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 #include <net/udp_tunnel.h>
31 #include <linux/if_ether.h>
32 #include <linux/if_vlan.h>
33 #include <linux/pkt_sched.h>
34 #include <linux/ethtool.h>
36 #include <linux/random.h>
37 #include <net/ip6_checksum.h>
38 #include <linux/bitops.h>
42 static char version
[] =
43 "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION
"\n";
45 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver");
46 MODULE_LICENSE("GPL");
47 MODULE_VERSION(DRV_MODULE_VERSION
);
50 module_param(debug
, uint
, 0);
51 MODULE_PARM_DESC(debug
, " Default debug msglevel");
53 static const struct qed_eth_ops
*qed_ops
;
55 #define CHIP_NUM_57980S_40 0x1634
56 #define CHIP_NUM_57980S_10 0x1666
57 #define CHIP_NUM_57980S_MF 0x1636
58 #define CHIP_NUM_57980S_100 0x1644
59 #define CHIP_NUM_57980S_50 0x1654
60 #define CHIP_NUM_57980S_25 0x1656
61 #define CHIP_NUM_57980S_IOV 0x1664
63 #ifndef PCI_DEVICE_ID_NX2_57980E
64 #define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40
65 #define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10
66 #define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF
67 #define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100
68 #define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50
69 #define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25
70 #define PCI_DEVICE_ID_57980S_IOV CHIP_NUM_57980S_IOV
73 enum qede_pci_private
{
78 static const struct pci_device_id qede_pci_tbl
[] = {
79 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_40
), QEDE_PRIVATE_PF
},
80 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_10
), QEDE_PRIVATE_PF
},
81 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_MF
), QEDE_PRIVATE_PF
},
82 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_100
), QEDE_PRIVATE_PF
},
83 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_50
), QEDE_PRIVATE_PF
},
84 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_25
), QEDE_PRIVATE_PF
},
85 #ifdef CONFIG_QED_SRIOV
86 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_IOV
), QEDE_PRIVATE_VF
},
91 MODULE_DEVICE_TABLE(pci
, qede_pci_tbl
);
93 static int qede_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
);
95 #define TX_TIMEOUT (5 * HZ)
97 static void qede_remove(struct pci_dev
*pdev
);
98 static int qede_alloc_rx_buffer(struct qede_dev
*edev
,
99 struct qede_rx_queue
*rxq
);
100 static void qede_link_update(void *dev
, struct qed_link_output
*link
);
102 #ifdef CONFIG_QED_SRIOV
103 static int qede_set_vf_vlan(struct net_device
*ndev
, int vf
, u16 vlan
, u8 qos
)
105 struct qede_dev
*edev
= netdev_priv(ndev
);
108 DP_NOTICE(edev
, "Illegal vlan value %d\n", vlan
);
112 DP_VERBOSE(edev
, QED_MSG_IOV
, "Setting Vlan 0x%04x to VF [%d]\n",
115 return edev
->ops
->iov
->set_vlan(edev
->cdev
, vlan
, vf
);
118 static int qede_set_vf_mac(struct net_device
*ndev
, int vfidx
, u8
*mac
)
120 struct qede_dev
*edev
= netdev_priv(ndev
);
122 DP_VERBOSE(edev
, QED_MSG_IOV
,
123 "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n",
124 mac
[0], mac
[1], mac
[2], mac
[3], mac
[4], mac
[5], vfidx
);
126 if (!is_valid_ether_addr(mac
)) {
127 DP_VERBOSE(edev
, QED_MSG_IOV
, "MAC address isn't valid\n");
131 return edev
->ops
->iov
->set_mac(edev
->cdev
, mac
, vfidx
);
134 static int qede_sriov_configure(struct pci_dev
*pdev
, int num_vfs_param
)
136 struct qede_dev
*edev
= netdev_priv(pci_get_drvdata(pdev
));
137 struct qed_dev_info
*qed_info
= &edev
->dev_info
.common
;
140 DP_VERBOSE(edev
, QED_MSG_IOV
, "Requested %d VFs\n", num_vfs_param
);
142 rc
= edev
->ops
->iov
->configure(edev
->cdev
, num_vfs_param
);
144 /* Enable/Disable Tx switching for PF */
145 if ((rc
== num_vfs_param
) && netif_running(edev
->ndev
) &&
146 qed_info
->mf_mode
!= QED_MF_NPAR
&& qed_info
->tx_switching
) {
147 struct qed_update_vport_params params
;
149 memset(¶ms
, 0, sizeof(params
));
151 params
.update_tx_switching_flg
= 1;
152 params
.tx_switching_flg
= num_vfs_param
? 1 : 0;
153 edev
->ops
->vport_update(edev
->cdev
, ¶ms
);
160 static struct pci_driver qede_pci_driver
= {
162 .id_table
= qede_pci_tbl
,
164 .remove
= qede_remove
,
165 #ifdef CONFIG_QED_SRIOV
166 .sriov_configure
= qede_sriov_configure
,
170 static void qede_force_mac(void *dev
, u8
*mac
)
172 struct qede_dev
*edev
= dev
;
174 ether_addr_copy(edev
->ndev
->dev_addr
, mac
);
175 ether_addr_copy(edev
->primary_mac
, mac
);
178 static struct qed_eth_cb_ops qede_ll_ops
= {
180 .link_update
= qede_link_update
,
182 .force_mac
= qede_force_mac
,
185 static int qede_netdev_event(struct notifier_block
*this, unsigned long event
,
188 struct net_device
*ndev
= netdev_notifier_info_to_dev(ptr
);
189 struct ethtool_drvinfo drvinfo
;
190 struct qede_dev
*edev
;
192 /* Currently only support name change */
193 if (event
!= NETDEV_CHANGENAME
)
196 /* Check whether this is a qede device */
197 if (!ndev
|| !ndev
->ethtool_ops
|| !ndev
->ethtool_ops
->get_drvinfo
)
200 memset(&drvinfo
, 0, sizeof(drvinfo
));
201 ndev
->ethtool_ops
->get_drvinfo(ndev
, &drvinfo
);
202 if (strcmp(drvinfo
.driver
, "qede"))
204 edev
= netdev_priv(ndev
);
206 /* Notify qed of the name change */
207 if (!edev
->ops
|| !edev
->ops
->common
)
209 edev
->ops
->common
->set_id(edev
->cdev
, edev
->ndev
->name
,
216 static struct notifier_block qede_netdev_notifier
= {
217 .notifier_call
= qede_netdev_event
,
221 int __init
qede_init(void)
225 pr_info("qede_init: %s\n", version
);
227 qed_ops
= qed_get_eth_ops();
229 pr_notice("Failed to get qed ethtool operations\n");
233 /* Must register notifier before pci ops, since we might miss
234 * interface rename after pci probe and netdev registeration.
236 ret
= register_netdevice_notifier(&qede_netdev_notifier
);
238 pr_notice("Failed to register netdevice_notifier\n");
243 ret
= pci_register_driver(&qede_pci_driver
);
245 pr_notice("Failed to register driver\n");
246 unregister_netdevice_notifier(&qede_netdev_notifier
);
254 static void __exit
qede_cleanup(void)
256 if (debug
& QED_LOG_INFO_MASK
)
257 pr_info("qede_cleanup called\n");
259 unregister_netdevice_notifier(&qede_netdev_notifier
);
260 pci_unregister_driver(&qede_pci_driver
);
264 module_init(qede_init
);
265 module_exit(qede_cleanup
);
267 /* -------------------------------------------------------------------------
269 * -------------------------------------------------------------------------
272 /* Unmap the data and free skb */
273 static int qede_free_tx_pkt(struct qede_dev
*edev
,
274 struct qede_tx_queue
*txq
, int *len
)
276 u16 idx
= txq
->sw_tx_cons
& NUM_TX_BDS_MAX
;
277 struct sk_buff
*skb
= txq
->sw_tx_ring
[idx
].skb
;
278 struct eth_tx_1st_bd
*first_bd
;
279 struct eth_tx_bd
*tx_data_bd
;
280 int bds_consumed
= 0;
282 bool data_split
= txq
->sw_tx_ring
[idx
].flags
& QEDE_TSO_SPLIT_BD
;
283 int i
, split_bd_len
= 0;
285 if (unlikely(!skb
)) {
287 "skb is null for txq idx=%d txq->sw_tx_cons=%d txq->sw_tx_prod=%d\n",
288 idx
, txq
->sw_tx_cons
, txq
->sw_tx_prod
);
294 first_bd
= (struct eth_tx_1st_bd
*)qed_chain_consume(&txq
->tx_pbl
);
298 nbds
= first_bd
->data
.nbds
;
301 struct eth_tx_bd
*split
= (struct eth_tx_bd
*)
302 qed_chain_consume(&txq
->tx_pbl
);
303 split_bd_len
= BD_UNMAP_LEN(split
);
306 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(first_bd
),
307 BD_UNMAP_LEN(first_bd
) + split_bd_len
, DMA_TO_DEVICE
);
309 /* Unmap the data of the skb frags */
310 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++, bds_consumed
++) {
311 tx_data_bd
= (struct eth_tx_bd
*)
312 qed_chain_consume(&txq
->tx_pbl
);
313 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(tx_data_bd
),
314 BD_UNMAP_LEN(tx_data_bd
), DMA_TO_DEVICE
);
317 while (bds_consumed
++ < nbds
)
318 qed_chain_consume(&txq
->tx_pbl
);
321 dev_kfree_skb_any(skb
);
322 txq
->sw_tx_ring
[idx
].skb
= NULL
;
323 txq
->sw_tx_ring
[idx
].flags
= 0;
328 /* Unmap the data and free skb when mapping failed during start_xmit */
329 static void qede_free_failed_tx_pkt(struct qede_dev
*edev
,
330 struct qede_tx_queue
*txq
,
331 struct eth_tx_1st_bd
*first_bd
,
332 int nbd
, bool data_split
)
334 u16 idx
= txq
->sw_tx_prod
& NUM_TX_BDS_MAX
;
335 struct sk_buff
*skb
= txq
->sw_tx_ring
[idx
].skb
;
336 struct eth_tx_bd
*tx_data_bd
;
337 int i
, split_bd_len
= 0;
339 /* Return prod to its position before this skb was handled */
340 qed_chain_set_prod(&txq
->tx_pbl
,
341 le16_to_cpu(txq
->tx_db
.data
.bd_prod
), first_bd
);
343 first_bd
= (struct eth_tx_1st_bd
*)qed_chain_produce(&txq
->tx_pbl
);
346 struct eth_tx_bd
*split
= (struct eth_tx_bd
*)
347 qed_chain_produce(&txq
->tx_pbl
);
348 split_bd_len
= BD_UNMAP_LEN(split
);
352 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(first_bd
),
353 BD_UNMAP_LEN(first_bd
) + split_bd_len
, DMA_TO_DEVICE
);
355 /* Unmap the data of the skb frags */
356 for (i
= 0; i
< nbd
; i
++) {
357 tx_data_bd
= (struct eth_tx_bd
*)
358 qed_chain_produce(&txq
->tx_pbl
);
359 if (tx_data_bd
->nbytes
)
360 dma_unmap_page(&edev
->pdev
->dev
,
361 BD_UNMAP_ADDR(tx_data_bd
),
362 BD_UNMAP_LEN(tx_data_bd
), DMA_TO_DEVICE
);
365 /* Return again prod to its position before this skb was handled */
366 qed_chain_set_prod(&txq
->tx_pbl
,
367 le16_to_cpu(txq
->tx_db
.data
.bd_prod
), first_bd
);
370 dev_kfree_skb_any(skb
);
371 txq
->sw_tx_ring
[idx
].skb
= NULL
;
372 txq
->sw_tx_ring
[idx
].flags
= 0;
375 static u32
qede_xmit_type(struct qede_dev
*edev
,
376 struct sk_buff
*skb
, int *ipv6_ext
)
378 u32 rc
= XMIT_L4_CSUM
;
381 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
)
384 l3_proto
= vlan_get_protocol(skb
);
385 if (l3_proto
== htons(ETH_P_IPV6
) &&
386 (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_IPV6
))
389 if (skb
->encapsulation
)
398 static void qede_set_params_for_ipv6_ext(struct sk_buff
*skb
,
399 struct eth_tx_2nd_bd
*second_bd
,
400 struct eth_tx_3rd_bd
*third_bd
)
403 u16 bd2_bits1
= 0, bd2_bits2
= 0;
405 bd2_bits1
|= (1 << ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT
);
407 bd2_bits2
|= ((((u8
*)skb_transport_header(skb
) - skb
->data
) >> 1) &
408 ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK
)
409 << ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT
;
411 bd2_bits1
|= (ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH
<<
412 ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT
);
414 if (vlan_get_protocol(skb
) == htons(ETH_P_IPV6
))
415 l4_proto
= ipv6_hdr(skb
)->nexthdr
;
417 l4_proto
= ip_hdr(skb
)->protocol
;
419 if (l4_proto
== IPPROTO_UDP
)
420 bd2_bits1
|= 1 << ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT
;
423 third_bd
->data
.bitfields
|=
424 cpu_to_le16(((tcp_hdrlen(skb
) / 4) &
425 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK
) <<
426 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT
);
428 second_bd
->data
.bitfields1
= cpu_to_le16(bd2_bits1
);
429 second_bd
->data
.bitfields2
= cpu_to_le16(bd2_bits2
);
432 static int map_frag_to_bd(struct qede_dev
*edev
,
433 skb_frag_t
*frag
, struct eth_tx_bd
*bd
)
437 /* Map skb non-linear frag data for DMA */
438 mapping
= skb_frag_dma_map(&edev
->pdev
->dev
, frag
, 0,
439 skb_frag_size(frag
), DMA_TO_DEVICE
);
440 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
441 DP_NOTICE(edev
, "Unable to map frag - dropping packet\n");
445 /* Setup the data pointer of the frag data */
446 BD_SET_UNMAP_ADDR_LEN(bd
, mapping
, skb_frag_size(frag
));
451 static u16
qede_get_skb_hlen(struct sk_buff
*skb
, bool is_encap_pkt
)
454 return (skb_inner_transport_header(skb
) +
455 inner_tcp_hdrlen(skb
) - skb
->data
);
457 return (skb_transport_header(skb
) +
458 tcp_hdrlen(skb
) - skb
->data
);
461 /* +2 for 1st BD for headers and 2nd BD for headlen (if required) */
462 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
463 static bool qede_pkt_req_lin(struct qede_dev
*edev
, struct sk_buff
*skb
,
466 int allowed_frags
= ETH_TX_MAX_BDS_PER_NON_LSO_PACKET
- 1;
468 if (xmit_type
& XMIT_LSO
) {
471 hlen
= qede_get_skb_hlen(skb
, xmit_type
& XMIT_ENC
);
473 /* linear payload would require its own BD */
474 if (skb_headlen(skb
) > hlen
)
478 return (skb_shinfo(skb
)->nr_frags
> allowed_frags
);
482 static inline void qede_update_tx_producer(struct qede_tx_queue
*txq
)
484 /* wmb makes sure that the BDs data is updated before updating the
485 * producer, otherwise FW may read old data from the BDs.
