1 /* QLogic qede NIC Driver
2 * Copyright (c) 2015 QLogic Corporation
4 * This software is available under the terms of the GNU General Public License
5 * (GPL) Version 2, available from the file COPYING in the main directory of
9 #include <linux/module.h>
10 #include <linux/pci.h>
11 #include <linux/version.h>
12 #include <linux/device.h>
13 #include <linux/netdevice.h>
14 #include <linux/etherdevice.h>
15 #include <linux/skbuff.h>
16 #include <linux/errno.h>
17 #include <linux/list.h>
18 #include <linux/string.h>
19 #include <linux/dma-mapping.h>
20 #include <linux/interrupt.h>
21 #include <asm/byteorder.h>
22 #include <asm/param.h>
24 #include <linux/netdev_features.h>
25 #include <linux/udp.h>
26 #include <linux/tcp.h>
27 #ifdef CONFIG_QEDE_VXLAN
28 #include <net/vxlan.h>
30 #ifdef CONFIG_QEDE_GENEVE
31 #include <net/geneve.h>
36 #include <linux/if_ether.h>
37 #include <linux/if_vlan.h>
38 #include <linux/pkt_sched.h>
39 #include <linux/ethtool.h>
41 #include <linux/random.h>
42 #include <net/ip6_checksum.h>
43 #include <linux/bitops.h>
47 static char version
[] =
48 "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION
"\n";
50 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver");
51 MODULE_LICENSE("GPL");
52 MODULE_VERSION(DRV_MODULE_VERSION
);
55 module_param(debug
, uint
, 0);
56 MODULE_PARM_DESC(debug
, " Default debug msglevel");
58 static const struct qed_eth_ops
*qed_ops
;
60 #define CHIP_NUM_57980S_40 0x1634
61 #define CHIP_NUM_57980S_10 0x1666
62 #define CHIP_NUM_57980S_MF 0x1636
63 #define CHIP_NUM_57980S_100 0x1644
64 #define CHIP_NUM_57980S_50 0x1654
65 #define CHIP_NUM_57980S_25 0x1656
67 #ifndef PCI_DEVICE_ID_NX2_57980E
68 #define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40
69 #define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10
70 #define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF
71 #define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100
72 #define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50
73 #define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25
76 static const struct pci_device_id qede_pci_tbl
[] = {
77 { PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_40
), 0 },
78 { PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_10
), 0 },
79 { PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_MF
), 0 },
80 { PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_100
), 0 },
81 { PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_50
), 0 },
82 { PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_25
), 0 },
86 MODULE_DEVICE_TABLE(pci
, qede_pci_tbl
);
88 static int qede_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
);
90 #define TX_TIMEOUT (5 * HZ)
92 static void qede_remove(struct pci_dev
*pdev
);
93 static int qede_alloc_rx_buffer(struct qede_dev
*edev
,
94 struct qede_rx_queue
*rxq
);
95 static void qede_link_update(void *dev
, struct qed_link_output
*link
);
97 static struct pci_driver qede_pci_driver
= {
99 .id_table
= qede_pci_tbl
,
101 .remove
= qede_remove
,
104 static struct qed_eth_cb_ops qede_ll_ops
= {
106 .link_update
= qede_link_update
,
110 static int qede_netdev_event(struct notifier_block
*this, unsigned long event
,
113 struct net_device
*ndev
= netdev_notifier_info_to_dev(ptr
);
114 struct ethtool_drvinfo drvinfo
;
115 struct qede_dev
*edev
;
117 /* Currently only support name change */
118 if (event
!= NETDEV_CHANGENAME
)
121 /* Check whether this is a qede device */
122 if (!ndev
|| !ndev
->ethtool_ops
|| !ndev
->ethtool_ops
->get_drvinfo
)
125 memset(&drvinfo
, 0, sizeof(drvinfo
));
126 ndev
->ethtool_ops
->get_drvinfo(ndev
, &drvinfo
);
127 if (strcmp(drvinfo
.driver
, "qede"))
129 edev
= netdev_priv(ndev
);
131 /* Notify qed of the name change */
132 if (!edev
->ops
|| !edev
->ops
->common
)
134 edev
->ops
->common
->set_id(edev
->cdev
, edev
->ndev
->name
,
141 static struct notifier_block qede_netdev_notifier
= {
142 .notifier_call
= qede_netdev_event
,
146 int __init
qede_init(void)
150 pr_notice("qede_init: %s\n", version
);
152 qed_ops
= qed_get_eth_ops();
154 pr_notice("Failed to get qed ethtool operations\n");
158 /* Must register notifier before pci ops, since we might miss
159 * interface rename after pci probe and netdev registeration.
161 ret
= register_netdevice_notifier(&qede_netdev_notifier
);
163 pr_notice("Failed to register netdevice_notifier\n");
168 ret
= pci_register_driver(&qede_pci_driver
);
170 pr_notice("Failed to register driver\n");
171 unregister_netdevice_notifier(&qede_netdev_notifier
);
179 static void __exit
qede_cleanup(void)
181 pr_notice("qede_cleanup called\n");
183 unregister_netdevice_notifier(&qede_netdev_notifier
);
184 pci_unregister_driver(&qede_pci_driver
);
188 module_init(qede_init
);
189 module_exit(qede_cleanup
);
191 /* -------------------------------------------------------------------------
193 * -------------------------------------------------------------------------
196 /* Unmap the data and free skb */
197 static int qede_free_tx_pkt(struct qede_dev
*edev
,
198 struct qede_tx_queue
*txq
,
201 u16 idx
= txq
->sw_tx_cons
& NUM_TX_BDS_MAX
;
202 struct sk_buff
*skb
= txq
->sw_tx_ring
[idx
].skb
;
203 struct eth_tx_1st_bd
*first_bd
;
204 struct eth_tx_bd
*tx_data_bd
;
205 int bds_consumed
= 0;
207 bool data_split
= txq
->sw_tx_ring
[idx
].flags
& QEDE_TSO_SPLIT_BD
;
208 int i
, split_bd_len
= 0;
210 if (unlikely(!skb
)) {
212 "skb is null for txq idx=%d txq->sw_tx_cons=%d txq->sw_tx_prod=%d\n",
213 idx
, txq
->sw_tx_cons
, txq
->sw_tx_prod
);
219 first_bd
= (struct eth_tx_1st_bd
*)qed_chain_consume(&txq
->tx_pbl
);
223 nbds
= first_bd
->data
.nbds
;
226 struct eth_tx_bd
*split
= (struct eth_tx_bd
*)
227 qed_chain_consume(&txq
->tx_pbl
);
228 split_bd_len
= BD_UNMAP_LEN(split
);
231 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(first_bd
),
232 BD_UNMAP_LEN(first_bd
) + split_bd_len
, DMA_TO_DEVICE
);
234 /* Unmap the data of the skb frags */
235 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++, bds_consumed
++) {
236 tx_data_bd
= (struct eth_tx_bd
*)
237 qed_chain_consume(&txq
->tx_pbl
);
238 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(tx_data_bd
),
239 BD_UNMAP_LEN(tx_data_bd
), DMA_TO_DEVICE
);
242 while (bds_consumed
++ < nbds
)
243 qed_chain_consume(&txq
->tx_pbl
);
246 dev_kfree_skb_any(skb
);
247 txq
->sw_tx_ring
[idx
].skb
= NULL
;
248 txq
->sw_tx_ring
[idx
].flags
= 0;
253 /* Unmap the data and free skb when mapping failed during start_xmit */
254 static void qede_free_failed_tx_pkt(struct qede_dev
*edev
,
255 struct qede_tx_queue
*txq
,
256 struct eth_tx_1st_bd
*first_bd
,
260 u16 idx
= txq
->sw_tx_prod
& NUM_TX_BDS_MAX
;
261 struct sk_buff
*skb
= txq
->sw_tx_ring
[idx
].skb
;
262 struct eth_tx_bd
*tx_data_bd
;
263 int i
, split_bd_len
= 0;
265 /* Return prod to its position before this skb was handled */
266 qed_chain_set_prod(&txq
->tx_pbl
,
267 le16_to_cpu(txq
->tx_db
.data
.bd_prod
),
270 first_bd
= (struct eth_tx_1st_bd
*)qed_chain_produce(&txq
->tx_pbl
);
273 struct eth_tx_bd
*split
= (struct eth_tx_bd
*)
274 qed_chain_produce(&txq
->tx_pbl
);
275 split_bd_len
= BD_UNMAP_LEN(split
);
279 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(first_bd
),
280 BD_UNMAP_LEN(first_bd
) + split_bd_len
, DMA_TO_DEVICE
);
282 /* Unmap the data of the skb frags */
283 for (i
= 0; i
< nbd
; i
++) {
284 tx_data_bd
= (struct eth_tx_bd
*)
285 qed_chain_produce(&txq
->tx_pbl
);
286 if (tx_data_bd
->nbytes
)
287 dma_unmap_page(&edev
->pdev
->dev
,
288 BD_UNMAP_ADDR(tx_data_bd
),
289 BD_UNMAP_LEN(tx_data_bd
), DMA_TO_DEVICE
);
292 /* Return again prod to its position before this skb was handled */
293 qed_chain_set_prod(&txq
->tx_pbl
,
294 le16_to_cpu(txq
->tx_db
.data
.bd_prod
),
298 dev_kfree_skb_any(skb
);
299 txq
->sw_tx_ring
[idx
].skb
= NULL
;
300 txq
->sw_tx_ring
[idx
].flags
= 0;
303 static u32
qede_xmit_type(struct qede_dev
*edev
,
307 u32 rc
= XMIT_L4_CSUM
;
310 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
)
313 l3_proto
= vlan_get_protocol(skb
);
314 if (l3_proto
== htons(ETH_P_IPV6
) &&
315 (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_IPV6
))
324 static void qede_set_params_for_ipv6_ext(struct sk_buff
*skb
,
325 struct eth_tx_2nd_bd
*second_bd
,
326 struct eth_tx_3rd_bd
*third_bd
)
329 u16 bd2_bits1
= 0, bd2_bits2
= 0;
331 bd2_bits1
|= (1 << ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT
);
333 bd2_bits2
|= ((((u8
*)skb_transport_header(skb
) - skb
->data
) >> 1) &
334 ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK
)
335 << ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT
;
337 bd2_bits1
|= (ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH
<<
338 ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT
);
340 if (vlan_get_protocol(skb
) == htons(ETH_P_IPV6
))
341 l4_proto
= ipv6_hdr(skb
)->nexthdr
;
343 l4_proto
= ip_hdr(skb
)->protocol
;
345 if (l4_proto
== IPPROTO_UDP
)
346 bd2_bits1
|= 1 << ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT
;
349 third_bd
->data
.bitfields
|=
350 cpu_to_le16(((tcp_hdrlen(skb
) / 4) &
351 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK
) <<
352 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT
);
354 second_bd
->data
.bitfields1
= cpu_to_le16(bd2_bits1
);
355 second_bd
->data
.bitfields2
= cpu_to_le16(bd2_bits2
);
358 static int map_frag_to_bd(struct qede_dev
*edev
,
360 struct eth_tx_bd
*bd
)
364 /* Map skb non-linear frag data for DMA */
365 mapping
= skb_frag_dma_map(&edev
->pdev
->dev
, frag
, 0,
368 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
369 DP_NOTICE(edev
, "Unable to map frag - dropping packet\n");
373 /* Setup the data pointer of the frag data */
374 BD_SET_UNMAP_ADDR_LEN(bd
, mapping
, skb_frag_size(frag
));
379 /* +2 for 1st BD for headers and 2nd BD for headlen (if required) */
380 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
381 static bool qede_pkt_req_lin(struct qede_dev
*edev
, struct sk_buff
*skb
,
384 int allowed_frags
= ETH_TX_MAX_BDS_PER_NON_LSO_PACKET
- 1;
386 if (xmit_type
& XMIT_LSO
) {
389 hlen
= skb_transport_header(skb
) +
390 tcp_hdrlen(skb
) - skb
->data
;
392 /* linear payload would require its own BD */
393 if (skb_headlen(skb
) > hlen
)
397 return (skb_shinfo(skb
)->nr_frags
> allowed_frags
);
401 /* Main transmit function */
403 netdev_tx_t
qede_start_xmit(struct sk_buff
*skb
,
404 struct net_device
*ndev
)
406 struct qede_dev
*edev
= netdev_priv(ndev
);
407 struct netdev_queue
*netdev_txq
;
408 struct qede_tx_queue
*txq
;
409 struct eth_tx_1st_bd
*first_bd
;
410 struct eth_tx_2nd_bd
*second_bd
= NULL
;
411 struct eth_tx_3rd_bd
*third_bd
= NULL
;
412 struct eth_tx_bd
*tx_data_bd
= NULL
;
416 int rc
, frag_idx
= 0, ipv6_ext
= 0;
422 /* Get tx-queue context and netdev index */
423 txq_index
= skb_get_queue_mapping(skb
);
424 WARN_ON(txq_index
>= QEDE_TSS_CNT(edev
));
425 txq
= QEDE_TX_QUEUE(edev
, txq_index
);
426 netdev_txq
= netdev_get_tx_queue(ndev
, txq_index
);
428 WARN_ON(qed_chain_get_elem_left(&txq
->tx_pbl
) <
429 (MAX_SKB_FRAGS
+ 1));
431 xmit_type
= qede_xmit_type(edev
, skb
, &ipv6_ext
);
433 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
434 if (qede_pkt_req_lin(edev
, skb
, xmit_type
)) {
435 if (skb_linearize(skb
)) {
437 "SKB linearization failed - silently dropping this SKB\n");
438 dev_kfree_skb_any(skb
);
444 /* Fill the entry in the SW ring and the BDs in the FW ring */
445 idx
= txq
->sw_tx_prod
& NUM_TX_BDS_MAX
;
446 txq
->sw_tx_ring
[idx
].skb
= skb
;
447 first_bd
= (struct eth_tx_1st_bd
*)
448 qed_chain_produce(&txq
->tx_pbl
);
449 memset(first_bd
, 0, sizeof(*first_bd
));
450 first_bd
->data
.bd_flags
.bitfields
=
451 1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT
;
453 /* Map skb linear data for DMA and set in the first BD */
454 mapping
= dma_map_single(&edev
->pdev
->dev
, skb
->data
,
455 skb_headlen(skb
), DMA_TO_DEVICE
);
456 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
457 DP_NOTICE(edev
, "SKB mapping failed\n");
458 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, 0, false);
462 BD_SET_UNMAP_ADDR_LEN(first_bd
, mapping
, skb_headlen(skb
));
464 /* In case there is IPv6 with extension headers or LSO we need 2nd and
467 if (unlikely((xmit_type
& XMIT_LSO
) | ipv6_ext
)) {
468 second_bd
= (struct eth_tx_2nd_bd
*)
469 qed_chain_produce(&txq
->tx_pbl
);
470 memset(second_bd
, 0, sizeof(*second_bd
));
473 third_bd
= (struct eth_tx_3rd_bd
*)
474 qed_chain_produce(&txq
->tx_pbl
);
475 memset(third_bd
, 0, sizeof(*third_bd
));
478 /* We need to fill in additional data in second_bd... */
479 tx_data_bd
= (struct eth_tx_bd
*)second_bd
;
482 if (skb_vlan_tag_present(skb
)) {
483 first_bd
->data
.vlan
= cpu_to_le16(skb_vlan_tag_get(skb
));
484 first_bd
->data
.bd_flags
.bitfields
|=
485 1 << ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT
;
488 /* Fill the parsing flags & params according to the requested offload */
489 if (xmit_type
& XMIT_L4_CSUM
) {
490 u16 temp
= 1 << ETH_TX_DATA_1ST_BD_TUNN_CFG_OVERRIDE_SHIFT
;
492 /* We don't re-calculate IP checksum as it is already done by
495 first_bd
->data
.bd_flags
.bitfields
|=
496 1 << ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT
;
498 first_bd
->data
.bitfields
|= cpu_to_le16(temp
);
500 /* If the packet is IPv6 with extension header, indicate that
501 * to FW and pass few params, since the device cracker doesn't
502 * support parsing IPv6 with extension header/s.
