int flags
, __be16 vlan_id
)
3005 struct rocker_port
*p
;
3006 struct rocker
*rocker
= rocker_port
->rocker
;
3007 u32 group_id
= ROCKER_GROUP_L2_FLOOD(vlan_id
, 0);
3013 group_ids
= kcalloc(rocker
->port_count
, sizeof(u32
),
3014 rocker_op_flags_gfp(flags
));
3018 /* Adjust the flood group for this VLAN. The flood group
3019 * references an L2 interface group for each port in this
3023 for (i
= 0; i
< rocker
->port_count
; i
++) {
3024 p
= rocker
->ports
[i
];
3025 if (!rocker_port_is_bridged(p
))
3027 if (test_bit(ntohs(vlan_id
), p
->vlan_bitmap
)) {
3028 group_ids
[group_count
++] =
3029 ROCKER_GROUP_L2_INTERFACE(vlan_id
, p
->pport
);
3033 /* If there are no bridged ports in this VLAN, we're done */
3034 if (group_count
== 0)
3035 goto no_ports_in_vlan
;
3037 err
= rocker_group_l2_flood(rocker_port
, flags
, vlan_id
,
3038 group_count
, group_ids
,
3041 netdev_err(rocker_port
->dev
,
3042 "Error (%d) port VLAN l2 flood group\n", err
);
3049 static int rocker_port_vlan_l2_groups(struct rocker_port
*rocker_port
,
3050 int flags
, __be16 vlan_id
,
3053 struct rocker
*rocker
= rocker_port
->rocker
;
3054 struct rocker_port
*p
;
3055 bool adding
= !(flags
& ROCKER_OP_FLAG_REMOVE
);
3061 /* An L2 interface group for this port in this VLAN, but
3062 * only when port STP state is LEARNING|FORWARDING.
3065 if (rocker_port
->stp_state
== BR_STATE_LEARNING
||
3066 rocker_port
->stp_state
== BR_STATE_FORWARDING
) {
3067 out_pport
= rocker_port
->pport
;
3068 err
= rocker_group_l2_interface(rocker_port
, flags
,
3072 netdev_err(rocker_port
->dev
,
3073 "Error (%d) port VLAN l2 group for pport %d\n",
3079 /* An L2 interface group for this VLAN to CPU port.
3080 * Add when first port joins this VLAN and destroy when
3081 * last port leaves this VLAN.
3084 for (i
= 0; i
< rocker
->port_count
; i
++) {
3085 p
= rocker
->ports
[i
];
3086 if (test_bit(ntohs(vlan_id
), p
->vlan_bitmap
))
3090 if ((!adding
|| ref
!= 1) && (adding
|| ref
!= 0))
3094 err
= rocker_group_l2_interface(rocker_port
, flags
,
3098 netdev_err(rocker_port
->dev
,
3099 "Error (%d) port VLAN l2 group for CPU port\n", err
);
3106 static struct rocker_ctrl
{
3108 const u8
*eth_dst_mask
;
3114 } rocker_ctrls
[] = {
3115 [ROCKER_CTRL_LINK_LOCAL_MCAST
] = {
3116 /* pass link local multicast pkts up to CPU for filtering */
3118 .eth_dst_mask
= ll_mask
,
3121 [ROCKER_CTRL_LOCAL_ARP
] = {
3122 /* pass local ARP pkts up to CPU */
3123 .eth_dst
= zero_mac
,
3124 .eth_dst_mask
= zero_mac
,
3125 .eth_type
= htons(ETH_P_ARP
),
3128 [ROCKER_CTRL_IPV4_MCAST
] = {
3129 /* pass IPv4 mcast pkts up to CPU, RFC 1112 */
3130 .eth_dst
= ipv4_mcast
,
3131 .eth_dst_mask
= ipv4_mask
,
3132 .eth_type
= htons(ETH_P_IP
),
3134 .copy_to_cpu
= true,
3136 [ROCKER_CTRL_IPV6_MCAST
] = {
3137 /* pass IPv6 mcast pkts up to CPU, RFC 2464 */
3138 .eth_dst
= ipv6_mcast
,
3139 .eth_dst_mask
= ipv6_mask
,
3140 .eth_type
= htons(ETH_P_IPV6
),
3142 .copy_to_cpu
= true,
3144 [ROCKER_CTRL_DFLT_BRIDGING
] = {
3145 /* flood any pkts on vlan */
3147 .copy_to_cpu
= true,
3151 static int rocker_port_ctrl_vlan_acl(struct rocker_port
*rocker_port
,
3152 int flags
, struct rocker_ctrl
*ctrl
,
3155 u32 in_pport
= rocker_port
->pport
;
3156 u32 in_pport_mask
= 0xffffffff;
3159 u8
*eth_src_mask
= NULL
;
3160 __be16 vlan_id_mask
= htons(0xffff);
3162 u8 ip_proto_mask
= 0;
3165 u32 group_id
= ROCKER_GROUP_L2_INTERFACE(vlan_id
, out_pport
);
3168 err
= rocker_flow_tbl_acl(rocker_port
, flags
,
3169 in_pport
, in_pport_mask
,
3170 eth_src
, eth_src_mask
,
3171 ctrl
->eth_dst
, ctrl
->eth_dst_mask
,
3173 vlan_id
, vlan_id_mask
,
3174 ip_proto
, ip_proto_mask
,
3175 ip_tos
, ip_tos_mask
,
3179 netdev_err(rocker_port
->dev
, "Error (%d) ctrl ACL\n", err
);
3184 static int rocker_port_ctrl_vlan_bridge(struct rocker_port
*rocker_port
,
3185 int flags
, struct rocker_ctrl
*ctrl
,
3188 enum rocker_of_dpa_table_id goto_tbl
=
3189 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
3190 u32 group_id
= ROCKER_GROUP_L2_FLOOD(vlan_id
, 0);
3194 if (!rocker_port_is_bridged(rocker_port
))
3197 err
= rocker_flow_tbl_bridge(rocker_port
, flags
,
3198 ctrl
->eth_dst
, ctrl
->eth_dst_mask
,
3200 goto_tbl
, group_id
, ctrl
->copy_to_cpu
);
3203 netdev_err(rocker_port
->dev
, "Error (%d) ctrl FLOOD\n", err
);
3208 static int rocker_port_ctrl_vlan_term(struct rocker_port
*rocker_port
,
3209 int flags
, struct rocker_ctrl
*ctrl
,
3212 u32 in_pport_mask
= 0xffffffff;
3213 __be16 vlan_id_mask
= htons(0xffff);
3216 if (ntohs(vlan_id
) == 0)
3217 vlan_id
= rocker_port
->internal_vlan_id
;
3219 err
= rocker_flow_tbl_term_mac(rocker_port
,
3220 rocker_port
->pport
, in_pport_mask
,
3221 ctrl
->eth_type
, ctrl
->eth_dst
,
3222 ctrl
->eth_dst_mask
, vlan_id
,
3223 vlan_id_mask
, ctrl
->copy_to_cpu
,
3227 netdev_err(rocker_port
->dev
, "Error (%d) ctrl term\n", err
);
3232 static int rocker_port_ctrl_vlan(struct rocker_port
*rocker_port
, int flags
,
3233 struct rocker_ctrl
*ctrl
, __be16 vlan_id
)
3236 return rocker_port_ctrl_vlan_acl(rocker_port
, flags
,
3239 return rocker_port_ctrl_vlan_bridge(rocker_port
, flags
,
3243 return rocker_port_ctrl_vlan_term(rocker_port
, flags
,
3249 static int rocker_port_ctrl_vlan_add(struct rocker_port
*rocker_port
,
3250 int flags
, __be16 vlan_id
)
3255 for (i
= 0; i
< ROCKER_CTRL_MAX
; i
++) {
3256 if (rocker_port
->ctrls
[i
]) {
3257 err
= rocker_port_ctrl_vlan(rocker_port
, flags
,
3258 &rocker_ctrls
[i
], vlan_id
);
3267 static int rocker_port_ctrl(struct rocker_port
*rocker_port
, int flags
,
3268 struct rocker_ctrl
*ctrl
)
3273 for (vid
= 1; vid
< VLAN_N_VID
; vid
++) {
3274 if (!test_bit(vid
, rocker_port
->vlan_bitmap
))
3276 err
= rocker_port_ctrl_vlan(rocker_port
, flags
,
3285 static int rocker_port_vlan(struct rocker_port
*rocker_port
, int flags
,
3288 enum rocker_of_dpa_table_id goto_tbl
=
3289 ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC
;
3290 u32 in_pport
= rocker_port
->pport
;
3291 __be16 vlan_id
= htons(vid
);
3292 __be16 vlan_id_mask
= htons(0xffff);
3293 __be16 internal_vlan_id
;
3295 bool adding
= !(flags
& ROCKER_OP_FLAG_REMOVE
);
3298 internal_vlan_id
= rocker_port_vid_to_vlan(rocker_port
, vid
, &untagged
);
3300 if (adding
&& test_and_set_bit(ntohs(internal_vlan_id
),
3301 rocker_port
->vlan_bitmap
))
3302 return 0; /* already added */
3303 else if (!adding
&& !test_and_clear_bit(ntohs(internal_vlan_id
),
3304 rocker_port
->vlan_bitmap
))
3305 return 0; /* already removed */
3308 err
= rocker_port_ctrl_vlan_add(rocker_port
, flags
,
3311 netdev_err(rocker_port
->dev
,
3312 "Error (%d) port ctrl vlan add\n", err
);
3317 err
= rocker_port_vlan_l2_groups(rocker_port
, flags
,
3318 internal_vlan_id
, untagged
);
3320 netdev_err(rocker_port
->dev
,
3321 "Error (%d) port VLAN l2 groups\n", err
);
3325 err
= rocker_port_vlan_flood_group(rocker_port
, flags
,
3328 netdev_err(rocker_port
->dev
,
3329 "Error (%d) port VLAN l2 flood group\n", err
);
3333 err
= rocker_flow_tbl_vlan(rocker_port
, flags
,
3334 in_pport
, vlan_id
, vlan_id_mask
,
3335 goto_tbl
, untagged
, internal_vlan_id
);
3337 netdev_err(rocker_port
->dev
,
3338 "Error (%d) port VLAN table\n", err
);
3343 static int rocker_port_ig_tbl(struct rocker_port
*rocker_port
, int flags
)
3345 enum rocker_of_dpa_table_id goto_tbl
;
3350 /* Normal Ethernet Frames. Matches pkts from any local physical
3351 * ports. Goto VLAN tbl.