489 writel(txq
->tx_db
.raw
, txq
->doorbell_addr
);
491 /* mmiowb is needed to synchronize doorbell writes from more than one
492 * processor. It guarantees that the write arrives to the device before
493 * the queue lock is released and another start_xmit is called (possibly
494 * on another CPU). Without this barrier, the next doorbell can bypass
495 * this doorbell. This is applicable to IA64/Altix systems.
500 /* Main transmit function */
501 static netdev_tx_t
qede_start_xmit(struct sk_buff
*skb
,
502 struct net_device
*ndev
)
504 struct qede_dev
*edev
= netdev_priv(ndev
);
505 struct netdev_queue
*netdev_txq
;
506 struct qede_tx_queue
*txq
;
507 struct eth_tx_1st_bd
*first_bd
;
508 struct eth_tx_2nd_bd
*second_bd
= NULL
;
509 struct eth_tx_3rd_bd
*third_bd
= NULL
;
510 struct eth_tx_bd
*tx_data_bd
= NULL
;
514 int rc
, frag_idx
= 0, ipv6_ext
= 0;
518 bool data_split
= false;
520 /* Get tx-queue context and netdev index */
521 txq_index
= skb_get_queue_mapping(skb
);
522 WARN_ON(txq_index
>= QEDE_TSS_COUNT(edev
));
523 txq
= QEDE_TX_QUEUE(edev
, txq_index
);
524 netdev_txq
= netdev_get_tx_queue(ndev
, txq_index
);
526 WARN_ON(qed_chain_get_elem_left(&txq
->tx_pbl
) < (MAX_SKB_FRAGS
+ 1));
528 xmit_type
= qede_xmit_type(edev
, skb
, &ipv6_ext
);
530 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
531 if (qede_pkt_req_lin(edev
, skb
, xmit_type
)) {
532 if (skb_linearize(skb
)) {
534 "SKB linearization failed - silently dropping this SKB\n");
535 dev_kfree_skb_any(skb
);
541 /* Fill the entry in the SW ring and the BDs in the FW ring */
542 idx
= txq
->sw_tx_prod
& NUM_TX_BDS_MAX
;
543 txq
->sw_tx_ring
[idx
].skb
= skb
;
544 first_bd
= (struct eth_tx_1st_bd
*)
545 qed_chain_produce(&txq
->tx_pbl
);
546 memset(first_bd
, 0, sizeof(*first_bd
));
547 first_bd
->data
.bd_flags
.bitfields
=
548 1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT
;
550 /* Map skb linear data for DMA and set in the first BD */
551 mapping
= dma_map_single(&edev
->pdev
->dev
, skb
->data
,
552 skb_headlen(skb
), DMA_TO_DEVICE
);
553 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
554 DP_NOTICE(edev
, "SKB mapping failed\n");
555 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, 0, false);
556 qede_update_tx_producer(txq
);
560 BD_SET_UNMAP_ADDR_LEN(first_bd
, mapping
, skb_headlen(skb
));
562 /* In case there is IPv6 with extension headers or LSO we need 2nd and
565 if (unlikely((xmit_type
& XMIT_LSO
) | ipv6_ext
)) {
566 second_bd
= (struct eth_tx_2nd_bd
*)
567 qed_chain_produce(&txq
->tx_pbl
);
568 memset(second_bd
, 0, sizeof(*second_bd
));
571 third_bd
= (struct eth_tx_3rd_bd
*)
572 qed_chain_produce(&txq
->tx_pbl
);
573 memset(third_bd
, 0, sizeof(*third_bd
));
576 /* We need to fill in additional data in second_bd... */
577 tx_data_bd
= (struct eth_tx_bd
*)second_bd
;
580 if (skb_vlan_tag_present(skb
)) {
581 first_bd
->data
.vlan
= cpu_to_le16(skb_vlan_tag_get(skb
));
582 first_bd
->data
.bd_flags
.bitfields
|=
583 1 << ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT
;
586 /* Fill the parsing flags & params according to the requested offload */
587 if (xmit_type
& XMIT_L4_CSUM
) {
588 /* We don't re-calculate IP checksum as it is already done by
591 first_bd
->data
.bd_flags
.bitfields
|=
592 1 << ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT
;
594 if (xmit_type
& XMIT_ENC
) {
595 first_bd
->data
.bd_flags
.bitfields
|=
596 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT
;
597 first_bd
->data
.bitfields
|=
598 1 << ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT
;
601 /* Legacy FW had flipped behavior in regard to this bit -
602 * I.e., needed to set to prevent FW from touching encapsulated
603 * packets when it didn't need to.
605 if (unlikely(txq
->is_legacy
))
606 first_bd
->data
.bitfields
^=
607 1 << ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT
;
609 /* If the packet is IPv6 with extension header, indicate that
610 * to FW and pass few params, since the device cracker doesn't
611 * support parsing IPv6 with extension header/s.
613 if (unlikely(ipv6_ext
))
614 qede_set_params_for_ipv6_ext(skb
, second_bd
, third_bd
);
617 if (xmit_type
& XMIT_LSO
) {
618 first_bd
->data
.bd_flags
.bitfields
|=
619 (1 << ETH_TX_1ST_BD_FLAGS_LSO_SHIFT
);
620 third_bd
->data
.lso_mss
=
621 cpu_to_le16(skb_shinfo(skb
)->gso_size
);
623 if (unlikely(xmit_type
& XMIT_ENC
)) {
624 first_bd
->data
.bd_flags
.bitfields
|=
625 1 << ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT
;
626 hlen
= qede_get_skb_hlen(skb
, true);
628 first_bd
->data
.bd_flags
.bitfields
|=
629 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT
;
630 hlen
= qede_get_skb_hlen(skb
, false);
633 /* @@@TBD - if will not be removed need to check */
634 third_bd
->data
.bitfields
|=
635 cpu_to_le16((1 << ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT
));
637 /* Make life easier for FW guys who can't deal with header and
638 * data on same BD. If we need to split, use the second bd...
640 if (unlikely(skb_headlen(skb
) > hlen
)) {
641 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
642 "TSO split header size is %d (%x:%x)\n",
643 first_bd
->nbytes
, first_bd
->addr
.hi
,
646 mapping
= HILO_U64(le32_to_cpu(first_bd
->addr
.hi
),
647 le32_to_cpu(first_bd
->addr
.lo
)) +
650 BD_SET_UNMAP_ADDR_LEN(tx_data_bd
, mapping
,
651 le16_to_cpu(first_bd
->nbytes
) -
654 /* this marks the BD as one that has no
657 txq
->sw_tx_ring
[idx
].flags
|= QEDE_TSO_SPLIT_BD
;
659 first_bd
->nbytes
= cpu_to_le16(hlen
);
661 tx_data_bd
= (struct eth_tx_bd
*)third_bd
;
665 first_bd
->data
.bitfields
|=
666 (skb
->len
& ETH_TX_DATA_1ST_BD_PKT_LEN_MASK
) <<
667 ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT
;
670 /* Handle fragmented skb */
671 /* special handle for frags inside 2nd and 3rd bds.. */
672 while (tx_data_bd
&& frag_idx
< skb_shinfo(skb
)->nr_frags
) {
673 rc
= map_frag_to_bd(edev
,
674 &skb_shinfo(skb
)->frags
[frag_idx
],
677 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, nbd
,
679 qede_update_tx_producer(txq
);
683 if (tx_data_bd
== (struct eth_tx_bd
*)second_bd
)
684 tx_data_bd
= (struct eth_tx_bd
*)third_bd
;
691 /* map last frags into 4th, 5th .... */
692 for (; frag_idx
< skb_shinfo(skb
)->nr_frags
; frag_idx
++, nbd
++) {
693 tx_data_bd
= (struct eth_tx_bd
*)
694 qed_chain_produce(&txq
->tx_pbl
);
696 memset(tx_data_bd
, 0, sizeof(*tx_data_bd
));
698 rc
= map_frag_to_bd(edev
,
699 &skb_shinfo(skb
)->frags
[frag_idx
],
702 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, nbd
,
704 qede_update_tx_producer(txq
);
709 /* update the first BD with the actual num BDs */
710 first_bd
->data
.nbds
= nbd
;
712 netdev_tx_sent_queue(netdev_txq
, skb
->len
);
714 skb_tx_timestamp(skb
);
716 /* Advance packet producer only before sending the packet since mapping
721 /* 'next page' entries are counted in the producer value */
722 txq
->tx_db
.data
.bd_prod
=
723 cpu_to_le16(qed_chain_get_prod_idx(&txq
->tx_pbl
));
725 if (!skb
->xmit_more
|| netif_xmit_stopped(netdev_txq
))
726 qede_update_tx_producer(txq
);
728 if (unlikely(qed_chain_get_elem_left(&txq
->tx_pbl
)
729 < (MAX_SKB_FRAGS
+ 1))) {
731 qede_update_tx_producer(txq
);
733 netif_tx_stop_queue(netdev_txq
);
735 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
736 "Stop queue was called\n");
737 /* paired memory barrier is in qede_tx_int(), we have to keep
738 * ordering of set_bit() in netif_tx_stop_queue() and read of
743 if (qed_chain_get_elem_left(&txq
->tx_pbl
)
744 >= (MAX_SKB_FRAGS
+ 1) &&
745 (edev
->state
== QEDE_STATE_OPEN
)) {
746 netif_tx_wake_queue(netdev_txq
);
747 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
748 "Wake queue was called\n");
755 int qede_txq_has_work(struct qede_tx_queue
*txq
)
759 /* Tell compiler that consumer and producer can change */
761 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
762 if (qed_chain_get_cons_idx(&txq
->tx_pbl
) == hw_bd_cons
+ 1)
765 return hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
);
768 static int qede_tx_int(struct qede_dev
*edev
, struct qede_tx_queue
*txq
)
770 struct netdev_queue
*netdev_txq
;
772 unsigned int pkts_compl
= 0, bytes_compl
= 0;
775 netdev_txq
= netdev_get_tx_queue(edev
->ndev
, txq
->index
);
777 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
780 while (hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
)) {
783 rc
= qede_free_tx_pkt(edev
, txq
, &len
);
785 DP_NOTICE(edev
, "hw_bd_cons = %d, chain_cons=%d\n",
787 qed_chain_get_cons_idx(&txq
->tx_pbl
));
797 netdev_tx_completed_queue(netdev_txq
, pkts_compl
, bytes_compl
);
799 /* Need to make the tx_bd_cons update visible to start_xmit()
800 * before checking for netif_tx_queue_stopped(). Without the
801 * memory barrier, there is a small possibility that
802 * start_xmit() will miss it and cause the queue to be stopped
804 * On the other hand we need an rmb() here to ensure the proper
805 * ordering of bit testing in the following
806 * netif_tx_queue_stopped(txq) call.