504 if (unlikely(ipv6_ext
))
505 qede_set_params_for_ipv6_ext(skb
, second_bd
, third_bd
);
508 if (xmit_type
& XMIT_LSO
) {
509 first_bd
->data
.bd_flags
.bitfields
|=
510 (1 << ETH_TX_1ST_BD_FLAGS_LSO_SHIFT
);
511 third_bd
->data
.lso_mss
=
512 cpu_to_le16(skb_shinfo(skb
)->gso_size
);
514 first_bd
->data
.bd_flags
.bitfields
|=
515 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT
;
516 hlen
= skb_transport_header(skb
) +
517 tcp_hdrlen(skb
) - skb
->data
;
519 /* @@@TBD - if will not be removed need to check */
520 third_bd
->data
.bitfields
|=
521 cpu_to_le16((1 << ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT
));
523 /* Make life easier for FW guys who can't deal with header and
524 * data on same BD. If we need to split, use the second bd...
526 if (unlikely(skb_headlen(skb
) > hlen
)) {
527 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
528 "TSO split header size is %d (%x:%x)\n",
529 first_bd
->nbytes
, first_bd
->addr
.hi
,
532 mapping
= HILO_U64(le32_to_cpu(first_bd
->addr
.hi
),
533 le32_to_cpu(first_bd
->addr
.lo
)) +
536 BD_SET_UNMAP_ADDR_LEN(tx_data_bd
, mapping
,
537 le16_to_cpu(first_bd
->nbytes
) -
540 /* this marks the BD as one that has no
543 txq
->sw_tx_ring
[idx
].flags
|= QEDE_TSO_SPLIT_BD
;
545 first_bd
->nbytes
= cpu_to_le16(hlen
);
547 tx_data_bd
= (struct eth_tx_bd
*)third_bd
;
552 /* Handle fragmented skb */
553 /* special handle for frags inside 2nd and 3rd bds.. */
554 while (tx_data_bd
&& frag_idx
< skb_shinfo(skb
)->nr_frags
) {
555 rc
= map_frag_to_bd(edev
,
556 &skb_shinfo(skb
)->frags
[frag_idx
],
559 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, nbd
,
564 if (tx_data_bd
== (struct eth_tx_bd
*)second_bd
)
565 tx_data_bd
= (struct eth_tx_bd
*)third_bd
;
572 /* map last frags into 4th, 5th .... */
573 for (; frag_idx
< skb_shinfo(skb
)->nr_frags
; frag_idx
++, nbd
++) {
574 tx_data_bd
= (struct eth_tx_bd
*)
575 qed_chain_produce(&txq
->tx_pbl
);
577 memset(tx_data_bd
, 0, sizeof(*tx_data_bd
));
579 rc
= map_frag_to_bd(edev
,
580 &skb_shinfo(skb
)->frags
[frag_idx
],
583 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, nbd
,
589 /* update the first BD with the actual num BDs */
590 first_bd
->data
.nbds
= nbd
;
592 netdev_tx_sent_queue(netdev_txq
, skb
->len
);
594 skb_tx_timestamp(skb
);
596 /* Advance packet producer only before sending the packet since mapping
601 /* 'next page' entries are counted in the producer value */
602 txq
->tx_db
.data
.bd_prod
=
603 cpu_to_le16(qed_chain_get_prod_idx(&txq
->tx_pbl
));
605 /* wmb makes sure that the BDs data is updated before updating the
606 * producer, otherwise FW may read old data from the BDs.
610 writel(txq
->tx_db
.raw
, txq
->doorbell_addr
);
612 /* mmiowb is needed to synchronize doorbell writes from more than one
613 * processor. It guarantees that the write arrives to the device before
614 * the queue lock is released and another start_xmit is called (possibly
615 * on another CPU). Without this barrier, the next doorbell can bypass
616 * this doorbell. This is applicable to IA64/Altix systems.
620 if (unlikely(qed_chain_get_elem_left(&txq
->tx_pbl
)
621 < (MAX_SKB_FRAGS
+ 1))) {
622 netif_tx_stop_queue(netdev_txq
);
623 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
624 "Stop queue was called\n");
625 /* paired memory barrier is in qede_tx_int(), we have to keep
626 * ordering of set_bit() in netif_tx_stop_queue() and read of
631 if (qed_chain_get_elem_left(&txq
->tx_pbl
)
632 >= (MAX_SKB_FRAGS
+ 1) &&
633 (edev
->state
== QEDE_STATE_OPEN
)) {
634 netif_tx_wake_queue(netdev_txq
);
635 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
636 "Wake queue was called\n");
643 static int qede_txq_has_work(struct qede_tx_queue
*txq
)
647 /* Tell compiler that consumer and producer can change */
649 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
650 if (qed_chain_get_cons_idx(&txq
->tx_pbl
) == hw_bd_cons
+ 1)
653 return hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
);
656 static int qede_tx_int(struct qede_dev
*edev
,
657 struct qede_tx_queue
*txq
)
659 struct netdev_queue
*netdev_txq
;
661 unsigned int pkts_compl
= 0, bytes_compl
= 0;
664 netdev_txq
= netdev_get_tx_queue(edev
->ndev
, txq
->index
);
666 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
669 while (hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
)) {
672 rc
= qede_free_tx_pkt(edev
, txq
, &len
);
674 DP_NOTICE(edev
, "hw_bd_cons = %d, chain_cons=%d\n",
676 qed_chain_get_cons_idx(&txq
->tx_pbl
));
685 netdev_tx_completed_queue(netdev_txq
, pkts_compl
, bytes_compl
);
687 /* Need to make the tx_bd_cons update visible to start_xmit()
688 * before checking for netif_tx_queue_stopped(). Without the
689 * memory barrier, there is a small possibility that
690 * start_xmit() will miss it and cause the queue to be stopped
692 * On the other hand we need an rmb() here to ensure the proper
693 * ordering of bit testing in the following
694 * netif_tx_queue_stopped(txq) call.
698 if (unlikely(netif_tx_queue_stopped(netdev_txq
))) {
699 /* Taking tx_lock is needed to prevent reenabling the queue
700 * while it's empty. This could have happen if rx_action() gets
701 * suspended in qede_tx_int() after the condition before
702 * netif_tx_wake_queue(), while tx_action (qede_start_xmit()):
704 * stops the queue->sees fresh tx_bd_cons->releases the queue->
705 * sends some packets consuming the whole queue again->
709 __netif_tx_lock(netdev_txq
, smp_processor_id());
711 if ((netif_tx_queue_stopped(netdev_txq
)) &&
712 (edev
->state
== QEDE_STATE_OPEN
) &&
713 (qed_chain_get_elem_left(&txq
->tx_pbl
)
714 >= (MAX_SKB_FRAGS
+ 1))) {
715 netif_tx_wake_queue(netdev_txq
);
716 DP_VERBOSE(edev
, NETIF_MSG_TX_DONE
,
717 "Wake queue was called\n");
720 __netif_tx_unlock(netdev_txq
);
726 static bool qede_has_rx_work(struct qede_rx_queue
*rxq
)
728 u16 hw_comp_cons
, sw_comp_cons
;
730 /* Tell compiler that status block fields can change */
733 hw_comp_cons
= le16_to_cpu(*rxq
->hw_cons_ptr
);
734 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
736 return hw_comp_cons
!= sw_comp_cons
;
739 static bool qede_has_tx_work(struct qede_fastpath
*fp
)
743 for (tc
= 0; tc
< fp
->edev
->num_tc
; tc
++)
744 if (qede_txq_has_work(&fp
->txqs
[tc
]))
749 /* This function reuses the buffer(from an offset) from
750 * consumer index to producer index in the bd ring
752 static inline void qede_reuse_page(struct qede_dev
*edev
,
753 struct qede_rx_queue
*rxq
,
754 struct sw_rx_data
*curr_cons
)
756 struct eth_rx_bd
*rx_bd_prod
= qed_chain_produce(&rxq
->rx_bd_ring
);
757 struct sw_rx_data
*curr_prod
;
758 dma_addr_t new_mapping
;
760 curr_prod
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
761 *curr_prod
= *curr_cons
;
763 new_mapping
= curr_prod
->mapping
+ curr_prod
->page_offset
;
765 rx_bd_prod
->addr
.hi
= cpu_to_le32(upper_32_bits(new_mapping
));
766 rx_bd_prod
->addr
.lo
= cpu_to_le32(lower_32_bits(new_mapping
));
769 curr_cons
->data
= NULL
;
772 static inline int qede_realloc_rx_buffer(struct qede_dev
*edev
,
773 struct qede_rx_queue
*rxq
,
774 struct sw_rx_data
*curr_cons
)
776 /* Move to the next segment in the page */
777 curr_cons
->page_offset
+= rxq
->rx_buf_seg_size
;
779 if (curr_cons
->page_offset
== PAGE_SIZE
) {
780 if (unlikely(qede_alloc_rx_buffer(edev
, rxq
)))
783 dma_unmap_page(&edev
->pdev
->dev
, curr_cons
->mapping
,
784 PAGE_SIZE
, DMA_FROM_DEVICE
);
786 /* Increment refcount of the page as we don't want
787 * network stack to take the ownership of the page
788 * which can be recycled multiple times by the driver.
790 atomic_inc(&curr_cons
->data
->_count
);
791 qede_reuse_page(edev
, rxq
, curr_cons
);
797 static inline void qede_update_rx_prod(struct qede_dev
*edev
,
798 struct qede_rx_queue
*rxq
)
800 u16 bd_prod
= qed_chain_get_prod_idx(&rxq
->rx_bd_ring
);
801 u16 cqe_prod
= qed_chain_get_prod_idx(&rxq
->rx_comp_ring
);
802 struct eth_rx_prod_data rx_prods
= {0};
804 /* Update producers */
805 rx_prods
.bd_prod
= cpu_to_le16(bd_prod
);
806 rx_prods
.cqe_prod
= cpu_to_le16(cqe_prod
);
808 /* Make sure that the BD and SGE data is updated before updating the
809 * producers since FW might read the BD/SGE right after the producer
814 internal_ram_wr(rxq
->hw_rxq_prod_addr
, sizeof(rx_prods
),
817 /* mmiowb is needed to synchronize doorbell writes from more than one
818 * processor. It guarantees that the write arrives to the device before
819 * the napi lock is released and another qede_poll is called (possibly
820 * on another CPU). Without this barrier, the next doorbell can bypass
821 * this doorbell. This is applicable to IA64/Altix systems.
826 static u32
qede_get_rxhash(struct qede_dev
*edev
,
829 enum pkt_hash_types
*rxhash_type
)
831 enum rss_hash_type htype
;
833 htype
= GET_FIELD(bitfields
, ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE
);
835 if ((edev
->ndev
->features
& NETIF_F_RXHASH
) && htype
) {
836 *rxhash_type
= ((htype
== RSS_HASH_TYPE_IPV4
) ||
837 (htype
== RSS_HASH_TYPE_IPV6
)) ?
