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
))
318 if (skb
->encapsulation
)
327 static void qede_set_params_for_ipv6_ext(struct sk_buff
*skb
,
328 struct eth_tx_2nd_bd
*second_bd
,
329 struct eth_tx_3rd_bd
*third_bd
)
332 u16 bd2_bits1
= 0, bd2_bits2
= 0;
334 bd2_bits1
|= (1 << ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT
);
336 bd2_bits2
|= ((((u8
*)skb_transport_header(skb
) - skb
->data
) >> 1) &
337 ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK
)
338 << ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT
;
340 bd2_bits1
|= (ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH
<<
341 ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT
);
343 if (vlan_get_protocol(skb
) == htons(ETH_P_IPV6
))
344 l4_proto
= ipv6_hdr(skb
)->nexthdr
;
346 l4_proto
= ip_hdr(skb
)->protocol
;
348 if (l4_proto
== IPPROTO_UDP
)
349 bd2_bits1
|= 1 << ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT
;
352 third_bd
->data
.bitfields
|=
353 cpu_to_le16(((tcp_hdrlen(skb
) / 4) &
354 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK
) <<
355 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT
);
357 second_bd
->data
.bitfields1
= cpu_to_le16(bd2_bits1
);
358 second_bd
->data
.bitfields2
= cpu_to_le16(bd2_bits2
);
361 static int map_frag_to_bd(struct qede_dev
*edev
,
363 struct eth_tx_bd
*bd
)
367 /* Map skb non-linear frag data for DMA */
368 mapping
= skb_frag_dma_map(&edev
->pdev
->dev
, frag
, 0,
371 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
372 DP_NOTICE(edev
, "Unable to map frag - dropping packet\n");
376 /* Setup the data pointer of the frag data */
377 BD_SET_UNMAP_ADDR_LEN(bd
, mapping
, skb_frag_size(frag
));
382 static u16
qede_get_skb_hlen(struct sk_buff
*skb
, bool is_encap_pkt
)
385 return (skb_inner_transport_header(skb
) +
386 inner_tcp_hdrlen(skb
) - skb
->data
);
388 return (skb_transport_header(skb
) +
389 tcp_hdrlen(skb
) - skb
->data
);
392 /* +2 for 1st BD for headers and 2nd BD for headlen (if required) */
393 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
394 static bool qede_pkt_req_lin(struct qede_dev
*edev
, struct sk_buff
*skb
,
397 int allowed_frags
= ETH_TX_MAX_BDS_PER_NON_LSO_PACKET
- 1;
399 if (xmit_type
& XMIT_LSO
) {
402 hlen
= qede_get_skb_hlen(skb
, xmit_type
& XMIT_ENC
);
404 /* linear payload would require its own BD */
405 if (skb_headlen(skb
) > hlen
)
409 return (skb_shinfo(skb
)->nr_frags
> allowed_frags
);
413 /* Main transmit function */
415 netdev_tx_t
qede_start_xmit(struct sk_buff
*skb
,
416 struct net_device
*ndev
)
418 struct qede_dev
*edev
= netdev_priv(ndev
);
419 struct netdev_queue
*netdev_txq
;
420 struct qede_tx_queue
*txq
;
421 struct eth_tx_1st_bd
*first_bd
;
422 struct eth_tx_2nd_bd
*second_bd
= NULL
;
423 struct eth_tx_3rd_bd
*third_bd
= NULL
;
424 struct eth_tx_bd
*tx_data_bd
= NULL
;
428 int rc
, frag_idx
= 0, ipv6_ext
= 0;
434 /* Get tx-queue context and netdev index */
435 txq_index
= skb_get_queue_mapping(skb
);
436 WARN_ON(txq_index
>= QEDE_TSS_CNT(edev
));
437 txq
= QEDE_TX_QUEUE(edev
, txq_index
);
438 netdev_txq
= netdev_get_tx_queue(ndev
, txq_index
);
440 WARN_ON(qed_chain_get_elem_left(&txq
->tx_pbl
) <
441 (MAX_SKB_FRAGS
+ 1));
443 xmit_type
= qede_xmit_type(edev
, skb
, &ipv6_ext
);
445 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
446 if (qede_pkt_req_lin(edev
, skb
, xmit_type
)) {
447 if (skb_linearize(skb
)) {
449 "SKB linearization failed - silently dropping this SKB\n");
450 dev_kfree_skb_any(skb
);
456 /* Fill the entry in the SW ring and the BDs in the FW ring */
457 idx
= txq
->sw_tx_prod
& NUM_TX_BDS_MAX
;
458 txq
->sw_tx_ring
[idx
].skb
= skb
;
459 first_bd
= (struct eth_tx_1st_bd
*)
460 qed_chain_produce(&txq
->tx_pbl
);
461 memset(first_bd
, 0, sizeof(*first_bd
));
462 first_bd
->data
.bd_flags
.bitfields
=
463 1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT
;
465 /* Map skb linear data for DMA and set in the first BD */
466 mapping
= dma_map_single(&edev
->pdev
->dev
, skb
->data
,
467 skb_headlen(skb
), DMA_TO_DEVICE
);
468 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
469 DP_NOTICE(edev
, "SKB mapping failed\n");
470 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, 0, false);
474 BD_SET_UNMAP_ADDR_LEN(first_bd
, mapping
, skb_headlen(skb
));
476 /* In case there is IPv6 with extension headers or LSO we need 2nd and
479 if (unlikely((xmit_type
& XMIT_LSO
) | ipv6_ext
)) {
480 second_bd
= (struct eth_tx_2nd_bd
*)
481 qed_chain_produce(&txq
->tx_pbl
);
482 memset(second_bd
, 0, sizeof(*second_bd
));
485 third_bd
= (struct eth_tx_3rd_bd
*)
486 qed_chain_produce(&txq
->tx_pbl
);
487 memset(third_bd
, 0, sizeof(*third_bd
));
490 /* We need to fill in additional data in second_bd... */
491 tx_data_bd
= (struct eth_tx_bd
*)second_bd
;
494 if (skb_vlan_tag_present(skb
)) {
495 first_bd
->data
.vlan
= cpu_to_le16(skb_vlan_tag_get(skb
));
496 first_bd
->data
.bd_flags
.bitfields
|=
497 1 << ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT
;
500 /* Fill the parsing flags & params according to the requested offload */
501 if (xmit_type
& XMIT_L4_CSUM
) {
502 u16 temp
= 1 << ETH_TX_DATA_1ST_BD_TUNN_CFG_OVERRIDE_SHIFT
;
504 /* We don't re-calculate IP checksum as it is already done by
507 first_bd
->data
.bd_flags
.bitfields
|=
508 1 << ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT
;
510 if (xmit_type
& XMIT_ENC
) {
511 first_bd
->data
.bd_flags
.bitfields
|=
512 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT
;
514 /* In cases when OS doesn't indicate for inner offloads
515 * when packet is tunnelled, we need to override the HW
516 * tunnel configuration so that packets are treated as
517 * regular non tunnelled packets and no inner offloads
518 * are done by the hardware.
520 first_bd
->data
.bitfields
|= cpu_to_le16(temp
);
523 /* If the packet is IPv6 with extension header, indicate that
524 * to FW and pass few params, since the device cracker doesn't
525 * support parsing IPv6 with extension header/s.
527 if (unlikely(ipv6_ext
))
528 qede_set_params_for_ipv6_ext(skb
, second_bd
, third_bd
);
531 if (xmit_type
& XMIT_LSO
) {
532 first_bd
->data
.bd_flags
.bitfields
|=
533 (1 << ETH_TX_1ST_BD_FLAGS_LSO_SHIFT
);
534 third_bd
->data
.lso_mss
=
535 cpu_to_le16(skb_shinfo(skb
)->gso_size
);
537 if (unlikely(xmit_type
& XMIT_ENC
)) {
538 first_bd
->data
.bd_flags
.bitfields
|=
539 1 << ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT
;
540 hlen
= qede_get_skb_hlen(skb
, true);
542 first_bd
->data
.bd_flags
.bitfields
|=
543 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT
;
544 hlen
= qede_get_skb_hlen(skb
, false);
547 /* @@@TBD - if will not be removed need to check */
548 third_bd
->data
.bitfields
|=
549 cpu_to_le16((1 << ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT
));
551 /* Make life easier for FW guys who can't deal with header and
552 * data on same BD. If we need to split, use the second bd...
554 if (unlikely(skb_headlen(skb
) > hlen
)) {
555 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
556 "TSO split header size is %d (%x:%x)\n",
557 first_bd
->nbytes
, first_bd
->addr
.hi
,
560 mapping
= HILO_U64(le32_to_cpu(first_bd
->addr
.hi
),
561 le32_to_cpu(first_bd
->addr
.lo
)) +
564 BD_SET_UNMAP_ADDR_LEN(tx_data_bd
, mapping
,
565 le16_to_cpu(first_bd
->nbytes
) -
568 /* this marks the BD as one that has no
571 txq
->sw_tx_ring
[idx
].flags
|= QEDE_TSO_SPLIT_BD
;
573 first_bd
->nbytes
= cpu_to_le16(hlen
);
575 tx_data_bd
= (struct eth_tx_bd
*)third_bd
;
580 /* Handle fragmented skb */
581 /* special handle for frags inside 2nd and 3rd bds.. */
582 while (tx_data_bd
&& frag_idx
< skb_shinfo(skb
)->nr_frags
) {
583 rc
= map_frag_to_bd(edev
,
584 &skb_shinfo(skb
)->frags
[frag_idx
],
587 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, nbd
,
592 if (tx_data_bd
== (struct eth_tx_bd
*)second_bd
)
593 tx_data_bd
= (struct eth_tx_bd
*)third_bd
;
600 /* map last frags into 4th, 5th .... */
601 for (; frag_idx
< skb_shinfo(skb
)->nr_frags
; frag_idx
++, nbd
++) {
602 tx_data_bd
= (struct eth_tx_bd
*)
603 qed_chain_produce(&txq
->tx_pbl
);
605 memset(tx_data_bd
, 0, sizeof(*tx_data_bd
));
607 rc
= map_frag_to_bd(edev
,
608 &skb_shinfo(skb
)->frags
[frag_idx
],
611 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, nbd
,
617 /* update the first BD with the actual num BDs */
618 first_bd
->data
.nbds
= nbd
;
620 netdev_tx_sent_queue(netdev_txq
, skb
->len
);
622 skb_tx_timestamp(skb
);
624 /* Advance packet producer only before sending the packet since mapping
629 /* 'next page' entries are counted in the producer value */
630 txq
->tx_db
.data
.bd_prod
=
631 cpu_to_le16(qed_chain_get_prod_idx(&txq
->tx_pbl
));
633 /* wmb makes sure that the BDs data is updated before updating the
634 * producer, otherwise FW may read old data from the BDs.
638 writel(txq
->tx_db
.raw
, txq
->doorbell_addr
);
640 /* mmiowb is needed to synchronize doorbell writes from more than one
641 * processor. It guarantees that the write arrives to the device before
642 * the queue lock is released and another start_xmit is called (possibly
643 * on another CPU). Without this barrier, the next doorbell can bypass
644 * this doorbell. This is applicable to IA64/Altix systems.
648 if (unlikely(qed_chain_get_elem_left(&txq
->tx_pbl
)
649 < (MAX_SKB_FRAGS
+ 1))) {
650 netif_tx_stop_queue(netdev_txq
);
651 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
652 "Stop queue was called\n");
653 /* paired memory barrier is in qede_tx_int(), we have to keep
654 * ordering of set_bit() in netif_tx_stop_queue() and read of
659 if (qed_chain_get_elem_left(&txq
->tx_pbl
)
660 >= (MAX_SKB_FRAGS
+ 1) &&
661 (edev
->state
== QEDE_STATE_OPEN
)) {
662 netif_tx_wake_queue(netdev_txq
);
663 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
664 "Wake queue was called\n");
671 static int qede_txq_has_work(struct qede_tx_queue
*txq
)
675 /* Tell compiler that consumer and producer can change */
677 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
678 if (qed_chain_get_cons_idx(&txq
->tx_pbl
) == hw_bd_cons
+ 1)
681 return hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
);
684 static int qede_tx_int(struct qede_dev
*edev
,
685 struct qede_tx_queue
*txq
)
687 struct netdev_queue
*netdev_txq
;
689 unsigned int pkts_compl
= 0, bytes_compl
= 0;
692 netdev_txq
= netdev_get_tx_queue(edev
->ndev
, txq
->index
);
694 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
697 while (hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
)) {
700 rc
= qede_free_tx_pkt(edev
, txq
, &len
);
702 DP_NOTICE(edev
, "hw_bd_cons = %d, chain_cons=%d\n",
704 qed_chain_get_cons_idx(&txq
->tx_pbl
));
713 netdev_tx_completed_queue(netdev_txq
, pkts_compl
, bytes_compl
);
715 /* Need to make the tx_bd_cons update visible to start_xmit()
716 * before checking for netif_tx_queue_stopped(). Without the
717 * memory barrier, there is a small possibility that
718 * start_xmit() will miss it and cause the queue to be stopped
720 * On the other hand we need an rmb() here to ensure the proper
721 * ordering of bit testing in the following
722 * netif_tx_queue_stopped(txq) call.