810 if (unlikely(netif_tx_queue_stopped(netdev_txq
))) {
811 /* Taking tx_lock is needed to prevent reenabling the queue
812 * while it's empty. This could have happen if rx_action() gets
813 * suspended in qede_tx_int() after the condition before
814 * netif_tx_wake_queue(), while tx_action (qede_start_xmit()):
816 * stops the queue->sees fresh tx_bd_cons->releases the queue->
817 * sends some packets consuming the whole queue again->
821 __netif_tx_lock(netdev_txq
, smp_processor_id());
823 if ((netif_tx_queue_stopped(netdev_txq
)) &&
824 (edev
->state
== QEDE_STATE_OPEN
) &&
825 (qed_chain_get_elem_left(&txq
->tx_pbl
)
826 >= (MAX_SKB_FRAGS
+ 1))) {
827 netif_tx_wake_queue(netdev_txq
);
828 DP_VERBOSE(edev
, NETIF_MSG_TX_DONE
,
829 "Wake queue was called\n");
832 __netif_tx_unlock(netdev_txq
);
838 bool qede_has_rx_work(struct qede_rx_queue
*rxq
)
840 u16 hw_comp_cons
, sw_comp_cons
;
842 /* Tell compiler that status block fields can change */
845 hw_comp_cons
= le16_to_cpu(*rxq
->hw_cons_ptr
);
846 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
848 return hw_comp_cons
!= sw_comp_cons
;
851 static bool qede_has_tx_work(struct qede_fastpath
*fp
)
855 for (tc
= 0; tc
< fp
->edev
->num_tc
; tc
++)
856 if (qede_txq_has_work(&fp
->txqs
[tc
]))
861 static inline void qede_rx_bd_ring_consume(struct qede_rx_queue
*rxq
)
863 qed_chain_consume(&rxq
->rx_bd_ring
);
867 /* This function reuses the buffer(from an offset) from
868 * consumer index to producer index in the bd ring
870 static inline void qede_reuse_page(struct qede_dev
*edev
,
871 struct qede_rx_queue
*rxq
,
872 struct sw_rx_data
*curr_cons
)
874 struct eth_rx_bd
*rx_bd_prod
= qed_chain_produce(&rxq
->rx_bd_ring
);
875 struct sw_rx_data
*curr_prod
;
876 dma_addr_t new_mapping
;
878 curr_prod
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
879 *curr_prod
= *curr_cons
;
881 new_mapping
= curr_prod
->mapping
+ curr_prod
->page_offset
;
883 rx_bd_prod
->addr
.hi
= cpu_to_le32(upper_32_bits(new_mapping
));
884 rx_bd_prod
->addr
.lo
= cpu_to_le32(lower_32_bits(new_mapping
));
887 curr_cons
->data
= NULL
;
890 /* In case of allocation failures reuse buffers
891 * from consumer index to produce buffers for firmware
893 void qede_recycle_rx_bd_ring(struct qede_rx_queue
*rxq
,
894 struct qede_dev
*edev
, u8 count
)
896 struct sw_rx_data
*curr_cons
;
898 for (; count
> 0; count
--) {
899 curr_cons
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
];
900 qede_reuse_page(edev
, rxq
, curr_cons
);
901 qede_rx_bd_ring_consume(rxq
);
905 static inline int qede_realloc_rx_buffer(struct qede_dev
*edev
,
906 struct qede_rx_queue
*rxq
,
907 struct sw_rx_data
*curr_cons
)
909 /* Move to the next segment in the page */
910 curr_cons
->page_offset
+= rxq
->rx_buf_seg_size
;
912 if (curr_cons
->page_offset
== PAGE_SIZE
) {
913 if (unlikely(qede_alloc_rx_buffer(edev
, rxq
))) {
914 /* Since we failed to allocate new buffer
915 * current buffer can be used again.
917 curr_cons
->page_offset
-= rxq
->rx_buf_seg_size
;
922 dma_unmap_page(&edev
->pdev
->dev
, curr_cons
->mapping
,
923 PAGE_SIZE
, DMA_FROM_DEVICE
);
925 /* Increment refcount of the page as we don't want
926 * network stack to take the ownership of the page
927 * which can be recycled multiple times by the driver.
929 page_ref_inc(curr_cons
->data
);
930 qede_reuse_page(edev
, rxq
, curr_cons
);
936 static inline void qede_update_rx_prod(struct qede_dev
*edev
,
937 struct qede_rx_queue
*rxq
)
939 u16 bd_prod
= qed_chain_get_prod_idx(&rxq
->rx_bd_ring
);
940 u16 cqe_prod
= qed_chain_get_prod_idx(&rxq
->rx_comp_ring
);
941 struct eth_rx_prod_data rx_prods
= {0};
943 /* Update producers */
944 rx_prods
.bd_prod
= cpu_to_le16(bd_prod
);
945 rx_prods
.cqe_prod
= cpu_to_le16(cqe_prod
);
947 /* Make sure that the BD and SGE data is updated before updating the
948 * producers since FW might read the BD/SGE right after the producer
953 internal_ram_wr(rxq
->hw_rxq_prod_addr
, sizeof(rx_prods
),
956 /* mmiowb is needed to synchronize doorbell writes from more than one
957 * processor. It guarantees that the write arrives to the device before
958 * the napi lock is released and another qede_poll is called (possibly
959 * on another CPU). Without this barrier, the next doorbell can bypass
960 * this doorbell. This is applicable to IA64/Altix systems.
965 static u32
qede_get_rxhash(struct qede_dev
*edev
,
967 __le32 rss_hash
, enum pkt_hash_types
*rxhash_type
)
969 enum rss_hash_type htype
;
971 htype
= GET_FIELD(bitfields
, ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE
);
973 if ((edev
->ndev
->features
& NETIF_F_RXHASH
) && htype
) {
974 *rxhash_type
= ((htype
== RSS_HASH_TYPE_IPV4
) ||
975 (htype
== RSS_HASH_TYPE_IPV6
)) ?
976 PKT_HASH_TYPE_L3
: PKT_HASH_TYPE_L4
;
977 return le32_to_cpu(rss_hash
);
979 *rxhash_type
= PKT_HASH_TYPE_NONE
;
983 static void qede_set_skb_csum(struct sk_buff
*skb
, u8 csum_flag
)
985 skb_checksum_none_assert(skb
);
987 if (csum_flag
& QEDE_CSUM_UNNECESSARY
)
988 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
990 if (csum_flag
& QEDE_TUNN_CSUM_UNNECESSARY
)
994 static inline void qede_skb_receive(struct qede_dev
*edev
,
995 struct qede_fastpath
*fp
,
996 struct sk_buff
*skb
, u16 vlan_tag
)
999 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
), vlan_tag
);
1001 napi_gro_receive(&fp
->napi
, skb
);
1004 static void qede_set_gro_params(struct qede_dev
*edev
,
1005 struct sk_buff
*skb
,
1006 struct eth_fast_path_rx_tpa_start_cqe
*cqe
)
1008 u16 parsing_flags
= le16_to_cpu(cqe
->pars_flags
.flags
);
1010 if (((parsing_flags
>> PARSING_AND_ERR_FLAGS_L3TYPE_SHIFT
) &
1011 PARSING_AND_ERR_FLAGS_L3TYPE_MASK
) == 2)
1012 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV6
;
1014 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV4
;
1016 skb_shinfo(skb
)->gso_size
= __le16_to_cpu(cqe
->len_on_first_bd
) -
1020 static int qede_fill_frag_skb(struct qede_dev
*edev
,
1021 struct qede_rx_queue
*rxq
,
1022 u8 tpa_agg_index
, u16 len_on_bd
)
1024 struct sw_rx_data
*current_bd
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
&
1026 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[tpa_agg_index
];
1027 struct sk_buff
*skb
= tpa_info
->skb
;
1029 if (unlikely(tpa_info
->agg_state
!= QEDE_AGG_STATE_START
))
1032 /* Add one frag and update the appropriate fields in the skb */
1033 skb_fill_page_desc(skb
, tpa_info
->frag_id
++,
1034 current_bd
->data
, current_bd
->page_offset
,
1037 if (unlikely(qede_realloc_rx_buffer(edev
, rxq
, current_bd
))) {
1038 /* Incr page ref count to reuse on allocation failure
1039 * so that it doesn't get freed while freeing SKB.
1041 page_ref_inc(current_bd
->data
);
1045 qed_chain_consume(&rxq
->rx_bd_ring
);
1048 skb
->data_len
+= len_on_bd
;
1049 skb
->truesize
+= rxq
->rx_buf_seg_size
;
1050 skb
->len
+= len_on_bd
;
1055 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
1056 qede_recycle_rx_bd_ring(rxq
, edev
, 1);
1060 static void qede_tpa_start(struct qede_dev
*edev
,
1061 struct qede_rx_queue
*rxq
,
1062 struct eth_fast_path_rx_tpa_start_cqe
*cqe
)
1064 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[cqe
->tpa_agg_index
];
1065 struct eth_rx_bd
*rx_bd_cons
= qed_chain_consume(&rxq
->rx_bd_ring
);
1066 struct eth_rx_bd
*rx_bd_prod
= qed_chain_produce(&rxq
->rx_bd_ring
);
1067 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
1068 dma_addr_t mapping
= tpa_info
->replace_buf_mapping
;
1069 struct sw_rx_data
*sw_rx_data_cons
;
1070 struct sw_rx_data
*sw_rx_data_prod
;
1071 enum pkt_hash_types rxhash_type
;
1074 sw_rx_data_cons
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
];
1075 sw_rx_data_prod
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
1077 /* Use pre-allocated replacement buffer - we can't release the agg.
1078 * start until its over and we don't want to risk allocation failing
1079 * here, so re-allocate when aggregation will be over.
1081 sw_rx_data_prod
->mapping
= replace_buf
->mapping
;
1083 sw_rx_data_prod
->data
= replace_buf
->data
;
1084 rx_bd_prod
->addr
.hi
= cpu_to_le32(upper_32_bits(mapping
));
1085 rx_bd_prod
->addr
.lo
= cpu_to_le32(lower_32_bits(mapping
));
1086 sw_rx_data_prod
->page_offset
= replace_buf
->page_offset
;
1090 /* move partial skb from cons to pool (don't unmap yet)
1091 * save mapping, incase we drop the packet later on.
1093 tpa_info
->start_buf
= *sw_rx_data_cons
;
1094 mapping
= HILO_U64(le32_to_cpu(rx_bd_cons
->addr
.hi
),
1095 le32_to_cpu(rx_bd_cons
->addr
.lo
));
1097 tpa_info
->start_buf_mapping
= mapping
;
1100 /* set tpa state to start only if we are able to allocate skb
1101 * for this aggregation, otherwise mark as error and aggregation will
1104 tpa_info
->skb
= netdev_alloc_skb(edev
->ndev
,
1105 le16_to_cpu(cqe
->len_on_first_bd
));
1106 if (unlikely(!tpa_info
->skb
)) {
1107 DP_NOTICE(edev
, "Failed to allocate SKB for gro\n");
1108 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
1112 skb_put(tpa_info
->skb
, le16_to_cpu(cqe
->len_on_first_bd
));
1113 memcpy(&tpa_info
->start_cqe
, cqe
, sizeof(tpa_info
->start_cqe
));
1115 /* Start filling in the aggregation info */
1116 tpa_info
->frag_id
= 0;
1117 tpa_info
->agg_state
= QEDE_AGG_STATE_START
;
1119 rxhash
= qede_get_rxhash(edev
, cqe
->bitfields
,
1120 cqe
->rss_hash
, &rxhash_type
);
1121 skb_set_hash(tpa_info
->skb
, rxhash
, rxhash_type
);
1122 if ((le16_to_cpu(cqe
->pars_flags
.flags
) >>
1123 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT
) &
1124 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK
)
1125 tpa_info
->vlan_tag
= le16_to_cpu(cqe
->vlan_tag
);
1127 tpa_info
->vlan_tag
= 0;
1129 /* This is needed in order to enable forwarding support */
1130 qede_set_gro_params(edev
, tpa_info
->skb
, cqe
);
1132 cons_buf
: /* We still need to handle bd_len_list to consume buffers */
1133 if (likely(cqe
->ext_bd_len_list
[0]))
1134 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1135 le16_to_cpu(cqe
->ext_bd_len_list
[0]));
1137 if (unlikely(cqe
->ext_bd_len_list
[1])) {
1139 "Unlikely - got a TPA aggregation with more than one ext_bd_len_list entry in the TPA start\n");
1140 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
1145 static void qede_gro_ip_csum(struct sk_buff
*skb
)
1147 const struct iphdr
*iph
= ip_hdr(skb
);
1150 skb_set_transport_header(skb
, sizeof(struct iphdr
));
1153 th
->check
= ~tcp_v4_check(skb
->len
- skb_transport_offset(skb
),
1154 iph
->saddr
, iph
->daddr
, 0);
1156 tcp_gro_complete(skb
);
1159 static void qede_gro_ipv6_csum(struct sk_buff
*skb
)
1161 struct ipv6hdr
*iph
= ipv6_hdr(skb
);
1164 skb_set_transport_header(skb
, sizeof(struct ipv6hdr
));
1167 th
->check
= ~tcp_v6_check(skb
->len
- skb_transport_offset(skb
),
1168 &iph
->saddr
, &iph
->daddr
, 0);
1169 tcp_gro_complete(skb
);
1173 static void qede_gro_receive(struct qede_dev
*edev
,
1174 struct qede_fastpath
*fp
,
1175 struct sk_buff
*skb
,
1178 /* FW can send a single MTU sized packet from gro flow
1179 * due to aggregation timeout/last segment etc. which
1180 * is not expected to be a gro packet. If a skb has zero
1181 * frags then simply push it in the stack as non gso skb.