3355 in_pport_mask
= 0xffff0000;
3356 goto_tbl
= ROCKER_OF_DPA_TABLE_ID_VLAN
;
3358 err
= rocker_flow_tbl_ig_port(rocker_port
, flags
,
3359 in_pport
, in_pport_mask
,
3362 netdev_err(rocker_port
->dev
,
3363 "Error (%d) ingress port table entry\n", err
);
3368 struct rocker_fdb_learn_work
{
3369 struct work_struct work
;
3370 struct net_device
*dev
;
3376 static void rocker_port_fdb_learn_work(struct work_struct
*work
)
3378 struct rocker_fdb_learn_work
*lw
=
3379 container_of(work
, struct rocker_fdb_learn_work
, work
);
3380 bool removing
= (lw
->flags
& ROCKER_OP_FLAG_REMOVE
);
3381 bool learned
= (lw
->flags
& ROCKER_OP_FLAG_LEARNED
);
3382 struct netdev_switch_notifier_fdb_info info
;
3384 info
.addr
= lw
->addr
;
3387 if (learned
&& removing
)
3388 call_netdev_switch_notifiers(NETDEV_SWITCH_FDB_DEL
,
3389 lw
->dev
, &info
.info
);
3390 else if (learned
&& !removing
)
3391 call_netdev_switch_notifiers(NETDEV_SWITCH_FDB_ADD
,
3392 lw
->dev
, &info
.info
);
3397 static int rocker_port_fdb_learn(struct rocker_port
*rocker_port
,
3398 int flags
, const u8
*addr
, __be16 vlan_id
)
3400 struct rocker_fdb_learn_work
*lw
;
3401 enum rocker_of_dpa_table_id goto_tbl
=
3402 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
3403 u32 out_pport
= rocker_port
->pport
;
3405 u32 group_id
= ROCKER_GROUP_NONE
;
3406 bool syncing
= !!(rocker_port
->brport_flags
& BR_LEARNING_SYNC
);
3407 bool copy_to_cpu
= false;
3410 if (rocker_port_is_bridged(rocker_port
))
3411 group_id
= ROCKER_GROUP_L2_INTERFACE(vlan_id
, out_pport
);
3413 if (!(flags
& ROCKER_OP_FLAG_REFRESH
)) {
3414 err
= rocker_flow_tbl_bridge(rocker_port
, flags
, addr
, NULL
,
3415 vlan_id
, tunnel_id
, goto_tbl
,
3416 group_id
, copy_to_cpu
);
3424 if (!rocker_port_is_bridged(rocker_port
))
3427 lw
= kmalloc(sizeof(*lw
), rocker_op_flags_gfp(flags
));
3431 INIT_WORK(&lw
->work
, rocker_port_fdb_learn_work
);
3433 lw
->dev
= rocker_port
->dev
;
3435 ether_addr_copy(lw
->addr
, addr
);
3436 lw
->vid
= rocker_port_vlan_to_vid(rocker_port
, vlan_id
);
3438 schedule_work(&lw
->work
);
3443 static struct rocker_fdb_tbl_entry
*
3444 rocker_fdb_tbl_find(struct rocker
*rocker
, struct rocker_fdb_tbl_entry
*match
)
3446 struct rocker_fdb_tbl_entry
*found
;
3448 hash_for_each_possible(rocker
->fdb_tbl
, found
, entry
, match
->key_crc32
)
3449 if (memcmp(&found
->key
, &match
->key
, sizeof(found
->key
)) == 0)
3455 static int rocker_port_fdb(struct rocker_port
*rocker_port
,
3456 const unsigned char *addr
,
3457 __be16 vlan_id
, int flags
)
3459 struct rocker
*rocker
= rocker_port
->rocker
;
3460 struct rocker_fdb_tbl_entry
*fdb
;
3461 struct rocker_fdb_tbl_entry
*found
;
3462 bool removing
= (flags
& ROCKER_OP_FLAG_REMOVE
);
3463 unsigned long lock_flags
;
3465 fdb
= kzalloc(sizeof(*fdb
), rocker_op_flags_gfp(flags
));
3469 fdb
->learned
= (flags
& ROCKER_OP_FLAG_LEARNED
);
3470 fdb
->key
.pport
= rocker_port
->pport
;
3471 ether_addr_copy(fdb
->key
.addr
, addr
);
3472 fdb
->key
.vlan_id
= vlan_id
;
3473 fdb
->key_crc32
= crc32(~0, &fdb
->key
, sizeof(fdb
->key
));
3475 spin_lock_irqsave(&rocker
->fdb_tbl_lock
, lock_flags
);
3477 found
= rocker_fdb_tbl_find(rocker
, fdb
);
3479 if (removing
&& found
) {
3481 hash_del(&found
->entry
);
3482 } else if (!removing
&& !found
) {
3483 hash_add(rocker
->fdb_tbl
, &fdb
->entry
, fdb
->key_crc32
);
3486 spin_unlock_irqrestore(&rocker
->fdb_tbl_lock
, lock_flags
);
3488 /* Check if adding and already exists, or removing and can't find */
3489 if (!found
!= !removing
) {
3491 if (!found
&& removing
)
3493 /* Refreshing existing to update aging timers */
3494 flags
|= ROCKER_OP_FLAG_REFRESH
;
3497 return rocker_port_fdb_learn(rocker_port
, flags
, addr
, vlan_id
);
3500 static int rocker_port_fdb_flush(struct rocker_port
*rocker_port
)
3502 struct rocker
*rocker
= rocker_port
->rocker
;
3503 struct rocker_fdb_tbl_entry
*found
;
3504 unsigned long lock_flags
;
3505 int flags
= ROCKER_OP_FLAG_NOWAIT
| ROCKER_OP_FLAG_REMOVE
;
3506 struct hlist_node
*tmp
;
3510 if (rocker_port
->stp_state
== BR_STATE_LEARNING
||
3511 rocker_port
->stp_state
== BR_STATE_FORWARDING
)
3514 spin_lock_irqsave(&rocker
->fdb_tbl_lock
, lock_flags
);
3516 hash_for_each_safe(rocker
->fdb_tbl
, bkt
, tmp
, found
, entry
) {
3517 if (found
->key
.pport
!= rocker_port
->pport
)
3519 if (!found
->learned
)
3521 err
= rocker_port_fdb_learn(rocker_port
, flags
,
3523 found
->key
.vlan_id
);
3526 hash_del(&found
->entry
);
3530 spin_unlock_irqrestore(&rocker
->fdb_tbl_lock
, lock_flags
);
3535 static int rocker_port_router_mac(struct rocker_port
*rocker_port
,
3536 int flags
, __be16 vlan_id
)
3538 u32 in_pport_mask
= 0xffffffff;
3540 const u8
*dst_mac_mask
= ff_mac
;
3541 __be16 vlan_id_mask
= htons(0xffff);
3542 bool copy_to_cpu
= false;
3545 if (ntohs(vlan_id
) == 0)
3546 vlan_id
= rocker_port
->internal_vlan_id
;
3548 eth_type
= htons(ETH_P_IP
);
3549 err
= rocker_flow_tbl_term_mac(rocker_port
,
3550 rocker_port
->pport
, in_pport_mask
,
3551 eth_type
, rocker_port
->dev
->dev_addr
,
3552 dst_mac_mask
, vlan_id
, vlan_id_mask
,
3553 copy_to_cpu
, flags
);
3557 eth_type
= htons(ETH_P_IPV6
);
3558 err
= rocker_flow_tbl_term_mac(rocker_port
,
3559 rocker_port
->pport
, in_pport_mask
,
3560 eth_type
, rocker_port
->dev
->dev_addr
,
3561 dst_mac_mask
, vlan_id
, vlan_id_mask
,
3562 copy_to_cpu
, flags
);
3567 static int rocker_port_fwding(struct rocker_port
*rocker_port
)
3573 int flags
= ROCKER_OP_FLAG_NOWAIT
;
3576 /* Port will be forwarding-enabled if its STP state is LEARNING
3577 * or FORWARDING. Traffic from CPU can still egress, regardless of
3578 * port STP state. Use L2 interface group on port VLANs as a way
3579 * to toggle port forwarding: if forwarding is disabled, L2
3580 * interface group will not exist.