726 if (unlikely(netif_tx_queue_stopped(netdev_txq
))) {
727 /* Taking tx_lock is needed to prevent reenabling the queue
728 * while it's empty. This could have happen if rx_action() gets
729 * suspended in qede_tx_int() after the condition before
730 * netif_tx_wake_queue(), while tx_action (qede_start_xmit()):
732 * stops the queue->sees fresh tx_bd_cons->releases the queue->
733 * sends some packets consuming the whole queue again->
737 __netif_tx_lock(netdev_txq
, smp_processor_id());
739 if ((netif_tx_queue_stopped(netdev_txq
)) &&
740 (edev
->state
== QEDE_STATE_OPEN
) &&
741 (qed_chain_get_elem_left(&txq
->tx_pbl
)
742 >= (MAX_SKB_FRAGS
+ 1))) {
743 netif_tx_wake_queue(netdev_txq
);
744 DP_VERBOSE(edev
, NETIF_MSG_TX_DONE
,
745 "Wake queue was called\n");
748 __netif_tx_unlock(netdev_txq
);
754 static bool qede_has_rx_work(struct qede_rx_queue
*rxq
)
756 u16 hw_comp_cons
, sw_comp_cons
;
758 /* Tell compiler that status block fields can change */
761 hw_comp_cons
= le16_to_cpu(*rxq
->hw_cons_ptr
);
762 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
764 return hw_comp_cons
!= sw_comp_cons
;
767 static bool qede_has_tx_work(struct qede_fastpath
*fp
)
771 for (tc
= 0; tc
< fp
->edev
->num_tc
; tc
++)
772 if (qede_txq_has_work(&fp
->txqs
[tc
]))
777 static inline void qede_rx_bd_ring_consume(struct qede_rx_queue
*rxq
)
779 qed_chain_consume(&rxq
->rx_bd_ring
);
783 /* This function reuses the buffer(from an offset) from
784 * consumer index to producer index in the bd ring
786 static inline void qede_reuse_page(struct qede_dev
*edev
,
787 struct qede_rx_queue
*rxq
,
788 struct sw_rx_data
*curr_cons
)
790 struct eth_rx_bd
*rx_bd_prod
= qed_chain_produce(&rxq
->rx_bd_ring
);
791 struct sw_rx_data
*curr_prod
;
792 dma_addr_t new_mapping
;
794 curr_prod
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
795 *curr_prod
= *curr_cons
;
797 new_mapping
= curr_prod
->mapping
+ curr_prod
->page_offset
;
799 rx_bd_prod
->addr
.hi
= cpu_to_le32(upper_32_bits(new_mapping
));
800 rx_bd_prod
->addr
.lo
= cpu_to_le32(lower_32_bits(new_mapping
));
803 curr_cons
->data
= NULL
;
806 /* In case of allocation failures reuse buffers
807 * from consumer index to produce buffers for firmware
809 static void qede_recycle_rx_bd_ring(struct qede_rx_queue
*rxq
,
810 struct qede_dev
*edev
, u8 count
)
812 struct sw_rx_data
*curr_cons
;
814 for (; count
> 0; count
--) {
815 curr_cons
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
];
816 qede_reuse_page(edev
, rxq
, curr_cons
);
817 qede_rx_bd_ring_consume(rxq
);
821 static inline int qede_realloc_rx_buffer(struct qede_dev
*edev
,
822 struct qede_rx_queue
*rxq
,
823 struct sw_rx_data
*curr_cons
)
825 /* Move to the next segment in the page */
826 curr_cons
->page_offset
+= rxq
->rx_buf_seg_size
;
828 if (curr_cons
->page_offset
== PAGE_SIZE
) {
829 if (unlikely(qede_alloc_rx_buffer(edev
, rxq
))) {
830 /* Since we failed to allocate new buffer
831 * current buffer can be used again.
833 curr_cons
->page_offset
-= rxq
->rx_buf_seg_size
;
838 dma_unmap_page(&edev
->pdev
->dev
, curr_cons
->mapping
,
839 PAGE_SIZE
, DMA_FROM_DEVICE
);
841 /* Increment refcount of the page as we don't want
842 * network stack to take the ownership of the page
843 * which can be recycled multiple times by the driver.
845 atomic_inc(&curr_cons
->data
->_count
);
846 qede_reuse_page(edev
, rxq
, curr_cons
);
852 static inline void qede_update_rx_prod(struct qede_dev
*edev
,
853 struct qede_rx_queue
*rxq
)
855 u16 bd_prod
= qed_chain_get_prod_idx(&rxq
->rx_bd_ring
);
856 u16 cqe_prod
= qed_chain_get_prod_idx(&rxq
->rx_comp_ring
);
857 struct eth_rx_prod_data rx_prods
= {0};
859 /* Update producers */
860 rx_prods
.bd_prod
= cpu_to_le16(bd_prod
);
861 rx_prods
.cqe_prod
= cpu_to_le16(cqe_prod
);
863 /* Make sure that the BD and SGE data is updated before updating the
864 * producers since FW might read the BD/SGE right after the producer
869 internal_ram_wr(rxq
->hw_rxq_prod_addr
, sizeof(rx_prods
),
872 /* mmiowb is needed to synchronize doorbell writes from more than one
873 * processor. It guarantees that the write arrives to the device before
874 * the napi lock is released and another qede_poll is called (possibly
875 * on another CPU). Without this barrier, the next doorbell can bypass
876 * this doorbell. This is applicable to IA64/Altix systems.
881 static u32
qede_get_rxhash(struct qede_dev
*edev
,
884 enum pkt_hash_types
*rxhash_type
)
886 enum rss_hash_type htype
;
888 htype
= GET_FIELD(bitfields
, ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE
);
890 if ((edev
->ndev
->features
& NETIF_F_RXHASH
) && htype
) {
891 *rxhash_type
= ((htype
== RSS_HASH_TYPE_IPV4
) ||
892 (htype
== RSS_HASH_TYPE_IPV6
)) ?
893 PKT_HASH_TYPE_L3
: PKT_HASH_TYPE_L4
;
894 return le32_to_cpu(rss_hash
);
896 *rxhash_type
= PKT_HASH_TYPE_NONE
;
900 static void qede_set_skb_csum(struct sk_buff
*skb
, u8 csum_flag
)
902 skb_checksum_none_assert(skb
);
904 if (csum_flag
& QEDE_CSUM_UNNECESSARY
)
905 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
907 if (csum_flag
& QEDE_TUNN_CSUM_UNNECESSARY
)
911 static inline void qede_skb_receive(struct qede_dev
*edev
,
912 struct qede_fastpath
*fp
,
917 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
),
920 napi_gro_receive(&fp
->napi
, skb
);
923 static void qede_set_gro_params(struct qede_dev
*edev
,
925 struct eth_fast_path_rx_tpa_start_cqe
*cqe
)
927 u16 parsing_flags
= le16_to_cpu(cqe
->pars_flags
.flags
);
929 if (((parsing_flags
>> PARSING_AND_ERR_FLAGS_L3TYPE_SHIFT
) &
930 PARSING_AND_ERR_FLAGS_L3TYPE_MASK
) == 2)
931 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV6
;
933 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV4
;
935 skb_shinfo(skb
)->gso_size
= __le16_to_cpu(cqe
->len_on_first_bd
) -
939 static int qede_fill_frag_skb(struct qede_dev
*edev
,
940 struct qede_rx_queue
*rxq
,
944 struct sw_rx_data
*current_bd
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
&
946 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[tpa_agg_index
];
947 struct sk_buff
*skb
= tpa_info
->skb
;
949 if (unlikely(tpa_info
->agg_state
!= QEDE_AGG_STATE_START
))
952 /* Add one frag and update the appropriate fields in the skb */
953 skb_fill_page_desc(skb
, tpa_info
->frag_id
++,
954 current_bd
->data
, current_bd
->page_offset
,
957 if (unlikely(qede_realloc_rx_buffer(edev
, rxq
, current_bd
))) {
958 /* Incr page ref count to reuse on allocation failure
959 * so that it doesn't get freed while freeing SKB.
961 atomic_inc(¤t_bd
->data
->_count
);
965 qed_chain_consume(&rxq
->rx_bd_ring
);
968 skb
->data_len
+= len_on_bd
;
969 skb
->truesize
+= rxq
->rx_buf_seg_size
;
970 skb
->len
+= len_on_bd
;
975 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
976 qede_recycle_rx_bd_ring(rxq
, edev
, 1);
980 static void qede_tpa_start(struct qede_dev
*edev
,
981 struct qede_rx_queue
*rxq
,
982 struct eth_fast_path_rx_tpa_start_cqe
*cqe
)
984 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[cqe
->tpa_agg_index
];
985 struct eth_rx_bd
*rx_bd_cons
= qed_chain_consume(&rxq
->rx_bd_ring
);
986 struct eth_rx_bd
*rx_bd_prod
= qed_chain_produce(&rxq
->rx_bd_ring
);
987 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
988 dma_addr_t mapping
= tpa_info
->replace_buf_mapping
;
989 struct sw_rx_data
*sw_rx_data_cons
;
990 struct sw_rx_data
*sw_rx_data_prod
;
991 enum pkt_hash_types rxhash_type
;
994 sw_rx_data_cons
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
];
995 sw_rx_data_prod
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
997 /* Use pre-allocated replacement buffer - we can't release the agg.
998 * start until its over and we don't want to risk allocation failing
999 * here, so re-allocate when aggregation will be over.
1001 dma_unmap_addr_set(sw_rx_data_prod
, mapping
,
1002 dma_unmap_addr(replace_buf
, mapping
));
1004 sw_rx_data_prod
->data
= replace_buf
->data
;
1005 rx_bd_prod
->addr
.hi
= cpu_to_le32(upper_32_bits(mapping
));
1006 rx_bd_prod
->addr
.lo
= cpu_to_le32(lower_32_bits(mapping
));
1007 sw_rx_data_prod
->page_offset
= replace_buf
->page_offset
;
1011 /* move partial skb from cons to pool (don't unmap yet)
1012 * save mapping, incase we drop the packet later on.
1014 tpa_info
->start_buf
= *sw_rx_data_cons
;
1015 mapping
= HILO_U64(le32_to_cpu(rx_bd_cons
->addr
.hi
),
1016 le32_to_cpu(rx_bd_cons
->addr
.lo
));
1018 tpa_info
->start_buf_mapping
= mapping
;
1021 /* set tpa state to start only if we are able to allocate skb
1022 * for this aggregation, otherwise mark as error and aggregation will
1025 tpa_info
->skb
= netdev_alloc_skb(edev
->ndev
,
1026 le16_to_cpu(cqe
->len_on_first_bd
));
1027 if (unlikely(!tpa_info
->skb
)) {
1028 DP_NOTICE(edev
, "Failed to allocate SKB for gro\n");
1029 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
1033 skb_put(tpa_info
->skb
, le16_to_cpu(cqe
->len_on_first_bd
));
1034 memcpy(&tpa_info
->start_cqe
, cqe
, sizeof(tpa_info
->start_cqe
));
1036 /* Start filling in the aggregation info */
1037 tpa_info
->frag_id
= 0;
1038 tpa_info
->agg_state
= QEDE_AGG_STATE_START
;
1040 rxhash
= qede_get_rxhash(edev
, cqe
->bitfields
,
1041 cqe
->rss_hash
, &rxhash_type
);
1042 skb_set_hash(tpa_info
->skb
, rxhash
, rxhash_type
);
1043 if ((le16_to_cpu(cqe
->pars_flags
.flags
) >>
1044 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT
) &
1045 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK
)
1046 tpa_info
->vlan_tag
= le16_to_cpu(cqe
->vlan_tag
);
1048 tpa_info
->vlan_tag
= 0;
1050 /* This is needed in order to enable forwarding support */
1051 qede_set_gro_params(edev
, tpa_info
->skb
, cqe
);
1053 cons_buf
: /* We still need to handle bd_len_list to consume buffers */
1054 if (likely(cqe
->ext_bd_len_list
[0]))
1055 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1056 le16_to_cpu(cqe
->ext_bd_len_list
[0]));
1058 if (unlikely(cqe
->ext_bd_len_list
[1])) {
1060 "Unlikely - got a TPA aggregation with more than one ext_bd_len_list entry in the TPA start\n");
1061 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
1066 static void qede_gro_ip_csum(struct sk_buff
*skb
)
1068 const struct iphdr
*iph
= ip_hdr(skb
);
1071 skb_set_transport_header(skb
, sizeof(struct iphdr
));
1074 th
->check
= ~tcp_v4_check(skb
->len
- skb_transport_offset(skb
),
1075 iph
->saddr
, iph
->daddr
, 0);
1077 tcp_gro_complete(skb
);
1080 static void qede_gro_ipv6_csum(struct sk_buff
*skb
)
1082 struct ipv6hdr
*iph
= ipv6_hdr(skb
);
1085 skb_set_transport_header(skb
, sizeof(struct ipv6hdr
));
1088 th
->check
= ~tcp_v6_check(skb
->len
- skb_transport_offset(skb
),
1089 &iph
->saddr
, &iph
->daddr
, 0);
1090 tcp_gro_complete(skb
);
1094 static void qede_gro_receive(struct qede_dev
*edev
,
1095 struct qede_fastpath
*fp
,
1096 struct sk_buff
*skb
,
1099 /* FW can send a single MTU sized packet from gro flow
1100 * due to aggregation timeout/last segment etc. which
1101 * is not expected to be a gro packet. If a skb has zero
1102 * frags then simply push it in the stack as non gso skb.