838 PKT_HASH_TYPE_L3
: PKT_HASH_TYPE_L4
;
839 return le32_to_cpu(rss_hash
);
841 *rxhash_type
= PKT_HASH_TYPE_NONE
;
845 static void qede_set_skb_csum(struct sk_buff
*skb
, u8 csum_flag
)
847 skb_checksum_none_assert(skb
);
849 if (csum_flag
& QEDE_CSUM_UNNECESSARY
)
850 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
853 static inline void qede_skb_receive(struct qede_dev
*edev
,
854 struct qede_fastpath
*fp
,
859 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
),
862 napi_gro_receive(&fp
->napi
, skb
);
865 static void qede_set_gro_params(struct qede_dev
*edev
,
867 struct eth_fast_path_rx_tpa_start_cqe
*cqe
)
869 u16 parsing_flags
= le16_to_cpu(cqe
->pars_flags
.flags
);
871 if (((parsing_flags
>> PARSING_AND_ERR_FLAGS_L3TYPE_SHIFT
) &
872 PARSING_AND_ERR_FLAGS_L3TYPE_MASK
) == 2)
873 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV6
;
875 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV4
;
877 skb_shinfo(skb
)->gso_size
= __le16_to_cpu(cqe
->len_on_first_bd
) -
881 static int qede_fill_frag_skb(struct qede_dev
*edev
,
882 struct qede_rx_queue
*rxq
,
886 struct sw_rx_data
*current_bd
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
&
888 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[tpa_agg_index
];
889 struct sk_buff
*skb
= tpa_info
->skb
;
891 if (unlikely(tpa_info
->agg_state
!= QEDE_AGG_STATE_START
))
894 /* Add one frag and update the appropriate fields in the skb */
895 skb_fill_page_desc(skb
, tpa_info
->frag_id
++,
896 current_bd
->data
, current_bd
->page_offset
,
899 if (unlikely(qede_realloc_rx_buffer(edev
, rxq
, current_bd
))) {
900 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
904 qed_chain_consume(&rxq
->rx_bd_ring
);
907 skb
->data_len
+= len_on_bd
;
908 skb
->truesize
+= rxq
->rx_buf_seg_size
;
909 skb
->len
+= len_on_bd
;
917 static void qede_tpa_start(struct qede_dev
*edev
,
918 struct qede_rx_queue
*rxq
,
919 struct eth_fast_path_rx_tpa_start_cqe
*cqe
)
921 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[cqe
->tpa_agg_index
];
922 struct eth_rx_bd
*rx_bd_cons
= qed_chain_consume(&rxq
->rx_bd_ring
);
923 struct eth_rx_bd
*rx_bd_prod
= qed_chain_produce(&rxq
->rx_bd_ring
);
924 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
925 dma_addr_t mapping
= tpa_info
->replace_buf_mapping
;
926 struct sw_rx_data
*sw_rx_data_cons
;
927 struct sw_rx_data
*sw_rx_data_prod
;
928 enum pkt_hash_types rxhash_type
;
931 sw_rx_data_cons
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
];
932 sw_rx_data_prod
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
934 /* Use pre-allocated replacement buffer - we can't release the agg.
935 * start until its over and we don't want to risk allocation failing
936 * here, so re-allocate when aggregation will be over.
938 dma_unmap_addr_set(sw_rx_data_prod
, mapping
,
939 dma_unmap_addr(replace_buf
, mapping
));
941 sw_rx_data_prod
->data
= replace_buf
->data
;
942 rx_bd_prod
->addr
.hi
= cpu_to_le32(upper_32_bits(mapping
));
943 rx_bd_prod
->addr
.lo
= cpu_to_le32(lower_32_bits(mapping
));
944 sw_rx_data_prod
->page_offset
= replace_buf
->page_offset
;
948 /* move partial skb from cons to pool (don't unmap yet)
949 * save mapping, incase we drop the packet later on.
951 tpa_info
->start_buf
= *sw_rx_data_cons
;
952 mapping
= HILO_U64(le32_to_cpu(rx_bd_cons
->addr
.hi
),
953 le32_to_cpu(rx_bd_cons
->addr
.lo
));
955 tpa_info
->start_buf_mapping
= mapping
;
958 /* set tpa state to start only if we are able to allocate skb
959 * for this aggregation, otherwise mark as error and aggregation will
962 tpa_info
->skb
= netdev_alloc_skb(edev
->ndev
,
963 le16_to_cpu(cqe
->len_on_first_bd
));
964 if (unlikely(!tpa_info
->skb
)) {
965 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
969 skb_put(tpa_info
->skb
, le16_to_cpu(cqe
->len_on_first_bd
));
970 memcpy(&tpa_info
->start_cqe
, cqe
, sizeof(tpa_info
->start_cqe
));
972 /* Start filling in the aggregation info */
973 tpa_info
->frag_id
= 0;
974 tpa_info
->agg_state
= QEDE_AGG_STATE_START
;
976 rxhash
= qede_get_rxhash(edev
, cqe
->bitfields
,
977 cqe
->rss_hash
, &rxhash_type
);
978 skb_set_hash(tpa_info
->skb
, rxhash
, rxhash_type
);
979 if ((le16_to_cpu(cqe
->pars_flags
.flags
) >>
980 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT
) &
981 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK
)
982 tpa_info
->vlan_tag
= le16_to_cpu(cqe
->vlan_tag
);
984 tpa_info
->vlan_tag
= 0;
986 /* This is needed in order to enable forwarding support */
987 qede_set_gro_params(edev
, tpa_info
->skb
, cqe
);
989 if (likely(cqe
->ext_bd_len_list
[0]))
990 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
991 le16_to_cpu(cqe
->ext_bd_len_list
[0]));
993 if (unlikely(cqe
->ext_bd_len_list
[1])) {
995 "Unlikely - got a TPA aggregation with more than one ext_bd_len_list entry in the TPA start\n");
996 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
1001 static void qede_gro_ip_csum(struct sk_buff
*skb
)
1003 const struct iphdr
*iph
= ip_hdr(skb
);
1006 skb_set_network_header(skb
, 0);
1007 skb_set_transport_header(skb
, sizeof(struct iphdr
));
1010 th
->check
= ~tcp_v4_check(skb
->len
- skb_transport_offset(skb
),
1011 iph
->saddr
, iph
->daddr
, 0);
1013 tcp_gro_complete(skb
);
1016 static void qede_gro_ipv6_csum(struct sk_buff
*skb
)
1018 struct ipv6hdr
*iph
= ipv6_hdr(skb
);
1021 skb_set_network_header(skb
, 0);
1022 skb_set_transport_header(skb
, sizeof(struct ipv6hdr
));
1025 th
->check
= ~tcp_v6_check(skb
->len
- skb_transport_offset(skb
),
1026 &iph
->saddr
, &iph
->daddr
, 0);
1027 tcp_gro_complete(skb
);
1031 static void qede_gro_receive(struct qede_dev
*edev
,
1032 struct qede_fastpath
*fp
,
1033 struct sk_buff
*skb
,
1037 if (skb_shinfo(skb
)->gso_size
) {
1038 switch (skb
->protocol
) {
1039 case htons(ETH_P_IP
):
1040 qede_gro_ip_csum(skb
);
1042 case htons(ETH_P_IPV6
):
1043 qede_gro_ipv6_csum(skb
);
1047 "Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n",
1048 ntohs(skb
->protocol
));
1052 skb_record_rx_queue(skb
, fp
->rss_id
);
1053 qede_skb_receive(edev
, fp
, skb
, vlan_tag
);
1056 static inline void qede_tpa_cont(struct qede_dev
*edev
,
1057 struct qede_rx_queue
*rxq
,
1058 struct eth_fast_path_rx_tpa_cont_cqe
*cqe
)
1062 for (i
= 0; cqe
->len_list
[i
]; i
++)
1063 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1064 le16_to_cpu(cqe
->len_list
[i
]));
1066 if (unlikely(i
> 1))
1068 "Strange - TPA cont with more than a single len_list entry\n");
1071 static void qede_tpa_end(struct qede_dev
*edev
,
1072 struct qede_fastpath
*fp
,
1073 struct eth_fast_path_rx_tpa_end_cqe
*cqe
)
1075 struct qede_rx_queue
*rxq
= fp
->rxq
;
1076 struct qede_agg_info
*tpa_info
;
1077 struct sk_buff
*skb
;
1080 tpa_info
= &rxq
->tpa_info
[cqe
->tpa_agg_index
];
1081 skb
= tpa_info
->skb
;
1083 for (i
= 0; cqe
->len_list
[i
]; i
++)
1084 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1085 le16_to_cpu(cqe
->len_list
[i
]));
1086 if (unlikely(i
> 1))
1088 "Strange - TPA emd with more than a single len_list entry\n");
1090 if (unlikely(tpa_info
->agg_state
!= QEDE_AGG_STATE_START
))
1094 if (unlikely(cqe
->num_of_bds
!= tpa_info
->frag_id
+ 1))
1096 "Strange - TPA had %02x BDs, but SKB has only %d frags\n",
1097 cqe
->num_of_bds
, tpa_info
->frag_id
);
1098 if (unlikely(skb
->len
!= le16_to_cpu(cqe
->total_packet_len
)))
1100 "Strange - total packet len [cqe] is %4x but SKB has len %04x\n",
1101 le16_to_cpu(cqe
->total_packet_len
), skb
->len
);
1104 page_address(tpa_info
->start_buf
.data
) +
1105 tpa_info
->start_cqe
.placement_offset
+
1106 tpa_info
->start_buf
.page_offset
,
1107 le16_to_cpu(tpa_info
->start_cqe
.len_on_first_bd
));
1109 /* Recycle [mapped] start buffer for the next replacement */
1110 tpa_info
->replace_buf
= tpa_info
->start_buf
;
1111 tpa_info
->replace_buf_mapping
= tpa_info
->start_buf_mapping
;
1113 /* Finalize the SKB */
1114 skb
->protocol
= eth_type_trans(skb
, edev
->ndev
);
1115 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
1117 /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count
1118 * to skb_shinfo(skb)->gso_segs
1120 NAPI_GRO_CB(skb
)->count
= le16_to_cpu(cqe
->num_of_coalesced_segs
);
1122 qede_gro_receive(edev
, fp
, skb
, tpa_info
->vlan_tag
);
1124 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
1128 /* The BD starting the aggregation is still mapped; Re-use it for
1129 * future aggregations [as replacement buffer]
1131 memcpy(&tpa_info
->replace_buf
, &tpa_info
->start_buf
,
1132 sizeof(struct sw_rx_data
));
1133 tpa_info
->replace_buf_mapping
= tpa_info
->start_buf_mapping
;
1134 tpa_info
->start_buf
.data
= NULL
;
1135 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
1136 dev_kfree_skb_any(tpa_info
->skb
);
1137 tpa_info
->skb
= NULL
;
1140 static u8
qede_check_csum(u16 flag
)
1145 if ((PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK
<<
1146 PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT
) & flag
) {
1147 csum_flag
|= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK
<<
1148 PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT
;
1149 csum
= QEDE_CSUM_UNNECESSARY
;
1152 csum_flag
|= PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK
<<
1153 PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT
;
1155 if (csum_flag
& flag
)
1156 return QEDE_CSUM_ERROR
;
1161 static int qede_rx_int(struct qede_fastpath
*fp
, int budget
)
1163 struct qede_dev
*edev
= fp
->edev
;
1164 struct qede_rx_queue
*rxq
= fp
->rxq
;
1166 u16 hw_comp_cons
, sw_comp_cons
, sw_rx_index
, parse_flag
;
1170 hw_comp_cons
= le16_to_cpu(*rxq
->hw_cons_ptr
);
1171 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
1173 /* Memory barrier to prevent the CPU from doing speculative reads of CQE
1174 * / BD in the while-loop before reading hw_comp_cons. If the CQE is
1175 * read before it is written by FW, then FW writes CQE and SB, and then
1176 * the CPU reads the hw_comp_cons, it will use an old CQE.
1180 /* Loop to complete all indicated BDs */
1181 while (sw_comp_cons
!= hw_comp_cons
) {
1182 struct eth_fast_path_rx_reg_cqe
*fp_cqe
;
1183 enum pkt_hash_types rxhash_type
;
1184 enum eth_rx_cqe_type cqe_type
;
1185 struct sw_rx_data
*sw_rx_data
;
1186 union eth_rx_cqe
*cqe
;
1187 struct sk_buff
*skb
;
1193 /* Get the CQE from the completion ring */
1194 cqe
= (union eth_rx_cqe
*)
1195 qed_chain_consume(&rxq
->rx_comp_ring
);
1196 cqe_type
= cqe
->fast_path_regular
.type
;
1198 if (unlikely(cqe_type
== ETH_RX_CQE_TYPE_SLOW_PATH
)) {
1199 edev
->ops
->eth_cqe_completion(
1200 edev
->cdev
, fp
->rss_id
,
1201 (struct eth_slow_path_rx_cqe
*)cqe
);
1205 if (cqe_type
!= ETH_RX_CQE_TYPE_REGULAR
) {
1207 case ETH_RX_CQE_TYPE_TPA_START
:
1208 qede_tpa_start(edev
, rxq
,
1209 &cqe
->fast_path_tpa_start
);
1211 case ETH_RX_CQE_TYPE_TPA_CONT
:
1212 qede_tpa_cont(edev
, rxq
,
1213 &cqe
->fast_path_tpa_cont
);
1215 case ETH_RX_CQE_TYPE_TPA_END
:
1216 qede_tpa_end(edev
, fp
,
1217 &cqe
->fast_path_tpa_end
);
1224 /* Get the data from the SW ring */
1225 sw_rx_index
= rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
;
1226 sw_rx_data
= &rxq
->sw_rx_ring
[sw_rx_index
];
1227 data
= sw_rx_data
->data
;
1229 fp_cqe
= &cqe
->fast_path_regular
;
1230 len
= le16_to_cpu(fp_cqe
->len_on_first_bd
);
1231 pad
= fp_cqe
->placement_offset
;
1232 flags
= cqe
->fast_path_regular
.pars_flags
.flags
;
1234 /* If this is an error packet then drop it */
1235 parse_flag
= le16_to_cpu(flags
);
1237 csum_flag
= qede_check_csum(parse_flag
);
1238 if (unlikely(csum_flag
== QEDE_CSUM_ERROR
)) {
1240 "CQE in CONS = %u has error, flags = %x, dropping incoming packet\n",
1241 sw_comp_cons
, parse_flag
);
1242 rxq
->rx_hw_errors
++;
1243 qede_reuse_page(edev
, rxq
, sw_rx_data
);
1247 skb
= netdev_alloc_skb(edev
->ndev
, QEDE_RX_HDR_SIZE
);
1248 if (unlikely(!skb
)) {
1250 "Build_skb failed, dropping incoming packet\n");
1251 qede_reuse_page(edev
, rxq
, sw_rx_data
);
1252 rxq
->rx_alloc_errors
++;
1256 /* Copy data into SKB */
1257 if (len
+ pad
<= QEDE_RX_HDR_SIZE
) {
1258 memcpy(skb_put(skb
, len
),
1259 page_address(data
) + pad
+
1260 sw_rx_data
->page_offset
, len
);
1261 qede_reuse_page(edev
, rxq
, sw_rx_data
);
1263 struct skb_frag_struct
*frag
;
1264 unsigned int pull_len
;
1267 frag
= &skb_shinfo(skb
)->frags
[0];
1269 skb_add_rx_frag(skb
, skb_shinfo(skb
)->nr_frags
, data
,
1270 pad
+ sw_rx_data
->page_offset
,
1271 len
, rxq
->rx_buf_seg_size
);
1273 va
= skb_frag_address(frag
);
1274 pull_len
= eth_get_headlen(va
, QEDE_RX_HDR_SIZE
);
1276 /* Align the pull_len to optimize memcpy */
1277 memcpy(skb
->data
, va
, ALIGN(pull_len
, sizeof(long)));
1279 skb_frag_size_sub(frag
, pull_len
);
1280 frag
->page_offset
+= pull_len
;
1281 skb
->data_len
-= pull_len
;
1282 skb
->tail
+= pull_len
;
1284 if (unlikely(qede_realloc_rx_buffer(edev
, rxq
,
1286 DP_ERR(edev
, "Failed to allocate rx buffer\n");
1287 rxq
->rx_alloc_errors
++;
1292 if (fp_cqe
->bd_num
!= 1) {
1293 u16 pkt_len
= le16_to_cpu(fp_cqe
->pkt_len
);
1298 for (num_frags
= fp_cqe
->bd_num
- 1; num_frags
> 0;
1300 u16 cur_size
= pkt_len
> rxq
->rx_buf_size
?