1183 if (unlikely(!skb
->data_len
)) {
1184 skb_shinfo(skb
)->gso_type
= 0;
1185 skb_shinfo(skb
)->gso_size
= 0;
1190 if (skb_shinfo(skb
)->gso_size
) {
1191 skb_set_network_header(skb
, 0);
1193 switch (skb
->protocol
) {
1194 case htons(ETH_P_IP
):
1195 qede_gro_ip_csum(skb
);
1197 case htons(ETH_P_IPV6
):
1198 qede_gro_ipv6_csum(skb
);
1202 "Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n",
1203 ntohs(skb
->protocol
));
1209 skb_record_rx_queue(skb
, fp
->rxq
->rxq_id
);
1210 qede_skb_receive(edev
, fp
, skb
, vlan_tag
);
1213 static inline void qede_tpa_cont(struct qede_dev
*edev
,
1214 struct qede_rx_queue
*rxq
,
1215 struct eth_fast_path_rx_tpa_cont_cqe
*cqe
)
1219 for (i
= 0; cqe
->len_list
[i
]; i
++)
1220 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1221 le16_to_cpu(cqe
->len_list
[i
]));
1223 if (unlikely(i
> 1))
1225 "Strange - TPA cont with more than a single len_list entry\n");
1228 static void qede_tpa_end(struct qede_dev
*edev
,
1229 struct qede_fastpath
*fp
,
1230 struct eth_fast_path_rx_tpa_end_cqe
*cqe
)
1232 struct qede_rx_queue
*rxq
= fp
->rxq
;
1233 struct qede_agg_info
*tpa_info
;
1234 struct sk_buff
*skb
;
1237 tpa_info
= &rxq
->tpa_info
[cqe
->tpa_agg_index
];
1238 skb
= tpa_info
->skb
;
1240 for (i
= 0; cqe
->len_list
[i
]; i
++)
1241 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1242 le16_to_cpu(cqe
->len_list
[i
]));
1243 if (unlikely(i
> 1))
1245 "Strange - TPA emd with more than a single len_list entry\n");
1247 if (unlikely(tpa_info
->agg_state
!= QEDE_AGG_STATE_START
))
1251 if (unlikely(cqe
->num_of_bds
!= tpa_info
->frag_id
+ 1))
1253 "Strange - TPA had %02x BDs, but SKB has only %d frags\n",
1254 cqe
->num_of_bds
, tpa_info
->frag_id
);
1255 if (unlikely(skb
->len
!= le16_to_cpu(cqe
->total_packet_len
)))
1257 "Strange - total packet len [cqe] is %4x but SKB has len %04x\n",
1258 le16_to_cpu(cqe
->total_packet_len
), skb
->len
);
1261 page_address(tpa_info
->start_buf
.data
) +
1262 tpa_info
->start_cqe
.placement_offset
+
1263 tpa_info
->start_buf
.page_offset
,
1264 le16_to_cpu(tpa_info
->start_cqe
.len_on_first_bd
));
1266 /* Recycle [mapped] start buffer for the next replacement */
1267 tpa_info
->replace_buf
= tpa_info
->start_buf
;
1268 tpa_info
->replace_buf_mapping
= tpa_info
->start_buf_mapping
;
1270 /* Finalize the SKB */
1271 skb
->protocol
= eth_type_trans(skb
, edev
->ndev
);
1272 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
1274 /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count
1275 * to skb_shinfo(skb)->gso_segs
1277 NAPI_GRO_CB(skb
)->count
= le16_to_cpu(cqe
->num_of_coalesced_segs
);
1279 qede_gro_receive(edev
, fp
, skb
, tpa_info
->vlan_tag
);
1281 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
1285 /* The BD starting the aggregation is still mapped; Re-use it for
1286 * future aggregations [as replacement buffer]
1288 memcpy(&tpa_info
->replace_buf
, &tpa_info
->start_buf
,
1289 sizeof(struct sw_rx_data
));
1290 tpa_info
->replace_buf_mapping
= tpa_info
->start_buf_mapping
;
1291 tpa_info
->start_buf
.data
= NULL
;
1292 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
1293 dev_kfree_skb_any(tpa_info
->skb
);
1294 tpa_info
->skb
= NULL
;
1297 static bool qede_tunn_exist(u16 flag
)
1299 return !!(flag
& (PARSING_AND_ERR_FLAGS_TUNNELEXIST_MASK
<<
1300 PARSING_AND_ERR_FLAGS_TUNNELEXIST_SHIFT
));
1303 static u8
qede_check_tunn_csum(u16 flag
)
1308 if (flag
& (PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_MASK
<<
1309 PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_SHIFT
))
1310 csum_flag
|= PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_MASK
<<
1311 PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_SHIFT
;
1313 if (flag
& (PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK
<<
1314 PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT
)) {
1315 csum_flag
|= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK
<<
1316 PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT
;
1317 tcsum
= QEDE_TUNN_CSUM_UNNECESSARY
;
1320 csum_flag
|= PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_MASK
<<
1321 PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_SHIFT
|
1322 PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK
<<
1323 PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT
;
1325 if (csum_flag
& flag
)
1326 return QEDE_CSUM_ERROR
;
1328 return QEDE_CSUM_UNNECESSARY
| tcsum
;
1331 static u8
qede_check_notunn_csum(u16 flag
)
1336 if (flag
& (PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK
<<
1337 PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT
)) {
1338 csum_flag
|= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK
<<
1339 PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT
;
1340 csum
= QEDE_CSUM_UNNECESSARY
;
1343 csum_flag
|= PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK
<<
1344 PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT
;
1346 if (csum_flag
& flag
)
1347 return QEDE_CSUM_ERROR
;
1352 static u8
qede_check_csum(u16 flag
)
1354 if (!qede_tunn_exist(flag
))
1355 return qede_check_notunn_csum(flag
);
1357 return qede_check_tunn_csum(flag
);
1360 static bool qede_pkt_is_ip_fragmented(struct eth_fast_path_rx_reg_cqe
*cqe
,
1363 u8 tun_pars_flg
= cqe
->tunnel_pars_flags
.flags
;
1365 if ((tun_pars_flg
& (ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_MASK
<<
1366 ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_SHIFT
)) ||
1367 (flag
& (PARSING_AND_ERR_FLAGS_IPV4FRAG_MASK
<<
1368 PARSING_AND_ERR_FLAGS_IPV4FRAG_SHIFT
)))
1374 static int qede_rx_int(struct qede_fastpath
*fp
, int budget
)
1376 struct qede_dev
*edev
= fp
->edev
;
1377 struct qede_rx_queue
*rxq
= fp
->rxq
;
1379 u16 hw_comp_cons
, sw_comp_cons
, sw_rx_index
, parse_flag
;
1383 hw_comp_cons
= le16_to_cpu(*rxq
->hw_cons_ptr
);
1384 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
1386 /* Memory barrier to prevent the CPU from doing speculative reads of CQE
1387 * / BD in the while-loop before reading hw_comp_cons. If the CQE is
1388 * read before it is written by FW, then FW writes CQE and SB, and then
1389 * the CPU reads the hw_comp_cons, it will use an old CQE.
1393 /* Loop to complete all indicated BDs */
1394 while (sw_comp_cons
!= hw_comp_cons
) {
1395 struct eth_fast_path_rx_reg_cqe
*fp_cqe
;
1396 enum pkt_hash_types rxhash_type
;
1397 enum eth_rx_cqe_type cqe_type
;
1398 struct sw_rx_data
*sw_rx_data
;
1399 union eth_rx_cqe
*cqe
;
1400 struct sk_buff
*skb
;
1406 /* Get the CQE from the completion ring */
1407 cqe
= (union eth_rx_cqe
*)
1408 qed_chain_consume(&rxq
->rx_comp_ring
);
1409 cqe_type
= cqe
->fast_path_regular
.type
;
1411 if (unlikely(cqe_type
== ETH_RX_CQE_TYPE_SLOW_PATH
)) {
1412 edev
->ops
->eth_cqe_completion(
1414 (struct eth_slow_path_rx_cqe
*)cqe
);
1418 if (cqe_type
!= ETH_RX_CQE_TYPE_REGULAR
) {
1420 case ETH_RX_CQE_TYPE_TPA_START
:
1421 qede_tpa_start(edev
, rxq
,
1422 &cqe
->fast_path_tpa_start
);
1424 case ETH_RX_CQE_TYPE_TPA_CONT
:
1425 qede_tpa_cont(edev
, rxq
,
1426 &cqe
->fast_path_tpa_cont
);
1428 case ETH_RX_CQE_TYPE_TPA_END
:
1429 qede_tpa_end(edev
, fp
,
1430 &cqe
->fast_path_tpa_end
);
1437 /* Get the data from the SW ring */
1438 sw_rx_index
= rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
;
1439 sw_rx_data
= &rxq
->sw_rx_ring
[sw_rx_index
];
1440 data
= sw_rx_data
->data
;
1442 fp_cqe
= &cqe
->fast_path_regular
;
1443 len
= le16_to_cpu(fp_cqe
->len_on_first_bd
);
1444 pad
= fp_cqe
->placement_offset
;
1445 flags
= cqe
->fast_path_regular
.pars_flags
.flags
;
1447 /* If this is an error packet then drop it */
1448 parse_flag
= le16_to_cpu(flags
);
1450 csum_flag
= qede_check_csum(parse_flag
);
1451 if (unlikely(csum_flag
== QEDE_CSUM_ERROR
)) {
1452 if (qede_pkt_is_ip_fragmented(&cqe
->fast_path_regular
,
1459 "CQE in CONS = %u has error, flags = %x, dropping incoming packet\n",
1460 sw_comp_cons
, parse_flag
);
1461 rxq
->rx_hw_errors
++;
1462 qede_recycle_rx_bd_ring(rxq
, edev
, fp_cqe
->bd_num
);
1467 skb
= netdev_alloc_skb(edev
->ndev
, QEDE_RX_HDR_SIZE
);
1468 if (unlikely(!skb
)) {
1470 "skb allocation failed, dropping incoming packet\n");
1471 qede_recycle_rx_bd_ring(rxq
, edev
, fp_cqe
->bd_num
);
1472 rxq
->rx_alloc_errors
++;
1476 /* Copy data into SKB */
1477 if (len
+ pad
<= edev
->rx_copybreak
) {
1478 memcpy(skb_put(skb
, len
),
1479 page_address(data
) + pad
+
1480 sw_rx_data
->page_offset
, len
);
1481 qede_reuse_page(edev
, rxq
, sw_rx_data
);
1483 struct skb_frag_struct
*frag
;
1484 unsigned int pull_len
;
1487 frag
= &skb_shinfo(skb
)->frags
[0];
1489 skb_add_rx_frag(skb
, skb_shinfo(skb
)->nr_frags
, data
,
1490 pad
+ sw_rx_data
->page_offset
,
1491 len
, rxq
->rx_buf_seg_size
);
1493 va
= skb_frag_address(frag
);
1494 pull_len
= eth_get_headlen(va
, QEDE_RX_HDR_SIZE
);
1496 /* Align the pull_len to optimize memcpy */
1497 memcpy(skb
->data
, va
, ALIGN(pull_len
, sizeof(long)));
1499 skb_frag_size_sub(frag
, pull_len
);
1500 frag
->page_offset
+= pull_len
;
1501 skb
->data_len
-= pull_len
;
1502 skb
->tail
+= pull_len
;
1504 if (unlikely(qede_realloc_rx_buffer(edev
, rxq
,
1506 DP_ERR(edev
, "Failed to allocate rx buffer\n");
1507 /* Incr page ref count to reuse on allocation
1508 * failure so that it doesn't get freed while
1512 page_ref_inc(sw_rx_data
->data
);
1513 rxq
->rx_alloc_errors
++;
1514 qede_recycle_rx_bd_ring(rxq
, edev
,
1516 dev_kfree_skb_any(skb
);
1521 qede_rx_bd_ring_consume(rxq
);
1523 if (fp_cqe
->bd_num
!= 1) {
1524 u16 pkt_len
= le16_to_cpu(fp_cqe
->pkt_len
);
1529 for (num_frags
= fp_cqe
->bd_num
- 1; num_frags
> 0;
1531 u16 cur_size
= pkt_len
> rxq
->rx_buf_size
?
1532 rxq
->rx_buf_size
: pkt_len
;
1533 if (unlikely(!cur_size
)) {
1535 "Still got %d BDs for mapping jumbo, but length became 0\n",
1537 qede_recycle_rx_bd_ring(rxq
, edev
,
1539 dev_kfree_skb_any(skb
);
1543 if (unlikely(qede_alloc_rx_buffer(edev
, rxq
))) {
1544 qede_recycle_rx_bd_ring(rxq
, edev
,
1546 dev_kfree_skb_any(skb
);
1550 sw_rx_index
= rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
;
1551 sw_rx_data
= &rxq
->sw_rx_ring
[sw_rx_index
];
1552 qede_rx_bd_ring_consume(rxq
);
1554 dma_unmap_page(&edev
->pdev
->dev
,
1555 sw_rx_data
->mapping
,
1556 PAGE_SIZE
, DMA_FROM_DEVICE
);
1558 skb_fill_page_desc(skb
,
1559 skb_shinfo(skb
)->nr_frags
++,
1560 sw_rx_data
->data
, 0,
1563 skb
->truesize
+= PAGE_SIZE
;
1564 skb
->data_len
+= cur_size
;
1565 skb
->len
+= cur_size
;
1566 pkt_len
-= cur_size
;
1569 if (unlikely(pkt_len
))
1571 "Mapped all BDs of jumbo, but still have %d bytes\n",
1575 skb
->protocol
= eth_type_trans(skb
, edev
->ndev
);
1577 rx_hash
= qede_get_rxhash(edev
, fp_cqe
->bitfields
,
1578 fp_cqe
->rss_hash
, &rxhash_type
);
1580 skb_set_hash(skb
, rx_hash
, rxhash_type
);
1582 qede_set_skb_csum(skb
, csum_flag
);
1584 skb_record_rx_queue(skb
, fp
->rxq
->rxq_id
);
1586 qede_skb_receive(edev
, fp
, skb
, le16_to_cpu(fp_cqe
->vlan_tag
));
1590 next_cqe
: /* don't consume bd rx buffer */
1591 qed_chain_recycle_consumed(&rxq
->rx_comp_ring
);
1592 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
1593 /* CR TPA - revisit how to handle budget in TPA perhaps
1596 if (rx_pkt
== budget
)
1598 } /* repeat while sw_comp_cons != hw_comp_cons... */
1600 /* Update producers */
1601 qede_update_rx_prod(edev
, rxq
);
1603 rxq
->rcv_pkts
+= rx_pkt
;
1608 static int qede_poll(struct napi_struct
*napi
, int budget
)
1610 struct qede_fastpath
*fp
= container_of(napi
, struct qede_fastpath
,
1612 struct qede_dev
*edev
= fp
->edev
;
1613 int rx_work_done
= 0;
1616 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
1617 if (likely(fp
->type
& QEDE_FASTPATH_TX
) &&
1618 qede_txq_has_work(&fp
->txqs
[tc
]))
1619 qede_tx_int(edev
, &fp
->txqs
[tc
]);
1621 rx_work_done
= (likely(fp
->type
& QEDE_FASTPATH_RX
) &&
1622 qede_has_rx_work(fp
->rxq
)) ?