3583 if (rocker_port
->stp_state
!= BR_STATE_LEARNING
&&
3584 rocker_port
->stp_state
!= BR_STATE_FORWARDING
)
3585 flags
|= ROCKER_OP_FLAG_REMOVE
;
3587 out_pport
= rocker_port
->pport
;
3588 for (vid
= 1; vid
< VLAN_N_VID
; vid
++) {
3589 if (!test_bit(vid
, rocker_port
->vlan_bitmap
))
3591 vlan_id
= htons(vid
);
3592 pop_vlan
= rocker_vlan_id_is_internal(vlan_id
);
3593 err
= rocker_group_l2_interface(rocker_port
, flags
,
3597 netdev_err(rocker_port
->dev
,
3598 "Error (%d) port VLAN l2 group for pport %d\n",
3607 static int rocker_port_stp_update(struct rocker_port
*rocker_port
, u8 state
)
3609 bool want
[ROCKER_CTRL_MAX
] = { 0, };
3614 if (rocker_port
->stp_state
== state
)
3617 rocker_port
->stp_state
= state
;
3620 case BR_STATE_DISABLED
:
3621 /* port is completely disabled */
3623 case BR_STATE_LISTENING
:
3624 case BR_STATE_BLOCKING
:
3625 want
[ROCKER_CTRL_LINK_LOCAL_MCAST
] = true;
3627 case BR_STATE_LEARNING
:
3628 case BR_STATE_FORWARDING
:
3629 want
[ROCKER_CTRL_LINK_LOCAL_MCAST
] = true;
3630 want
[ROCKER_CTRL_IPV4_MCAST
] = true;
3631 want
[ROCKER_CTRL_IPV6_MCAST
] = true;
3632 if (rocker_port_is_bridged(rocker_port
))
3633 want
[ROCKER_CTRL_DFLT_BRIDGING
] = true;
3635 want
[ROCKER_CTRL_LOCAL_ARP
] = true;
3639 for (i
= 0; i
< ROCKER_CTRL_MAX
; i
++) {
3640 if (want
[i
] != rocker_port
->ctrls
[i
]) {
3641 flags
= ROCKER_OP_FLAG_NOWAIT
|
3642 (want
[i
] ? 0 : ROCKER_OP_FLAG_REMOVE
);
3643 err
= rocker_port_ctrl(rocker_port
, flags
,
3647 rocker_port
->ctrls
[i
] = want
[i
];
3651 err
= rocker_port_fdb_flush(rocker_port
);
3655 return rocker_port_fwding(rocker_port
);
3658 static int rocker_port_fwd_enable(struct rocker_port
*rocker_port
)
3660 if (rocker_port_is_bridged(rocker_port
))
3661 /* bridge STP will enable port */
3664 /* port is not bridged, so simulate going to FORWARDING state */
3665 return rocker_port_stp_update(rocker_port
, BR_STATE_FORWARDING
);
3668 static int rocker_port_fwd_disable(struct rocker_port
*rocker_port
)
3670 if (rocker_port_is_bridged(rocker_port
))
3671 /* bridge STP will disable port */
3674 /* port is not bridged, so simulate going to DISABLED state */
3675 return rocker_port_stp_update(rocker_port
, BR_STATE_DISABLED
);
3678 static struct rocker_internal_vlan_tbl_entry
*
3679 rocker_internal_vlan_tbl_find(struct rocker
*rocker
, int ifindex
)
3681 struct rocker_internal_vlan_tbl_entry
*found
;
3683 hash_for_each_possible(rocker
->internal_vlan_tbl
, found
,
3685 if (found
->ifindex
== ifindex
)
3692 static __be16
rocker_port_internal_vlan_id_get(struct rocker_port
*rocker_port
,
3695 struct rocker
*rocker
= rocker_port
->rocker
;
3696 struct rocker_internal_vlan_tbl_entry
*entry
;
3697 struct rocker_internal_vlan_tbl_entry
*found
;
3698 unsigned long lock_flags
;
3701 entry
= kzalloc(sizeof(*entry
), GFP_KERNEL
);
3705 entry
->ifindex
= ifindex
;
3707 spin_lock_irqsave(&rocker
->internal_vlan_tbl_lock
, lock_flags
);
3709 found
= rocker_internal_vlan_tbl_find(rocker
, ifindex
);
3716 hash_add(rocker
->internal_vlan_tbl
, &found
->entry
, found
->ifindex
);
3718 for (i
= 0; i
< ROCKER_N_INTERNAL_VLANS
; i
++) {
3719 if (test_and_set_bit(i
, rocker
->internal_vlan_bitmap
))
3721 found
->vlan_id
= htons(ROCKER_INTERNAL_VLAN_ID_BASE
+ i
);
3725 netdev_err(rocker_port
->dev
, "Out of internal VLAN IDs\n");
3729 spin_unlock_irqrestore(&rocker
->internal_vlan_tbl_lock
, lock_flags
);
3731 return found
->vlan_id
;
3734 static void rocker_port_internal_vlan_id_put(struct rocker_port
*rocker_port
,
3737 struct rocker
*rocker
= rocker_port
->rocker
;
3738 struct rocker_internal_vlan_tbl_entry
*found
;
3739 unsigned long lock_flags
;
3742 spin_lock_irqsave(&rocker
->internal_vlan_tbl_lock
, lock_flags
);
3744 found
= rocker_internal_vlan_tbl_find(rocker
, ifindex
);
3746 netdev_err(rocker_port
->dev
,
3747 "ifindex (%d) not found in internal VLAN tbl\n",
3752 if (--found
->ref_count
<= 0) {
3753 bit
= ntohs(found
->vlan_id
) - ROCKER_INTERNAL_VLAN_ID_BASE
;
3754 clear_bit(bit
, rocker
->internal_vlan_bitmap
);
3755 hash_del(&found
->entry
);
3760 spin_unlock_irqrestore(&rocker
->internal_vlan_tbl_lock
, lock_flags
);
3763 static int rocker_port_fib_ipv4(struct rocker_port
*rocker_port
, __be32 dst
,
3764 int dst_len
, struct fib_info
*fi
, u32 tb_id
,
3768 __be16 eth_type
= htons(ETH_P_IP
);
3769 __be32 dst_mask
= inet_make_mask(dst_len
);
3770 __be16 internal_vlan_id
= rocker_port
->internal_vlan_id
;
3771 u32 priority
= fi
->fib_priority
;
3772 enum rocker_of_dpa_table_id goto_tbl
=
3773 ROCKER_OF_DPA_TABLE_ID_ACL_POLICY
;
3780 /* XXX support ECMP */
3783 nh_on_port
= (fi
->fib_dev
== rocker_port
->dev
);
3784 has_gw
= !!nh
->nh_gw
;
3786 if (has_gw
&& nh_on_port
) {
3787 err
= rocker_port_ipv4_nh(rocker_port
, flags
,
3792 group_id
= ROCKER_GROUP_L3_UNICAST(index
);
3794 /* Send to CPU for processing */
3795 group_id
= ROCKER_GROUP_L2_INTERFACE(internal_vlan_id
, 0);
3798 err
= rocker_flow_tbl_ucast4_routing(rocker_port
, eth_type
, dst
,
3799 dst_mask
, priority
, goto_tbl
,
3802 netdev_err(rocker_port
->dev
, "Error (%d) IPv4 route %pI4\n",
3812 static int rocker_port_open(struct net_device
*dev
)
3814 struct rocker_port
*rocker_port
= netdev_priv(dev
);
3817 err
= rocker_port_dma_rings_init(rocker_port
);
3821 err
= request_irq(rocker_msix_tx_vector(rocker_port
),
3822 rocker_tx_irq_handler
, 0,
3823 rocker_driver_name
, rocker_port
);
3825 netdev_err(rocker_port
->dev
, "cannot assign tx irq\n");
3826 goto err_request_tx_irq
;
3829 err
= request_irq(rocker_msix_rx_vector(rocker_port
),
3830 rocker_rx_irq_handler
, 0,
3831 rocker_driver_name
, rocker_port
);
3833 netdev_err(rocker_port
->dev
, "cannot assign rx irq\n");
3834 goto err_request_rx_irq
;
3837 err
= rocker_port_fwd_enable(rocker_port
);
3839 goto err_fwd_enable
;
3841 napi_enable(&rocker_port
->napi_tx
);
3842 napi_enable(&rocker_port
->napi_rx
);
3843 rocker_port_set_enable(rocker_port
, true);
3844 netif_start_queue(dev
);
3848 free_irq(rocker_msix_rx_vector(rocker_port
), rocker_port
);
3850 free_irq(rocker_msix_tx_vector(rocker_port
), rocker_port
);
3852 rocker_port_dma_rings_fini(rocker_port