1104 if (unlikely(!skb
->data_len
)) {
1105 skb_shinfo(skb
)->gso_type
= 0;
1106 skb_shinfo(skb
)->gso_size
= 0;
1111 if (skb_shinfo(skb
)->gso_size
) {
1112 skb_set_network_header(skb
, 0);
1114 switch (skb
->protocol
) {
1115 case htons(ETH_P_IP
):
1116 qede_gro_ip_csum(skb
);
1118 case htons(ETH_P_IPV6
):
1119 qede_gro_ipv6_csum(skb
);
1123 "Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n",
1124 ntohs(skb
->protocol
));
1130 skb_record_rx_queue(skb
, fp
->rss_id
);
1131 qede_skb_receive(edev
, fp
, skb
, vlan_tag
);
1134 static inline void qede_tpa_cont(struct qede_dev
*edev
,
1135 struct qede_rx_queue
*rxq
,
1136 struct eth_fast_path_rx_tpa_cont_cqe
*cqe
)
1140 for (i
= 0; cqe
->len_list
[i
]; i
++)
1141 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1142 le16_to_cpu(cqe
->len_list
[i
]));
1144 if (unlikely(i
> 1))
1146 "Strange - TPA cont with more than a single len_list entry\n");
1149 static void qede_tpa_end(struct qede_dev
*edev
,
1150 struct qede_fastpath
*fp
,
1151 struct eth_fast_path_rx_tpa_end_cqe
*cqe
)
1153 struct qede_rx_queue
*rxq
= fp
->rxq
;
1154 struct qede_agg_info
*tpa_info
;
1155 struct sk_buff
*skb
;
1158 tpa_info
= &rxq
->tpa_info
[cqe
->tpa_agg_index
];
1159 skb
= tpa_info
->skb
;
1161 for (i
= 0; cqe
->len_list
[i
]; i
++)
1162 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1163 le16_to_cpu(cqe
->len_list
[i
]));
1164 if (unlikely(i
> 1))
1166 "Strange - TPA emd with more than a single len_list entry\n");
1168 if (unlikely(tpa_info
->agg_state
!= QEDE_AGG_STATE_START
))
1172 if (unlikely(cqe
->num_of_bds
!= tpa_info
->frag_id
+ 1))
1174 "Strange - TPA had %02x BDs, but SKB has only %d frags\n",
1175 cqe
->num_of_bds
, tpa_info
->frag_id
);
1176 if (unlikely(skb
->len
!= le16_to_cpu(cqe
->total_packet_len
)))
1178 "Strange - total packet len [cqe] is %4x but SKB has len %04x\n",
1179 le16_to_cpu(cqe
->total_packet_len
), skb
->len
);
1182 page_address(tpa_info
->start_buf
.data
) +
1183 tpa_info
->start_cqe
.placement_offset
+
1184 tpa_info
->start_buf
.page_offset
,
1185 le16_to_cpu(tpa_info
->start_cqe
.len_on_first_bd
));
1187 /* Recycle [mapped] start buffer for the next replacement */
1188 tpa_info
->replace_buf
= tpa_info
->start_buf
;
1189 tpa_info
->replace_buf_mapping
= tpa_info
->start_buf_mapping
;
1191 /* Finalize the SKB */
1192 skb
->protocol
= eth_type_trans(skb
, edev
->ndev
);
1193 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
1195 /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count
1196 * to skb_shinfo(skb)->gso_segs
1198 NAPI_GRO_CB(skb
)->count
= le16_to_cpu(cqe
->num_of_coalesced_segs
);
1200 qede_gro_receive(edev
, fp
, skb
, tpa_info
->vlan_tag
);
1202 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
1206 /* The BD starting the aggregation is still mapped; Re-use it for
1207 * future aggregations [as replacement buffer]
1209 memcpy(&tpa_info
->replace_buf
, &tpa_info
->start_buf
,
1210 sizeof(struct sw_rx_data
));
1211 tpa_info
->replace_buf_mapping
= tpa_info
->start_buf_mapping
;
1212 tpa_info
->start_buf
.data
= NULL
;
1213 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
1214 dev_kfree_skb_any(tpa_info
->skb
);
1215 tpa_info
->skb
= NULL
;
1218 static bool qede_tunn_exist(u16 flag
)
1220 return !!(flag
& (PARSING_AND_ERR_FLAGS_TUNNELEXIST_MASK
<<
1221 PARSING_AND_ERR_FLAGS_TUNNELEXIST_SHIFT
));
1224 static u8
qede_check_tunn_csum(u16 flag
)
1229 if (flag
& (PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_MASK
<<
1230 PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_SHIFT
))
1231 csum_flag
|= PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_MASK
<<
1232 PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_SHIFT
;
1234 if (flag
& (PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK
<<
1235 PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT
)) {
1236 csum_flag
|= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK
<<
1237 PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT
;
1238 tcsum
= QEDE_TUNN_CSUM_UNNECESSARY
;
1241 csum_flag
|= PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_MASK
<<
1242 PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_SHIFT
|
1243 PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK
<<
1244 PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT
;
1246 if (csum_flag
& flag
)
1247 return QEDE_CSUM_ERROR
;
1249 return QEDE_CSUM_UNNECESSARY
| tcsum
;
1252 static u8
qede_check_notunn_csum(u16 flag
)
1257 if (flag
& (PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK
<<
1258 PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT
)) {
1259 csum_flag
|= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK
<<
1260 PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT
;
1261 csum
= QEDE_CSUM_UNNECESSARY
;
1264 csum_flag
|= PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK
<<
1265 PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT
;
1267 if (csum_flag
& flag
)
1268 return QEDE_CSUM_ERROR
;
1273 static u8
qede_check_csum(u16 flag
)
1275 if (!qede_tunn_exist(flag
))
1276 return qede_check_notunn_csum(flag
);
1278 return qede_check_tunn_csum(flag
);
1281 static int qede_rx_int(struct qede_fastpath
*fp
, int budget
)
1283 struct qede_dev
*edev
= fp
->edev
;
1284 struct qede_rx_queue
*rxq
= fp
->rxq
;
1286 u16 hw_comp_cons
, sw_comp_cons
, sw_rx_index
, parse_flag
;
1290 hw_comp_cons
= le16_to_cpu(*rxq
->hw_cons_ptr
);
1291 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
1293 /* Memory barrier to prevent the CPU from doing speculative reads of CQE
1294 * / BD in the while-loop before reading hw_comp_cons. If the CQE is
1295 * read before it is written by FW, then FW writes CQE and SB, and then
1296 * the CPU reads the hw_comp_cons, it will use an old CQE.
1300 /* Loop to complete all indicated BDs */
1301 while (sw_comp_cons
!= hw_comp_cons
) {
1302 struct eth_fast_path_rx_reg_cqe
*fp_cqe
;
1303 enum pkt_hash_types rxhash_type
;
1304 enum eth_rx_cqe_type cqe_type
;
1305 struct sw_rx_data
*sw_rx_data
;
1306 union eth_rx_cqe
*cqe
;
1307 struct sk_buff
*skb
;
1313 /* Get the CQE from the completion ring */
1314 cqe
= (union eth_rx_cqe
*)
1315 qed_chain_consume(&rxq
->rx_comp_ring
);
1316 cqe_type
= cqe
->fast_path_regular
.type
;
1318 if (unlikely(cqe_type
== ETH_RX_CQE_TYPE_SLOW_PATH
)) {
1319 edev
->ops
->eth_cqe_completion(
1320 edev
->cdev
, fp
->rss_id
,
1321 (struct eth_slow_path_rx_cqe
*)cqe
);
1325 if (cqe_type
!= ETH_RX_CQE_TYPE_REGULAR
) {
1327 case ETH_RX_CQE_TYPE_TPA_START
:
1328 qede_tpa_start(edev
, rxq
,
1329 &cqe
->fast_path_tpa_start
);
1331 case ETH_RX_CQE_TYPE_TPA_CONT
:
1332 qede_tpa_cont(edev
, rxq
,
1333 &cqe
->fast_path_tpa_cont
);
1335 case ETH_RX_CQE_TYPE_TPA_END
:
1336 qede_tpa_end(edev
, fp
,
1337 &cqe
->fast_path_tpa_end
);
1344 /* Get the data from the SW ring */
1345 sw_rx_index
= rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
;
1346 sw_rx_data
= &rxq
->sw_rx_ring
[sw_rx_index
];
1347 data
= sw_rx_data
->data
;
1349 fp_cqe
= &cqe
->fast_path_regular
;
1350 len
= le16_to_cpu(fp_cqe
->len_on_first_bd
);
1351 pad
= fp_cqe
->placement_offset
;
1352 flags
= cqe
->fast_path_regular
.pars_flags
.flags
;
1354 /* If this is an error packet then drop it */
1355 parse_flag
= le16_to_cpu(flags
);
1357 csum_flag
= qede_check_csum(parse_flag
);
1358 if (unlikely(csum_flag
== QEDE_CSUM_ERROR
)) {
1360 "CQE in CONS = %u has error, flags = %x, dropping incoming packet\n",
1361 sw_comp_cons
, parse_flag
);
1362 rxq
->rx_hw_errors
++;
1363 qede_recycle_rx_bd_ring(rxq
, edev
, fp_cqe
->bd_num
);
1367 skb
= netdev_alloc_skb(edev
->ndev
, QEDE_RX_HDR_SIZE
);
1368 if (unlikely(!skb
)) {
1370 "Build_skb failed, dropping incoming packet\n");
1371 qede_recycle_rx_bd_ring(rxq
, edev
, fp_cqe
->bd_num
);
1372 rxq
->rx_alloc_errors
++;
1376 /* Copy data into SKB */
1377 if (len
+ pad
<= QEDE_RX_HDR_SIZE
) {
1378 memcpy(skb_put(skb
, len
),
1379 page_address(data
) + pad
+
1380 sw_rx_data
->page_offset
, len
);
1381 qede_reuse_page(edev
, rxq
, sw_rx_data
);
1383 struct skb_frag_struct
*frag
;
1384 unsigned int pull_len
;
1387 frag
= &skb_shinfo(skb
)->frags
[0];
1389 skb_add_rx_frag(skb
, skb_shinfo(skb
)->nr_frags
, data
,
1390 pad
+ sw_rx_data
->page_offset
,
1391 len
, rxq
->rx_buf_seg_size
);
1393 va
= skb_frag_address(frag
);
1394 pull_len
= eth_get_headlen(va
, QEDE_RX_HDR_SIZE
);
1396 /* Align the pull_len to optimize memcpy */
1397 memcpy(skb
->data
, va
, ALIGN(pull_len
, sizeof(long)));
1399 skb_frag_size_sub(frag
, pull_len
);
1400 frag
->page_offset
+= pull_len
;
1401 skb
->data_len
-= pull_len
;
1402 skb
->tail
+= pull_len
;
1404 if (unlikely(qede_realloc_rx_buffer(edev
, rxq
,
1406 DP_ERR(edev
, "Failed to allocate rx buffer\n");
1407 /* Incr page ref count to reuse on allocation
1408 * failure so that it doesn't get freed while
1412 atomic_inc(&sw_rx_data
->data
->_count
);
1413 rxq
->rx_alloc_errors
++;
1414 qede_recycle_rx_bd_ring(rxq
, edev
,
1416 dev_kfree_skb_any(skb
);
1421 qede_rx_bd_ring_consume(rxq
);
1423 if (fp_cqe
->bd_num
!= 1) {
1424 u16 pkt_len
= le16_to_cpu(fp_cqe
->pkt_len
);
1429 for (num_frags
= fp_cqe
->bd_num
- 1; num_frags
> 0;
1431 u16 cur_size
= pkt_len
> rxq
->rx_buf_size
?
1432 rxq
->rx_buf_size
: pkt_len
;
1433 if (unlikely(!cur_size
)) {
1435 "Still got %d BDs for mapping jumbo, but length became 0\n",
1437 qede_recycle_rx_bd_ring(rxq
, edev
,
1439 dev_kfree_skb_any(skb
);
1443 if (unlikely(qede_alloc_rx_buffer(edev
, rxq
))) {
1444 qede_recycle_rx_bd_ring(rxq
, edev
,
1446 dev_kfree_skb_any(skb
);
1450 sw_rx_index
= rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
;
1451 sw_rx_data
= &rxq
->sw_rx_ring
[sw_rx_index
];
1452 qede_rx_bd_ring_consume(rxq
);
1454 dma_unmap_page(&edev
->pdev
->dev
,
1455 sw_rx_data
->mapping
,
1456 PAGE_SIZE
, DMA_FROM_DEVICE
);
1458 skb_fill_page_desc(skb
,
1459 skb_shinfo(skb
)->nr_frags
++,
1460 sw_rx_data
->data
, 0,
1463 skb
->truesize
+= PAGE_SIZE
;
1464 skb
->data_len
+= cur_size
;
1465 skb
->len
+= cur_size
;
1466 pkt_len
-= cur_size
;
1469 if (unlikely(pkt_len
))
1471 "Mapped all BDs of jumbo, but still have %d bytes\n",
1475 skb
->protocol
= eth_type_trans(skb
, edev
->ndev
);
1477 rx_hash
= qede_get_rxhash(edev
, fp_cqe
->bitfields
,
1481 skb_set_hash(skb
, rx_hash
, rxhash_type
);
1483 qede_set_skb_csum(skb
, csum_flag
);
1485 skb_record_rx_queue(skb
, fp
->rss_id
);
1487 qede_skb_receive(edev
, fp
, skb
, le16_to_cpu(fp_cqe
->vlan_tag
));
1491 next_cqe
: /* don't consume bd rx buffer */
1492 qed_chain_recycle_consumed(&rxq
->rx_comp_ring
);
1493 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
1494 /* CR TPA - revisit how to handle budget in TPA perhaps
1497 if (rx_pkt
== budget
)
1499 } /* repeat while sw_comp_cons != hw_comp_cons... */
1501 /* Update producers */
1502 qede_update_rx_prod(edev
, rxq
);
1507 static int qede_poll(struct napi_struct
*napi
, int budget
)
1510 struct qede_fastpath
*fp
= container_of(napi
, struct qede_fastpath
,
1512 struct qede_dev
*edev
= fp
->edev
;
1517 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
1518 if (qede_txq_has_work(&fp
->txqs
[tc
]))
1519 qede_tx_int(edev
, &fp
->txqs
[tc
]);
1521 if (qede_has_rx_work(fp
->rxq
)) {
1522 work_done
+= qede_rx_int(fp
, budget
- work_done
);
1524 /* must not complete if we consumed full budget */
1525 if (work_done
>= budget
)
1529 /* Fall out from the NAPI loop if needed */
1530 if (!(qede_has_rx_work(fp
->rxq
) || qede_has_tx_work(fp
))) {
1531 qed_sb_update_sb_idx(fp
->sb_info
);
1532 /* *_has_*_work() reads the status block,
1533 * thus we need to ensure that status block indices
1534 * have been actually read (qed_sb_update_sb_idx)
1535 * prior to this check (*_has_*_work) so that
1536 * we won't write the "newer" value of the status block
1537 * to HW (if there was a DMA right after
1538 * qede_has_rx_work and if there is no rmb, the memory
1539 * reading (qed_sb_update_sb_idx) may be postponed
1540 * to right before *_ack_sb). In this case there
1541 * will never be another interrupt until there is
1542 * another update of the status block, while there
1543 * is still unhandled work.