1623 qede_rx_int(fp
, budget
) : 0;
1624 if (rx_work_done
< budget
) {
1625 qed_sb_update_sb_idx(fp
->sb_info
);
1626 /* *_has_*_work() reads the status block,
1627 * thus we need to ensure that status block indices
1628 * have been actually read (qed_sb_update_sb_idx)
1629 * prior to this check (*_has_*_work) so that
1630 * we won't write the "newer" value of the status block
1631 * to HW (if there was a DMA right after
1632 * qede_has_rx_work and if there is no rmb, the memory
1633 * reading (qed_sb_update_sb_idx) may be postponed
1634 * to right before *_ack_sb). In this case there
1635 * will never be another interrupt until there is
1636 * another update of the status block, while there
1637 * is still unhandled work.
1641 /* Fall out from the NAPI loop if needed */
1642 if (!((likely(fp
->type
& QEDE_FASTPATH_RX
) &&
1643 qede_has_rx_work(fp
->rxq
)) ||
1644 (likely(fp
->type
& QEDE_FASTPATH_TX
) &&
1645 qede_has_tx_work(fp
)))) {
1646 napi_complete(napi
);
1648 /* Update and reenable interrupts */
1649 qed_sb_ack(fp
->sb_info
, IGU_INT_ENABLE
,
1652 rx_work_done
= budget
;
1656 return rx_work_done
;
1659 static irqreturn_t
qede_msix_fp_int(int irq
, void *fp_cookie
)
1661 struct qede_fastpath
*fp
= fp_cookie
;
1663 qed_sb_ack(fp
->sb_info
, IGU_INT_DISABLE
, 0 /*do not update*/);
1665 napi_schedule_irqoff(&fp
->napi
);
1669 /* -------------------------------------------------------------------------
1671 * -------------------------------------------------------------------------
1674 static int qede_open(struct net_device
*ndev
);
1675 static int qede_close(struct net_device
*ndev
);
1676 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
);
1677 static void qede_set_rx_mode(struct net_device
*ndev
);
1678 static void qede_config_rx_mode(struct net_device
*ndev
);
1680 static int qede_set_ucast_rx_mac(struct qede_dev
*edev
,
1681 enum qed_filter_xcast_params_type opcode
,
1682 unsigned char mac
[ETH_ALEN
])
1684 struct qed_filter_params filter_cmd
;
1686 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1687 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1688 filter_cmd
.filter
.ucast
.type
= opcode
;
1689 filter_cmd
.filter
.ucast
.mac_valid
= 1;
1690 ether_addr_copy(filter_cmd
.filter
.ucast
.mac
, mac
);
1692 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1695 static int qede_set_ucast_rx_vlan(struct qede_dev
*edev
,
1696 enum qed_filter_xcast_params_type opcode
,
1699 struct qed_filter_params filter_cmd
;
1701 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1702 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1703 filter_cmd
.filter
.ucast
.type
= opcode
;
1704 filter_cmd
.filter
.ucast
.vlan_valid
= 1;
1705 filter_cmd
.filter
.ucast
.vlan
= vid
;
1707 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1710 void qede_fill_by_demand_stats(struct qede_dev
*edev
)
1712 struct qed_eth_stats stats
;
1714 edev
->ops
->get_vport_stats(edev
->cdev
, &stats
);
1715 edev
->stats
.no_buff_discards
= stats
.no_buff_discards
;
1716 edev
->stats
.packet_too_big_discard
= stats
.packet_too_big_discard
;
1717 edev
->stats
.ttl0_discard
= stats
.ttl0_discard
;
1718 edev
->stats
.rx_ucast_bytes
= stats
.rx_ucast_bytes
;
1719 edev
->stats
.rx_mcast_bytes
= stats
.rx_mcast_bytes
;
1720 edev
->stats
.rx_bcast_bytes
= stats
.rx_bcast_bytes
;
1721 edev
->stats
.rx_ucast_pkts
= stats
.rx_ucast_pkts
;
1722 edev
->stats
.rx_mcast_pkts
= stats
.rx_mcast_pkts
;
1723 edev
->stats
.rx_bcast_pkts
= stats
.rx_bcast_pkts
;
1724 edev
->stats
.mftag_filter_discards
= stats
.mftag_filter_discards
;
1725 edev
->stats
.mac_filter_discards
= stats
.mac_filter_discards
;
1727 edev
->stats
.tx_ucast_bytes
= stats
.tx_ucast_bytes
;
1728 edev
->stats
.tx_mcast_bytes
= stats
.tx_mcast_bytes
;
1729 edev
->stats
.tx_bcast_bytes
= stats
.tx_bcast_bytes
;
1730 edev
->stats
.tx_ucast_pkts
= stats
.tx_ucast_pkts
;
1731 edev
->stats
.tx_mcast_pkts
= stats
.tx_mcast_pkts
;
1732 edev
->stats
.tx_bcast_pkts
= stats
.tx_bcast_pkts
;
1733 edev
->stats
.tx_err_drop_pkts
= stats
.tx_err_drop_pkts
;
1734 edev
->stats
.coalesced_pkts
= stats
.tpa_coalesced_pkts
;
1735 edev
->stats
.coalesced_events
= stats
.tpa_coalesced_events
;
1736 edev
->stats
.coalesced_aborts_num
= stats
.tpa_aborts_num
;
1737 edev
->stats
.non_coalesced_pkts
= stats
.tpa_not_coalesced_pkts
;
1738 edev
->stats
.coalesced_bytes
= stats
.tpa_coalesced_bytes
;
1740 edev
->stats
.rx_64_byte_packets
= stats
.rx_64_byte_packets
;
1741 edev
->stats
.rx_65_to_127_byte_packets
= stats
.rx_65_to_127_byte_packets
;
1742 edev
->stats
.rx_128_to_255_byte_packets
=
1743 stats
.rx_128_to_255_byte_packets
;
1744 edev
->stats
.rx_256_to_511_byte_packets
=
1745 stats
.rx_256_to_511_byte_packets
;
1746 edev
->stats
.rx_512_to_1023_byte_packets
=
1747 stats
.rx_512_to_1023_byte_packets
;
1748 edev
->stats
.rx_1024_to_1518_byte_packets
=
1749 stats
.rx_1024_to_1518_byte_packets
;
1750 edev
->stats
.rx_1519_to_1522_byte_packets
=
1751 stats
.rx_1519_to_1522_byte_packets
;
1752 edev
->stats
.rx_1519_to_2047_byte_packets
=
1753 stats
.rx_1519_to_2047_byte_packets
;
1754 edev
->stats
.rx_2048_to_4095_byte_packets
=
1755 stats
.rx_2048_to_4095_byte_packets
;
1756 edev
->stats
.rx_4096_to_9216_byte_packets
=
1757 stats
.rx_4096_to_9216_byte_packets
;
1758 edev
->stats
.rx_9217_to_16383_byte_packets
=
1759 stats
.rx_9217_to_16383_byte_packets
;
1760 edev
->stats
.rx_crc_errors
= stats
.rx_crc_errors
;
1761 edev
->stats
.rx_mac_crtl_frames
= stats
.rx_mac_crtl_frames
;
1762 edev
->stats
.rx_pause_frames
= stats
.rx_pause_frames
;
1763 edev
->stats
.rx_pfc_frames
= stats
.rx_pfc_frames
;
1764 edev
->stats
.rx_align_errors
= stats
.rx_align_errors
;
1765 edev
->stats
.rx_carrier_errors
= stats
.rx_carrier_errors
;
1766 edev
->stats
.rx_oversize_packets
= stats
.rx_oversize_packets
;
1767 edev
->stats
.rx_jabbers
= stats
.rx_jabbers
;
1768 edev
->stats
.rx_undersize_packets
= stats
.rx_undersize_packets
;
1769 edev
->stats
.rx_fragments
= stats
.rx_fragments
;
1770 edev
->stats
.tx_64_byte_packets
= stats
.tx_64_byte_packets
;
1771 edev
->stats
.tx_65_to_127_byte_packets
= stats
.tx_65_to_127_byte_packets
;
1772 edev
->stats
.tx_128_to_255_byte_packets
=
1773 stats
.tx_128_to_255_byte_packets
;
1774 edev
->stats
.tx_256_to_511_byte_packets
=
1775 stats
.tx_256_to_511_byte_packets
;
1776 edev
->stats
.tx_512_to_1023_byte_packets
=
1777 stats
.tx_512_to_1023_byte_packets
;
1778 edev
->stats
.tx_1024_to_1518_byte_packets
=
1779 stats
.tx_1024_to_1518_byte_packets
;
1780 edev
->stats
.tx_1519_to_2047_byte_packets
=
1781 stats
.tx_1519_to_2047_byte_packets
;
1782 edev
->stats
.tx_2048_to_4095_byte_packets
=
1783 stats
.tx_2048_to_4095_byte_packets
;
1784 edev
->stats
.tx_4096_to_9216_byte_packets
=
1785 stats
.tx_4096_to_9216_byte_packets
;
1786 edev
->stats
.tx_9217_to_16383_byte_packets
=
1787 stats
.tx_9217_to_16383_byte_packets
;
1788 edev
->stats
.tx_pause_frames
= stats
.tx_pause_frames
;
1789 edev
->stats
.tx_pfc_frames
= stats
.tx_pfc_frames
;
1790 edev
->stats
.tx_lpi_entry_count
= stats
.tx_lpi_entry_count
;
1791 edev
->stats
.tx_total_collisions
= stats
.tx_total_collisions
;
1792 edev
->stats
.brb_truncates
= stats
.brb_truncates
;
1793 edev
->stats
.brb_discards
= stats
.brb_discards
;
1794 edev
->stats
.tx_mac_ctrl_frames
= stats
.tx_mac_ctrl_frames
;
1798 struct rtnl_link_stats64
*qede_get_stats64(struct net_device
*dev
,
1799 struct rtnl_link_stats64
*stats
)
1801 struct qede_dev
*edev
= netdev_priv(dev
);
1803 qede_fill_by_demand_stats(edev
);
1805 stats
->rx_packets
= edev
->stats
.rx_ucast_pkts
+
1806 edev
->stats
.rx_mcast_pkts
+
1807 edev
->stats
.rx_bcast_pkts
;
1808 stats
->tx_packets
= edev
->stats
.tx_ucast_pkts
+
1809 edev
->stats
.tx_mcast_pkts
+
1810 edev
->stats
.tx_bcast_pkts
;
1812 stats
->rx_bytes
= edev
->stats
.rx_ucast_bytes
+
1813 edev
->stats
.rx_mcast_bytes
+
1814 edev
->stats
.rx_bcast_bytes
;
1816 stats
->tx_bytes
= edev
->stats
.tx_ucast_bytes
+
1817 edev
->stats
.tx_mcast_bytes
+
1818 edev
->stats
.tx_bcast_bytes
;
1820 stats
->tx_errors
= edev
->stats
.tx_err_drop_pkts
;
1821 stats
->multicast
= edev
->stats
.rx_mcast_pkts
+
1822 edev
->stats
.rx_bcast_pkts
;
1824 stats
->rx_fifo_errors
= edev
->stats
.no_buff_discards
;
1826 stats
->collisions
= edev
->stats
.tx_total_collisions
;
1827 stats
->rx_crc_errors
= edev
->stats
.rx_crc_errors
;
1828 stats
->rx_frame_errors
= edev
->stats
.rx_align_errors
;
1833 #ifdef CONFIG_QED_SRIOV
1834 static int qede_get_vf_config(struct net_device
*dev
, int vfidx
,
1835 struct ifla_vf_info
*ivi
)
1837 struct qede_dev
*edev
= netdev_priv(dev
);
1842 return edev
->ops
->iov
->get_config(edev
->cdev
, vfidx
, ivi
);
1845 static int qede_set_vf_rate(struct net_device
*dev
, int vfidx
,
1846 int min_tx_rate
, int max_tx_rate
)
1848 struct qede_dev
*edev
= netdev_priv(dev
);
1850 return edev
->ops
->iov
->set_rate(edev
->cdev
, vfidx
, min_tx_rate
,
1854 static int qede_set_vf_spoofchk(struct net_device
*dev
, int vfidx
, bool val
)
1856 struct qede_dev
*edev
= netdev_priv(dev
);
1861 return edev
->ops
->iov
->set_spoof(edev
->cdev
, vfidx
, val
);
1864 static int qede_set_vf_link_state(struct net_device
*dev
, int vfidx
,
1867 struct qede_dev
*edev
= netdev_priv(dev
);
1872 return edev
->ops
->iov
->set_link_state(edev
->cdev
, vfidx
, link_state
);
1876 static void qede_config_accept_any_vlan(struct qede_dev
*edev
, bool action
)
1878 struct qed_update_vport_params params
;
1881 /* Proceed only if action actually needs to be performed */
1882 if (edev
->accept_any_vlan
== action
)
1885 memset(¶ms
, 0, sizeof(params
));
1887 params
.vport_id
= 0;
1888 params
.accept_any_vlan
= action
;
1889 params
.update_accept_any_vlan_flg
= 1;
1891 rc
= edev
->ops
->vport_update(edev
->cdev
, ¶ms
);
1893 DP_ERR(edev
, "Failed to %s accept-any-vlan\n",
1894 action
? "enable" : "disable");
1896 DP_INFO(edev
, "%s accept-any-vlan\n",
1897 action
? "enabled" : "disabled");
1898 edev
->accept_any_vlan
= action
;
1902 static int qede_vlan_rx_add_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1904 struct qede_dev
*edev
= netdev_priv(dev
);
1905 struct qede_vlan
*vlan
, *tmp
;
1908 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan 0x%04x\n", vid
);
1910 vlan
= kzalloc(sizeof(*vlan
), GFP_KERNEL
);
1912 DP_INFO(edev
, "Failed to allocate struct for vlan\n");
1915 INIT_LIST_HEAD(&vlan
->list
);
1917 vlan
->configured
= false;
1919 /* Verify vlan isn't already configured */
1920 list_for_each_entry(tmp
, &edev
->vlan_list
, list
) {
1921 if (tmp
->vid
== vlan
->vid
) {
1922 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
1923 "vlan already configured\n");
1929 /* If interface is down, cache this VLAN ID and return */
1930 if (edev
->state
!= QEDE_STATE_OPEN
) {
1931 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
1932 "Interface is down, VLAN %d will be configured when interface is up\n",
1935 edev
->non_configured_vlans
++;
1936 list_add(&vlan
->list
, &edev
->vlan_list
);
1941 /* Check for the filter limit.