);
3856 static int rocker_port_stop(struct net_device
*dev
)
3858 struct rocker_port
*rocker_port
= netdev_priv(dev
);
3860 netif_stop_queue(dev
);
3861 rocker_port_set_enable(rocker_port
, false);
3862 napi_disable(&rocker_port
->napi_rx
);
3863 napi_disable(&rocker_port
->napi_tx
);
3864 rocker_port_fwd_disable(rocker_port
);
3865 free_irq(rocker_msix_rx_vector(rocker_port
), rocker_port
);
3866 free_irq(rocker_msix_tx_vector(rocker_port
), rocker_port
);
3867 rocker_port_dma_rings_fini(rocker_port
);
3872 static void rocker_tx_desc_frags_unmap(struct rocker_port
*rocker_port
,
3873 struct rocker_desc_info
*desc_info
)
3875 struct rocker
*rocker
= rocker_port
->rocker
;
3876 struct pci_dev
*pdev
= rocker
->pdev
;
3877 struct rocker_tlv
*attrs
[ROCKER_TLV_TX_MAX
+ 1];
3878 struct rocker_tlv
*attr
;
3881 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_TX_MAX
, desc_info
);
3882 if (!attrs
[ROCKER_TLV_TX_FRAGS
])
3884 rocker_tlv_for_each_nested(attr
, attrs
[ROCKER_TLV_TX_FRAGS
], rem
) {
3885 struct rocker_tlv
*frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_MAX
+ 1];
3886 dma_addr_t dma_handle
;
3889 if (rocker_tlv_type(attr
) != ROCKER_TLV_TX_FRAG
)
3891 rocker_tlv_parse_nested(frag_attrs
, ROCKER_TLV_TX_FRAG_ATTR_MAX
,
3893 if (!frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_ADDR
] ||
3894 !frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_LEN
])
3896 dma_handle
= rocker_tlv_get_u64(frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_ADDR
]);
3897 len
= rocker_tlv_get_u16(frag_attrs
[ROCKER_TLV_TX_FRAG_ATTR_LEN
]);
3898 pci_unmap_single(pdev
, dma_handle
, len
, DMA_TO_DEVICE
);
3902 static int rocker_tx_desc_frag_map_put(struct rocker_port
*rocker_port
,
3903 struct rocker_desc_info
*desc_info
,
3904 char *buf
, size_t buf_len
)
3906 struct rocker
*rocker
= rocker_port
->rocker
;
3907 struct pci_dev
*pdev
= rocker
->pdev
;
3908 dma_addr_t dma_handle
;
3909 struct rocker_tlv
*frag
;
3911 dma_handle
= pci_map_single(pdev
, buf
, buf_len
, DMA_TO_DEVICE
);
3912 if (unlikely(pci_dma_mapping_error(pdev
, dma_handle
))) {
3913 if (net_ratelimit())
3914 netdev_err(rocker_port
->dev
, "failed to dma map tx frag\n");
3917 frag
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_TX_FRAG
);
3920 if (rocker_tlv_put_u64(desc_info
, ROCKER_TLV_TX_FRAG_ATTR_ADDR
,
3923 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_TX_FRAG_ATTR_LEN
,
3926 rocker_tlv_nest_end(desc_info
, frag
);
3930 rocker_tlv_nest_cancel(desc_info
, frag
);
3932 pci_unmap_single(pdev
, dma_handle
, buf_len
, DMA_TO_DEVICE
);
3936 static netdev_tx_t
rocker_port_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
3938 struct rocker_port
*rocker_port
= netdev_priv(dev
);
3939 struct rocker
*rocker
= rocker_port
->rocker
;
3940 struct rocker_desc_info
*desc_info
;
3941 struct rocker_tlv
*frags
;
3945 desc_info
= rocker_desc_head_get(&rocker_port
->tx_ring
);
3946 if (unlikely(!desc_info
)) {
3947 if (net_ratelimit())
3948 netdev_err(dev
, "tx ring full when queue awake\n");
3949 return NETDEV_TX_BUSY
;
3952 rocker_desc_cookie_ptr_set(desc_info
, skb
);
3954 frags
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_TX_FRAGS
);
3957 err
= rocker_tx_desc_frag_map_put(rocker_port
, desc_info
,
3958 skb
->data
, skb_headlen(skb
));
3961 if (skb_shinfo(skb
)->nr_frags
> ROCKER_TX_FRAGS_MAX
)
3964 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
3965 const skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
3967 err
= rocker_tx_desc_frag_map_put(rocker_port
, desc_info
,
3968 skb_frag_address(frag
),
3969 skb_frag_size(frag
));
3973 rocker_tlv_nest_end(desc_info
, frags
);
3975 rocker_desc_gen_clear(desc_info
);
3976 rocker_desc_head_set(rocker
, &rocker_port
->tx_ring
, desc_info
);
3978 desc_info
= rocker_desc_head_get(&rocker_port
->tx_ring
);
3980 netif_stop_queue(dev
);
3982 return NETDEV_TX_OK
;
3985 rocker_tx_desc_frags_unmap(rocker_port
, desc_info
);
3987 rocker_tlv_nest_cancel(desc_info
, frags
);
3990 dev
->stats
.tx_dropped
++;
3992 return NETDEV_TX_OK
;
3995 static int rocker_port_set_mac_address(struct net_device
*dev
, void *p
)
3997 struct sockaddr
*addr
= p
;
3998 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4001 if (!is_valid_ether_addr(addr
->sa_data
))
4002 return -EADDRNOTAVAIL
;
4004 err
= rocker_cmd_set_port_settings_macaddr(rocker_port
, addr
->sa_data
);
4007 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
4011 static int rocker_port_vlan_rx_add_vid(struct net_device
*dev
,
4012 __be16 proto
, u16 vid
)
4014 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4017 err
= rocker_port_vlan(rocker_port
, 0, vid
);
4021 return rocker_port_router_mac(rocker_port
, 0, htons(vid
));
4024 static int rocker_port_vlan_rx_kill_vid(struct net_device
*dev
,
4025 __be16 proto
, u16 vid
)
4027 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4030 err
= rocker_port_router_mac(rocker_port
, ROCKER_OP_FLAG_REMOVE
,
4035 return rocker_port_vlan(rocker_port
, ROCKER_OP_FLAG_REMOVE
, vid
);
4038 static int rocker_port_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
4039 struct net_device
*dev
,
4040 const unsigned char *addr
, u16 vid
,
4043 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4044 __be16 vlan_id
= rocker_port_vid_to_vlan(rocker_port
, vid
, NULL
);
4047 if (!rocker_port_is_bridged(rocker_port
))
4050 return rocker_port_fdb(rocker_port
, addr
, vlan_id
, flags
);
4053 static int rocker_port_fdb_del(struct ndmsg
*ndm
, struct nlattr
*tb
[],
4054 struct net_device
*dev
,
4055 const unsigned char *addr
, u16 vid
)
4057 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4058 __be16 vlan_id
= rocker_port_vid_to_vlan(rocker_port
, vid
, NULL
);
4059 int flags
= ROCKER_OP_FLAG_REMOVE
;
4061 if (!rocker_port_is_bridged(rocker_port
))
4064 return rocker_port_fdb(rocker_port
, addr
, vlan_id
, flags
);
4067 static int rocker_fdb_fill_info(struct sk_buff
*skb
,
4068 struct rocker_port
*rocker_port
,
4069 const unsigned char *addr
, u16 vid
,
4070 u32 portid
, u32 seq
, int type
,
4073 struct nlmsghdr
*nlh
;
4076 nlh
= nlmsg_put(skb
, portid