1547 if (!(qede_has_rx_work(fp
->rxq
) ||
1548 qede_has_tx_work(fp
))) {
1549 napi_complete(napi
);
1550 /* Update and reenable interrupts */
1551 qed_sb_ack(fp
->sb_info
, IGU_INT_ENABLE
,
1561 static irqreturn_t
qede_msix_fp_int(int irq
, void *fp_cookie
)
1563 struct qede_fastpath
*fp
= fp_cookie
;
1565 qed_sb_ack(fp
->sb_info
, IGU_INT_DISABLE
, 0 /*do not update*/);
1567 napi_schedule_irqoff(&fp
->napi
);
1571 /* -------------------------------------------------------------------------
1573 * -------------------------------------------------------------------------
1576 static int qede_open(struct net_device
*ndev
);
1577 static int qede_close(struct net_device
*ndev
);
1578 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
);
1579 static void qede_set_rx_mode(struct net_device
*ndev
);
1580 static void qede_config_rx_mode(struct net_device
*ndev
);
1582 static int qede_set_ucast_rx_mac(struct qede_dev
*edev
,
1583 enum qed_filter_xcast_params_type opcode
,
1584 unsigned char mac
[ETH_ALEN
])
1586 struct qed_filter_params filter_cmd
;
1588 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1589 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1590 filter_cmd
.filter
.ucast
.type
= opcode
;
1591 filter_cmd
.filter
.ucast
.mac_valid
= 1;
1592 ether_addr_copy(filter_cmd
.filter
.ucast
.mac
, mac
);
1594 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1597 static int qede_set_ucast_rx_vlan(struct qede_dev
*edev
,
1598 enum qed_filter_xcast_params_type opcode
,
1601 struct qed_filter_params filter_cmd
;
1603 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1604 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1605 filter_cmd
.filter
.ucast
.type
= opcode
;
1606 filter_cmd
.filter
.ucast
.vlan_valid
= 1;
1607 filter_cmd
.filter
.ucast
.vlan
= vid
;
1609 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1612 void qede_fill_by_demand_stats(struct qede_dev
*edev
)
1614 struct qed_eth_stats stats
;
1616 edev
->ops
->get_vport_stats(edev
->cdev
, &stats
);
1617 edev
->stats
.no_buff_discards
= stats
.no_buff_discards
;
1618 edev
->stats
.rx_ucast_bytes
= stats
.rx_ucast_bytes
;
1619 edev
->stats
.rx_mcast_bytes
= stats
.rx_mcast_bytes
;
1620 edev
->stats
.rx_bcast_bytes
= stats
.rx_bcast_bytes
;
1621 edev
->stats
.rx_ucast_pkts
= stats
.rx_ucast_pkts
;
1622 edev
->stats
.rx_mcast_pkts
= stats
.rx_mcast_pkts
;
1623 edev
->stats
.rx_bcast_pkts
= stats
.rx_bcast_pkts
;
1624 edev
->stats
.mftag_filter_discards
= stats
.mftag_filter_discards
;
1625 edev
->stats
.mac_filter_discards
= stats
.mac_filter_discards
;
1627 edev
->stats
.tx_ucast_bytes
= stats
.tx_ucast_bytes
;
1628 edev
->stats
.tx_mcast_bytes
= stats
.tx_mcast_bytes
;
1629 edev
->stats
.tx_bcast_bytes
= stats
.tx_bcast_bytes
;
1630 edev
->stats
.tx_ucast_pkts
= stats
.tx_ucast_pkts
;
1631 edev
->stats
.tx_mcast_pkts
= stats
.tx_mcast_pkts
;
1632 edev
->stats
.tx_bcast_pkts
= stats
.tx_bcast_pkts
;
1633 edev
->stats
.tx_err_drop_pkts
= stats
.tx_err_drop_pkts
;
1634 edev
->stats
.coalesced_pkts
= stats
.tpa_coalesced_pkts
;
1635 edev
->stats
.coalesced_events
= stats
.tpa_coalesced_events
;
1636 edev
->stats
.coalesced_aborts_num
= stats
.tpa_aborts_num
;
1637 edev
->stats
.non_coalesced_pkts
= stats
.tpa_not_coalesced_pkts
;
1638 edev
->stats
.coalesced_bytes
= stats
.tpa_coalesced_bytes
;
1640 edev
->stats
.rx_64_byte_packets
= stats
.rx_64_byte_packets
;
1641 edev
->stats
.rx_127_byte_packets
= stats
.rx_127_byte_packets
;
1642 edev
->stats
.rx_255_byte_packets
= stats
.rx_255_byte_packets
;
1643 edev
->stats
.rx_511_byte_packets
= stats
.rx_511_byte_packets
;
1644 edev
->stats
.rx_1023_byte_packets
= stats
.rx_1023_byte_packets
;
1645 edev
->stats
.rx_1518_byte_packets
= stats
.rx_1518_byte_packets
;
1646 edev
->stats
.rx_1522_byte_packets
= stats
.rx_1522_byte_packets
;
1647 edev
->stats
.rx_2047_byte_packets
= stats
.rx_2047_byte_packets
;
1648 edev
->stats
.rx_4095_byte_packets
= stats
.rx_4095_byte_packets
;
1649 edev
->stats
.rx_9216_byte_packets
= stats
.rx_9216_byte_packets
;
1650 edev
->stats
.rx_16383_byte_packets
= stats
.rx_16383_byte_packets
;
1651 edev
->stats
.rx_crc_errors
= stats
.rx_crc_errors
;
1652 edev
->stats
.rx_mac_crtl_frames
= stats
.rx_mac_crtl_frames
;
1653 edev
->stats
.rx_pause_frames
= stats
.rx_pause_frames
;
1654 edev
->stats
.rx_pfc_frames
= stats
.rx_pfc_frames
;
1655 edev
->stats
.rx_align_errors
= stats
.rx_align_errors
;
1656 edev
->stats
.rx_carrier_errors
= stats
.rx_carrier_errors
;
1657 edev
->stats
.rx_oversize_packets
= stats
.rx_oversize_packets
;
1658 edev
->stats
.rx_jabbers
= stats
.rx_jabbers
;
1659 edev
->stats
.rx_undersize_packets
= stats
.rx_undersize_packets
;
1660 edev
->stats
.rx_fragments
= stats
.rx_fragments
;
1661 edev
->stats
.tx_64_byte_packets
= stats
.tx_64_byte_packets
;
1662 edev
->stats
.tx_65_to_127_byte_packets
= stats
.tx_65_to_127_byte_packets
;
1663 edev
->stats
.tx_128_to_255_byte_packets
=
1664 stats
.tx_128_to_255_byte_packets
;
1665 edev
->stats
.tx_256_to_511_byte_packets
=
1666 stats
.tx_256_to_511_byte_packets
;
1667 edev
->stats
.tx_512_to_1023_byte_packets
=
1668 stats
.tx_512_to_1023_byte_packets
;
1669 edev
->stats
.tx_1024_to_1518_byte_packets
=
1670 stats
.tx_1024_to_1518_byte_packets
;
1671 edev
->stats
.tx_1519_to_2047_byte_packets
=
1672 stats
.tx_1519_to_2047_byte_packets
;
1673 edev
->stats
.tx_2048_to_4095_byte_packets
=
1674 stats
.tx_2048_to_4095_byte_packets
;
1675 edev
->stats
.tx_4096_to_9216_byte_packets
=
1676 stats
.tx_4096_to_9216_byte_packets
;
1677 edev
->stats
.tx_9217_to_16383_byte_packets
=
1678 stats
.tx_9217_to_16383_byte_packets
;
1679 edev
->stats
.tx_pause_frames
= stats
.tx_pause_frames
;
1680 edev
->stats
.tx_pfc_frames
= stats
.tx_pfc_frames
;
1681 edev
->stats
.tx_lpi_entry_count
= stats
.tx_lpi_entry_count
;
1682 edev
->stats
.tx_total_collisions
= stats
.tx_total_collisions
;
1683 edev
->stats
.brb_truncates
= stats
.brb_truncates
;
1684 edev
->stats
.brb_discards
= stats
.brb_discards
;
1685 edev
->stats
.tx_mac_ctrl_frames
= stats
.tx_mac_ctrl_frames
;
1688 static struct rtnl_link_stats64
*qede_get_stats64(
1689 struct net_device
*dev
,
1690 struct rtnl_link_stats64
*stats
)
1692 struct qede_dev
*edev
= netdev_priv(dev
);
1694 qede_fill_by_demand_stats(edev
);
1696 stats
->rx_packets
= edev
->stats
.rx_ucast_pkts
+
1697 edev
->stats
.rx_mcast_pkts
+
1698 edev
->stats
.rx_bcast_pkts
;
1699 stats
->tx_packets
= edev
->stats
.tx_ucast_pkts
+
1700 edev
->stats
.tx_mcast_pkts
+
1701 edev
->stats
.tx_bcast_pkts
;
1703 stats
->rx_bytes
= edev
->stats
.rx_ucast_bytes
+
1704 edev
->stats
.rx_mcast_bytes
+
1705 edev
->stats
.rx_bcast_bytes
;
1707 stats
->tx_bytes
= edev
->stats
.tx_ucast_bytes
+
1708 edev
->stats
.tx_mcast_bytes
+
1709 edev
->stats
.tx_bcast_bytes
;
1711 stats
->tx_errors
= edev
->stats
.tx_err_drop_pkts
;
1712 stats
->multicast
= edev
->stats
.rx_mcast_pkts
+
1713 edev
->stats
.rx_bcast_pkts
;
1715 stats
->rx_fifo_errors
= edev
->stats
.no_buff_discards
;
1717 stats
->collisions
= edev
->stats
.tx_total_collisions
;
1718 stats
->rx_crc_errors
= edev
->stats
.rx_crc_errors
;
1719 stats
->rx_frame_errors
= edev
->stats
.rx_align_errors
;
1724 static void qede_config_accept_any_vlan(struct qede_dev
*edev
, bool action
)
1726 struct qed_update_vport_params params
;
1729 /* Proceed only if action actually needs to be performed */
1730 if (edev
->accept_any_vlan
== action
)
1733 memset(¶ms
, 0, sizeof(params
));
1735 params
.vport_id
= 0;
1736 params
.accept_any_vlan
= action
;
1737 params
.update_accept_any_vlan_flg
= 1;
1739 rc
= edev
->ops
->vport_update(edev
->cdev
, ¶ms
);
1741 DP_ERR(edev
, "Failed to %s accept-any-vlan\n",
1742 action
? "enable" : "disable");
1744 DP_INFO(edev
, "%s accept-any-vlan\n",
1745 action
? "enabled" : "disabled");
1746 edev
->accept_any_vlan
= action
;
1750 static int qede_vlan_rx_add_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1752 struct qede_dev
*edev
= netdev_priv(dev
);
1753 struct qede_vlan
*vlan
, *tmp
;
1756 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan 0x%04x\n", vid
);
1758 vlan
= kzalloc(sizeof(*vlan
), GFP_KERNEL
);
1760 DP_INFO(edev
, "Failed to allocate struct for vlan\n");
1763 INIT_LIST_HEAD(&vlan
->list
);
1765 vlan
->configured
= false;
1767 /* Verify vlan isn't already configured */
1768 list_for_each_entry(tmp
, &edev
->vlan_list
, list
) {
1769 if (tmp
->vid
== vlan
->vid
) {
1770 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
1771 "vlan already configured\n");
1777 /* If interface is down, cache this VLAN ID and return */
1778 if (edev
->state
!= QEDE_STATE_OPEN
) {
1779 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
1780 "Interface is down, VLAN %d will be configured when interface is up\n",
1783 edev
->non_configured_vlans
++;
1784 list_add(&vlan
->list
, &edev
->vlan_list
);
1789 /* Check for the filter limit.