1301 rxq
->rx_buf_size
: pkt_len
;
1303 WARN_ONCE(!cur_size
,
1304 "Still got %d BDs for mapping jumbo, but length became 0\n",
1307 if (unlikely(qede_alloc_rx_buffer(edev
, rxq
)))
1311 sw_rx_index
= rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
;
1312 sw_rx_data
= &rxq
->sw_rx_ring
[sw_rx_index
];
1313 qed_chain_consume(&rxq
->rx_bd_ring
);
1314 dma_unmap_page(&edev
->pdev
->dev
,
1315 sw_rx_data
->mapping
,
1316 PAGE_SIZE
, DMA_FROM_DEVICE
);
1318 skb_fill_page_desc(skb
,
1319 skb_shinfo(skb
)->nr_frags
++,
1320 sw_rx_data
->data
, 0,
1323 skb
->truesize
+= PAGE_SIZE
;
1324 skb
->data_len
+= cur_size
;
1325 skb
->len
+= cur_size
;
1326 pkt_len
-= cur_size
;
1331 "Mapped all BDs of jumbo, but still have %d bytes\n",
1335 skb
->protocol
= eth_type_trans(skb
, edev
->ndev
);
1337 rx_hash
= qede_get_rxhash(edev
, fp_cqe
->bitfields
,
1341 skb_set_hash(skb
, rx_hash
, rxhash_type
);
1343 qede_set_skb_csum(skb
, csum_flag
);
1345 skb_record_rx_queue(skb
, fp
->rss_id
);
1347 qede_skb_receive(edev
, fp
, skb
, le16_to_cpu(fp_cqe
->vlan_tag
));
1349 qed_chain_consume(&rxq
->rx_bd_ring
);
1355 next_cqe
: /* don't consume bd rx buffer */
1356 qed_chain_recycle_consumed(&rxq
->rx_comp_ring
);
1357 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
1358 /* CR TPA - revisit how to handle budget in TPA perhaps
1361 if (rx_pkt
== budget
)
1363 } /* repeat while sw_comp_cons != hw_comp_cons... */
1365 /* Update producers */
1366 qede_update_rx_prod(edev
, rxq
);
1371 static int qede_poll(struct napi_struct
*napi
, int budget
)
1374 struct qede_fastpath
*fp
= container_of(napi
, struct qede_fastpath
,
1376 struct qede_dev
*edev
= fp
->edev
;
1381 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
1382 if (qede_txq_has_work(&fp
->txqs
[tc
]))
1383 qede_tx_int(edev
, &fp
->txqs
[tc
]);
1385 if (qede_has_rx_work(fp
->rxq
)) {
1386 work_done
+= qede_rx_int(fp
, budget
- work_done
);
1388 /* must not complete if we consumed full budget */
1389 if (work_done
>= budget
)
1393 /* Fall out from the NAPI loop if needed */
1394 if (!(qede_has_rx_work(fp
->rxq
) || qede_has_tx_work(fp
))) {
1395 qed_sb_update_sb_idx(fp
->sb_info
);
1396 /* *_has_*_work() reads the status block,
1397 * thus we need to ensure that status block indices
1398 * have been actually read (qed_sb_update_sb_idx)
1399 * prior to this check (*_has_*_work) so that
1400 * we won't write the "newer" value of the status block
1401 * to HW (if there was a DMA right after
1402 * qede_has_rx_work and if there is no rmb, the memory
1403 * reading (qed_sb_update_sb_idx) may be postponed
1404 * to right before *_ack_sb). In this case there
1405 * will never be another interrupt until there is
1406 * another update of the status block, while there
1407 * is still unhandled work.
1411 if (!(qede_has_rx_work(fp
->rxq
) ||
1412 qede_has_tx_work(fp
))) {
1413 napi_complete(napi
);
1414 /* Update and reenable interrupts */
1415 qed_sb_ack(fp
->sb_info
, IGU_INT_ENABLE
,
1425 static irqreturn_t
qede_msix_fp_int(int irq
, void *fp_cookie
)
1427 struct qede_fastpath
*fp
= fp_cookie
;
1429 qed_sb_ack(fp
->sb_info
, IGU_INT_DISABLE
, 0 /*do not update*/);
1431 napi_schedule_irqoff(&fp
->napi
);
1435 /* -------------------------------------------------------------------------
1437 * -------------------------------------------------------------------------
1440 static int qede_open(struct net_device
*ndev
);
1441 static int qede_close(struct net_device
*ndev
);
1442 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
);
1443 static void qede_set_rx_mode(struct net_device
*ndev
);
1444 static void qede_config_rx_mode(struct net_device
*ndev
);
1446 static int qede_set_ucast_rx_mac(struct qede_dev
*edev
,
1447 enum qed_filter_xcast_params_type opcode
,
1448 unsigned char mac
[ETH_ALEN
])
1450 struct qed_filter_params filter_cmd
;
1452 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1453 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1454 filter_cmd
.filter
.ucast
.type
= opcode
;
1455 filter_cmd
.filter
.ucast
.mac_valid
= 1;
1456 ether_addr_copy(filter_cmd
.filter
.ucast
.mac
, mac
);
1458 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1461 static int qede_set_ucast_rx_vlan(struct qede_dev
*edev
,
1462 enum qed_filter_xcast_params_type opcode
,
1465 struct qed_filter_params filter_cmd
;
1467 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1468 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1469 filter_cmd
.filter
.ucast
.type
= opcode
;
1470 filter_cmd
.filter
.ucast
.vlan_valid
= 1;
1471 filter_cmd
.filter
.ucast
.vlan
= vid
;
1473 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1476 void qede_fill_by_demand_stats(struct qede_dev
*edev
)
1478 struct qed_eth_stats stats
;
1480 edev
->ops
->get_vport_stats(edev
->cdev
, &stats
);
1481 edev
->stats
.no_buff_discards
= stats
.no_buff_discards
;
1482 edev
->stats
.rx_ucast_bytes
= stats
.rx_ucast_bytes
;
1483 edev
->stats
.rx_mcast_bytes
= stats
.rx_mcast_bytes
;
1484 edev
->stats
.rx_bcast_bytes
= stats
.rx_bcast_bytes
;
1485 edev
->stats
.rx_ucast_pkts
= stats
.rx_ucast_pkts
;
1486 edev
->stats
.rx_mcast_pkts
= stats
.rx_mcast_pkts
;
1487 edev
->stats
.rx_bcast_pkts
= stats
.rx_bcast_pkts
;
1488 edev
->stats
.mftag_filter_discards
= stats
.mftag_filter_discards
;
1489 edev
->stats
.mac_filter_discards
= stats
.mac_filter_discards
;
1491 edev
->stats
.tx_ucast_bytes
= stats
.tx_ucast_bytes
;
1492 edev
->stats
.tx_mcast_bytes
= stats
.tx_mcast_bytes
;
1493 edev
->stats
.tx_bcast_bytes
= stats
.tx_bcast_bytes
;
1494 edev
->stats
.tx_ucast_pkts
= stats
.tx_ucast_pkts
;
1495 edev
->stats
.tx_mcast_pkts
= stats
.tx_mcast_pkts
;
1496 edev
->stats
.tx_bcast_pkts
= stats
.tx_bcast_pkts
;
1497 edev
->stats
.tx_err_drop_pkts
= stats
.tx_err_drop_pkts
;
1498 edev
->stats
.coalesced_pkts
= stats
.tpa_coalesced_pkts
;
1499 edev
->stats
.coalesced_events
= stats
.tpa_coalesced_events
;
1500 edev
->stats
.coalesced_aborts_num
= stats
.tpa_aborts_num
;
1501 edev
->stats
.non_coalesced_pkts
= stats
.tpa_not_coalesced_pkts
;
1502 edev
->stats
.coalesced_bytes
= stats
.tpa_coalesced_bytes
;
1504 edev
->stats
.rx_64_byte_packets
= stats
.rx_64_byte_packets
;
1505 edev
->stats
.rx_127_byte_packets
= stats
.rx_127_byte_packets
;
1506 edev
->stats
.rx_255_byte_packets
= stats
.rx_255_byte_packets
;
1507 edev
->stats
.rx_511_byte_packets
= stats
.rx_511_byte_packets
;
1508 edev
->stats
.rx_1023_byte_packets
= stats
.rx_1023_byte_packets
;
1509 edev
->stats
.rx_1518_byte_packets
= stats
.rx_1518_byte_packets
;
1510 edev
->stats
.rx_1522_byte_packets
= stats
.rx_1522_byte_packets
;
1511 edev
->stats
.rx_2047_byte_packets
= stats
.rx_2047_byte_packets
;
1512 edev
->stats
.rx_4095_byte_packets
= stats
.rx_4095_byte_packets
;
1513 edev
->stats
.rx_9216_byte_packets
= stats
.rx_9216_byte_packets
;
1514 edev
->stats
.rx_16383_byte_packets
= stats
.rx_16383_byte_packets
;
1515 edev
->stats
.rx_crc_errors
= stats
.rx_crc_errors
;
1516 edev
->stats
.rx_mac_crtl_frames
= stats
.rx_mac_crtl_frames
;
1517 edev
->stats
.rx_pause_frames
= stats
.rx_pause_frames
;
1518 edev
->stats
.rx_pfc_frames
= stats
.rx_pfc_frames
;
1519 edev
->stats
.rx_align_errors
= stats
.rx_align_errors
;
1520 edev
->stats
.rx_carrier_errors
= stats
.rx_carrier_errors
;
1521 edev
->stats
.rx_oversize_packets
= stats
.rx_oversize_packets
;
1522 edev
->stats
.rx_jabbers
= stats
.rx_jabbers
;
1523 edev
->stats
.rx_undersize_packets
= stats
.rx_undersize_packets
;
1524 edev
->stats
.rx_fragments
= stats
.rx_fragments
;
1525 edev
->stats
.tx_64_byte_packets
= stats
.tx_64_byte_packets
;
1526 edev
->stats
.tx_65_to_127_byte_packets
= stats
.tx_65_to_127_byte_packets
;
1527 edev
->stats
.tx_128_to_255_byte_packets
=
1528 stats
.tx_128_to_255_byte_packets
;
1529 edev
->stats
.tx_256_to_511_byte_packets
=
1530 stats
.tx_256_to_511_byte_packets
;
1531 edev
->stats
.tx_512_to_1023_byte_packets
=
1532 stats
.tx_512_to_1023_byte_packets
;
1533 edev
->stats
.tx_1024_to_1518_byte_packets
=
1534 stats
.tx_1024_to_1518_byte_packets
;
1535 edev
->stats
.tx_1519_to_2047_byte_packets
=
1536 stats
.tx_1519_to_2047_byte_packets
;
1537 edev
->stats
.tx_2048_to_4095_byte_packets
=
1538 stats
.tx_2048_to_4095_byte_packets
;
1539 edev
->stats
.tx_4096_to_9216_byte_packets
=
1540 stats
.tx_4096_to_9216_byte_packets
;
1541 edev
->stats
.tx_9217_to_16383_byte_packets
=
1542 stats
.tx_9217_to_16383_byte_packets
;
1543 edev
->stats
.tx_pause_frames
= stats
.tx_pause_frames
;
1544 edev
->stats
.tx_pfc_frames
= stats
.tx_pfc_frames
;
1545 edev
->stats
.tx_lpi_entry_count
= stats
.tx_lpi_entry_count
;
1546 edev
->stats
.tx_total_collisions
= stats
.tx_total_collisions
;
1547 edev
->stats
.brb_truncates
= stats
.brb_truncates
;
1548 edev
->stats
.brb_discards
= stats
.brb_discards
;
1549 edev
->stats
.tx_mac_ctrl_frames
= stats
.tx_mac_ctrl_frames
;
1552 static struct rtnl_link_stats64
*qede_get_stats64(
1553 struct net_device
*dev
,
1554 struct rtnl_link_stats64
*stats
)
1556 struct qede_dev
*edev
= netdev_priv(dev
);
1558 qede_fill_by_demand_stats(edev
);
1560 stats
->rx_packets
= edev
->stats
.rx_ucast_pkts
+
1561 edev
->stats
.rx_mcast_pkts
+
1562 edev
->stats
.rx_bcast_pkts
;
1563 stats
->tx_packets
= edev
->stats
.tx_ucast_pkts
+
1564 edev
->stats
.tx_mcast_pkts
+
1565 edev
->stats
.tx_bcast_pkts
;
1567 stats
->rx_bytes
= edev
->stats
.rx_ucast_bytes
+
1568 edev
->stats
.rx_mcast_bytes
+
1569 edev
->stats
.rx_bcast_bytes
;
1571 stats
->tx_bytes
= edev
->stats
.tx_ucast_bytes
+
1572 edev
->stats
.tx_mcast_bytes
+
1573 edev
->stats
.tx_bcast_bytes
;
1575 stats
->tx_errors
= edev
->stats
.tx_err_drop_pkts
;
1576 stats
->multicast
= edev
->stats
.rx_mcast_pkts
+
1577 edev
->stats
.rx_bcast_pkts
;
1579 stats
->rx_fifo_errors
= edev
->stats
.no_buff_discards
;
1581 stats
->collisions
= edev
->stats
.tx_total_collisions
;
1582 stats
->rx_crc_errors
= edev
->stats
.rx_crc_errors
;
1583 stats
->rx_frame_errors
= edev
->stats
.rx_align_errors
;
1588 static void qede_config_accept_any_vlan(struct qede_dev
*edev
, bool action
)
1590 struct qed_update_vport_params params
;
1593 /* Proceed only if action actually needs to be performed */
1594 if (edev
->accept_any_vlan
== action
)
1597 memset(¶ms
, 0, sizeof(params
));
1599 params
.vport_id
= 0;
1600 params
.accept_any_vlan
= action
;
1601 params
.update_accept_any_vlan_flg
= 1;
1603 rc
= edev
->ops
->vport_update(edev
->cdev
, ¶ms
);
1605 DP_ERR(edev
, "Failed to %s accept-any-vlan\n",
1606 action
? "enable" : "disable");
1608 DP_INFO(edev
, "%s accept-any-vlan\n",
1609 action
? "enabled" : "disabled");
1610 edev
->accept_any_vlan
= action
;
1614 static int qede_vlan_rx_add_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1616 struct qede_dev
*edev
= netdev_priv(dev
);
1617 struct qede_vlan
*vlan
, *tmp
;
1620 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan 0x%04x\n", vid
);
1622 vlan
= kzalloc(sizeof(*vlan
), GFP_KERNEL
);
1624 DP_INFO(edev
, "Failed to allocate struct for vlan\n");
1627 INIT_LIST_HEAD(&vlan
->list
);
1629 vlan
->configured
= false;
1631 /* Verify vlan isn't already configured */
1632 list_for_each_entry(tmp
, &edev
->vlan_list
, list
) {
1633 if (tmp
->vid
== vlan
->vid
) {
1634 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
1635 "vlan already configured\n");
1641 /* If interface is down, cache this VLAN ID and return */
1642 if (edev
->state
!= QEDE_STATE_OPEN
) {
1643 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
1644 "Interface is down, VLAN %d will be configured when interface is up\n",
1647 edev
->non_configured_vlans
++;
1648 list_add(&vlan
->list
, &edev
->vlan_list
);
1653 /* Check for the filter limit.