, seq
, type
, sizeof(*ndm
), flags
);
4080 ndm
= nlmsg_data(nlh
);
4081 ndm
->ndm_family
= AF_BRIDGE
;
4084 ndm
->ndm_flags
= NTF_SELF
;
4086 ndm
->ndm_ifindex
= rocker_port
->dev
->ifindex
;
4087 ndm
->ndm_state
= NUD_REACHABLE
;
4089 if (nla_put(skb
, NDA_LLADDR
, ETH_ALEN
, addr
))
4090 goto nla_put_failure
;
4092 if (vid
&& nla_put_u16(skb
, NDA_VLAN
, vid
))
4093 goto nla_put_failure
;
4095 nlmsg_end(skb
, nlh
);
4099 nlmsg_cancel(skb
, nlh
);
4103 static int rocker_port_fdb_dump(struct sk_buff
*skb
,
4104 struct netlink_callback
*cb
,
4105 struct net_device
*dev
,
4106 struct net_device
*filter_dev
,
4109 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4110 struct rocker
*rocker
= rocker_port
->rocker
;
4111 struct rocker_fdb_tbl_entry
*found
;
4112 struct hlist_node
*tmp
;
4114 unsigned long lock_flags
;
4115 const unsigned char *addr
;
4119 spin_lock_irqsave(&rocker
->fdb_tbl_lock
, lock_flags
);
4120 hash_for_each_safe(rocker
->fdb_tbl
, bkt
, tmp
, found
, entry
) {
4121 if (found
->key
.pport
!= rocker_port
->pport
)
4123 if (idx
< cb
->args
[0])
4125 addr
= found
->key
.addr
;
4126 vid
= rocker_port_vlan_to_vid(rocker_port
, found
->key
.vlan_id
);
4127 err
= rocker_fdb_fill_info(skb
, rocker_port
, addr
, vid
,
4128 NETLINK_CB(cb
->skb
).portid
,
4130 RTM_NEWNEIGH
, NLM_F_MULTI
);
4136 spin_unlock_irqrestore(&rocker
->fdb_tbl_lock
, lock_flags
);
4140 static int rocker_port_bridge_setlink(struct net_device
*dev
,
4141 struct nlmsghdr
*nlh
, u16 flags
)
4143 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4144 struct nlattr
*protinfo
;
4145 struct nlattr
*attr
;
4148 protinfo
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
),
4151 attr
= nla_find_nested(protinfo
, IFLA_BRPORT_LEARNING
);
4153 if (nla_len(attr
) < sizeof(u8
))
4156 if (nla_get_u8(attr
))
4157 rocker_port
->brport_flags
|= BR_LEARNING
;
4159 rocker_port
->brport_flags
&= ~BR_LEARNING
;
4160 err
= rocker_port_set_learning(rocker_port
);
4164 attr
= nla_find_nested(protinfo
, IFLA_BRPORT_LEARNING_SYNC
);
4166 if (nla_len(attr
) < sizeof(u8
))
4169 if (nla_get_u8(attr
))
4170 rocker_port
->brport_flags
|= BR_LEARNING_SYNC
;
4172 rocker_port
->brport_flags
&= ~BR_LEARNING_SYNC
;
4179 static int rocker_port_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
4180 struct net_device
*dev
,
4181 u32 filter_mask
, int nlflags
)
4183 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4184 u16 mode
= BRIDGE_MODE_UNDEF
;
4185 u32 mask
= BR_LEARNING
| BR_LEARNING_SYNC
;
4187 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, mode
,
4188 rocker_port
->brport_flags
, mask
,
4192 static int rocker_port_get_phys_port_name(struct net_device
*dev
,
4193 char *buf
, size_t len
)
4195 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4196 struct port_name name
= { .buf
= buf
, .len
= len
};
4199 err
= rocker_cmd_exec(rocker_port
->rocker
, rocker_port
,
4200 rocker_cmd_get_port_settings_prep
, NULL
,
4201 rocker_cmd_get_port_settings_phys_name_proc
,
4204 return err
? -EOPNOTSUPP
: 0;
4207 static const struct net_device_ops rocker_port_netdev_ops
= {
4208 .ndo_open
= rocker_port_open
,
4209 .ndo_stop
= rocker_port_stop
,
4210 .ndo_start_xmit
= rocker_port_xmit
,
4211 .ndo_set_mac_address
= rocker_port_set_mac_address
,
4212 .ndo_vlan_rx_add_vid
= rocker_port_vlan_rx_add_vid
,
4213 .ndo_vlan_rx_kill_vid
= rocker_port_vlan_rx_kill_vid
,
4214 .ndo_fdb_add
= rocker_port_fdb_add
,
4215 .ndo_fdb_del
= rocker_port_fdb_del
,
4216 .ndo_fdb_dump
= rocker_port_fdb_dump
,
4217 .ndo_bridge_setlink
= rocker_port_bridge_setlink
,
4218 .ndo_bridge_getlink
= rocker_port_bridge_getlink
,
4219 .ndo_get_phys_port_name
= rocker_port_get_phys_port_name
,
4222 /********************
4224 ********************/
4226 static int rocker_port_swdev_parent_id_get(struct net_device
*dev
,
4227 struct netdev_phys_item_id
*psid
)
4229 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4230 struct rocker
*rocker
= rocker_port
->rocker
;
4232 psid
->id_len
= sizeof(rocker
->hw
.id
);
4233 memcpy(&psid
->id
, &rocker
->hw
.id
, psid
->id_len
);
4237 static int rocker_port_swdev_port_stp_update(struct net_device
*dev
, u8 state
)
4239 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4241 return rocker_port_stp_update(rocker_port
, state
);
4244 static int rocker_port_swdev_fib_ipv4_add(struct net_device
*dev
,
4245 __be32 dst
, int dst_len
,
4246 struct fib_info
*fi
,
4248 u32 nlflags
, u32 tb_id
)
4250 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4253 return rocker_port_fib_ipv4(rocker_port
, dst
, dst_len
,
4257 static int rocker_port_swdev_fib_ipv4_del(struct net_device
*dev
,
4258 __be32 dst
, int dst_len
,
4259 struct fib_info
*fi
,
4260 u8 tos
, u8 type
, u32 tb_id
)
4262 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4263 int flags
= ROCKER_OP_FLAG_REMOVE
;
4265 return rocker_port_fib_ipv4(rocker_port
, dst
, dst_len
,
4269 static const struct swdev_ops rocker_port_swdev_ops
= {
4270 .swdev_parent_id_get
= rocker_port_swdev_parent_id_get
,
4271 .swdev_port_stp_update
= rocker_port_swdev_port_stp_update
,
4272 .swdev_fib_ipv4_add
= rocker_port_swdev_fib_ipv4_add
,
4273 .swdev_fib_ipv4_del
= rocker_port_swdev_fib_ipv4_del
,
4276 /********************
4278 ********************/
4280 static int rocker_port_get_settings(struct net_device
*dev
,
4281 struct ethtool_cmd
*ecmd
)
4283 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4285 return rocker_cmd_get_port_settings_ethtool(rocker_port
, ecmd
);
4288 static int rocker_port_set_settings(struct net_device
*dev
,
4289 struct ethtool_cmd
*ecmd
)
4291 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4293 return rocker_cmd_set_port_settings_ethtool(rocker_port
, ecmd
);
4296 static void rocker_port_get_drvinfo(struct net_device
*dev
,
4297 struct ethtool_drvinfo
*drvinfo
)
4299 strlcpy(drvinfo
->driver
, rocker_driver_name
, sizeof(drvinfo
->driver
));
4300 strlcpy(drvinfo
->version
, UTS_RELEASE
, sizeof(drvinfo
->version
));
4303 static struct rocker_port_stats
{
4304 char str
[ETH_GSTRING_LEN
];
4306 } rocker_port_stats
[] = {
4307 { "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS
, },
4308 { "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES
, },
4309 { "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED
, },
4310 { "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS
, },
4312 { "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS
, },
4313 { "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES
, },
4314 { "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED
, },
4315 { "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS
, },
4318 #define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats)
4320 static void rocker_port_get_strings(struct net_device
*netdev
, u32 stringset
,
4326 switch (stringset
) {
4328 for (i
= 0; i
< ARRAY_SIZE(rocker_port_stats
); i
++) {
4329 memcpy(p
, rocker_port_stats
[i
].str
, ETH_GSTRING_LEN
);
4330 p
+= ETH_GSTRING_LEN
;
4337 rocker_cmd_get_port_stats_prep(struct rocker
*rocker
,
4338 struct rocker_port
*rocker_port
,
4339 struct rocker_desc_info
*desc_info
,
4342 struct rocker_tlv
*cmd_stats
;
4344 if (rocker_tlv_put_u16(desc_info
, ROCKER_TLV_CMD_TYPE
,
4345 ROCKER_TLV_CMD_TYPE_GET_PORT_STATS
))
4348 cmd_stats
= rocker_tlv_nest_start(desc_info
, ROCKER_TLV_CMD_INFO
);
4352 if (rocker_tlv_put_u32(desc_info
, ROCKER_TLV_CMD_PORT_STATS_PPORT
,
4353 rocker_port
->pport
))
4356 rocker_tlv_nest_end(desc_info
, cmd_stats
);
4362 rocker_cmd_get_port_stats_ethtool_proc(struct rocker
*rocker
,
4363 struct rocker_port
*rocker_port
,
4364 struct rocker_desc_info
*desc_info
,
4367 struct rocker_tlv
*attrs
[ROCKER_TLV_CMD_MAX
+ 1];
4368 struct rocker_tlv
*stats_attrs
[ROCKER_TLV_CMD_PORT_STATS_MAX
+ 1];
4369 struct rocker_tlv
*pattr
;
4374 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_CMD_MAX
, desc_info
);
4376 if (!attrs
[ROCKER_TLV_CMD_INFO
])
4379 rocker_tlv_parse_nested(stats_attrs
, ROCKER_TLV_CMD_PORT_STATS_MAX
,
4380 attrs
[ROCKER_TLV_CMD_INFO
]);
4382 if (!stats_attrs
[ROCKER_TLV_CMD_PORT_STATS_PPORT
])
4385 pport
= rocker_tlv_get_u32(stats_attrs
[ROCKER_TLV_CMD_PORT_STATS_PPORT
]);
4386 if (pport
!= rocker_port
->pport
)
4389 for (i
= 0; i
< ARRAY_SIZE(rocker_port_stats
); i
++) {
4390 pattr
= stats_attrs
[rocker_port_stats
[i
].type
];
4394 data
[i
] = rocker_tlv_get_u64(pattr
);
4400 static int rocker_cmd_get_port_stats_ethtool(struct rocker_port
*rocker_port
,
4403 return rocker_cmd_exec(rocker_port
->rocker
, rocker_port
,
4404 rocker_cmd_get_port_stats_prep
, NULL
,
4405 rocker_cmd_get_port_stats_ethtool_proc
,
4409 static void rocker_port_get_stats(struct net_device
*dev
,
4410 struct ethtool_stats
*stats
, u64
*data
)
4412 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4414 if (rocker_cmd_get_port_stats_ethtool(rocker_port
, data
) != 0) {
4417 for (i
= 0; i
< ARRAY_SIZE(rocker_port_stats
); ++i
)
4424 static int rocker_port_get_sset_count(struct net_device
*netdev
, int sset
)
4428 return ROCKER_PORT_STATS_LEN
;
4434 static const struct ethtool_ops rocker_port_ethtool_ops
= {
4435 .get_settings
= rocker_port_get_settings
,
4436 .set_settings
= rocker_port_set_settings
,
4437 .get_drvinfo
= rocker_port_get_drvinfo
,
4438 .get_link
= ethtool_op_get_link
,
4439 .get_strings
= rocker_port_get_strings
,
4440 .get_ethtool_stats
= rocker_port_get_stats
,
4441 .get_sset_count
= rocker_port_get_sset_count
,
4448 static struct rocker_port
*rocker_port_napi_tx_get(struct napi_struct
*napi
)
4450 return container_of(napi
, struct rocker_port
, napi_tx
);
4453 static int rocker_port_poll_tx(struct napi_struct
*napi
, int budget
)
4455 struct rocker_port
*rocker_port
= rocker_port_napi_tx_get(napi
);
4456 struct rocker
*rocker
= rocker_port
->rocker
;
4457 struct rocker_desc_info
*desc_info
;
4461 /* Cleanup tx descriptors */
4462 while ((desc_info
= rocker_desc_tail_get(&rocker_port
->tx_ring
))) {
4463 struct sk_buff
*skb
;
4465 err
= rocker_desc_err(desc_info
);
4466 if (err
&& net_ratelimit())
4467 netdev_err(rocker_port
->dev
, "tx desc received with err %d\n",
4469 rocker_tx_desc_frags_unmap(rocker_port
, desc_info
);
4471 skb
= rocker_desc_cookie_ptr_get(desc_info
);
4473 rocker_port
->dev
->stats
.tx_packets
++;
4474 rocker_port
->dev
->stats
.tx_bytes
+= skb
->len
;
4476 rocker_port
->dev
->stats
.tx_errors
++;
4478 dev_kfree_skb_any(skb
);
4482 if (credits
&& netif_queue_stopped(rocker_port
->dev
))
4483 netif_wake_queue(rocker_port
->dev
);
4485 napi_complete(napi
);
4486 rocker_dma_ring_credits_set(rocker
, &rocker_port
->tx_ring
, credits
);
4491 static int rocker_port_rx_proc(struct rocker
*rocker
,
4492 struct rocker_port
*rocker_port
,
4493 struct rocker_desc_info
*desc_info
)
4495 struct rocker_tlv
*attrs
[ROCKER_TLV_RX_MAX
+ 1];
4496 struct sk_buff
*skb
= rocker_desc_cookie_ptr_get(desc_info
);
4502 rocker_tlv_parse_desc(attrs
, ROCKER_TLV_RX_MAX
, desc_info
);
4503 if (!attrs
[ROCKER_TLV_RX_FRAG_LEN
])
4506 rocker_dma_rx_ring_skb_unmap(rocker
, attrs
);
4508 rx_len
= rocker_tlv_get_u16(attrs
[ROCKER_TLV_RX_FRAG_LEN
]);
4509 skb_put(skb
, rx_len
);
4510 skb
->protocol
= eth_type_trans(skb
, rocker_port
->dev
);
4512 rocker_port
->dev
->stats
.rx_packets
++;
4513 rocker_port
->dev
->stats
.rx_bytes
+= skb
->len
;
4515 netif_receive_skb(skb
);
4517 return rocker_dma_rx_ring_skb_alloc(rocker
, rocker_port
, desc_info
);
4520 static struct rocker_port
*rocker_port_napi_rx_get(struct napi_struct
*napi
)
4522 return container_of(napi
, struct rocker_port
, napi_rx
);
4525 static int rocker_port_poll_rx(struct napi_struct
*napi
, int budget
)
4527 struct rocker_port
*rocker_port
= rocker_port_napi_rx_get(napi
);
4528 struct rocker
*rocker
= rocker_port
->rocker
;
4529 struct rocker_desc_info
*desc_info
;
4533 /* Process rx descriptors */
4534 while (credits
< budget
&&
4535 (desc_info
= rocker_desc_tail_get(&rocker_port
->rx_ring
))) {
4536 err
= rocker_desc_err(desc_info
);
4538 if (net_ratelimit())
4539 netdev_err(rocker_port
->dev
, "rx desc received with err %d\n",
4542 err
= rocker_port_rx_proc(rocker
, rocker_port
,
4544 if (err
&& net_ratelimit())
4545 netdev_err(rocker_port
->dev
, "rx processing failed with err %d\n",
4549 rocker_port
->dev
->stats
.rx_errors