1790 * Note - vlan0 has a reserved filter and can be added without
1791 * worrying about quota
1793 if ((edev
->configured_vlans
< edev
->dev_info
.num_vlan_filters
) ||
1795 rc
= qede_set_ucast_rx_vlan(edev
,
1796 QED_FILTER_XCAST_TYPE_ADD
,
1799 DP_ERR(edev
, "Failed to configure VLAN %d\n",
1804 vlan
->configured
= true;
1806 /* vlan0 filter isn't consuming out of our quota */
1808 edev
->configured_vlans
++;
1810 /* Out of quota; Activate accept-any-VLAN mode */
1811 if (!edev
->non_configured_vlans
)
1812 qede_config_accept_any_vlan(edev
, true);
1814 edev
->non_configured_vlans
++;
1817 list_add(&vlan
->list
, &edev
->vlan_list
);
1822 static void qede_del_vlan_from_list(struct qede_dev
*edev
,
1823 struct qede_vlan
*vlan
)
1825 /* vlan0 filter isn't consuming out of our quota */
1826 if (vlan
->vid
!= 0) {
1827 if (vlan
->configured
)
1828 edev
->configured_vlans
--;
1830 edev
->non_configured_vlans
--;
1833 list_del(&vlan
->list
);
1837 static int qede_configure_vlan_filters(struct qede_dev
*edev
)
1839 int rc
= 0, real_rc
= 0, accept_any_vlan
= 0;
1840 struct qed_dev_eth_info
*dev_info
;
1841 struct qede_vlan
*vlan
= NULL
;
1843 if (list_empty(&edev
->vlan_list
))
1846 dev_info
= &edev
->dev_info
;
1848 /* Configure non-configured vlans */
1849 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
1850 if (vlan
->configured
)
1853 /* We have used all our credits, now enable accept_any_vlan */
1854 if ((vlan
->vid
!= 0) &&
1855 (edev
->configured_vlans
== dev_info
->num_vlan_filters
)) {
1856 accept_any_vlan
= 1;
1860 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan %d\n", vlan
->vid
);
1862 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_ADD
,
1865 DP_ERR(edev
, "Failed to configure VLAN %u\n",
1871 vlan
->configured
= true;
1872 /* vlan0 filter doesn't consume our VLAN filter's quota */
1873 if (vlan
->vid
!= 0) {
1874 edev
->non_configured_vlans
--;
1875 edev
->configured_vlans
++;
1879 /* enable accept_any_vlan mode if we have more VLANs than credits,
1880 * or remove accept_any_vlan mode if we've actually removed
1881 * a non-configured vlan, and all remaining vlans are truly configured.
1884 if (accept_any_vlan
)
1885 qede_config_accept_any_vlan(edev
, true);
1886 else if (!edev
->non_configured_vlans
)
1887 qede_config_accept_any_vlan(edev
, false);
1892 static int qede_vlan_rx_kill_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1894 struct qede_dev
*edev
= netdev_priv(dev
);
1895 struct qede_vlan
*vlan
= NULL
;
1898 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
, "Removing vlan 0x%04x\n", vid
);
1900 /* Find whether entry exists */
1901 list_for_each_entry(vlan
, &edev
->vlan_list
, list
)
1902 if (vlan
->vid
== vid
)
1905 if (!vlan
|| (vlan
->vid
!= vid
)) {
1906 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
1907 "Vlan isn't configured\n");
1911 if (edev
->state
!= QEDE_STATE_OPEN
) {
1912 /* As interface is already down, we don't have a VPORT
1913 * instance to remove vlan filter. So just update vlan list
1915 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
1916 "Interface is down, removing VLAN from list only\n");
1917 qede_del_vlan_from_list(edev
, vlan
);
1922 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_DEL
, vid
);
1924 DP_ERR(edev
, "Failed to remove VLAN %d\n", vid
);
1928 qede_del_vlan_from_list(edev
, vlan
);
1930 /* We have removed a VLAN - try to see if we can
1931 * configure non-configured VLAN from the list.
1933 rc
= qede_configure_vlan_filters(edev
);
1938 static void qede_vlan_mark_nonconfigured(struct qede_dev
*edev
)
1940 struct qede_vlan
*vlan
= NULL
;
1942 if (list_empty(&edev
->vlan_list
))
1945 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
1946 if (!vlan
->configured
)
1949 vlan
->configured
= false;
1951 /* vlan0 filter isn't consuming out of our quota */
1952 if (vlan
->vid
!= 0) {
1953 edev
->non_configured_vlans
++;
1954 edev
->configured_vlans
--;
1957 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
1958 "marked vlan %d as non-configured\n",
1962 edev
->accept_any_vlan
= false;
1965 #ifdef CONFIG_QEDE_VXLAN
1966 static void qede_add_vxlan_port(struct net_device
*dev
,
1967 sa_family_t sa_family
, __be16 port
)
1969 struct qede_dev
*edev
= netdev_priv(dev
);
1970 u16 t_port
= ntohs(port
);
1972 if (edev
->vxlan_dst_port
)
1975 edev
->vxlan_dst_port
= t_port
;
1977 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added vxlan port=%d", t_port
);
1979 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
1980 schedule_delayed_work(&edev
->sp_task
, 0);
1983 static void qede_del_vxlan_port(struct net_device
*dev
,
1984 sa_family_t sa_family
, __be16 port
)
1986 struct qede_dev
*edev
= netdev_priv(dev
);
1987 u16 t_port
= ntohs(port
);
1989 if (t_port
!= edev
->vxlan_dst_port
)
1992 edev
->vxlan_dst_port
= 0;
1994 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted vxlan port=%d", t_port
);
1996 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
1997 schedule_delayed_work(&edev
->sp_task
, 0);
2001 #ifdef CONFIG_QEDE_GENEVE
2002 static void qede_add_geneve_port(struct net_device
*dev
,
2003 sa_family_t sa_family
, __be16 port
)
2005 struct qede_dev
*edev
= netdev_priv(dev
);
2006 u16 t_port
= ntohs(port
);
2008 if (edev
->geneve_dst_port
)
2011 edev
->geneve_dst_port
= t_port
;
2013 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added geneve port=%d", t_port
);
2014 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
2015 schedule_delayed_work(&edev
->sp_task
, 0);
2018 static void qede_del_geneve_port(struct net_device
*dev
,
2019 sa_family_t sa_family
, __be16 port
)
2021 struct qede_dev
*edev
= netdev_priv(dev
);
2022 u16 t_port
= ntohs(port
);
2024 if (t_port
!= edev
->geneve_dst_port
)
2027 edev
->geneve_dst_port
= 0;
2029 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted geneve port=%d", t_port
);
2030 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
2031 schedule_delayed_work(&edev
->sp_task
, 0);
2035 static const struct net_device_ops qede_netdev_ops
= {
2036 .ndo_open
= qede_open
,
2037 .ndo_stop
= qede_close
,
2038 .ndo_start_xmit
= qede_start_xmit
,
2039 .ndo_set_rx_mode
= qede_set_rx_mode
,
2040 .ndo_set_mac_address
= qede_set_mac_addr
,
2041 .ndo_validate_addr
= eth_validate_addr
,
2042 .ndo_change_mtu
= qede_change_mtu
,
2043 .ndo_vlan_rx_add_vid
= qede_vlan_rx_add_vid
,
2044 .ndo_vlan_rx_kill_vid
= qede_vlan_rx_kill_vid
,
2045 .ndo_get_stats64
= qede_get_stats64
,
2046 #ifdef CONFIG_QEDE_VXLAN
2047 .ndo_add_vxlan_port
= qede_add_vxlan_port
,
2048 .ndo_del_vxlan_port
= qede_del_vxlan_port
,
2050 #ifdef CONFIG_QEDE_GENEVE
2051 .ndo_add_geneve_port
= qede_add_geneve_port
,
2052 .ndo_del_geneve_port
= qede_del_geneve_port
,
2056 /* -------------------------------------------------------------------------
2057 * START OF PROBE / REMOVE
2058 * -------------------------------------------------------------------------
2061 static struct qede_dev
*qede_alloc_etherdev(struct qed_dev
*cdev
,
2062 struct pci_dev
*pdev
,
2063 struct qed_dev_eth_info
*info
,
2067 struct net_device
*ndev
;
2068 struct qede_dev
*edev
;
2070 ndev
= alloc_etherdev_mqs(sizeof(*edev
),
2074 pr_err("etherdev allocation failed\n");
2078 edev
= netdev_priv(ndev
);
2082 edev
->dp_module
= dp_module
;
2083 edev
->dp_level
= dp_level
;
2084 edev
->ops
= qed_ops
;
2085 edev
->q_num_rx_buffers
= NUM_RX_BDS_DEF
;
2086 edev
->q_num_tx_buffers
= NUM_TX_BDS_DEF
;
2088 DP_INFO(edev
, "Allocated netdev with 64 tx queues and 64 rx queues\n");
2090 SET_NETDEV_DEV(ndev
, &pdev
->dev
);
2092 memset(&edev
->stats
, 0, sizeof(edev
->stats
));
2093 memcpy(&edev
->dev_info
, info
, sizeof(*info
));
2095 edev
->num_tc
= edev
->dev_info
.num_tc
;
2097 INIT_LIST_HEAD(&edev
->vlan_list
);
2102 static void qede_init_ndev(struct qede_dev
*edev
)
2104 struct net_device
*ndev
= edev
->ndev
;
2105 struct pci_dev
*pdev
= edev
->pdev
;
2108 pci_set_drvdata(pdev
, ndev
);
2110 ndev
->mem_start
= edev
->dev_info
.common
.pci_mem_start
;
2111 ndev
->base_addr
= ndev
->mem_start
;
2112 ndev
->mem_end
= edev
->dev_info
.common
.pci_mem_end
;
2113 ndev
->irq
= edev
->dev_info
.common
.pci_irq
;
2115 ndev
->watchdog_timeo
= TX_TIMEOUT
;
2117 ndev
->netdev_ops
= &qede_netdev_ops
;
2119 qede_set_ethtool_ops(ndev
);
2121 /* user-changeble features */
2122 hw_features
= NETIF_F_GRO
| NETIF_F_SG
|
2123 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2124 NETIF_F_TSO
| NETIF_F_TSO6
;
2127 hw_features
|= NETIF_F_GSO_GRE
| NETIF_F_GSO_UDP_TUNNEL
|
2129 ndev
->hw_enc_features
= NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2130 NETIF_F_SG
| NETIF_F_TSO
| NETIF_F_TSO_ECN
|
2131 NETIF_F_TSO6
| NETIF_F_GSO_GRE
|
2132 NETIF_F_GSO_UDP_TUNNEL
| NETIF_F_RXCSUM
;
2134 ndev
->vlan_features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
2136 ndev
->features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
2137 NETIF_F_HW_VLAN_CTAG_RX
| NETIF_F_HIGHDMA
|
2138 NETIF_F_HW_VLAN_CTAG_FILTER
| NETIF_F_HW_VLAN_CTAG_TX
;
2140 ndev
->hw_features
= hw_features
;
2142 /* Set network device HW mac */
2143 ether_addr_copy(edev
->ndev
->dev_addr
, edev
->dev_info
.common
.hw_mac
);
2146 /* This function converts from 32b param to two params of level and module
2147 * Input 32b decoding:
2148 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
2149 * 'happy' flow, e.g. memory allocation failed.
2150 * b30 - enable all INFO prints. INFO prints are for major steps in the flow
2151 * and provide important parameters.
2152 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
2153 * module. VERBOSE prints are for tracking the specific flow in low level.
2155 * Notice that the level should be that of the lowest required logs.