1942 * Note - vlan0 has a reserved filter and can be added without
1943 * worrying about quota
1945 if ((edev
->configured_vlans
< edev
->dev_info
.num_vlan_filters
) ||
1947 rc
= qede_set_ucast_rx_vlan(edev
,
1948 QED_FILTER_XCAST_TYPE_ADD
,
1951 DP_ERR(edev
, "Failed to configure VLAN %d\n",
1956 vlan
->configured
= true;
1958 /* vlan0 filter isn't consuming out of our quota */
1960 edev
->configured_vlans
++;
1962 /* Out of quota; Activate accept-any-VLAN mode */
1963 if (!edev
->non_configured_vlans
)
1964 qede_config_accept_any_vlan(edev
, true);
1966 edev
->non_configured_vlans
++;
1969 list_add(&vlan
->list
, &edev
->vlan_list
);
1974 static void qede_del_vlan_from_list(struct qede_dev
*edev
,
1975 struct qede_vlan
*vlan
)
1977 /* vlan0 filter isn't consuming out of our quota */
1978 if (vlan
->vid
!= 0) {
1979 if (vlan
->configured
)
1980 edev
->configured_vlans
--;
1982 edev
->non_configured_vlans
--;
1985 list_del(&vlan
->list
);
1989 static int qede_configure_vlan_filters(struct qede_dev
*edev
)
1991 int rc
= 0, real_rc
= 0, accept_any_vlan
= 0;
1992 struct qed_dev_eth_info
*dev_info
;
1993 struct qede_vlan
*vlan
= NULL
;
1995 if (list_empty(&edev
->vlan_list
))
1998 dev_info
= &edev
->dev_info
;
2000 /* Configure non-configured vlans */
2001 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
2002 if (vlan
->configured
)
2005 /* We have used all our credits, now enable accept_any_vlan */
2006 if ((vlan
->vid
!= 0) &&
2007 (edev
->configured_vlans
== dev_info
->num_vlan_filters
)) {
2008 accept_any_vlan
= 1;
2012 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan %d\n", vlan
->vid
);
2014 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_ADD
,
2017 DP_ERR(edev
, "Failed to configure VLAN %u\n",
2023 vlan
->configured
= true;
2024 /* vlan0 filter doesn't consume our VLAN filter's quota */
2025 if (vlan
->vid
!= 0) {
2026 edev
->non_configured_vlans
--;
2027 edev
->configured_vlans
++;
2031 /* enable accept_any_vlan mode if we have more VLANs than credits,
2032 * or remove accept_any_vlan mode if we've actually removed
2033 * a non-configured vlan, and all remaining vlans are truly configured.
2036 if (accept_any_vlan
)
2037 qede_config_accept_any_vlan(edev
, true);
2038 else if (!edev
->non_configured_vlans
)
2039 qede_config_accept_any_vlan(edev
, false);
2044 static int qede_vlan_rx_kill_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
2046 struct qede_dev
*edev
= netdev_priv(dev
);
2047 struct qede_vlan
*vlan
= NULL
;
2050 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
, "Removing vlan 0x%04x\n", vid
);
2052 /* Find whether entry exists */
2053 list_for_each_entry(vlan
, &edev
->vlan_list
, list
)
2054 if (vlan
->vid
== vid
)
2057 if (!vlan
|| (vlan
->vid
!= vid
)) {
2058 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
2059 "Vlan isn't configured\n");
2063 if (edev
->state
!= QEDE_STATE_OPEN
) {
2064 /* As interface is already down, we don't have a VPORT
2065 * instance to remove vlan filter. So just update vlan list
2067 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
2068 "Interface is down, removing VLAN from list only\n");
2069 qede_del_vlan_from_list(edev
, vlan
);
2074 if (vlan
->configured
) {
2075 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_DEL
,
2078 DP_ERR(edev
, "Failed to remove VLAN %d\n", vid
);
2083 qede_del_vlan_from_list(edev
, vlan
);
2085 /* We have removed a VLAN - try to see if we can
2086 * configure non-configured VLAN from the list.
2088 rc
= qede_configure_vlan_filters(edev
);
2093 static void qede_vlan_mark_nonconfigured(struct qede_dev
*edev
)
2095 struct qede_vlan
*vlan
= NULL
;
2097 if (list_empty(&edev
->vlan_list
))
2100 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
2101 if (!vlan
->configured
)
2104 vlan
->configured
= false;
2106 /* vlan0 filter isn't consuming out of our quota */
2107 if (vlan
->vid
!= 0) {
2108 edev
->non_configured_vlans
++;
2109 edev
->configured_vlans
--;
2112 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
2113 "marked vlan %d as non-configured\n", vlan
->vid
);
2116 edev
->accept_any_vlan
= false;
2119 static int qede_set_features(struct net_device
*dev
, netdev_features_t features
)
2121 struct qede_dev
*edev
= netdev_priv(dev
);
2122 netdev_features_t changes
= features
^ dev
->features
;
2123 bool need_reload
= false;
2125 /* No action needed if hardware GRO is disabled during driver load */
2126 if (changes
& NETIF_F_GRO
) {
2127 if (dev
->features
& NETIF_F_GRO
)
2128 need_reload
= !edev
->gro_disable
;
2130 need_reload
= edev
->gro_disable
;
2133 if (need_reload
&& netif_running(edev
->ndev
)) {
2134 dev
->features
= features
;
2135 qede_reload(edev
, NULL
, NULL
);
2142 static void qede_udp_tunnel_add(struct net_device
*dev
,
2143 struct udp_tunnel_info
*ti
)
2145 struct qede_dev
*edev
= netdev_priv(dev
);
2146 u16 t_port
= ntohs(ti
->port
);
2149 case UDP_TUNNEL_TYPE_VXLAN
:
2150 if (edev
->vxlan_dst_port
)
2153 edev
->vxlan_dst_port
= t_port
;
2155 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added vxlan port=%d\n",
2158 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
2160 case UDP_TUNNEL_TYPE_GENEVE
:
2161 if (edev
->geneve_dst_port
)
2164 edev
->geneve_dst_port
= t_port
;
2166 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added geneve port=%d\n",
2168 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
2174 schedule_delayed_work(&edev
->sp_task
, 0);
2177 static void qede_udp_tunnel_del(struct net_device
*dev
,
2178 struct udp_tunnel_info
*ti
)
2180 struct qede_dev
*edev
= netdev_priv(dev
);
2181 u16 t_port
= ntohs(ti
->port
);
2184 case UDP_TUNNEL_TYPE_VXLAN
:
2185 if (t_port
!= edev
->vxlan_dst_port
)
2188 edev
->vxlan_dst_port
= 0;
2190 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted vxlan port=%d\n",
2193 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
2195 case UDP_TUNNEL_TYPE_GENEVE
:
2196 if (t_port
!= edev
->geneve_dst_port
)
2199 edev
->geneve_dst_port
= 0;
2201 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted geneve port=%d\n",
2203 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
2209 schedule_delayed_work(&edev
->sp_task
, 0);
2212 static const struct net_device_ops qede_netdev_ops
= {
2213 .ndo_open
= qede_open
,
2214 .ndo_stop
= qede_close
,
2215 .ndo_start_xmit
= qede_start_xmit
,
2216 .ndo_set_rx_mode
= qede_set_rx_mode
,
2217 .ndo_set_mac_address
= qede_set_mac_addr
,
2218 .ndo_validate_addr
= eth_validate_addr
,
2219 .ndo_change_mtu
= qede_change_mtu
,
2220 #ifdef CONFIG_QED_SRIOV
2221 .ndo_set_vf_mac
= qede_set_vf_mac
,
2222 .ndo_set_vf_vlan
= qede_set_vf_vlan
,
2224 .ndo_vlan_rx_add_vid
= qede_vlan_rx_add_vid
,
2225 .ndo_vlan_rx_kill_vid
= qede_vlan_rx_kill_vid
,
2226 .ndo_set_features
= qede_set_features
,
2227 .ndo_get_stats64
= qede_get_stats64
,
2228 #ifdef CONFIG_QED_SRIOV
2229 .ndo_set_vf_link_state
= qede_set_vf_link_state
,
2230 .ndo_set_vf_spoofchk
= qede_set_vf_spoofchk
,
2231 .ndo_get_vf_config
= qede_get_vf_config
,
2232 .ndo_set_vf_rate
= qede_set_vf_rate
,
2234 .ndo_udp_tunnel_add
= qede_udp_tunnel_add
,
2235 .ndo_udp_tunnel_del
= qede_udp_tunnel_del
,
2238 /* -------------------------------------------------------------------------
2239 * START OF PROBE / REMOVE
2240 * -------------------------------------------------------------------------
2243 static struct qede_dev
*qede_alloc_etherdev(struct qed_dev
*cdev
,
2244 struct pci_dev
*pdev
,
2245 struct qed_dev_eth_info
*info
,
2246 u32 dp_module
, u8 dp_level
)
2248 struct net_device
*ndev
;
2249 struct qede_dev
*edev
;
2251 ndev
= alloc_etherdev_mqs(sizeof(*edev
),
2252 info
->num_queues
, info
->num_queues
);
2254 pr_err("etherdev allocation failed\n");
2258 edev
= netdev_priv(ndev
);
2262 edev
->dp_module
= dp_module
;
2263 edev
->dp_level
= dp_level
;
2264 edev
->ops
= qed_ops
;
2265 edev
->q_num_rx_buffers
= NUM_RX_BDS_DEF
;
2266 edev
->q_num_tx_buffers
= NUM_TX_BDS_DEF
;
2268 DP_INFO(edev
, "Allocated netdev with %d tx queues and %d rx queues\n",
2269 info
->num_queues
, info
->num_queues
);
2271 SET_NETDEV_DEV(ndev
, &pdev
->dev
);
2273 memset(&edev
->stats
, 0, sizeof(edev
->stats
));
2274 memcpy(&edev
->dev_info
, info
, sizeof(*info
));
2276 edev
->num_tc
= edev
->dev_info
.num_tc
;
2278 INIT_LIST_HEAD(&edev
->vlan_list
);
2283 static void qede_init_ndev(struct qede_dev
*edev
)
2285 struct net_device
*ndev
= edev
->ndev
;
2286 struct pci_dev
*pdev
= edev
->pdev
;
2289 pci_set_drvdata(pdev
, ndev
);
2291 ndev
->mem_start
= edev
->dev_info
.common
.pci_mem_start
;
2292 ndev
->base_addr
= ndev
->mem_start
;
2293 ndev
->mem_end
= edev
->dev_info
.common
.pci_mem_end
;
2294 ndev
->irq
= edev
->dev_info
.common
.pci_irq
;
2296 ndev
->watchdog_timeo
= TX_TIMEOUT
;
2298 ndev
->netdev_ops
= &qede_netdev_ops
;
2300 qede_set_ethtool_ops(ndev
);
2302 /* user-changeble features */
2303 hw_features
= NETIF_F_GRO
| NETIF_F_SG
|
2304 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2305 NETIF_F_TSO
| NETIF_F_TSO6
;
2308 hw_features
|= NETIF_F_GSO_GRE
| NETIF_F_GSO_UDP_TUNNEL
|
2310 ndev
->hw_enc_features
= NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2311 NETIF_F_SG
| NETIF_F_TSO
| NETIF_F_TSO_ECN
|
2312 NETIF_F_TSO6
| NETIF_F_GSO_GRE
|
2313 NETIF_F_GSO_UDP_TUNNEL
| NETIF_F_RXCSUM
;
2315 ndev
->vlan_features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
2317 ndev
->features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
2318 NETIF_F_HW_VLAN_CTAG_RX
| NETIF_F_HIGHDMA
|
2319 NETIF_F_HW_VLAN_CTAG_FILTER
| NETIF_F_HW_VLAN_CTAG_TX
;
2321 ndev
->hw_features
= hw_features
;
2323 /* Set network device HW mac */
2324 ether_addr_copy(edev
->ndev
->dev_addr
, edev
->dev_info
.common
.hw_mac
);
2327 /* This function converts from 32b param to two params of level and module
2328 * Input 32b decoding:
2329 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
2330 * 'happy' flow, e.g. memory allocation failed.