1654 * Note - vlan0 has a reserved filter and can be added without
1655 * worrying about quota
1657 if ((edev
->configured_vlans
< edev
->dev_info
.num_vlan_filters
) ||
1659 rc
= qede_set_ucast_rx_vlan(edev
,
1660 QED_FILTER_XCAST_TYPE_ADD
,
1663 DP_ERR(edev
, "Failed to configure VLAN %d\n",
1668 vlan
->configured
= true;
1670 /* vlan0 filter isn't consuming out of our quota */
1672 edev
->configured_vlans
++;
1674 /* Out of quota; Activate accept-any-VLAN mode */
1675 if (!edev
->non_configured_vlans
)
1676 qede_config_accept_any_vlan(edev
, true);
1678 edev
->non_configured_vlans
++;
1681 list_add(&vlan
->list
, &edev
->vlan_list
);
1686 static void qede_del_vlan_from_list(struct qede_dev
*edev
,
1687 struct qede_vlan
*vlan
)
1689 /* vlan0 filter isn't consuming out of our quota */
1690 if (vlan
->vid
!= 0) {
1691 if (vlan
->configured
)
1692 edev
->configured_vlans
--;
1694 edev
->non_configured_vlans
--;
1697 list_del(&vlan
->list
);
1701 static int qede_configure_vlan_filters(struct qede_dev
*edev
)
1703 int rc
= 0, real_rc
= 0, accept_any_vlan
= 0;
1704 struct qed_dev_eth_info
*dev_info
;
1705 struct qede_vlan
*vlan
= NULL
;
1707 if (list_empty(&edev
->vlan_list
))
1710 dev_info
= &edev
->dev_info
;
1712 /* Configure non-configured vlans */
1713 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
1714 if (vlan
->configured
)
1717 /* We have used all our credits, now enable accept_any_vlan */
1718 if ((vlan
->vid
!= 0) &&
1719 (edev
->configured_vlans
== dev_info
->num_vlan_filters
)) {
1720 accept_any_vlan
= 1;
1724 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan %d\n", vlan
->vid
);
1726 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_ADD
,
1729 DP_ERR(edev
, "Failed to configure VLAN %u\n",
1735 vlan
->configured
= true;
1736 /* vlan0 filter doesn't consume our VLAN filter's quota */
1737 if (vlan
->vid
!= 0) {
1738 edev
->non_configured_vlans
--;
1739 edev
->configured_vlans
++;
1743 /* enable accept_any_vlan mode if we have more VLANs than credits,
1744 * or remove accept_any_vlan mode if we've actually removed
1745 * a non-configured vlan, and all remaining vlans are truly configured.
1748 if (accept_any_vlan
)
1749 qede_config_accept_any_vlan(edev
, true);
1750 else if (!edev
->non_configured_vlans
)
1751 qede_config_accept_any_vlan(edev
, false);
1756 static int qede_vlan_rx_kill_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1758 struct qede_dev
*edev
= netdev_priv(dev
);
1759 struct qede_vlan
*vlan
= NULL
;
1762 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
, "Removing vlan 0x%04x\n", vid
);
1764 /* Find whether entry exists */
1765 list_for_each_entry(vlan
, &edev
->vlan_list
, list
)
1766 if (vlan
->vid
== vid
)
1769 if (!vlan
|| (vlan
->vid
!= vid
)) {
1770 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
1771 "Vlan isn't configured\n");
1775 if (edev
->state
!= QEDE_STATE_OPEN
) {
1776 /* As interface is already down, we don't have a VPORT
1777 * instance to remove vlan filter. So just update vlan list
1779 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
1780 "Interface is down, removing VLAN from list only\n");
1781 qede_del_vlan_from_list(edev
, vlan
);
1786 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_DEL
, vid
);
1788 DP_ERR(edev
, "Failed to remove VLAN %d\n", vid
);
1792 qede_del_vlan_from_list(edev
, vlan
);
1794 /* We have removed a VLAN - try to see if we can
1795 * configure non-configured VLAN from the list.
1797 rc
= qede_configure_vlan_filters(edev
);
1802 static void qede_vlan_mark_nonconfigured(struct qede_dev
*edev
)
1804 struct qede_vlan
*vlan
= NULL
;
1806 if (list_empty(&edev
->vlan_list
))
1809 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
1810 if (!vlan
->configured
)
1813 vlan
->configured
= false;
1815 /* vlan0 filter isn't consuming out of our quota */
1816 if (vlan
->vid
!= 0) {
1817 edev
->non_configured_vlans
++;
1818 edev
->configured_vlans
--;
1821 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
1822 "marked vlan %d as non-configured\n",
1826 edev
->accept_any_vlan
= false;
1829 #ifdef CONFIG_QEDE_VXLAN
1830 static void qede_add_vxlan_port(struct net_device
*dev
,
1831 sa_family_t sa_family
, __be16 port
)
1833 struct qede_dev
*edev
= netdev_priv(dev
);
1834 u16 t_port
= ntohs(port
);
1836 if (edev
->vxlan_dst_port
)
1839 edev
->vxlan_dst_port
= t_port
;
1841 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added vxlan port=%d", t_port
);
1843 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
1844 schedule_delayed_work(&edev
->sp_task
, 0);
1847 static void qede_del_vxlan_port(struct net_device
*dev
,
1848 sa_family_t sa_family
, __be16 port
)
1850 struct qede_dev
*edev
= netdev_priv(dev
);
1851 u16 t_port
= ntohs(port
);
1853 if (t_port
!= edev
->vxlan_dst_port
)
1856 edev
->vxlan_dst_port
= 0;
1858 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted vxlan port=%d", t_port
);
1860 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
1861 schedule_delayed_work(&edev
->sp_task
, 0);
1865 #ifdef CONFIG_QEDE_GENEVE
1866 static void qede_add_geneve_port(struct net_device
*dev
,
1867 sa_family_t sa_family
, __be16 port
)
1869 struct qede_dev
*edev
= netdev_priv(dev
);
1870 u16 t_port
= ntohs(port
);
1872 if (edev
->geneve_dst_port
)
1875 edev
->geneve_dst_port
= t_port
;
1877 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added geneve port=%d", t_port
);
1878 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
1879 schedule_delayed_work(&edev
->sp_task
, 0);
1882 static void qede_del_geneve_port(struct net_device
*dev
,
1883 sa_family_t sa_family
, __be16 port
)
1885 struct qede_dev
*edev
= netdev_priv(dev
);
1886 u16 t_port
= ntohs(port
);
1888 if (t_port
!= edev
->geneve_dst_port
)
1891 edev
->geneve_dst_port
= 0;
1893 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted geneve port=%d", t_port
);
1894 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
1895 schedule_delayed_work(&edev
->sp_task
, 0);
1899 static const struct net_device_ops qede_netdev_ops
= {
1900 .ndo_open
= qede_open
,
1901 .ndo_stop
= qede_close
,
1902 .ndo_start_xmit
= qede_start_xmit
,
1903 .ndo_set_rx_mode
= qede_set_rx_mode
,
1904 .ndo_set_mac_address
= qede_set_mac_addr
,
1905 .ndo_validate_addr
= eth_validate_addr
,
1906 .ndo_change_mtu
= qede_change_mtu
,
1907 .ndo_vlan_rx_add_vid
= qede_vlan_rx_add_vid
,
1908 .ndo_vlan_rx_kill_vid
= qede_vlan_rx_kill_vid
,
1909 .ndo_get_stats64
= qede_get_stats64
,
1910 #ifdef CONFIG_QEDE_VXLAN
1911 .ndo_add_vxlan_port
= qede_add_vxlan_port
,
1912 .ndo_del_vxlan_port
= qede_del_vxlan_port
,
1914 #ifdef CONFIG_QEDE_GENEVE
1915 .ndo_add_geneve_port
= qede_add_geneve_port
,
1916 .ndo_del_geneve_port
= qede_del_geneve_port
,
1920 /* -------------------------------------------------------------------------
1921 * START OF PROBE / REMOVE
1922 * -------------------------------------------------------------------------
1925 static struct qede_dev
*qede_alloc_etherdev(struct qed_dev
*cdev
,
1926 struct pci_dev
*pdev
,
1927 struct qed_dev_eth_info
*info
,
1931 struct net_device
*ndev
;
1932 struct qede_dev
*edev
;
1934 ndev
= alloc_etherdev_mqs(sizeof(*edev
),
1938 pr_err("etherdev allocation failed\n");
1942 edev
= netdev_priv(ndev
);
1946 edev
->dp_module
= dp_module
;
1947 edev
->dp_level
= dp_level
;
1948 edev
->ops
= qed_ops
;
1949 edev
->q_num_rx_buffers
= NUM_RX_BDS_DEF
;
1950 edev
->q_num_tx_buffers
= NUM_TX_BDS_DEF
;
1952 DP_INFO(edev
, "Allocated netdev with 64 tx queues and 64 rx queues\n");
1954 SET_NETDEV_DEV(ndev
, &pdev
->dev
);
1956 memset(&edev
->stats
, 0, sizeof(edev
->stats
));
1957 memcpy(&edev
->dev_info
, info
, sizeof(*info
));
1959 edev
->num_tc
= edev
->dev_info
.num_tc
;
1961 INIT_LIST_HEAD(&edev
->vlan_list
);
1966 static void qede_init_ndev(struct qede_dev
*edev
)
1968 struct net_device
*ndev
= edev
->ndev
;
1969 struct pci_dev
*pdev
= edev
->pdev
;
1972 pci_set_drvdata(pdev
, ndev
);
1974 ndev
->mem_start
= edev
->dev_info
.common
.pci_mem_start
;
1975 ndev
->base_addr
= ndev
->mem_start
;
1976 ndev
->mem_end
= edev
->dev_info
.common
.pci_mem_end
;
1977 ndev
->irq
= edev
->dev_info
.common
.pci_irq
;
1979 ndev
->watchdog_timeo
= TX_TIMEOUT
;
1981 ndev
->netdev_ops
= &qede_netdev_ops
;
1983 qede_set_ethtool_ops(ndev
);
1985 /* user-changeble features */
1986 hw_features
= NETIF_F_GRO
| NETIF_F_SG
|
1987 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
1988 NETIF_F_TSO
| NETIF_F_TSO6
;
1990 ndev
->vlan_features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
1992 ndev
->features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
1993 NETIF_F_HW_VLAN_CTAG_RX
| NETIF_F_HIGHDMA
|
1994 NETIF_F_HW_VLAN_CTAG_FILTER
| NETIF_F_HW_VLAN_CTAG_TX
;
1996 ndev
->hw_features
= hw_features
;
1998 /* Set network device HW mac */
1999 ether_addr_copy(edev
->ndev
->dev_addr
, edev
->dev_info
.common
.hw_mac
);
2002 /* This function converts from 32b param to two params of level and module
2003 * Input 32b decoding:
2004 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
2005 * 'happy' flow, e.g. memory allocation failed.
2006 * b30 - enable all INFO prints. INFO prints are for major steps in the flow
2007 * and provide important parameters.
2008 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
2009 * module. VERBOSE prints are for tracking the specific flow in low level.
2011 * Notice that the level should be that of the lowest required logs.