2157 void qede_config_debug(uint debug
, u32
*p_dp_module
, u8
*p_dp_level
)
2159 *p_dp_level
= QED_LEVEL_NOTICE
;
2162 if (debug
& QED_LOG_VERBOSE_MASK
) {
2163 *p_dp_level
= QED_LEVEL_VERBOSE
;
2164 *p_dp_module
= (debug
& 0x3FFFFFFF);
2165 } else if (debug
& QED_LOG_INFO_MASK
) {
2166 *p_dp_level
= QED_LEVEL_INFO
;
2167 } else if (debug
& QED_LOG_NOTICE_MASK
) {
2168 *p_dp_level
= QED_LEVEL_NOTICE
;
2172 static void qede_free_fp_array(struct qede_dev
*edev
)
2174 if (edev
->fp_array
) {
2175 struct qede_fastpath
*fp
;
2179 fp
= &edev
->fp_array
[i
];
2185 kfree(edev
->fp_array
);
2190 static int qede_alloc_fp_array(struct qede_dev
*edev
)
2192 struct qede_fastpath
*fp
;
2195 edev
->fp_array
= kcalloc(QEDE_RSS_CNT(edev
),
2196 sizeof(*edev
->fp_array
), GFP_KERNEL
);
2197 if (!edev
->fp_array
) {
2198 DP_NOTICE(edev
, "fp array allocation failed\n");
2203 fp
= &edev
->fp_array
[i
];
2205 fp
->sb_info
= kcalloc(1, sizeof(*fp
->sb_info
), GFP_KERNEL
);
2207 DP_NOTICE(edev
, "sb info struct allocation failed\n");
2211 fp
->rxq
= kcalloc(1, sizeof(*fp
->rxq
), GFP_KERNEL
);
2213 DP_NOTICE(edev
, "RXQ struct allocation failed\n");
2217 fp
->txqs
= kcalloc(edev
->num_tc
, sizeof(*fp
->txqs
), GFP_KERNEL
);
2219 DP_NOTICE(edev
, "TXQ array allocation failed\n");
2226 qede_free_fp_array(edev
);
2230 static void qede_sp_task(struct work_struct
*work
)
2232 struct qede_dev
*edev
= container_of(work
, struct qede_dev
,
2234 struct qed_dev
*cdev
= edev
->cdev
;
2236 mutex_lock(&edev
->qede_lock
);
2238 if (edev
->state
== QEDE_STATE_OPEN
) {
2239 if (test_and_clear_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
))
2240 qede_config_rx_mode(edev
->ndev
);
2243 if (test_and_clear_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
)) {
2244 struct qed_tunn_params tunn_params
;
2246 memset(&tunn_params
, 0, sizeof(tunn_params
));
2247 tunn_params
.update_vxlan_port
= 1;
2248 tunn_params
.vxlan_port
= edev
->vxlan_dst_port
;
2249 qed_ops
->tunn_config(cdev
, &tunn_params
);
2252 if (test_and_clear_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
)) {
2253 struct qed_tunn_params tunn_params
;
2255 memset(&tunn_params
, 0, sizeof(tunn_params
));
2256 tunn_params
.update_geneve_port
= 1;
2257 tunn_params
.geneve_port
= edev
->geneve_dst_port
;
2258 qed_ops
->tunn_config(cdev
, &tunn_params
);
2261 mutex_unlock(&edev
->qede_lock
);
2264 static void qede_update_pf_params(struct qed_dev
*cdev
)
2266 struct qed_pf_params pf_params
;
2269 memset(&pf_params
, 0, sizeof(struct qed_pf_params
));
2270 pf_params
.eth_pf_params
.num_cons
= 32;
2271 qed_ops
->common
->update_pf_params(cdev
, &pf_params
);
2274 enum qede_probe_mode
{
2278 static int __qede_probe(struct pci_dev
*pdev
, u32 dp_module
, u8 dp_level
,
2279 enum qede_probe_mode mode
)
2281 struct qed_slowpath_params params
;
2282 struct qed_dev_eth_info dev_info
;
2283 struct qede_dev
*edev
;
2284 struct qed_dev
*cdev
;
2287 if (unlikely(dp_level
& QED_LEVEL_INFO
))
2288 pr_notice("Starting qede probe\n");
2290 cdev
= qed_ops
->common
->probe(pdev
, QED_PROTOCOL_ETH
,
2291 dp_module
, dp_level
);
2297 qede_update_pf_params(cdev
);
2299 /* Start the Slowpath-process */
2300 memset(¶ms
, 0, sizeof(struct qed_slowpath_params
));
2301 params
.int_mode
= QED_INT_MODE_MSIX
;
2302 params
.drv_major
= QEDE_MAJOR_VERSION
;
2303 params
.drv_minor
= QEDE_MINOR_VERSION
;
2304 params
.drv_rev
= QEDE_REVISION_VERSION
;
2305 params
.drv_eng
= QEDE_ENGINEERING_VERSION
;
2306 strlcpy(params
.name
, "qede LAN", QED_DRV_VER_STR_SIZE
);
2307 rc
= qed_ops
->common
->slowpath_start(cdev
, ¶ms
);
2309 pr_notice("Cannot start slowpath\n");
2313 /* Learn information crucial for qede to progress */
2314 rc
= qed_ops
->fill_dev_info(cdev
, &dev_info
);
2318 edev
= qede_alloc_etherdev(cdev
, pdev
, &dev_info
, dp_module
,
2325 qede_init_ndev(edev
);
2327 rc
= register_netdev(edev
->ndev
);
2329 DP_NOTICE(edev
, "Cannot register net-device\n");
2333 edev
->ops
->common
->set_id(cdev
, edev
->ndev
->name
, DRV_MODULE_VERSION
);
2335 edev
->ops
->register_ops(cdev
, &qede_ll_ops
, edev
);
2337 INIT_DELAYED_WORK(&edev
->sp_task
, qede_sp_task
);
2338 mutex_init(&edev
->qede_lock
);
2340 DP_INFO(edev
, "Ending successfully qede probe\n");
2345 free_netdev(edev
->ndev
);
2347 qed_ops
->common
->slowpath_stop(cdev
);
2349 qed_ops
->common
->remove(cdev
);
2354 static int qede_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
2359 qede_config_debug(debug
, &dp_module
, &dp_level
);
2361 return __qede_probe(pdev
, dp_module
, dp_level
,
2365 enum qede_remove_mode
{
2369 static void __qede_remove(struct pci_dev
*pdev
, enum qede_remove_mode mode
)
2371 struct net_device
*ndev
= pci_get_drvdata(pdev
);
2372 struct qede_dev
*edev
= netdev_priv(ndev
);
2373 struct qed_dev
*cdev
= edev
->cdev
;
2375 DP_INFO(edev
, "Starting qede_remove\n");
2377 cancel_delayed_work_sync(&edev
->sp_task
);
2378 unregister_netdev(ndev
);
2380 edev
->ops
->common
->set_power_state(cdev
, PCI_D0
);
2382 pci_set_drvdata(pdev
, NULL
);
2386 /* Use global ops since we've freed edev */
2387 qed_ops
->common
->slowpath_stop(cdev
);
2388 qed_ops
->common
->remove(cdev
);
2390 pr_notice("Ending successfully qede_remove\n");
2393 static void qede_remove(struct pci_dev
*pdev
)
2395 __qede_remove(pdev
, QEDE_REMOVE_NORMAL
);
2398 /* -------------------------------------------------------------------------
2399 * START OF LOAD / UNLOAD
2400 * -------------------------------------------------------------------------
2403 static int qede_set_num_queues(struct qede_dev
*edev
)
2408 /* Setup queues according to possible resources*/
2410 rss_num
= edev
->req_rss
;
2412 rss_num
= netif_get_num_default_rss_queues() *
2413 edev
->dev_info
.common
.num_hwfns
;
2415 rss_num
= min_t(u16
, QEDE_MAX_RSS_CNT(edev
), rss_num
);
2417 rc
= edev
->ops
->common
->set_fp_int(edev
->cdev
, rss_num
);
2419 /* Managed to request interrupts for our queues */
2421 DP_INFO(edev
, "Managed %d [of %d] RSS queues\n",
2422 QEDE_RSS_CNT(edev
), rss_num
);
2428 static void qede_free_mem_sb(struct qede_dev
*edev
,
2429 struct qed_sb_info
*sb_info
)
2431 if (sb_info
->sb_virt
)
2432 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_info
->sb_virt
),
2433 (void *)sb_info
->sb_virt
, sb_info
->sb_phys
);
2436 /* This function allocates fast-path status block memory */
2437 static int qede_alloc_mem_sb(struct qede_dev
*edev
,
2438 struct qed_sb_info
*sb_info
,
2441 struct status_block
*sb_virt
;
2445 sb_virt
= dma_alloc_coherent(&edev
->pdev
->dev
,
2447 &sb_phys
, GFP_KERNEL
);
2449 DP_ERR(edev
, "Status block allocation failed\n");
2453 rc
= edev
->ops
->common
->sb_init(edev
->cdev
, sb_info
,
2454 sb_virt
, sb_phys
, sb_id
,
2455 QED_SB_TYPE_L2_QUEUE
);
2457 DP_ERR(edev
, "Status block initialization failed\n");
2458 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_virt
),
2466 static void qede_free_rx_buffers(struct qede_dev
*edev
,
2467 struct qede_rx_queue
*rxq
)
2471 for (i
= rxq
->sw_rx_cons
; i
!= rxq
->sw_rx_prod
; i
++) {
2472 struct sw_rx_data
*rx_buf
;
2475 rx_buf
= &rxq
->sw_rx_ring
[i
& NUM_RX_BDS_MAX
];
2476 data
= rx_buf
->data
;
2478 dma_unmap_page(&edev
->pdev
->dev
,
2480 PAGE_SIZE
, DMA_FROM_DEVICE
);
2482 rx_buf
->data
= NULL
;
2487 static void qede_free_sge_mem(struct qede_dev
*edev
,
2488 struct qede_rx_queue
*rxq
) {
2491 if (edev
->gro_disable
)
2494 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2495 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2496 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2498 if (replace_buf
->data
) {
2499 dma_unmap_page(&edev
->pdev
->dev
,
2500 dma_unmap_addr(replace_buf
, mapping
),
2501 PAGE_SIZE
, DMA_FROM_DEVICE
);
2502 __free_page(replace_buf
->data
);
2507 static void qede_free_mem_rxq(struct qede_dev
*edev
,
2508 struct qede_rx_queue
*rxq
)
2510 qede_free_sge_mem(edev
, rxq
);
2512 /* Free rx buffers */
2513 qede_free_rx_buffers(edev
, rxq
);
2515 /* Free the parallel SW ring */
2516 kfree(rxq
->sw_rx_ring
);
2518 /* Free the real RQ ring used by FW */
2519 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_bd_ring
);
2520 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_comp_ring
);
2523 static int qede_alloc_rx_buffer(struct qede_dev
*edev
,
2524 struct qede_rx_queue
*rxq
)
2526 struct sw_rx_data
*sw_rx_data
;
2527 struct eth_rx_bd
*rx_bd
;
2532 rx_buf_size
= rxq
->rx_buf_size
;
2534 data
= alloc_pages(GFP_ATOMIC
, 0);
2535 if (unlikely(!data
)) {
2536 DP_NOTICE(edev
, "Failed to allocate Rx data [page]\n");
2540 /* Map the entire page as it would be used
2541 * for multiple RX buffer segment size mapping.
2543 mapping
= dma_map_page(&edev
->pdev
->dev
, data
, 0,
2544 PAGE_SIZE
, DMA_FROM_DEVICE
);
2545 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2547 DP_NOTICE(edev
, "Failed to map Rx buffer\n");
2551 sw_rx_data
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
2552 sw_rx_data
->page_offset
= 0;
2553 sw_rx_data
->data
= data
;
2554 sw_rx_data
->mapping
= mapping
;
2556 /* Advance PROD and get BD pointer */
2557 rx_bd
= (struct eth_rx_bd
*)qed_chain_produce(&rxq
->rx_bd_ring
);
2559 rx_bd
->addr
.hi
= cpu_to_le32(upper_32_bits(mapping
));
2560 rx_bd
->addr
.lo
= cpu_to_le32(lower_32_bits(mapping
));
2567 static int qede_alloc_sge_mem(struct qede_dev
*edev
,
2568 struct qede_rx_queue
*rxq
)
2573 if (edev
->gro_disable
)
2576 if (edev
->ndev
->mtu
> PAGE_SIZE
) {
2577 edev
->gro_disable
= 1;
2581 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2582 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2583 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2585 replace_buf
->data
= alloc_pages(GFP_ATOMIC
, 0);
2586 if (unlikely(!replace_buf
->data
)) {
2588 "Failed to allocate TPA skb pool [replacement buffer]\n");
2592 mapping
= dma_map_page(&edev
->pdev
->dev
, replace_buf
->data
, 0,
2593 rxq
->rx_buf_size
, DMA_FROM_DEVICE
);
2594 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2596 "Failed to map TPA replacement buffer\n");
2600 dma_unmap_addr_set(replace_buf
, mapping
, mapping
);
2601 tpa_info
->replace_buf
.page_offset
= 0;
2603 tpa_info
->replace_buf_mapping
= mapping
;
2604 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
2609 qede_free_sge_mem(edev
, rxq
);
2610 edev
->gro_disable
= 1;
2614 /* This function allocates all memory needed per Rx queue */
2615 static int qede_alloc_mem_rxq(struct qede_dev
*edev
,
2616 struct qede_rx_queue
*rxq
)
2620 rxq
->num_rx_buffers
= edev
->q_num_rx_buffers
;
2622 rxq
->rx_buf_size
= NET_IP_ALIGN
+ ETH_OVERHEAD
+
2624 if (rxq
->rx_buf_size
> PAGE_SIZE
)
2625 rxq
->rx_buf_size
= PAGE_SIZE
;
2627 /* Segment size to spilt a page in multiple equal parts */
2628 rxq
->rx_buf_seg_size
= roundup_pow_of_two(rxq
->rx_buf_size
);
2630 /* Allocate the parallel driver ring for Rx buffers */
2631 size
= sizeof(*rxq
->sw_rx_ring
) * RX_RING_SIZE
;
2632 rxq
->sw_rx_ring
= kzalloc(size
, GFP_KERNEL
);
2633 if (!rxq
->sw_rx_ring
) {
2634 DP_ERR(edev
, "Rx buffers ring allocation failed\n");
2639 /* Allocate FW Rx ring */
2640 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2641 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2642 QED_CHAIN_MODE_NEXT_PTR
,
2644 sizeof(struct eth_rx_bd
),
2650 /* Allocate FW completion ring */
2651 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2652 QED_CHAIN_USE_TO_CONSUME
,
2655 sizeof(union eth_rx_cqe
),
2656 &rxq
->rx_comp_ring
);
2660 /* Allocate buffers for the Rx ring */
2661 for (i
= 0; i
< rxq
->num_rx_buffers
; i
++) {
2662 rc
= qede_alloc_rx_buffer(edev
, rxq
);
2665 "Rx buffers allocation failed at index %d\n", i
);
2670 rc
= qede_alloc_sge_mem(edev
, rxq
);
2675 static void qede_free_mem_txq(struct qede_dev
*edev
,
2676 struct qede_tx_queue
*txq
)
2678 /* Free the parallel SW ring */
2679 kfree(txq
->sw_tx_ring
);
2681 /* Free the real RQ ring used by FW */
2682 edev
->ops
->common
->chain_free(edev
->cdev
, &txq
->tx_pbl
);
2685 /* This function allocates all memory needed per Tx queue */
2686 static int qede_alloc_mem_txq(struct qede_dev
*edev
,
2687 struct qede_tx_queue
*txq
)
2690 union eth_tx_bd_types
*p_virt
;
2692 txq
->num_tx_buffers
= edev
->q_num_tx_buffers
;
2694 /* Allocate the parallel driver ring for Tx buffers */
2695 size
= sizeof(*txq
->sw_tx_ring
) * NUM_TX_BDS_MAX
;
2696 txq
->sw_tx_ring
= kzalloc(size
, GFP_KERNEL
);
2697 if (!txq
->sw_tx_ring
) {
2698 DP_NOTICE(edev
, "Tx buffers ring allocation failed\n");
2702 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2703 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2714 qede_free_mem_txq(edev
, txq
);
2718 /* This function frees all memory of a single fp */
2719 static void qede_free_mem_fp(struct qede_dev
*edev
,
2720 struct qede_fastpath
*fp
)
2724 qede_free_mem_sb(edev
, fp
->sb_info
);
2726 qede_free_mem_rxq(edev
, fp
->rxq
);
2728 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
2729 qede_free_mem_txq(edev
, &fp
->txqs
[tc
]);
2732 /* This function allocates all memory needed for a single fp (i.e. an entity
2733 * which contains status block, one rx queue and multiple per-TC tx queues.