++;
4551 rocker_desc_gen_clear(desc_info
);
4552 rocker_desc_head_set(rocker
, &rocker_port
->rx_ring
, desc_info
);
4556 if (credits
< budget
)
4557 napi_complete(napi
);
4559 rocker_dma_ring_credits_set(rocker
, &rocker_port
->rx_ring
, credits
);
4568 static void rocker_carrier_init(struct rocker_port
*rocker_port
)
4570 struct rocker
*rocker
= rocker_port
->rocker
;
4571 u64 link_status
= rocker_read64(rocker
, PORT_PHYS_LINK_STATUS
);
4574 link_up
= link_status
& (1 << rocker_port
->pport
);
4576 netif_carrier_on(rocker_port
->dev
);
4578 netif_carrier_off(rocker_port
->dev
);
4581 static void rocker_remove_ports(struct rocker
*rocker
)
4583 struct rocker_port
*rocker_port
;
4586 for (i
= 0; i
< rocker
->port_count
; i
++) {
4587 rocker_port
= rocker
->ports
[i
];
4588 rocker_port_ig_tbl(rocker_port
, ROCKER_OP_FLAG_REMOVE
);
4589 unregister_netdev(rocker_port
->dev
);
4591 kfree(rocker
->ports
);
4594 static void rocker_port_dev_addr_init(struct rocker
*rocker
,
4595 struct rocker_port
*rocker_port
)
4597 struct pci_dev
*pdev
= rocker
->pdev
;
4600 err
= rocker_cmd_get_port_settings_macaddr(rocker_port
,
4601 rocker_port
->dev
->dev_addr
);
4603 dev_warn(&pdev
->dev
, "failed to get mac address, using random\n");
4604 eth_hw_addr_random(rocker_port
->dev
);
4608 static int rocker_probe_port(struct rocker
*rocker
, unsigned int port_number
)
4610 struct pci_dev
*pdev
= rocker
->pdev
;
4611 struct rocker_port
*rocker_port
;
4612 struct net_device
*dev
;
4615 dev
= alloc_etherdev(sizeof(struct rocker_port
));
4618 rocker_port
= netdev_priv(dev
);
4619 rocker_port
->dev
= dev
;
4620 rocker_port
->rocker
= rocker
;
4621 rocker_port
->port_number
= port_number
;
4622 rocker_port
->pport
= port_number
+ 1;
4623 rocker_port
->brport_flags
= BR_LEARNING
| BR_LEARNING_SYNC
;
4625 rocker_port_dev_addr_init(rocker
, rocker_port
);
4626 dev
->netdev_ops
= &rocker_port_netdev_ops
;
4627 dev
->ethtool_ops
= &rocker_port_ethtool_ops
;
4628 dev
->swdev_ops
= &rocker_port_swdev_ops
;
4629 netif_napi_add(dev
, &rocker_port
->napi_tx
, rocker_port_poll_tx
,
4631 netif_napi_add(dev
, &rocker_port
->napi_rx
, rocker_port_poll_rx
,
4633 rocker_carrier_init(rocker_port
);
4635 dev
->features
|= NETIF_F_NETNS_LOCAL
|
4636 NETIF_F_HW_VLAN_CTAG_FILTER
|
4637 NETIF_F_HW_SWITCH_OFFLOAD
;
4639 err
= register_netdev(dev
);
4641 dev_err(&pdev
->dev
, "register_netdev failed\n");
4642 goto err_register_netdev
;
4644 rocker
->ports
[port_number
] = rocker_port
;
4646 rocker_port_set_learning(rocker_port
);
4648 rocker_port
->internal_vlan_id
=
4649 rocker_port_internal_vlan_id_get(rocker_port
, dev
->ifindex
);
4650 err
= rocker_port_ig_tbl(rocker_port
, 0);
4652 dev_err(&pdev
->dev
, "install ig port table failed\n");
4653 goto err_port_ig_tbl
;
4659 unregister_netdev(dev
);
4660 err_register_netdev
:
4665 static int rocker_probe_ports(struct rocker
*rocker
)
4671 alloc_size
= sizeof(struct rocker_port
*) * rocker
->port_count
;
4672 rocker
->ports
= kmalloc(alloc_size
, GFP_KERNEL
);
4675 for (i
= 0; i
< rocker
->port_count
; i
++) {
4676 err
= rocker_probe_port(rocker
, i
);
4683 rocker_remove_ports(rocker
);
4687 static int rocker_msix_init(struct rocker
*rocker
)
4689 struct pci_dev
*pdev
= rocker
->pdev
;
4694 msix_entries
= pci_msix_vec_count(pdev
);
4695 if (msix_entries
< 0)
4696 return msix_entries
;
4698 if (msix_entries
!= ROCKER_MSIX_VEC_COUNT(rocker
->port_count
))
4701 rocker
->msix_entries
= kmalloc_array(msix_entries
,
4702 sizeof(struct msix_entry
),
4704 if (!rocker
->msix_entries
)
4707 for (i
= 0; i
< msix_entries
; i
++)
4708 rocker
->msix_entries
[i
].entry
= i
;
4710 err
= pci_enable_msix_exact(pdev
, rocker
->msix_entries
, msix_entries
);
4712 goto err_enable_msix
;
4717 kfree(rocker
->msix_entries
);
4721 static void rocker_msix_fini(struct rocker
*rocker
)
4723 pci_disable_msix(rocker
->pdev
);
4724 kfree(rocker
->msix_entries
);
4727 static int rocker_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
4729 struct rocker
*rocker
;
4732 rocker
= kzalloc(sizeof(*rocker
), GFP_KERNEL
);
4736 err
= pci_enable_device(pdev
);
4738 dev_err(&pdev
->dev
, "pci_enable_device failed\n");
4739 goto err_pci_enable_device
;
4742 err
= pci_request_regions(pdev
, rocker_driver_name
);
4744 dev_err(&pdev
->dev
, "pci_request_regions failed\n");
4745 goto err_pci_request_regions
;
4748 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
4750 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(64));
4752 dev_err(&pdev
->dev
, "pci_set_consistent_dma_mask failed\n");
4753 goto err_pci_set_dma_mask
;
4756 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
4758 dev_err(&pdev
->dev
, "pci_set_dma_mask failed\n");
4759 goto err_pci_set_dma_mask
;
4763 if (pci_resource_len(pdev
, 0) < ROCKER_PCI_BAR0_SIZE
) {
4764 dev_err(&pdev
->dev
, "invalid PCI region size\n");
4766 goto err_pci_resource_len_check
;
4769 rocker
->hw_addr
= ioremap(pci_resource_start(pdev
, 0),
4770 pci_resource_len(pdev
, 0));
4771 if (!rocker
->hw_addr
) {
4772 dev_err(&pdev
->dev
, "ioremap failed\n");
4776 pci_set_master(pdev
);
4778 rocker
->pdev
= pdev
;
4779 pci_set_drvdata(pdev
, rocker
);
4781 rocker
->port_count
= rocker_read32(rocker
, PORT_PHYS_COUNT
);
4783 err
= rocker_msix_init(rocker
);
4785 dev_err(&pdev
->dev
, "MSI-X init failed\n");
4789 err
= rocker_basic_hw_test(rocker
);
4791 dev_err(&pdev
->dev
, "basic hw test failed\n");
4792 goto err_basic_hw_test
;
4795 rocker_write32(rocker
, CONTROL
, ROCKER_CONTROL_RESET
);
4797 err
= rocker_dma_rings_init(rocker
);
4799 goto err_dma_rings_init
;
4801 err
= request_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_CMD
),
4802 rocker_cmd_irq_handler
, 0,
4803 rocker_driver_name
, rocker
);
4805 dev_err(&pdev
->dev
, "cannot assign cmd irq\n");
4806 goto err_request_cmd_irq
;
4809 err
= request_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_EVENT
),
4810 rocker_event_irq_handler
, 0,
4811 rocker_driver_name
, rocker
);
4813 dev_err(&pdev
->dev
, "cannot assign event irq\n");
4814 goto err_request_event_irq
;
4817 rocker
->hw
.id
= rocker_read64(rocker
, SWITCH_ID
);