2013 void qede_config_debug(uint debug
, u32
*p_dp_module
, u8
*p_dp_level
)
2015 *p_dp_level
= QED_LEVEL_NOTICE
;
2018 if (debug
& QED_LOG_VERBOSE_MASK
) {
2019 *p_dp_level
= QED_LEVEL_VERBOSE
;
2020 *p_dp_module
= (debug
& 0x3FFFFFFF);
2021 } else if (debug
& QED_LOG_INFO_MASK
) {
2022 *p_dp_level
= QED_LEVEL_INFO
;
2023 } else if (debug
& QED_LOG_NOTICE_MASK
) {
2024 *p_dp_level
= QED_LEVEL_NOTICE
;
2028 static void qede_free_fp_array(struct qede_dev
*edev
)
2030 if (edev
->fp_array
) {
2031 struct qede_fastpath
*fp
;
2035 fp
= &edev
->fp_array
[i
];
2041 kfree(edev
->fp_array
);
2046 static int qede_alloc_fp_array(struct qede_dev
*edev
)
2048 struct qede_fastpath
*fp
;
2051 edev
->fp_array
= kcalloc(QEDE_RSS_CNT(edev
),
2052 sizeof(*edev
->fp_array
), GFP_KERNEL
);
2053 if (!edev
->fp_array
) {
2054 DP_NOTICE(edev
, "fp array allocation failed\n");
2059 fp
= &edev
->fp_array
[i
];
2061 fp
->sb_info
= kcalloc(1, sizeof(*fp
->sb_info
), GFP_KERNEL
);
2063 DP_NOTICE(edev
, "sb info struct allocation failed\n");
2067 fp
->rxq
= kcalloc(1, sizeof(*fp
->rxq
), GFP_KERNEL
);
2069 DP_NOTICE(edev
, "RXQ struct allocation failed\n");
2073 fp
->txqs
= kcalloc(edev
->num_tc
, sizeof(*fp
->txqs
), GFP_KERNEL
);
2075 DP_NOTICE(edev
, "TXQ array allocation failed\n");
2082 qede_free_fp_array(edev
);
2086 static void qede_sp_task(struct work_struct
*work
)
2088 struct qede_dev
*edev
= container_of(work
, struct qede_dev
,
2090 struct qed_dev
*cdev
= edev
->cdev
;
2092 mutex_lock(&edev
->qede_lock
);
2094 if (edev
->state
== QEDE_STATE_OPEN
) {
2095 if (test_and_clear_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
))
2096 qede_config_rx_mode(edev
->ndev
);
2099 if (test_and_clear_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
)) {
2100 struct qed_tunn_params tunn_params
;
2102 memset(&tunn_params
, 0, sizeof(tunn_params
));
2103 tunn_params
.update_vxlan_port
= 1;
2104 tunn_params
.vxlan_port
= edev
->vxlan_dst_port
;
2105 qed_ops
->tunn_config(cdev
, &tunn_params
);
2108 if (test_and_clear_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
)) {
2109 struct qed_tunn_params tunn_params
;
2111 memset(&tunn_params
, 0, sizeof(tunn_params
));
2112 tunn_params
.update_geneve_port
= 1;
2113 tunn_params
.geneve_port
= edev
->geneve_dst_port
;
2114 qed_ops
->tunn_config(cdev
, &tunn_params
);
2117 mutex_unlock(&edev
->qede_lock
);
2120 static void qede_update_pf_params(struct qed_dev
*cdev
)
2122 struct qed_pf_params pf_params
;
2125 memset(&pf_params
, 0, sizeof(struct qed_pf_params
));
2126 pf_params
.eth_pf_params
.num_cons
= 32;
2127 qed_ops
->common
->update_pf_params(cdev
, &pf_params
);
2130 enum qede_probe_mode
{
2134 static int __qede_probe(struct pci_dev
*pdev
, u32 dp_module
, u8 dp_level
,
2135 enum qede_probe_mode mode
)
2137 struct qed_slowpath_params params
;
2138 struct qed_dev_eth_info dev_info
;
2139 struct qede_dev
*edev
;
2140 struct qed_dev
*cdev
;
2143 if (unlikely(dp_level
& QED_LEVEL_INFO
))
2144 pr_notice("Starting qede probe\n");
2146 cdev
= qed_ops
->common
->probe(pdev
, QED_PROTOCOL_ETH
,
2147 dp_module
, dp_level
);
2153 qede_update_pf_params(cdev
);
2155 /* Start the Slowpath-process */
2156 memset(¶ms
, 0, sizeof(struct qed_slowpath_params
));
2157 params
.int_mode
= QED_INT_MODE_MSIX
;
2158 params
.drv_major
= QEDE_MAJOR_VERSION
;
2159 params
.drv_minor
= QEDE_MINOR_VERSION
;
2160 params
.drv_rev
= QEDE_REVISION_VERSION
;
2161 params
.drv_eng
= QEDE_ENGINEERING_VERSION
;
2162 strlcpy(params
.name
, "qede LAN", QED_DRV_VER_STR_SIZE
);
2163 rc
= qed_ops
->common
->slowpath_start(cdev
, ¶ms
);
2165 pr_notice("Cannot start slowpath\n");
2169 /* Learn information crucial for qede to progress */
2170 rc
= qed_ops
->fill_dev_info(cdev
, &dev_info
);
2174 edev
= qede_alloc_etherdev(cdev
, pdev
, &dev_info
, dp_module
,
2181 qede_init_ndev(edev
);
2183 rc
= register_netdev(edev
->ndev
);
2185 DP_NOTICE(edev
, "Cannot register net-device\n");
2189 edev
->ops
->common
->set_id(cdev
, edev
->ndev
->name
, DRV_MODULE_VERSION
);
2191 edev
->ops
->register_ops(cdev
, &qede_ll_ops
, edev
);
2193 INIT_DELAYED_WORK(&edev
->sp_task
, qede_sp_task
);
2194 mutex_init(&edev
->qede_lock
);
2196 DP_INFO(edev
, "Ending successfully qede probe\n");
2201 free_netdev(edev
->ndev
);
2203 qed_ops
->common
->slowpath_stop(cdev
);
2205 qed_ops
->common
->remove(cdev
);
2210 static int qede_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
2215 qede_config_debug(debug
, &dp_module
, &dp_level
);
2217 return __qede_probe(pdev
, dp_module
, dp_level
,
2221 enum qede_remove_mode
{
2225 static void __qede_remove(struct pci_dev
*pdev
, enum qede_remove_mode mode
)
2227 struct net_device
*ndev
= pci_get_drvdata(pdev
);
2228 struct qede_dev
*edev
= netdev_priv(ndev
);
2229 struct qed_dev
*cdev
= edev
->cdev
;
2231 DP_INFO(edev
, "Starting qede_remove\n");
2233 cancel_delayed_work_sync(&edev
->sp_task
);
2234 unregister_netdev(ndev
);
2236 edev
->ops
->common
->set_power_state(cdev
, PCI_D0
);
2238 pci_set_drvdata(pdev
, NULL
);
2242 /* Use global ops since we've freed edev */
2243 qed_ops
->common
->slowpath_stop(cdev
);
2244 qed_ops
->common
->remove(cdev
);
2246 pr_notice("Ending successfully qede_remove\n");
2249 static void qede_remove(struct pci_dev
*pdev
)
2251 __qede_remove(pdev
, QEDE_REMOVE_NORMAL
);
2254 /* -------------------------------------------------------------------------
2255 * START OF LOAD / UNLOAD
2256 * -------------------------------------------------------------------------
2259 static int qede_set_num_queues(struct qede_dev
*edev
)
2264 /* Setup queues according to possible resources*/
2266 rss_num
= edev
->req_rss
;
2268 rss_num
= netif_get_num_default_rss_queues() *
2269 edev
->dev_info
.common
.num_hwfns
;
2271 rss_num
= min_t(u16
, QEDE_MAX_RSS_CNT(edev
), rss_num
);
2273 rc
= edev
->ops
->common
->set_fp_int(edev
->cdev
, rss_num
);
2275 /* Managed to request interrupts for our queues */
2277 DP_INFO(edev
, "Managed %d [of %d] RSS queues\n",
2278 QEDE_RSS_CNT(edev
), rss_num
);
2284 static void qede_free_mem_sb(struct qede_dev
*edev
,
2285 struct qed_sb_info
*sb_info
)
2287 if (sb_info
->sb_virt
)
2288 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_info
->sb_virt
),
2289 (void *)sb_info
->sb_virt
, sb_info
->sb_phys
);
2292 /* This function allocates fast-path status block memory */
2293 static int qede_alloc_mem_sb(struct qede_dev
*edev
,
2294 struct qed_sb_info
*sb_info
,
2297 struct status_block
*sb_virt
;
2301 sb_virt
= dma_alloc_coherent(&edev
->pdev
->dev
,
2303 &sb_phys
, GFP_KERNEL
);
2305 DP_ERR(edev
, "Status block allocation failed\n");
2309 rc
= edev
->ops
->common
->sb_init(edev
->cdev
, sb_info
,
2310 sb_virt
, sb_phys
, sb_id
,
2311 QED_SB_TYPE_L2_QUEUE
);
2313 DP_ERR(edev
, "Status block initialization failed\n");
2314 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_virt
),
2322 static void qede_free_rx_buffers(struct qede_dev
*edev
,
2323 struct qede_rx_queue
*rxq
)
2327 for (i
= rxq
->sw_rx_cons
; i
!= rxq
->sw_rx_prod
; i
++) {
2328 struct sw_rx_data
*rx_buf
;
2331 rx_buf
= &rxq
->sw_rx_ring
[i
& NUM_RX_BDS_MAX
];
2332 data
= rx_buf
->data
;
2334 dma_unmap_page(&edev
->pdev
->dev
,
2336 PAGE_SIZE
, DMA_FROM_DEVICE
);
2338 rx_buf
->data
= NULL
;
2343 static void qede_free_sge_mem(struct qede_dev
*edev
,
2344 struct qede_rx_queue
*rxq
) {
2347 if (edev
->gro_disable
)
2350 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2351 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2352 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2355 dma_unmap_page(&edev
->pdev
->dev
,
2356 dma_unmap_addr(replace_buf
, mapping
),
2357 PAGE_SIZE
, DMA_FROM_DEVICE
);
2358 __free_page(replace_buf
->data
);
2363 static void qede_free_mem_rxq(struct qede_dev
*edev
,
2364 struct qede_rx_queue
*rxq
)
2366 qede_free_sge_mem(edev
, rxq
);
2368 /* Free rx buffers */
2369 qede_free_rx_buffers(edev
, rxq
);
2371 /* Free the parallel SW ring */
2372 kfree(rxq
->sw_rx_ring
);
2374 /* Free the real RQ ring used by FW */
2375 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_bd_ring
);
2376 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_comp_ring
);
2379 static int qede_alloc_rx_buffer(struct qede_dev
*edev
,
2380 struct qede_rx_queue
*rxq
)
2382 struct sw_rx_data
*sw_rx_data
;
2383 struct eth_rx_bd
*rx_bd
;
2388 rx_buf_size
= rxq
->rx_buf_size
;
2390 data
= alloc_pages(GFP_ATOMIC
, 0);
2391 if (unlikely(!data
)) {
2392 DP_NOTICE(edev
, "Failed to allocate Rx data [page]\n");
2396 /* Map the entire page as it would be used
2397 * for multiple RX buffer segment size mapping.
2399 mapping
= dma_map_page(&edev
->pdev
->dev
, data
, 0,
2400 PAGE_SIZE
, DMA_FROM_DEVICE
);
2401 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2403 DP_NOTICE(edev
, "Failed to map Rx buffer\n");
2407 sw_rx_data
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
2408 sw_rx_data
->page_offset
= 0;
2409 sw_rx_data
->data
= data
;
2410 sw_rx_data
->mapping
= mapping
;
2412 /* Advance PROD and get BD pointer */
2413 rx_bd
= (struct eth_rx_bd
*)qed_chain_produce(&rxq
->rx_bd_ring
);
2415 rx_bd
->addr
.hi
= cpu_to_le32(upper_32_bits(mapping
));
2416 rx_bd
->addr
.lo
= cpu_to_le32(lower_32_bits(mapping
));
2423 static int qede_alloc_sge_mem(struct qede_dev
*edev
,
2424 struct qede_rx_queue
*rxq
)
2429 if (edev
->gro_disable
)
2432 if (edev
->ndev
->mtu
> PAGE_SIZE
) {
2433 edev
->gro_disable
= 1;
2437 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2438 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2439 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2441 replace_buf
->data
= alloc_pages(GFP_ATOMIC
, 0);
2442 if (unlikely(!replace_buf
->data
)) {
2444 "Failed to allocate TPA skb pool [replacement buffer]\n");
2448 mapping
= dma_map_page(&edev
->pdev
->dev
, replace_buf
->data
, 0,
2449 rxq
->rx_buf_size
, DMA_FROM_DEVICE
);
2450 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2452 "Failed to map TPA replacement buffer\n");
2456 dma_unmap_addr_set(replace_buf
, mapping
, mapping
);
2457 tpa_info
->replace_buf
.page_offset
= 0;
2459 tpa_info
->replace_buf_mapping
= mapping
;
2460 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
2465 qede_free_sge_mem(edev
, rxq
);
2466 edev
->gro_disable
= 1;
2470 /* This function allocates all memory needed per Rx queue */
2471 static int qede_alloc_mem_rxq(struct qede_dev
*edev
,
2472 struct qede_rx_queue
*rxq
)
2474 int i
, rc
, size
, num_allocated
;
2476 rxq
->num_rx_buffers
= edev
->q_num_rx_buffers
;
2478 rxq
->rx_buf_size
= NET_IP_ALIGN
+ ETH_OVERHEAD
+
2480 if (rxq
->rx_buf_size
> PAGE_SIZE
)
2481 rxq
->rx_buf_size
= PAGE_SIZE
;
2483 /* Segment size to spilt a page in multiple equal parts */
2484 rxq
->rx_buf_seg_size
= roundup_pow_of_two(rxq
->rx_buf_size
);
2486 /* Allocate the parallel driver ring for Rx buffers */
2487 size
= sizeof(*rxq
->sw_rx_ring
) * RX_RING_SIZE
;
2488 rxq
->sw_rx_ring
= kzalloc(size
, GFP_KERNEL
);
2489 if (!rxq
->sw_rx_ring
) {
2490 DP_ERR(edev
, "Rx buffers ring allocation failed\n");
2494 /* Allocate FW Rx ring */
2495 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2496 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2497 QED_CHAIN_MODE_NEXT_PTR
,
2499 sizeof(struct eth_rx_bd
),
2505 /* Allocate FW completion ring */
2506 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2507 QED_CHAIN_USE_TO_CONSUME
,
2510 sizeof(union eth_rx_cqe
),
2511 &rxq
->rx_comp_ring
);
2515 /* Allocate buffers for the Rx ring */
2516 for (i
= 0; i
< rxq
->num_rx_buffers
; i
++) {
2517 rc
= qede_alloc_rx_buffer(edev
, rxq
);
2522 if (!num_allocated
) {
2523 DP_ERR(edev
, "Rx buffers allocation failed\n");
2525 } else if (num_allocated
< rxq
->num_rx_buffers
) {
2527 "Allocated less buffers than desired (%d allocated)\n",
2531 qede_alloc_sge_mem(edev
, rxq
);
2536 qede_free_mem_rxq(edev
, rxq
);
2540 static void qede_free_mem_txq(struct qede_dev
*edev
,
2541 struct qede_tx_queue
*txq
)
2543 /* Free the parallel SW ring */
2544 kfree(txq
->sw_tx_ring
);
2546 /* Free the real RQ ring used by FW */
2547 edev
->ops
->common
->chain_free(edev
->cdev
, &txq
->tx_pbl
);
2550 /* This function allocates all memory needed per Tx queue */
2551 static int qede_alloc_mem_txq(struct qede_dev
*edev
,
2552 struct qede_tx_queue
*txq
)
2555 union eth_tx_bd_types
*p_virt
;
2557 txq
->num_tx_buffers
= edev
->q_num_tx_buffers
;
2559 /* Allocate the parallel driver ring for Tx buffers */
2560 size
= sizeof(*txq
->sw_tx_ring
) * NUM_TX_BDS_MAX
;
2561 txq
->sw_tx_ring
= kzalloc(size
, GFP_KERNEL
);
2562 if (!txq
->sw_tx_ring
) {
2563 DP_NOTICE(edev
, "Tx buffers ring allocation failed\n");
2567 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2568 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2579 qede_free_mem_txq(edev
, txq
);
2583 /* This function frees all memory of a single fp */
2584 static void qede_free_mem_fp(struct qede_dev
*edev
,
2585 struct qede_fastpath
*fp
)
2589 qede_free_mem_sb(edev
, fp
->sb_info
);
2591 qede_free_mem_rxq(edev
, fp
->rxq
);
2593 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
2594 qede_free_mem_txq(edev
, &fp
->txqs
[tc
]);
2597 /* This function allocates all memory needed for a single fp (i.e. an entity
2598 * which contains status block, one rx queue and multiple per-TC tx queues.