2331 * b30 - enable all INFO prints. INFO prints are for major steps in the flow
2332 * and provide important parameters.
2333 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
2334 * module. VERBOSE prints are for tracking the specific flow in low level.
2336 * Notice that the level should be that of the lowest required logs.
2338 void qede_config_debug(uint debug
, u32
*p_dp_module
, u8
*p_dp_level
)
2340 *p_dp_level
= QED_LEVEL_NOTICE
;
2343 if (debug
& QED_LOG_VERBOSE_MASK
) {
2344 *p_dp_level
= QED_LEVEL_VERBOSE
;
2345 *p_dp_module
= (debug
& 0x3FFFFFFF);
2346 } else if (debug
& QED_LOG_INFO_MASK
) {
2347 *p_dp_level
= QED_LEVEL_INFO
;
2348 } else if (debug
& QED_LOG_NOTICE_MASK
) {
2349 *p_dp_level
= QED_LEVEL_NOTICE
;
2353 static void qede_free_fp_array(struct qede_dev
*edev
)
2355 if (edev
->fp_array
) {
2356 struct qede_fastpath
*fp
;
2360 fp
= &edev
->fp_array
[i
];
2366 kfree(edev
->fp_array
);
2369 edev
->num_queues
= 0;
2370 edev
->fp_num_tx
= 0;
2371 edev
->fp_num_rx
= 0;
2374 static int qede_alloc_fp_array(struct qede_dev
*edev
)
2376 u8 fp_combined
, fp_rx
= edev
->fp_num_rx
;
2377 struct qede_fastpath
*fp
;
2380 edev
->fp_array
= kcalloc(QEDE_QUEUE_CNT(edev
),
2381 sizeof(*edev
->fp_array
), GFP_KERNEL
);
2382 if (!edev
->fp_array
) {
2383 DP_NOTICE(edev
, "fp array allocation failed\n");
2387 fp_combined
= QEDE_QUEUE_CNT(edev
) - fp_rx
- edev
->fp_num_tx
;
2389 /* Allocate the FP elements for Rx queues followed by combined and then
2390 * the Tx. This ordering should be maintained so that the respective
2391 * queues (Rx or Tx) will be together in the fastpath array and the
2392 * associated ids will be sequential.
2395 fp
= &edev
->fp_array
[i
];
2397 fp
->sb_info
= kcalloc(1, sizeof(*fp
->sb_info
), GFP_KERNEL
);
2399 DP_NOTICE(edev
, "sb info struct allocation failed\n");
2404 fp
->type
= QEDE_FASTPATH_RX
;
2406 } else if (fp_combined
) {
2407 fp
->type
= QEDE_FASTPATH_COMBINED
;
2410 fp
->type
= QEDE_FASTPATH_TX
;
2413 if (fp
->type
& QEDE_FASTPATH_TX
) {
2414 fp
->txqs
= kcalloc(edev
->num_tc
, sizeof(*fp
->txqs
),
2418 "TXQ array allocation failed\n");
2423 if (fp
->type
& QEDE_FASTPATH_RX
) {
2424 fp
->rxq
= kcalloc(1, sizeof(*fp
->rxq
), GFP_KERNEL
);
2427 "RXQ struct allocation failed\n");
2435 qede_free_fp_array(edev
);
2439 static void qede_sp_task(struct work_struct
*work
)
2441 struct qede_dev
*edev
= container_of(work
, struct qede_dev
,
2443 struct qed_dev
*cdev
= edev
->cdev
;
2445 mutex_lock(&edev
->qede_lock
);
2447 if (edev
->state
== QEDE_STATE_OPEN
) {
2448 if (test_and_clear_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
))
2449 qede_config_rx_mode(edev
->ndev
);
2452 if (test_and_clear_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
)) {
2453 struct qed_tunn_params tunn_params
;
2455 memset(&tunn_params
, 0, sizeof(tunn_params
));
2456 tunn_params
.update_vxlan_port
= 1;
2457 tunn_params
.vxlan_port
= edev
->vxlan_dst_port
;
2458 qed_ops
->tunn_config(cdev
, &tunn_params
);
2461 if (test_and_clear_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
)) {
2462 struct qed_tunn_params tunn_params
;
2464 memset(&tunn_params
, 0, sizeof(tunn_params
));
2465 tunn_params
.update_geneve_port
= 1;
2466 tunn_params
.geneve_port
= edev
->geneve_dst_port
;
2467 qed_ops
->tunn_config(cdev
, &tunn_params
);
2470 mutex_unlock(&edev
->qede_lock
);
2473 static void qede_update_pf_params(struct qed_dev
*cdev
)
2475 struct qed_pf_params pf_params
;
2478 memset(&pf_params
, 0, sizeof(struct qed_pf_params
));
2479 pf_params
.eth_pf_params
.num_cons
= 128;
2480 qed_ops
->common
->update_pf_params(cdev
, &pf_params
);
2483 enum qede_probe_mode
{
2487 static int __qede_probe(struct pci_dev
*pdev
, u32 dp_module
, u8 dp_level
,
2488 bool is_vf
, enum qede_probe_mode mode
)
2490 struct qed_probe_params probe_params
;
2491 struct qed_slowpath_params sp_params
;
2492 struct qed_dev_eth_info dev_info
;
2493 struct qede_dev
*edev
;
2494 struct qed_dev
*cdev
;
2497 if (unlikely(dp_level
& QED_LEVEL_INFO
))
2498 pr_notice("Starting qede probe\n");
2500 memset(&probe_params
, 0, sizeof(probe_params
));
2501 probe_params
.protocol
= QED_PROTOCOL_ETH
;
2502 probe_params
.dp_module
= dp_module
;
2503 probe_params
.dp_level
= dp_level
;
2504 probe_params
.is_vf
= is_vf
;
2505 cdev
= qed_ops
->common
->probe(pdev
, &probe_params
);
2511 qede_update_pf_params(cdev
);
2513 /* Start the Slowpath-process */
2514 memset(&sp_params
, 0, sizeof(sp_params
));
2515 sp_params
.int_mode
= QED_INT_MODE_MSIX
;
2516 sp_params
.drv_major
= QEDE_MAJOR_VERSION
;
2517 sp_params
.drv_minor
= QEDE_MINOR_VERSION
;
2518 sp_params
.drv_rev
= QEDE_REVISION_VERSION
;
2519 sp_params
.drv_eng
= QEDE_ENGINEERING_VERSION
;
2520 strlcpy(sp_params
.name
, "qede LAN", QED_DRV_VER_STR_SIZE
);
2521 rc
= qed_ops
->common
->slowpath_start(cdev
, &sp_params
);
2523 pr_notice("Cannot start slowpath\n");
2527 /* Learn information crucial for qede to progress */
2528 rc
= qed_ops
->fill_dev_info(cdev
, &dev_info
);
2532 edev
= qede_alloc_etherdev(cdev
, pdev
, &dev_info
, dp_module
,
2540 edev
->flags
|= QEDE_FLAG_IS_VF
;
2542 qede_init_ndev(edev
);
2544 rc
= register_netdev(edev
->ndev
);
2546 DP_NOTICE(edev
, "Cannot register net-device\n");
2550 edev
->ops
->common
->set_id(cdev
, edev
->ndev
->name
, DRV_MODULE_VERSION
);
2552 edev
->ops
->register_ops(cdev
, &qede_ll_ops
, edev
);
2556 qede_set_dcbnl_ops(edev
->ndev
);
2559 INIT_DELAYED_WORK(&edev
->sp_task
, qede_sp_task
);
2560 mutex_init(&edev
->qede_lock
);
2561 edev
->rx_copybreak
= QEDE_RX_HDR_SIZE
;
2563 DP_INFO(edev
, "Ending successfully qede probe\n");
2568 free_netdev(edev
->ndev
);
2570 qed_ops
->common
->slowpath_stop(cdev
);
2572 qed_ops
->common
->remove(cdev
);
2577 static int qede_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
2583 switch ((enum qede_pci_private
)id
->driver_data
) {
2584 case QEDE_PRIVATE_VF
:
2585 if (debug
& QED_LOG_VERBOSE_MASK
)
2586 dev_err(&pdev
->dev
, "Probing a VF\n");
2590 if (debug
& QED_LOG_VERBOSE_MASK
)
2591 dev_err(&pdev
->dev
, "Probing a PF\n");
2594 qede_config_debug(debug
, &dp_module
, &dp_level
);
2596 return __qede_probe(pdev
, dp_module
, dp_level
, is_vf
,
2600 enum qede_remove_mode
{
2604 static void __qede_remove(struct pci_dev
*pdev
, enum qede_remove_mode mode
)
2606 struct net_device
*ndev
= pci_get_drvdata(pdev
);
2607 struct qede_dev
*edev
= netdev_priv(ndev
);
2608 struct qed_dev
*cdev
= edev
->cdev
;
2610 DP_INFO(edev
, "Starting qede_remove\n");
2612 cancel_delayed_work_sync(&edev
->sp_task
);
2613 unregister_netdev(ndev
);
2615 edev
->ops
->common
->set_power_state(cdev
, PCI_D0
);
2617 pci_set_drvdata(pdev
, NULL
);
2621 /* Use global ops since we've freed edev */
2622 qed_ops
->common
->slowpath_stop(cdev
);
2623 qed_ops
->common
->remove(cdev
);
2625 dev_info(&pdev
->dev
, "Ending qede_remove successfully\n");
2628 static void qede_remove(struct pci_dev
*pdev
)
2630 __qede_remove(pdev
, QEDE_REMOVE_NORMAL
);
2633 /* -------------------------------------------------------------------------
2634 * START OF LOAD / UNLOAD
2635 * -------------------------------------------------------------------------
2638 static int qede_set_num_queues(struct qede_dev
*edev
)
2643 /* Setup queues according to possible resources*/
2644 if (edev
->req_queues
)
2645 rss_num
= edev
->req_queues
;
2647 rss_num
= netif_get_num_default_rss_queues() *
2648 edev
->dev_info
.common
.num_hwfns
;
2650 rss_num
= min_t(u16
, QEDE_MAX_RSS_CNT(edev
), rss_num
);
2652 rc
= edev
->ops
->common
->set_fp_int(edev
->cdev
, rss_num
);
2654 /* Managed to request interrupts for our queues */
2655 edev
->num_queues
= rc
;
2656 DP_INFO(edev
, "Managed %d [of %d] RSS queues\n",
2657 QEDE_QUEUE_CNT(edev
), rss_num
);
2661 edev
->fp_num_tx
= edev
->req_num_tx
;
2662 edev
->fp_num_rx
= edev
->req_num_rx
;
2667 static void qede_free_mem_sb(struct qede_dev
*edev
,
2668 struct qed_sb_info
*sb_info
)
2670 if (sb_info
->sb_virt
)
2671 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_info
->sb_virt
),
2672 (void *)sb_info
->sb_virt
, sb_info
->sb_phys
);
2675 /* This function allocates fast-path status block memory */
2676 static int qede_alloc_mem_sb(struct qede_dev
*edev
,
2677 struct qed_sb_info
*sb_info
, u16 sb_id
)
2679 struct status_block
*sb_virt
;
2683 sb_virt
= dma_alloc_coherent(&edev
->pdev
->dev
,
2684 sizeof(*sb_virt
), &sb_phys
, GFP_KERNEL
);
2686 DP_ERR(edev
, "Status block allocation failed\n");
2690 rc
= edev
->ops
->common
->sb_init(edev
->cdev
, sb_info
,
2691 sb_virt
, sb_phys
, sb_id
,
2692 QED_SB_TYPE_L2_QUEUE
);
2694 DP_ERR(edev
, "Status block initialization failed\n");
2695 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_virt
),
2703 static void qede_free_rx_buffers(struct qede_dev
*edev
,
2704 struct qede_rx_queue
*rxq
)
2708 for (i
= rxq
->sw_rx_cons
; i
!= rxq
->sw_rx_prod
; i
++) {
2709 struct sw_rx_data
*rx_buf
;
2712 rx_buf
= &rxq
->sw_rx_ring
[i
& NUM_RX_BDS_MAX
];
2713 data
= rx_buf
->data
;
2715 dma_unmap_page(&edev
->pdev
->dev
,
2716 rx_buf
->mapping
, PAGE_SIZE
, DMA_FROM_DEVICE
);
2718 rx_buf
->data
= NULL
;
2723 static void qede_free_sge_mem(struct qede_dev
*edev
, struct qede_rx_queue
*rxq
)
2727 if (edev
->gro_disable
)
2730 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2731 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2732 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2734 if (replace_buf
->data
) {
2735 dma_unmap_page(&edev
->pdev
->dev
,
2736 replace_buf
->mapping
,
2737 PAGE_SIZE
, DMA_FROM_DEVICE
);
2738 __free_page(replace_buf
->data
);
2743 static void qede_free_mem_rxq(struct qede_dev
*edev
, struct qede_rx_queue
*rxq
)
2745 qede_free_sge_mem(edev
, rxq
);
2747 /* Free rx buffers */
2748 qede_free_rx_buffers(edev
, rxq
);
2750 /* Free the parallel SW ring */
2751 kfree(rxq
->sw_rx_ring
);
2753 /* Free the real RQ ring used by FW */
2754 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_bd_ring
);
2755 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_comp_ring
);
2758 static int qede_alloc_rx_buffer(struct qede_dev
*edev
,
2759 struct qede_rx_queue
*rxq
)
2761 struct sw_rx_data
*sw_rx_data
;
2762 struct eth_rx_bd
*rx_bd
;
2766 data
= alloc_pages(GFP_ATOMIC
, 0);
2767 if (unlikely(!data
)) {
2768 DP_NOTICE(edev
, "Failed to allocate Rx data [page]\n");
2772 /* Map the entire page as it would be used
2773 * for multiple RX buffer segment size mapping.