2735 static int qede_alloc_mem_fp(struct qede_dev
*edev
,
2736 struct qede_fastpath
*fp
)
2740 rc
= qede_alloc_mem_sb(edev
, fp
->sb_info
, fp
->rss_id
);
2744 rc
= qede_alloc_mem_rxq(edev
, fp
->rxq
);
2748 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2749 rc
= qede_alloc_mem_txq(edev
, &fp
->txqs
[tc
]);
2759 static void qede_free_mem_load(struct qede_dev
*edev
)
2764 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
2766 qede_free_mem_fp(edev
, fp
);
2770 /* This function allocates all qede memory at NIC load. */
2771 static int qede_alloc_mem_load(struct qede_dev
*edev
)
2775 for (rss_id
= 0; rss_id
< QEDE_RSS_CNT(edev
); rss_id
++) {
2776 struct qede_fastpath
*fp
= &edev
->fp_array
[rss_id
];
2778 rc
= qede_alloc_mem_fp(edev
, fp
);
2781 "Failed to allocate memory for fastpath - rss id = %d\n",
2783 qede_free_mem_load(edev
);
2791 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
2792 static void qede_init_fp(struct qede_dev
*edev
)
2794 int rss_id
, txq_index
, tc
;
2795 struct qede_fastpath
*fp
;
2797 for_each_rss(rss_id
) {
2798 fp
= &edev
->fp_array
[rss_id
];
2801 fp
->rss_id
= rss_id
;
2803 memset((void *)&fp
->napi
, 0, sizeof(fp
->napi
));
2805 memset((void *)fp
->sb_info
, 0, sizeof(*fp
->sb_info
));
2807 memset((void *)fp
->rxq
, 0, sizeof(*fp
->rxq
));
2808 fp
->rxq
->rxq_id
= rss_id
;
2810 memset((void *)fp
->txqs
, 0, (edev
->num_tc
* sizeof(*fp
->txqs
)));
2811 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2812 txq_index
= tc
* QEDE_RSS_CNT(edev
) + rss_id
;
2813 fp
->txqs
[tc
].index
= txq_index
;
2816 snprintf(fp
->name
, sizeof(fp
->name
), "%s-fp-%d",
2817 edev
->ndev
->name
, rss_id
);
2820 edev
->gro_disable
= !(edev
->ndev
->features
& NETIF_F_GRO
);
2823 static int qede_set_real_num_queues(struct qede_dev
*edev
)
2827 rc
= netif_set_real_num_tx_queues(edev
->ndev
, QEDE_TSS_CNT(edev
));
2829 DP_NOTICE(edev
, "Failed to set real number of Tx queues\n");
2832 rc
= netif_set_real_num_rx_queues(edev
->ndev
, QEDE_RSS_CNT(edev
));
2834 DP_NOTICE(edev
, "Failed to set real number of Rx queues\n");
2841 static void qede_napi_disable_remove(struct qede_dev
*edev
)
2846 napi_disable(&edev
->fp_array
[i
].napi
);
2848 netif_napi_del(&edev
->fp_array
[i
].napi
);
2852 static void qede_napi_add_enable(struct qede_dev
*edev
)
2856 /* Add NAPI objects */
2858 netif_napi_add(edev
->ndev
, &edev
->fp_array
[i
].napi
,
2859 qede_poll
, NAPI_POLL_WEIGHT
);
2860 napi_enable(&edev
->fp_array
[i
].napi
);
2864 static void qede_sync_free_irqs(struct qede_dev
*edev
)
2868 for (i
= 0; i
< edev
->int_info
.used_cnt
; i
++) {
2869 if (edev
->int_info
.msix_cnt
) {
2870 synchronize_irq(edev
->int_info
.msix
[i
].vector
);
2871 free_irq(edev
->int_info
.msix
[i
].vector
,
2872 &edev
->fp_array
[i
]);
2874 edev
->ops
->common
->simd_handler_clean(edev
->cdev
, i
);
2878 edev
->int_info
.used_cnt
= 0;
2881 static int qede_req_msix_irqs(struct qede_dev
*edev
)
2885 /* Sanitize number of interrupts == number of prepared RSS queues */
2886 if (QEDE_RSS_CNT(edev
) > edev
->int_info
.msix_cnt
) {
2888 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
2889 QEDE_RSS_CNT(edev
), edev
->int_info
.msix_cnt
);
2893 for (i
= 0; i
< QEDE_RSS_CNT(edev
); i
++) {
2894 rc
= request_irq(edev
->int_info
.msix
[i
].vector
,
2895 qede_msix_fp_int
, 0, edev
->fp_array
[i
].name
,
2896 &edev
->fp_array
[i
]);
2898 DP_ERR(edev
, "Request fp %d irq failed\n", i
);
2899 qede_sync_free_irqs(edev
);
2902 DP_VERBOSE(edev
, NETIF_MSG_INTR
,
2903 "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
2904 edev
->fp_array
[i
].name
, i
,
2905 &edev
->fp_array
[i
]);
2906 edev
->int_info
.used_cnt
++;
2912 static void qede_simd_fp_handler(void *cookie
)
2914 struct qede_fastpath
*fp
= (struct qede_fastpath
*)cookie
;
2916 napi_schedule_irqoff(&fp
->napi
);
2919 static int qede_setup_irqs(struct qede_dev
*edev
)
2923 /* Learn Interrupt configuration */
2924 rc
= edev
->ops
->common
->get_fp_int(edev
->cdev
, &edev
->int_info
);
2928 if (edev
->int_info
.msix_cnt
) {
2929 rc
= qede_req_msix_irqs(edev
);
2932 edev
->ndev
->irq
= edev
->int_info
.msix
[0].vector
;
2934 const struct qed_common_ops
*ops
;
2936 /* qed should learn receive the RSS ids and callbacks */
2937 ops
= edev
->ops
->common
;
2938 for (i
= 0; i
< QEDE_RSS_CNT(edev
); i
++)
2939 ops
->simd_handler_config(edev
->cdev
,
2940 &edev
->fp_array
[i
], i
,
2941 qede_simd_fp_handler
);
2942 edev
->int_info
.used_cnt
= QEDE_RSS_CNT(edev
);
2947 static int qede_drain_txq(struct qede_dev
*edev
,
2948 struct qede_tx_queue
*txq
,
2953 while (txq
->sw_tx_cons
!= txq
->sw_tx_prod
) {
2957 "Tx queue[%d] is stuck, requesting MCP to drain\n",
2959 rc
= edev
->ops
->common
->drain(edev
->cdev
);
2962 return qede_drain_txq(edev
, txq
, false);
2965 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
2966 txq
->index
, txq
->sw_tx_prod
,
2971 usleep_range(1000, 2000);
2975 /* FW finished processing, wait for HW to transmit all tx packets */
2976 usleep_range(1000, 2000);
2981 static int qede_stop_queues(struct qede_dev
*edev
)
2983 struct qed_update_vport_params vport_update_params
;
2984 struct qed_dev
*cdev
= edev
->cdev
;
2987 /* Disable the vport */
2988 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
2989 vport_update_params
.vport_id
= 0;
2990 vport_update_params
.update_vport_active_flg
= 1;
2991 vport_update_params
.vport_active_flg
= 0;
2992 vport_update_params
.update_rss_flg
= 0;
2994 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
2996 DP_ERR(edev
, "Failed to update vport\n");
3000 /* Flush Tx queues. If needed, request drain from MCP */
3002 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
3004 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3005 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
3007 rc
= qede_drain_txq(edev
, txq
, true);
3013 /* Stop all Queues in reverse order*/
3014 for (i
= QEDE_RSS_CNT(edev
) - 1; i
>= 0; i
--) {
3015 struct qed_stop_rxq_params rx_params
;
3017 /* Stop the Tx Queue(s)*/
3018 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3019 struct qed_stop_txq_params tx_params
;
3021 tx_params
.rss_id
= i
;
3022 tx_params
.tx_queue_id
= tc
* QEDE_RSS_CNT(edev
) + i
;
3023 rc
= edev
->ops
->q_tx_stop(cdev
, &tx_params
);
3025 DP_ERR(edev
, "Failed to stop TXQ #%d\n",
3026 tx_params
.tx_queue_id
);
3031 /* Stop the Rx Queue*/
3032 memset(&rx_params
, 0, sizeof(rx_params
));
3033 rx_params
.rss_id
= i
;
3034 rx_params
.rx_queue_id
= i
;
3036 rc
= edev
->ops
->q_rx_stop(cdev
, &rx_params
);
3038 DP_ERR(edev
, "Failed to stop RXQ #%d\n", i
);
3043 /* Stop the vport */
3044 rc
= edev
->ops
->vport_stop(cdev
, 0);
3046 DP_ERR(edev
, "Failed to stop VPORT\n");
3051 static int qede_start_queues(struct qede_dev
*edev
)
3054 int vlan_removal_en
= 1;
3055 struct qed_dev
*cdev
= edev
->cdev
;
3056 struct qed_update_vport_params vport_update_params
;
3057 struct qed_queue_start_common_params q_params
;
3058 struct qed_start_vport_params start
= {0};
3059 bool reset_rss_indir
= false;
3061 if (!edev
->num_rss
) {
3063 "Cannot update V-VPORT as active as there are no Rx queues\n");
3067 start
.gro_enable
= !edev
->gro_disable
;
3068 start
.mtu
= edev
->ndev
->mtu
;
3070 start
.drop_ttl0
= true;
3071 start
.remove_inner_vlan
= vlan_removal_en
;
3073 rc
= edev
->ops
->vport_start(cdev
, &start
);
3076 DP_ERR(edev
, "Start V-PORT failed %d\n", rc
);
3080 DP_VERBOSE(edev
, NETIF_MSG_IFUP
,
3081 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
3082 start
.vport_id
, edev
->ndev
->mtu
+ 0xe, vlan_removal_en
);
3085 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
3086 dma_addr_t phys_table
= fp
->rxq
->rx_comp_ring
.pbl
.p_phys_table
;
3088 memset(&q_params
, 0, sizeof(q_params
));
3089 q_params
.rss_id
= i
;
3090 q_params
.queue_id
= i
;
3091 q_params
.vport_id
= 0;
3092 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
3093 q_params
.sb_idx
= RX_PI
;
3095 rc
= edev
->ops
->q_rx_start(cdev
, &q_params
,
3096 fp
->rxq
->rx_buf_size
,
3097 fp
->rxq
->rx_bd_ring
.p_phys_addr
,
3099 fp
->rxq
->rx_comp_ring
.page_cnt
,
3100 &fp
->rxq
->hw_rxq_prod_addr
);
3102 DP_ERR(edev
, "Start RXQ #%d failed %d\n", i
, rc
);
3106 fp
->rxq
->hw_cons_ptr
= &fp
->sb_info
->sb_virt
->pi_array
[RX_PI
];
3108 qede_update_rx_prod(edev
, fp
->rxq
);
3110 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3111 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
3112 int txq_index
= tc
* QEDE_RSS_CNT(edev
) + i
;
3114 memset(&q_params
, 0, sizeof(q_params
));
3115 q_params
.rss_id
= i
;
3116 q_params
.queue_id
= txq_index
;
3117 q_params
.vport_id
= 0;
3118 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
3119 q_params
.sb_idx
= TX_PI(tc
);
3121 rc
= edev
->ops
->q_tx_start(cdev
, &q_params
,
3122 txq
->tx_pbl
.pbl
.p_phys_table
,
3123 txq
->tx_pbl
.page_cnt
,
3124 &txq
->doorbell_addr
);
3126 DP_ERR(edev
, "Start TXQ #%d failed %d\n",
3132 &fp
->sb_info
->sb_virt
->pi_array
[TX_PI(tc
)];
3133 SET_FIELD(txq
->tx_db
.data
.params
,
3134 ETH_DB_DATA_DEST
, DB_DEST_XCM
);
3135 SET_FIELD(txq
->tx_db
.data
.params
, ETH_DB_DATA_AGG_CMD
,
3137 SET_FIELD(txq
->tx_db
.data
.params
,
3138 ETH_DB_DATA_AGG_VAL_SEL
,
3139 DQ_XCM_ETH_TX_BD_PROD_CMD
);
3141 txq
->tx_db
.data
.agg_flags
= DQ_XCM_ETH_DQ_CF_CMD
;
3145 /* Prepare and send the vport enable */
3146 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
3147 vport_update_params
.vport_id
= start
.vport_id
;
3148 vport_update_params
.update_vport_active_flg
= 1;
3149 vport_update_params
.vport_active_flg
= 1;
3151 /* Fill struct with RSS params */
3152 if (QEDE_RSS_CNT(edev
) > 1) {
3153 vport_update_params
.update_rss_flg
= 1;
3155 /* Need to validate current RSS config uses valid entries */
3156 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3157 if (edev
->rss_params
.rss_ind_table
[i
] >=
3159 reset_rss_indir
= true;
3164 if (!(edev
->rss_params_inited
& QEDE_RSS_INDIR_INITED
) ||
3168 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3171 val
= QEDE_RSS_CNT(edev
);
3172 indir_val
= ethtool_rxfh_indir_default(i