2600 static int qede_alloc_mem_fp(struct qede_dev
*edev
,
2601 struct qede_fastpath
*fp
)
2605 rc
= qede_alloc_mem_sb(edev
, fp
->sb_info
, fp
->rss_id
);
2609 rc
= qede_alloc_mem_rxq(edev
, fp
->rxq
);
2613 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2614 rc
= qede_alloc_mem_txq(edev
, &fp
->txqs
[tc
]);
2622 qede_free_mem_fp(edev
, fp
);
2626 static void qede_free_mem_load(struct qede_dev
*edev
)
2631 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
2633 qede_free_mem_fp(edev
, fp
);
2637 /* This function allocates all qede memory at NIC load. */
2638 static int qede_alloc_mem_load(struct qede_dev
*edev
)
2642 for (rss_id
= 0; rss_id
< QEDE_RSS_CNT(edev
); rss_id
++) {
2643 struct qede_fastpath
*fp
= &edev
->fp_array
[rss_id
];
2645 rc
= qede_alloc_mem_fp(edev
, fp
);
2650 if (rss_id
!= QEDE_RSS_CNT(edev
)) {
2651 /* Failed allocating memory for all the queues */
2654 "Failed to allocate memory for the leading queue\n");
2658 "Failed to allocate memory for all of RSS queues\n Desired: %d queues, allocated: %d queues\n",
2659 QEDE_RSS_CNT(edev
), rss_id
);
2661 edev
->num_rss
= rss_id
;
2667 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
2668 static void qede_init_fp(struct qede_dev
*edev
)
2670 int rss_id
, txq_index
, tc
;
2671 struct qede_fastpath
*fp
;
2673 for_each_rss(rss_id
) {
2674 fp
= &edev
->fp_array
[rss_id
];
2677 fp
->rss_id
= rss_id
;
2679 memset((void *)&fp
->napi
, 0, sizeof(fp
->napi
));
2681 memset((void *)fp
->sb_info
, 0, sizeof(*fp
->sb_info
));
2683 memset((void *)fp
->rxq
, 0, sizeof(*fp
->rxq
));
2684 fp
->rxq
->rxq_id
= rss_id
;
2686 memset((void *)fp
->txqs
, 0, (edev
->num_tc
* sizeof(*fp
->txqs
)));
2687 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2688 txq_index
= tc
* QEDE_RSS_CNT(edev
) + rss_id
;
2689 fp
->txqs
[tc
].index
= txq_index
;
2692 snprintf(fp
->name
, sizeof(fp
->name
), "%s-fp-%d",
2693 edev
->ndev
->name
, rss_id
);
2696 edev
->gro_disable
= !(edev
->ndev
->features
& NETIF_F_GRO
);
2699 static int qede_set_real_num_queues(struct qede_dev
*edev
)
2703 rc
= netif_set_real_num_tx_queues(edev
->ndev
, QEDE_TSS_CNT(edev
));
2705 DP_NOTICE(edev
, "Failed to set real number of Tx queues\n");
2708 rc
= netif_set_real_num_rx_queues(edev
->ndev
, QEDE_RSS_CNT(edev
));
2710 DP_NOTICE(edev
, "Failed to set real number of Rx queues\n");
2717 static void qede_napi_disable_remove(struct qede_dev
*edev
)
2722 napi_disable(&edev
->fp_array
[i
].napi
);
2724 netif_napi_del(&edev
->fp_array
[i
].napi
);
2728 static void qede_napi_add_enable(struct qede_dev
*edev
)
2732 /* Add NAPI objects */
2734 netif_napi_add(edev
->ndev
, &edev
->fp_array
[i
].napi
,
2735 qede_poll
, NAPI_POLL_WEIGHT
);
2736 napi_enable(&edev
->fp_array
[i
].napi
);
2740 static void qede_sync_free_irqs(struct qede_dev
*edev
)
2744 for (i
= 0; i
< edev
->int_info
.used_cnt
; i
++) {
2745 if (edev
->int_info
.msix_cnt
) {
2746 synchronize_irq(edev
->int_info
.msix
[i
].vector
);
2747 free_irq(edev
->int_info
.msix
[i
].vector
,
2748 &edev
->fp_array
[i
]);
2750 edev
->ops
->common
->simd_handler_clean(edev
->cdev
, i
);
2754 edev
->int_info
.used_cnt
= 0;
2757 static int qede_req_msix_irqs(struct qede_dev
*edev
)
2761 /* Sanitize number of interrupts == number of prepared RSS queues */
2762 if (QEDE_RSS_CNT(edev
) > edev
->int_info
.msix_cnt
) {
2764 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
2765 QEDE_RSS_CNT(edev
), edev
->int_info
.msix_cnt
);
2769 for (i
= 0; i
< QEDE_RSS_CNT(edev
); i
++) {
2770 rc
= request_irq(edev
->int_info
.msix
[i
].vector
,
2771 qede_msix_fp_int
, 0, edev
->fp_array
[i
].name
,
2772 &edev
->fp_array
[i
]);
2774 DP_ERR(edev
, "Request fp %d irq failed\n", i
);
2775 qede_sync_free_irqs(edev
);
2778 DP_VERBOSE(edev
, NETIF_MSG_INTR
,
2779 "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
2780 edev
->fp_array
[i
].name
, i
,
2781 &edev
->fp_array
[i
]);
2782 edev
->int_info
.used_cnt
++;
2788 static void qede_simd_fp_handler(void *cookie
)
2790 struct qede_fastpath
*fp
= (struct qede_fastpath
*)cookie
;
2792 napi_schedule_irqoff(&fp
->napi
);
2795 static int qede_setup_irqs(struct qede_dev
*edev
)
2799 /* Learn Interrupt configuration */
2800 rc
= edev
->ops
->common
->get_fp_int(edev
->cdev
, &edev
->int_info
);
2804 if (edev
->int_info
.msix_cnt
) {
2805 rc
= qede_req_msix_irqs(edev
);
2808 edev
->ndev
->irq
= edev
->int_info
.msix
[0].vector
;
2810 const struct qed_common_ops
*ops
;
2812 /* qed should learn receive the RSS ids and callbacks */
2813 ops
= edev
->ops
->common
;
2814 for (i
= 0; i
< QEDE_RSS_CNT(edev
); i
++)
2815 ops
->simd_handler_config(edev
->cdev
,
2816 &edev
->fp_array
[i
], i
,
2817 qede_simd_fp_handler
);
2818 edev
->int_info
.used_cnt
= QEDE_RSS_CNT(edev
);
2823 static int qede_drain_txq(struct qede_dev
*edev
,
2824 struct qede_tx_queue
*txq
,
2829 while (txq
->sw_tx_cons
!= txq
->sw_tx_prod
) {
2833 "Tx queue[%d] is stuck, requesting MCP to drain\n",
2835 rc
= edev
->ops
->common
->drain(edev
->cdev
);
2838 return qede_drain_txq(edev
, txq
, false);
2841 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
2842 txq
->index
, txq
->sw_tx_prod
,
2847 usleep_range(1000, 2000);
2851 /* FW finished processing, wait for HW to transmit all tx packets */
2852 usleep_range(1000, 2000);
2857 static int qede_stop_queues(struct qede_dev
*edev
)
2859 struct qed_update_vport_params vport_update_params
;
2860 struct qed_dev
*cdev
= edev
->cdev
;
2863 /* Disable the vport */
2864 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
2865 vport_update_params
.vport_id
= 0;
2866 vport_update_params
.update_vport_active_flg
= 1;
2867 vport_update_params
.vport_active_flg
= 0;
2868 vport_update_params
.update_rss_flg
= 0;
2870 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
2872 DP_ERR(edev
, "Failed to update vport\n");
2876 /* Flush Tx queues. If needed, request drain from MCP */
2878 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
2880 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2881 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
2883 rc
= qede_drain_txq(edev
, txq
, true);
2889 /* Stop all Queues in reverse order*/
2890 for (i
= QEDE_RSS_CNT(edev
) - 1; i
>= 0; i
--) {
2891 struct qed_stop_rxq_params rx_params
;
2893 /* Stop the Tx Queue(s)*/
2894 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2895 struct qed_stop_txq_params tx_params
;
2897 tx_params
.rss_id
= i
;
2898 tx_params
.tx_queue_id
= tc
* QEDE_RSS_CNT(edev
) + i
;
2899 rc
= edev
->ops
->q_tx_stop(cdev
, &tx_params
);
2901 DP_ERR(edev
, "Failed to stop TXQ #%d\n",
2902 tx_params
.tx_queue_id
);
2907 /* Stop the Rx Queue*/
2908 memset(&rx_params
, 0, sizeof(rx_params
));
2909 rx_params
.rss_id
= i
;
2910 rx_params
.rx_queue_id
= i
;
2912 rc
= edev
->ops
->q_rx_stop(cdev
, &rx_params
);
2914 DP_ERR(edev
, "Failed to stop RXQ #%d\n", i
);
2919 /* Stop the vport */
2920 rc
= edev
->ops
->vport_stop(cdev
, 0);
2922 DP_ERR(edev
, "Failed to stop VPORT\n");
2927 static int qede_start_queues(struct qede_dev
*edev
)
2930 int vlan_removal_en
= 1;
2931 struct qed_dev
*cdev
= edev
->cdev
;
2932 struct qed_update_vport_params vport_update_params
;
2933 struct qed_queue_start_common_params q_params
;
2934 struct qed_start_vport_params start
= {0};
2935 bool reset_rss_indir
= false;
2937 if (!edev
->num_rss
) {
2939 "Cannot update V-VPORT as active as there are no Rx queues\n");
2943 start
.gro_enable
= !edev
->gro_disable
;
2944 start
.mtu
= edev
->ndev
->mtu
;
2946 start
.drop_ttl0
= true;
2947 start
.remove_inner_vlan
= vlan_removal_en
;
2949 rc
= edev
->ops
->vport_start(cdev
, &start
);
2952 DP_ERR(edev
, "Start V-PORT failed %d\n", rc
);
2956 DP_VERBOSE(edev
, NETIF_MSG_IFUP
,
2957 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
2958 start
.vport_id
, edev
->ndev
->mtu
+ 0xe, vlan_removal_en
);
2961 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
2962 dma_addr_t phys_table
= fp
->rxq
->rx_comp_ring
.pbl
.p_phys_table
;
2964 memset(&q_params
, 0, sizeof(q_params
));
2965 q_params
.rss_id
= i
;
2966 q_params
.queue_id
= i
;
2967 q_params
.vport_id
= 0;
2968 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
2969 q_params
.sb_idx
= RX_PI
;
2971 rc
= edev
->ops
->q_rx_start(cdev
, &q_params
,
2972 fp
->rxq
->rx_buf_size
,
2973 fp
->rxq
->rx_bd_ring
.p_phys_addr
,
2975 fp
->rxq
->rx_comp_ring
.page_cnt
,
2976 &fp
->rxq
->hw_rxq_prod_addr
);
2978 DP_ERR(edev
, "Start RXQ #%d failed %d\n", i
, rc
);
2982 fp
->rxq
->hw_cons_ptr
= &fp
->sb_info
->sb_virt
->pi_array
[RX_PI
];
2984 qede_update_rx_prod(edev
, fp
->rxq
);
2986 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2987 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
2988 int txq_index
= tc
* QEDE_RSS_CNT(edev
) + i
;
2990 memset(&q_params
, 0, sizeof(q_params
));
2991 q_params
.rss_id
= i
;
2992 q_params
.queue_id
= txq_index
;
2993 q_params
.vport_id
= 0;
2994 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
2995 q_params
.sb_idx
= TX_PI(tc
);
2997 rc
= edev
->ops
->q_tx_start(cdev
, &q_params
,
2998 txq
->tx_pbl
.pbl
.p_phys_table
,
2999 txq
->tx_pbl
.page_cnt
,
3000 &txq
->doorbell_addr
);
3002 DP_ERR(edev
, "Start TXQ #%d failed %d\n",
3008 &fp
->sb_info
->sb_virt
->pi_array
[TX_PI(tc
)];
3009 SET_FIELD(txq
->tx_db
.data
.params
,
3010 ETH_DB_DATA_DEST
, DB_DEST_XCM
);
3011 SET_FIELD(txq
->tx_db
.data
.params
, ETH_DB_DATA_AGG_CMD
,
3013 SET_FIELD(txq
->tx_db
.data
.params
,
3014 ETH_DB_DATA_AGG_VAL_SEL
,
3015 DQ_XCM_ETH_TX_BD_PROD_CMD
);
3017 txq
->tx_db
.data
.agg_flags
= DQ_XCM_ETH_DQ_CF_CMD
;
3021 /* Prepare and send the vport enable */
3022 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
3023 vport_update_params
.vport_id
= start
.vport_id
;
3024 vport_update_params
.update_vport_active_flg
= 1;
3025 vport_update_params
.vport_active_flg
= 1;
3027 /* Fill struct with RSS params */
3028 if (QEDE_RSS_CNT(edev
) > 1) {
3029 vport_update_params
.update_rss_flg
= 1;
3031 /* Need to validate current RSS config uses valid entries */
3032 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3033 if (edev
->rss_params
.rss_ind_table
[i
] >=
3035 reset_rss_indir
= true;
3040 if (!(edev
->rss_params_inited
& QEDE_RSS_INDIR_INITED
) ||