4819 err
= rocker_init_tbls(rocker
);
4821 dev_err(&pdev
->dev
, "cannot init rocker tables\n");
4825 err
= rocker_probe_ports(rocker
);
4827 dev_err(&pdev
->dev
, "failed to probe ports\n");
4828 goto err_probe_ports
;
4831 dev_info(&pdev
->dev
, "Rocker switch with id %016llx\n", rocker
->hw
.id
);
4836 rocker_free_tbls(rocker
);
4838 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_EVENT
), rocker
);
4839 err_request_event_irq
:
4840 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_CMD
), rocker
);
4841 err_request_cmd_irq
:
4842 rocker_dma_rings_fini(rocker
);
4845 rocker_msix_fini(rocker
);
4847 iounmap(rocker
->hw_addr
);
4849 err_pci_resource_len_check
:
4850 err_pci_set_dma_mask
:
4851 pci_release_regions(pdev
);
4852 err_pci_request_regions
:
4853 pci_disable_device(pdev
);
4854 err_pci_enable_device
:
4859 static void rocker_remove(struct pci_dev
*pdev
)
4861 struct rocker
*rocker
= pci_get_drvdata(pdev
);
4863 rocker_free_tbls(rocker
);
4864 rocker_write32(rocker
, CONTROL
, ROCKER_CONTROL_RESET
);
4865 rocker_remove_ports(rocker
);
4866 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_EVENT
), rocker
);
4867 free_irq(rocker_msix_vector(rocker
, ROCKER_MSIX_VEC_CMD
), rocker
);
4868 rocker_dma_rings_fini(rocker
);
4869 rocker_msix_fini(rocker
);
4870 iounmap(rocker
->hw_addr
);
4871 pci_release_regions(rocker
->pdev
);
4872 pci_disable_device(rocker
->pdev
);
4876 static struct pci_driver rocker_pci_driver
= {
4877 .name
= rocker_driver_name
,
4878 .id_table
= rocker_pci_id_table
,
4879 .probe
= rocker_probe
,
4880 .remove
= rocker_remove
,
4883 /************************************
4884 * Net device notifier event handler
4885 ************************************/
4887 static bool rocker_port_dev_check(struct net_device
*dev
)
4889 return dev
->netdev_ops
== &rocker_port_netdev_ops
;
4892 static int rocker_port_bridge_join(struct rocker_port
*rocker_port
,
4893 struct net_device
*bridge
)
4897 rocker_port_internal_vlan_id_put(rocker_port
,
4898 rocker_port
->dev
->ifindex
);
4900 rocker_port
->bridge_dev
= bridge
;
4902 /* Use bridge internal VLAN ID for untagged pkts */
4903 err
= rocker_port_vlan(rocker_port
, ROCKER_OP_FLAG_REMOVE
, 0);
4906 rocker_port
->internal_vlan_id
=
4907 rocker_port_internal_vlan_id_get(rocker_port
,
4909 return rocker_port_vlan(rocker_port
, 0, 0);
4912 static int rocker_port_bridge_leave(struct rocker_port
*rocker_port
)
4916 rocker_port_internal_vlan_id_put(rocker_port
,
4917 rocker_port
->bridge_dev
->ifindex
);
4919 rocker_port
->bridge_dev
= NULL
;
4921 /* Use port internal VLAN ID for untagged pkts */
4922 err
= rocker_port_vlan(rocker_port
, ROCKER_OP_FLAG_REMOVE
, 0);
4925 rocker_port
->internal_vlan_id
=
4926 rocker_port_internal_vlan_id_get(rocker_port
,
4927 rocker_port
->dev
->ifindex
);
4928 err
= rocker_port_vlan(rocker_port
, 0, 0);
4932 if (rocker_port
->dev
->flags
& IFF_UP
)
4933 err
= rocker_port_fwd_enable(rocker_port
);
4938 static int rocker_port_master_changed(struct net_device
*dev
)
4940 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4941 struct net_device
*master
= netdev_master_upper_dev_get(dev
);
4944 /* There are currently three cases handled here:
4945 * 1. Joining a bridge
4946 * 2. Leaving a previously joined bridge
4947 * 3. Other, e.g. being added to or removed from a bond or openvswitch,
4948 * in which case nothing is done
4950 if (master
&& master
->rtnl_link_ops
&&
4951 !strcmp(master
->rtnl_link_ops
->kind
, "bridge"))
4952 err
= rocker_port_bridge_join(rocker_port
, master
);
4953 else if (rocker_port_is_bridged(rocker_port
))
4954 err
= rocker_port_bridge_leave(rocker_port
);
4959 static int rocker_netdevice_event(struct notifier_block
*unused
,
4960 unsigned long event
, void *ptr
)
4962 struct net_device
*dev
;
4966 case NETDEV_CHANGEUPPER
:
4967 dev
= netdev_notifier_info_to_dev(ptr
);
4968 if (!rocker_port_dev_check(dev
))
4970 err
= rocker_port_master_changed(dev
);
4973 "failed to reflect master change (err %d)\n",
4981 static struct notifier_block rocker_netdevice_nb __read_mostly
= {
4982 .notifier_call
= rocker_netdevice_event
,
4985 /************************************
4986 * Net event notifier event handler
4987 ************************************/
4989 static int rocker_neigh_update(struct net_device
*dev
, struct neighbour
*n
)
4991 struct rocker_port
*rocker_port
= netdev_priv(dev
);
4992 int flags
= (n
->nud_state
& NUD_VALID
) ? 0 : ROCKER_OP_FLAG_REMOVE
;
4993 __be32 ip_addr
= *(__be32
*)n
->primary_key
;
4995 return rocker_port_ipv4_neigh(rocker_port
, flags
, ip_addr
, n
->ha
);
4998 static int rocker_netevent_event(struct notifier_block
*unused
,
4999 unsigned long event
, void *ptr
)
5001 struct net_device
*dev
;
5002 struct neighbour
*n
= ptr
;
5006 case NETEVENT_NEIGH_UPDATE
:
5007 if (n
->tbl
!= &arp_tbl
)
5010 if (!rocker_port_dev_check(dev
))
5012 err
= rocker_neigh_update(dev
, n
);
5015 "failed to handle neigh update (err %d)\n",
5023 static struct notifier_block rocker_netevent_nb __read_mostly
= {
5024 .notifier_call
= rocker_netevent_event
,
5027 /***********************
5028 * Module init and exit
5029 ***********************/
5031 static int __init
rocker_module_init(void)
5035 register_netdevice_notifier(&rocker_netdevice_nb
);
5036 register_netevent_notifier(&rocker_netevent_nb
);
5037 err
= pci_register_driver(&rocker_pci_driver
);
5039 goto err_pci_register_driver
;
5042 err_pci_register_driver
:
5043 unregister_netdevice_notifier(&rocker_netevent_nb
);
5044 unregister_netdevice_notifier(&rocker_netdevice_nb
);
5048 static void __exit
rocker_module_exit(void)
5050 unregister_netevent_notifier(&rocker_netevent_nb
);
5051 unregister_netdevice_notifier(&rocker_netdevice_nb
);
5052 pci_unregister_driver(&rocker_pci_driver
);
5055 module_init(rocker_module_init
);
5056 module_exit(rocker_module_exit
);
5058 MODULE_LICENSE("GPL v2");
5059 MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
5060 MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
5061 MODULE_DESCRIPTION("Rocker switch device driver");
5062 MODULE_DEVICE_TABLE(pci
, rocker_pci_id_table
);