, val
);
3173 edev
->rss_params
.rss_ind_table
[i
] = indir_val
;
3175 edev
->rss_params_inited
|= QEDE_RSS_INDIR_INITED
;
3178 if (!(edev
->rss_params_inited
& QEDE_RSS_KEY_INITED
)) {
3179 netdev_rss_key_fill(edev
->rss_params
.rss_key
,
3180 sizeof(edev
->rss_params
.rss_key
));
3181 edev
->rss_params_inited
|= QEDE_RSS_KEY_INITED
;
3184 if (!(edev
->rss_params_inited
& QEDE_RSS_CAPS_INITED
)) {
3185 edev
->rss_params
.rss_caps
= QED_RSS_IPV4
|
3189 edev
->rss_params_inited
|= QEDE_RSS_CAPS_INITED
;
3192 memcpy(&vport_update_params
.rss_params
, &edev
->rss_params
,
3193 sizeof(vport_update_params
.rss_params
));
3195 memset(&vport_update_params
.rss_params
, 0,
3196 sizeof(vport_update_params
.rss_params
));
3199 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
3201 DP_ERR(edev
, "Update V-PORT failed %d\n", rc
);
3208 static int qede_set_mcast_rx_mac(struct qede_dev
*edev
,
3209 enum qed_filter_xcast_params_type opcode
,
3210 unsigned char *mac
, int num_macs
)
3212 struct qed_filter_params filter_cmd
;
3215 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
3216 filter_cmd
.type
= QED_FILTER_TYPE_MCAST
;
3217 filter_cmd
.filter
.mcast
.type
= opcode
;
3218 filter_cmd
.filter
.mcast
.num
= num_macs
;
3220 for (i
= 0; i
< num_macs
; i
++, mac
+= ETH_ALEN
)
3221 ether_addr_copy(filter_cmd
.filter
.mcast
.mac
[i
], mac
);
3223 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
3226 enum qede_unload_mode
{
3230 static void qede_unload(struct qede_dev
*edev
, enum qede_unload_mode mode
)
3232 struct qed_link_params link_params
;
3235 DP_INFO(edev
, "Starting qede unload\n");
3237 mutex_lock(&edev
->qede_lock
);
3238 edev
->state
= QEDE_STATE_CLOSED
;
3241 netif_tx_disable(edev
->ndev
);
3242 netif_carrier_off(edev
->ndev
);
3244 /* Reset the link */
3245 memset(&link_params
, 0, sizeof(link_params
));
3246 link_params
.link_up
= false;
3247 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3248 rc
= qede_stop_queues(edev
);
3250 qede_sync_free_irqs(edev
);
3254 DP_INFO(edev
, "Stopped Queues\n");
3256 qede_vlan_mark_nonconfigured(edev
);
3257 edev
->ops
->fastpath_stop(edev
->cdev
);
3259 /* Release the interrupts */
3260 qede_sync_free_irqs(edev
);
3261 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3263 qede_napi_disable_remove(edev
);
3265 qede_free_mem_load(edev
);
3266 qede_free_fp_array(edev
);
3269 mutex_unlock(&edev
->qede_lock
);
3270 DP_INFO(edev
, "Ending qede unload\n");
3273 enum qede_load_mode
{
3277 static int qede_load(struct qede_dev
*edev
, enum qede_load_mode mode
)
3279 struct qed_link_params link_params
;
3280 struct qed_link_output link_output
;
3283 DP_INFO(edev
, "Starting qede load\n");
3285 rc
= qede_set_num_queues(edev
);
3289 rc
= qede_alloc_fp_array(edev
);
3295 rc
= qede_alloc_mem_load(edev
);
3298 DP_INFO(edev
, "Allocated %d RSS queues on %d TC/s\n",
3299 QEDE_RSS_CNT(edev
), edev
->num_tc
);
3301 rc
= qede_set_real_num_queues(edev
);
3305 qede_napi_add_enable(edev
);
3306 DP_INFO(edev
, "Napi added and enabled\n");
3308 rc
= qede_setup_irqs(edev
);
3311 DP_INFO(edev
, "Setup IRQs succeeded\n");
3313 rc
= qede_start_queues(edev
);
3316 DP_INFO(edev
, "Start VPORT, RXQ and TXQ succeeded\n");
3318 /* Add primary mac and set Rx filters */
3319 ether_addr_copy(edev
->primary_mac
, edev
->ndev
->dev_addr
);
3321 mutex_lock(&edev
->qede_lock
);
3322 edev
->state
= QEDE_STATE_OPEN
;
3323 mutex_unlock(&edev
->qede_lock
);
3325 /* Program un-configured VLANs */
3326 qede_configure_vlan_filters(edev
);
3328 /* Ask for link-up using current configuration */
3329 memset(&link_params
, 0, sizeof(link_params
));
3330 link_params
.link_up
= true;
3331 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3333 /* Query whether link is already-up */
3334 memset(&link_output
, 0, sizeof(link_output
));
3335 edev
->ops
->common
->get_link(edev
->cdev
, &link_output
);
3336 qede_link_update(edev
, &link_output
);
3338 DP_INFO(edev
, "Ending successfully qede load\n");
3343 qede_sync_free_irqs(edev
);
3344 memset(&edev
->int_info
.msix_cnt
, 0, sizeof(struct qed_int_info
));
3346 qede_napi_disable_remove(edev
);
3348 qede_free_mem_load(edev
);
3350 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3351 qede_free_fp_array(edev
);
3357 void qede_reload(struct qede_dev
*edev
,
3358 void (*func
)(struct qede_dev
*, union qede_reload_args
*),
3359 union qede_reload_args
*args
)
3361 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3362 /* Call function handler to update parameters
3363 * needed for function load.
3368 qede_load(edev
, QEDE_LOAD_NORMAL
);
3370 mutex_lock(&edev
->qede_lock
);
3371 qede_config_rx_mode(edev
->ndev
);
3372 mutex_unlock(&edev
->qede_lock
);
3375 /* called with rtnl_lock */
3376 static int qede_open(struct net_device
*ndev
)
3378 struct qede_dev
*edev
= netdev_priv(ndev
);
3381 netif_carrier_off(ndev
);
3383 edev
->ops
->common
->set_power_state(edev
->cdev
, PCI_D0
);
3385 rc
= qede_load(edev
, QEDE_LOAD_NORMAL
);
3390 #ifdef CONFIG_QEDE_VXLAN
3391 vxlan_get_rx_port(ndev
);
3393 #ifdef CONFIG_QEDE_GENEVE
3394 geneve_get_rx_port(ndev
);
3399 static int qede_close(struct net_device
*ndev
)
3401 struct qede_dev
*edev
= netdev_priv(ndev
);
3403 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3408 static void qede_link_update(void *dev
, struct qed_link_output
*link
)
3410 struct qede_dev
*edev
= dev
;
3412 if (!netif_running(edev
->ndev
)) {
3413 DP_VERBOSE(edev
, NETIF_MSG_LINK
, "Interface is not running\n");
3417 if (link
->link_up
) {
3418 if (!netif_carrier_ok(edev
->ndev
)) {
3419 DP_NOTICE(edev
, "Link is up\n");
3420 netif_tx_start_all_queues(edev
->ndev
);
3421 netif_carrier_on(edev
->ndev
);
3424 if (netif_carrier_ok(edev
->ndev
)) {
3425 DP_NOTICE(edev
, "Link is down\n");
3426 netif_tx_disable(edev
->ndev
);
3427 netif_carrier_off(edev
->ndev
);
3432 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
)
3434 struct qede_dev
*edev
= netdev_priv(ndev
);
3435 struct sockaddr
*addr
= p
;
3438 ASSERT_RTNL(); /* @@@TBD To be removed */
3440 DP_INFO(edev
, "Set_mac_addr called\n");
3442 if (!is_valid_ether_addr(addr
->sa_data
)) {
3443 DP_NOTICE(edev
, "The MAC address is not valid\n");
3447 ether_addr_copy(ndev
->dev_addr
, addr
->sa_data
);
3449 if (!netif_running(ndev
)) {
3450 DP_NOTICE(edev
, "The device is currently down\n");
3454 /* Remove the previous primary mac */
3455 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3460 /* Add MAC filter according to the new unicast HW MAC address */
3461 ether_addr_copy(edev
->primary_mac
, ndev
->dev_addr
);
3462 return qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3467 qede_configure_mcast_filtering(struct net_device
*ndev
,
3468 enum qed_filter_rx_mode_type
*accept_flags
)
3470 struct qede_dev
*edev
= netdev_priv(ndev
);
3471 unsigned char *mc_macs
, *temp
;
3472 struct netdev_hw_addr
*ha
;
3473 int rc
= 0, mc_count
;
3476 size
= 64 * ETH_ALEN
;
3478 mc_macs
= kzalloc(size
, GFP_KERNEL
);
3481 "Failed to allocate memory for multicast MACs\n");
3488 /* Remove all previously configured MAC filters */
3489 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3494 netif_addr_lock_bh(ndev
);
3496 mc_count
= netdev_mc_count(ndev
);
3497 if (mc_count
< 64) {
3498 netdev_for_each_mc_addr(ha
, ndev
) {
3499 ether_addr_copy(temp
, ha
->addr
);
3504 netif_addr_unlock_bh(ndev
);
3506 /* Check for all multicast @@@TBD resource allocation */
3507 if ((ndev
->flags
& IFF_ALLMULTI
) ||
3509 if (*accept_flags
== QED_FILTER_RX_MODE_TYPE_REGULAR
)
3510 *accept_flags
= QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC
;
3512 /* Add all multicast MAC filters */
3513 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3522 static void qede_set_rx_mode(struct net_device
*ndev
)
3524 struct qede_dev
*edev
= netdev_priv(ndev
);
3526 DP_INFO(edev
, "qede_set_rx_mode called\n");
3528 if (edev
->state
!= QEDE_STATE_OPEN
) {
3530 "qede_set_rx_mode called while interface is down\n");
3532 set_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
);
3533 schedule_delayed_work(&edev
->sp_task
, 0);
3537 /* Must be called with qede_lock held */
3538 static void qede_config_rx_mode(struct net_device
*ndev
)
3540 enum qed_filter_rx_mode_type accept_flags
= QED_FILTER_TYPE_UCAST
;
3541 struct qede_dev
*edev
= netdev_priv(ndev
);
3542 struct qed_filter_params rx_mode
;
3543 unsigned char *uc_macs
, *temp
;
3544 struct netdev_hw_addr
*ha
;
3548 netif_addr_lock_bh(ndev
);
3550 uc_count
= netdev_uc_count(ndev
);
3551 size
= uc_count
* ETH_ALEN
;
3553 uc_macs
= kzalloc(size
, GFP_ATOMIC
);
3555 DP_NOTICE(edev
, "Failed to allocate memory for unicast MACs\n");
3556 netif_addr_unlock_bh(ndev
);
3561 netdev_for_each_uc_addr(ha
, ndev
) {
3562 ether_addr_copy(temp
, ha
->addr
);
3566 netif_addr_unlock_bh(ndev
);
3568 /* Configure the struct for the Rx mode */
3569 memset(&rx_mode
, 0, sizeof(struct qed_filter_params
));
3570 rx_mode
.type
= QED_FILTER_TYPE_RX_MODE
;
3572 /* Remove all previous unicast secondary macs and multicast macs
3573 * (configrue / leave the primary mac)
3575 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_REPLACE
,
3580 /* Check for promiscuous */
3581 if ((ndev
->flags
& IFF_PROMISC
) ||
3582 (uc_count
> 15)) { /* @@@TBD resource allocation - 1 */
3583 accept_flags
= QED_FILTER_RX_MODE_TYPE_PROMISC
;
3585 /* Add MAC filters according to the unicast secondary macs */
3589 for (i
= 0; i
< uc_count
; i
++) {
3590 rc
= qede_set_ucast_rx_mac(edev
,
3591 QED_FILTER_XCAST_TYPE_ADD
,
3599 rc
= qede_configure_mcast_filtering(ndev
, &accept_flags
);
3604 /* take care of VLAN mode */
3605 if (ndev
->flags
& IFF_PROMISC
) {
3606 qede_config_accept_any_vlan(edev
, true);
3607 } else if (!edev
->non_configured_vlans
) {
3608 /* It's possible that accept_any_vlan mode is set due to a
3609 * previous setting of IFF_PROMISC. If vlan credits are
3610 * sufficient, disable accept_any_vlan.
3612 qede_config_accept_any_vlan(edev
, false);
3615 rx_mode
.filter
.accept_flags
= accept_flags
;
3616 edev
->ops
->filter_config(edev
->cdev
, &rx_mode
);