3044 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3047 val
= QEDE_RSS_CNT(edev
);
3048 indir_val
= ethtool_rxfh_indir_default(i
, val
);
3049 edev
->rss_params
.rss_ind_table
[i
] = indir_val
;
3051 edev
->rss_params_inited
|= QEDE_RSS_INDIR_INITED
;
3054 if (!(edev
->rss_params_inited
& QEDE_RSS_KEY_INITED
)) {
3055 netdev_rss_key_fill(edev
->rss_params
.rss_key
,
3056 sizeof(edev
->rss_params
.rss_key
));
3057 edev
->rss_params_inited
|= QEDE_RSS_KEY_INITED
;
3060 if (!(edev
->rss_params_inited
& QEDE_RSS_CAPS_INITED
)) {
3061 edev
->rss_params
.rss_caps
= QED_RSS_IPV4
|
3065 edev
->rss_params_inited
|= QEDE_RSS_CAPS_INITED
;
3068 memcpy(&vport_update_params
.rss_params
, &edev
->rss_params
,
3069 sizeof(vport_update_params
.rss_params
));
3071 memset(&vport_update_params
.rss_params
, 0,
3072 sizeof(vport_update_params
.rss_params
));
3075 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
3077 DP_ERR(edev
, "Update V-PORT failed %d\n", rc
);
3084 static int qede_set_mcast_rx_mac(struct qede_dev
*edev
,
3085 enum qed_filter_xcast_params_type opcode
,
3086 unsigned char *mac
, int num_macs
)
3088 struct qed_filter_params filter_cmd
;
3091 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
3092 filter_cmd
.type
= QED_FILTER_TYPE_MCAST
;
3093 filter_cmd
.filter
.mcast
.type
= opcode
;
3094 filter_cmd
.filter
.mcast
.num
= num_macs
;
3096 for (i
= 0; i
< num_macs
; i
++, mac
+= ETH_ALEN
)
3097 ether_addr_copy(filter_cmd
.filter
.mcast
.mac
[i
], mac
);
3099 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
3102 enum qede_unload_mode
{
3106 static void qede_unload(struct qede_dev
*edev
, enum qede_unload_mode mode
)
3108 struct qed_link_params link_params
;
3111 DP_INFO(edev
, "Starting qede unload\n");
3113 mutex_lock(&edev
->qede_lock
);
3114 edev
->state
= QEDE_STATE_CLOSED
;
3117 netif_tx_disable(edev
->ndev
);
3118 netif_carrier_off(edev
->ndev
);
3120 /* Reset the link */
3121 memset(&link_params
, 0, sizeof(link_params
));
3122 link_params
.link_up
= false;
3123 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3124 rc
= qede_stop_queues(edev
);
3126 qede_sync_free_irqs(edev
);
3130 DP_INFO(edev
, "Stopped Queues\n");
3132 qede_vlan_mark_nonconfigured(edev
);
3133 edev
->ops
->fastpath_stop(edev
->cdev
);
3135 /* Release the interrupts */
3136 qede_sync_free_irqs(edev
);
3137 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3139 qede_napi_disable_remove(edev
);
3141 qede_free_mem_load(edev
);
3142 qede_free_fp_array(edev
);
3145 mutex_unlock(&edev
->qede_lock
);
3146 DP_INFO(edev
, "Ending qede unload\n");
3149 enum qede_load_mode
{
3153 static int qede_load(struct qede_dev
*edev
, enum qede_load_mode mode
)
3155 struct qed_link_params link_params
;
3156 struct qed_link_output link_output
;
3159 DP_INFO(edev
, "Starting qede load\n");
3161 rc
= qede_set_num_queues(edev
);
3165 rc
= qede_alloc_fp_array(edev
);
3171 rc
= qede_alloc_mem_load(edev
);
3174 DP_INFO(edev
, "Allocated %d RSS queues on %d TC/s\n",
3175 QEDE_RSS_CNT(edev
), edev
->num_tc
);
3177 rc
= qede_set_real_num_queues(edev
);
3181 qede_napi_add_enable(edev
);
3182 DP_INFO(edev
, "Napi added and enabled\n");
3184 rc
= qede_setup_irqs(edev
);
3187 DP_INFO(edev
, "Setup IRQs succeeded\n");
3189 rc
= qede_start_queues(edev
);
3192 DP_INFO(edev
, "Start VPORT, RXQ and TXQ succeeded\n");
3194 /* Add primary mac and set Rx filters */
3195 ether_addr_copy(edev
->primary_mac
, edev
->ndev
->dev_addr
);
3197 mutex_lock(&edev
->qede_lock
);
3198 edev
->state
= QEDE_STATE_OPEN
;
3199 mutex_unlock(&edev
->qede_lock
);
3201 /* Program un-configured VLANs */
3202 qede_configure_vlan_filters(edev
);
3204 /* Ask for link-up using current configuration */
3205 memset(&link_params
, 0, sizeof(link_params
));
3206 link_params
.link_up
= true;
3207 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3209 /* Query whether link is already-up */
3210 memset(&link_output
, 0, sizeof(link_output
));
3211 edev
->ops
->common
->get_link(edev
->cdev
, &link_output
);
3212 qede_link_update(edev
, &link_output
);
3214 DP_INFO(edev
, "Ending successfully qede load\n");
3219 qede_sync_free_irqs(edev
);
3220 memset(&edev
->int_info
.msix_cnt
, 0, sizeof(struct qed_int_info
));
3222 qede_napi_disable_remove(edev
);
3224 qede_free_mem_load(edev
);
3226 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3227 qede_free_fp_array(edev
);
3233 void qede_reload(struct qede_dev
*edev
,
3234 void (*func
)(struct qede_dev
*, union qede_reload_args
*),
3235 union qede_reload_args
*args
)
3237 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3238 /* Call function handler to update parameters
3239 * needed for function load.
3244 qede_load(edev
, QEDE_LOAD_NORMAL
);
3246 mutex_lock(&edev
->qede_lock
);
3247 qede_config_rx_mode(edev
->ndev
);
3248 mutex_unlock(&edev
->qede_lock
);
3251 /* called with rtnl_lock */
3252 static int qede_open(struct net_device
*ndev
)
3254 struct qede_dev
*edev
= netdev_priv(ndev
);
3257 netif_carrier_off(ndev
);
3259 edev
->ops
->common
->set_power_state(edev
->cdev
, PCI_D0
);
3261 rc
= qede_load(edev
, QEDE_LOAD_NORMAL
);
3266 #ifdef CONFIG_QEDE_VXLAN
3267 vxlan_get_rx_port(ndev
);
3269 #ifdef CONFIG_QEDE_GENEVE
3270 geneve_get_rx_port(ndev
);
3275 static int qede_close(struct net_device
*ndev
)
3277 struct qede_dev
*edev
= netdev_priv(ndev
);
3279 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3284 static void qede_link_update(void *dev
, struct qed_link_output
*link
)
3286 struct qede_dev
*edev
= dev
;
3288 if (!netif_running(edev
->ndev
)) {
3289 DP_VERBOSE(edev
, NETIF_MSG_LINK
, "Interface is not running\n");
3293 if (link
->link_up
) {
3294 if (!netif_carrier_ok(edev
->ndev
)) {
3295 DP_NOTICE(edev
, "Link is up\n");
3296 netif_tx_start_all_queues(edev
->ndev
);
3297 netif_carrier_on(edev
->ndev
);
3300 if (netif_carrier_ok(edev
->ndev
)) {
3301 DP_NOTICE(edev
, "Link is down\n");
3302 netif_tx_disable(edev
->ndev
);
3303 netif_carrier_off(edev
->ndev
);
3308 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
)
3310 struct qede_dev
*edev
= netdev_priv(ndev
);
3311 struct sockaddr
*addr
= p
;
3314 ASSERT_RTNL(); /* @@@TBD To be removed */
3316 DP_INFO(edev
, "Set_mac_addr called\n");
3318 if (!is_valid_ether_addr(addr
->sa_data
)) {
3319 DP_NOTICE(edev
, "The MAC address is not valid\n");
3323 ether_addr_copy(ndev
->dev_addr
, addr
->sa_data
);
3325 if (!netif_running(ndev
)) {
3326 DP_NOTICE(edev
, "The device is currently down\n");
3330 /* Remove the previous primary mac */
3331 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3336 /* Add MAC filter according to the new unicast HW MAC address */
3337 ether_addr_copy(edev
->primary_mac
, ndev
->dev_addr
);
3338 return qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3343 qede_configure_mcast_filtering(struct net_device
*ndev
,
3344 enum qed_filter_rx_mode_type
*accept_flags
)
3346 struct qede_dev
*edev
= netdev_priv(ndev
);
3347 unsigned char *mc_macs
, *temp
;
3348 struct netdev_hw_addr
*ha
;
3349 int rc
= 0, mc_count
;
3352 size
= 64 * ETH_ALEN
;
3354 mc_macs
= kzalloc(size
, GFP_KERNEL
);
3357 "Failed to allocate memory for multicast MACs\n");
3364 /* Remove all previously configured MAC filters */
3365 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3370 netif_addr_lock_bh(ndev
);
3372 mc_count
= netdev_mc_count(ndev
);
3373 if (mc_count
< 64) {
3374 netdev_for_each_mc_addr(ha
, ndev
) {
3375 ether_addr_copy(temp
, ha
->addr
);
3380 netif_addr_unlock_bh(ndev
);
3382 /* Check for all multicast @@@TBD resource allocation */
3383 if ((ndev
->flags
& IFF_ALLMULTI
) ||
3385 if (*accept_flags
== QED_FILTER_RX_MODE_TYPE_REGULAR
)
3386 *accept_flags
= QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC
;
3388 /* Add all multicast MAC filters */
3389 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3398 static void qede_set_rx_mode(struct net_device
*ndev
)
3400 struct qede_dev
*edev
= netdev_priv(ndev
);
3402 DP_INFO(edev
, "qede_set_rx_mode called\n");
3404 if (edev
->state
!= QEDE_STATE_OPEN
) {
3406 "qede_set_rx_mode called while interface is down\n");
3408 set_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
);
3409 schedule_delayed_work(&edev
->sp_task
, 0);
3413 /* Must be called with qede_lock held */
3414 static void qede_config_rx_mode(struct net_device
*ndev
)
3416 enum qed_filter_rx_mode_type accept_flags
= QED_FILTER_TYPE_UCAST
;
3417 struct qede_dev
*edev
= netdev_priv(ndev
);
3418 struct qed_filter_params rx_mode
;
3419 unsigned char *uc_macs
, *temp
;
3420 struct netdev_hw_addr
*ha
;
3424 netif_addr_lock_bh(ndev
);
3426 uc_count
= netdev_uc_count(ndev
);
3427 size
= uc_count
* ETH_ALEN
;
3429 uc_macs
= kzalloc(size
, GFP_ATOMIC
);
3431 DP_NOTICE(edev
, "Failed to allocate memory for unicast MACs\n");
3432 netif_addr_unlock_bh(ndev
);
3437 netdev_for_each_uc_addr(ha
, ndev
) {
3438 ether_addr_copy(temp
, ha
->addr
);
3442 netif_addr_unlock_bh(ndev
);
3444 /* Configure the struct for the Rx mode */
3445 memset(&rx_mode
, 0, sizeof(struct qed_filter_params
));
3446 rx_mode
.type
= QED_FILTER_TYPE_RX_MODE
;
3448 /* Remove all previous unicast secondary macs and multicast macs
3449 * (configrue / leave the primary mac)
3451 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_REPLACE
,
3456 /* Check for promiscuous */
3457 if ((ndev
->flags
& IFF_PROMISC
) ||
3458 (uc_count
> 15)) { /* @@@TBD resource allocation - 1 */
3459 accept_flags
= QED_FILTER_RX_MODE_TYPE_PROMISC
;
3461 /* Add MAC filters according to the unicast secondary macs */
3465 for (i
= 0; i
< uc_count
; i
++) {
3466 rc
= qede_set_ucast_rx_mac(edev
,
3467 QED_FILTER_XCAST_TYPE_ADD
,
3475 rc
= qede_configure_mcast_filtering(ndev
, &accept_flags
);
3480 /* take care of VLAN mode */
3481 if (ndev
->flags
& IFF_PROMISC
) {
3482 qede_config_accept_any_vlan(edev
, true);
3483 } else if (!edev
->non_configured_vlans
) {
3484 /* It's possible that accept_any_vlan mode is set due to a
3485 * previous setting of IFF_PROMISC. If vlan credits are
3486 * sufficient, disable accept_any_vlan.
3488 qede_config_accept_any_vlan(edev
, false);
3491 rx_mode
.filter
.accept_flags
= accept_flags
;
3492 edev
->ops
->filter_config(edev
->cdev
, &rx_mode
);