2775 mapping
= dma_map_page(&edev
->pdev
->dev
, data
, 0,
2776 PAGE_SIZE
, DMA_FROM_DEVICE
);
2777 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2779 DP_NOTICE(edev
, "Failed to map Rx buffer\n");
2783 sw_rx_data
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
2784 sw_rx_data
->page_offset
= 0;
2785 sw_rx_data
->data
= data
;
2786 sw_rx_data
->mapping
= mapping
;
2788 /* Advance PROD and get BD pointer */
2789 rx_bd
= (struct eth_rx_bd
*)qed_chain_produce(&rxq
->rx_bd_ring
);
2791 rx_bd
->addr
.hi
= cpu_to_le32(upper_32_bits(mapping
));
2792 rx_bd
->addr
.lo
= cpu_to_le32(lower_32_bits(mapping
));
2799 static int qede_alloc_sge_mem(struct qede_dev
*edev
, struct qede_rx_queue
*rxq
)
2804 if (edev
->gro_disable
)
2807 if (edev
->ndev
->mtu
> PAGE_SIZE
) {
2808 edev
->gro_disable
= 1;
2812 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2813 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2814 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2816 replace_buf
->data
= alloc_pages(GFP_ATOMIC
, 0);
2817 if (unlikely(!replace_buf
->data
)) {
2819 "Failed to allocate TPA skb pool [replacement buffer]\n");
2823 mapping
= dma_map_page(&edev
->pdev
->dev
, replace_buf
->data
, 0,
2824 rxq
->rx_buf_size
, DMA_FROM_DEVICE
);
2825 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2827 "Failed to map TPA replacement buffer\n");
2831 replace_buf
->mapping
= mapping
;
2832 tpa_info
->replace_buf
.page_offset
= 0;
2834 tpa_info
->replace_buf_mapping
= mapping
;
2835 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
2840 qede_free_sge_mem(edev
, rxq
);
2841 edev
->gro_disable
= 1;
2845 /* This function allocates all memory needed per Rx queue */
2846 static int qede_alloc_mem_rxq(struct qede_dev
*edev
, struct qede_rx_queue
*rxq
)
2850 rxq
->num_rx_buffers
= edev
->q_num_rx_buffers
;
2852 rxq
->rx_buf_size
= NET_IP_ALIGN
+ ETH_OVERHEAD
+ edev
->ndev
->mtu
;
2854 if (rxq
->rx_buf_size
> PAGE_SIZE
)
2855 rxq
->rx_buf_size
= PAGE_SIZE
;
2857 /* Segment size to spilt a page in multiple equal parts */
2858 rxq
->rx_buf_seg_size
= roundup_pow_of_two(rxq
->rx_buf_size
);
2860 /* Allocate the parallel driver ring for Rx buffers */
2861 size
= sizeof(*rxq
->sw_rx_ring
) * RX_RING_SIZE
;
2862 rxq
->sw_rx_ring
= kzalloc(size
, GFP_KERNEL
);
2863 if (!rxq
->sw_rx_ring
) {
2864 DP_ERR(edev
, "Rx buffers ring allocation failed\n");
2869 /* Allocate FW Rx ring */
2870 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2871 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2872 QED_CHAIN_MODE_NEXT_PTR
,
2873 QED_CHAIN_CNT_TYPE_U16
,
2875 sizeof(struct eth_rx_bd
),
2881 /* Allocate FW completion ring */
2882 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2883 QED_CHAIN_USE_TO_CONSUME
,
2885 QED_CHAIN_CNT_TYPE_U16
,
2887 sizeof(union eth_rx_cqe
),
2888 &rxq
->rx_comp_ring
);
2892 /* Allocate buffers for the Rx ring */
2893 for (i
= 0; i
< rxq
->num_rx_buffers
; i
++) {
2894 rc
= qede_alloc_rx_buffer(edev
, rxq
);
2897 "Rx buffers allocation failed at index %d\n", i
);
2902 rc
= qede_alloc_sge_mem(edev
, rxq
);
2907 static void qede_free_mem_txq(struct qede_dev
*edev
, struct qede_tx_queue
*txq
)
2909 /* Free the parallel SW ring */
2910 kfree(txq
->sw_tx_ring
);
2912 /* Free the real RQ ring used by FW */
2913 edev
->ops
->common
->chain_free(edev
->cdev
, &txq
->tx_pbl
);
2916 /* This function allocates all memory needed per Tx queue */
2917 static int qede_alloc_mem_txq(struct qede_dev
*edev
, struct qede_tx_queue
*txq
)
2920 union eth_tx_bd_types
*p_virt
;
2922 txq
->num_tx_buffers
= edev
->q_num_tx_buffers
;
2924 /* Allocate the parallel driver ring for Tx buffers */
2925 size
= sizeof(*txq
->sw_tx_ring
) * NUM_TX_BDS_MAX
;
2926 txq
->sw_tx_ring
= kzalloc(size
, GFP_KERNEL
);
2927 if (!txq
->sw_tx_ring
) {
2928 DP_NOTICE(edev
, "Tx buffers ring allocation failed\n");
2932 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2933 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2935 QED_CHAIN_CNT_TYPE_U16
,
2937 sizeof(*p_virt
), &txq
->tx_pbl
);
2944 qede_free_mem_txq(edev
, txq
);
2948 /* This function frees all memory of a single fp */
2949 static void qede_free_mem_fp(struct qede_dev
*edev
, struct qede_fastpath
*fp
)
2953 qede_free_mem_sb(edev
, fp
->sb_info
);
2955 if (fp
->type
& QEDE_FASTPATH_RX
)
2956 qede_free_mem_rxq(edev
, fp
->rxq
);
2958 if (fp
->type
& QEDE_FASTPATH_TX
)
2959 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
2960 qede_free_mem_txq(edev
, &fp
->txqs
[tc
]);
2963 /* This function allocates all memory needed for a single fp (i.e. an entity
2964 * which contains status block, one rx queue and/or multiple per-TC tx queues.
2966 static int qede_alloc_mem_fp(struct qede_dev
*edev
, struct qede_fastpath
*fp
)
2970 rc
= qede_alloc_mem_sb(edev
, fp
->sb_info
, fp
->id
);
2974 if (fp
->type
& QEDE_FASTPATH_RX
) {
2975 rc
= qede_alloc_mem_rxq(edev
, fp
->rxq
);
2980 if (fp
->type
& QEDE_FASTPATH_TX
) {
2981 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2982 rc
= qede_alloc_mem_txq(edev
, &fp
->txqs
[tc
]);
2993 static void qede_free_mem_load(struct qede_dev
*edev
)
2998 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
3000 qede_free_mem_fp(edev
, fp
);
3004 /* This function allocates all qede memory at NIC load. */
3005 static int qede_alloc_mem_load(struct qede_dev
*edev
)
3007 int rc
= 0, queue_id
;
3009 for (queue_id
= 0; queue_id
< QEDE_QUEUE_CNT(edev
); queue_id
++) {
3010 struct qede_fastpath
*fp
= &edev
->fp_array
[queue_id
];
3012 rc
= qede_alloc_mem_fp(edev
, fp
);
3015 "Failed to allocate memory for fastpath - rss id = %d\n",
3017 qede_free_mem_load(edev
);
3025 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
3026 static void qede_init_fp(struct qede_dev
*edev
)
3028 int queue_id
, rxq_index
= 0, txq_index
= 0, tc
;
3029 struct qede_fastpath
*fp
;
3031 for_each_queue(queue_id
) {
3032 fp
= &edev
->fp_array
[queue_id
];
3037 memset((void *)&fp
->napi
, 0, sizeof(fp
->napi
));
3039 memset((void *)fp
->sb_info
, 0, sizeof(*fp
->sb_info
));
3041 if (fp
->type
& QEDE_FASTPATH_RX
) {
3042 memset((void *)fp
->rxq
, 0, sizeof(*fp
->rxq
));
3043 fp
->rxq
->rxq_id
= rxq_index
++;
3046 if (fp
->type
& QEDE_FASTPATH_TX
) {
3047 memset((void *)fp
->txqs
, 0,
3048 (edev
->num_tc
* sizeof(*fp
->txqs
)));
3049 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3050 fp
->txqs
[tc
].index
= txq_index
+
3051 tc
* QEDE_TSS_COUNT(edev
);
3052 if (edev
->dev_info
.is_legacy
)
3053 fp
->txqs
[tc
].is_legacy
= true;
3058 snprintf(fp
->name
, sizeof(fp
->name
), "%s-fp-%d",
3059 edev
->ndev
->name
, queue_id
);
3062 edev
->gro_disable
= !(edev
->ndev
->features
& NETIF_F_GRO
);
3065 static int qede_set_real_num_queues(struct qede_dev
*edev
)
3069 rc
= netif_set_real_num_tx_queues(edev
->ndev
, QEDE_TSS_COUNT(edev
));
3071 DP_NOTICE(edev
, "Failed to set real number of Tx queues\n");
3075 rc
= netif_set_real_num_rx_queues(edev
->ndev
, QEDE_RSS_COUNT(edev
));
3077 DP_NOTICE(edev
, "Failed to set real number of Rx queues\n");
3084 static void qede_napi_disable_remove(struct qede_dev
*edev
)
3089 napi_disable(&edev
->fp_array
[i
].napi
);
3091 netif_napi_del(&edev
->fp_array
[i
].napi
);
3095 static void qede_napi_add_enable(struct qede_dev
*edev
)
3099 /* Add NAPI objects */
3101 netif_napi_add(edev
->ndev
, &edev
->fp_array
[i
].napi
,
3102 qede_poll
, NAPI_POLL_WEIGHT
);
3103 napi_enable(&edev
->fp_array
[i
].napi
);
3107 static void qede_sync_free_irqs(struct qede_dev
*edev
)
3111 for (i
= 0; i
< edev
->int_info
.used_cnt
; i
++) {
3112 if (edev
->int_info
.msix_cnt
) {
3113 synchronize_irq(edev
->int_info
.msix
[i
].vector
);
3114 free_irq(edev
->int_info
.msix
[i
].vector
,
3115 &edev
->fp_array
[i
]);
3117 edev
->ops
->common
->simd_handler_clean(edev
->cdev
, i
);
3121 edev
->int_info
.used_cnt
= 0;
3124 static int qede_req_msix_irqs(struct qede_dev
*edev
)
3128 /* Sanitize number of interrupts == number of prepared RSS queues */
3129 if (QEDE_QUEUE_CNT(edev
) > edev
->int_info
.msix_cnt
) {
3131 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
3132 QEDE_QUEUE_CNT(edev
), edev
->int_info
.msix_cnt
);
3136 for (i
= 0; i
< QEDE_QUEUE_CNT(edev
); i
++) {
3137 rc
= request_irq(edev
->int_info
.msix
[i
].vector
,
3138 qede_msix_fp_int
, 0, edev
->fp_array
[i
].name
,
3139 &edev
->fp_array
[i
]);
3141 DP_ERR(edev
, "Request fp %d irq failed\n", i
);
3142 qede_sync_free_irqs(edev
);
3145 DP_VERBOSE(edev
, NETIF_MSG_INTR
,
3146 "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
3147 edev
->fp_array
[i
].name
, i
,
3148 &edev
->fp_array
[i
]);
3149 edev
->int_info
.used_cnt
++;
3155 static void qede_simd_fp_handler(void *cookie
)
3157 struct qede_fastpath
*fp
= (struct qede_fastpath
*)cookie
;
3159 napi_schedule_irqoff(&fp
->napi
);
3162 static int qede_setup_irqs(struct qede_dev
*edev
)
3166 /* Learn Interrupt configuration */
3167 rc
= edev
->ops
->common
->get_fp_int(edev
->cdev
, &edev
->int_info
);
3171 if (edev
->int_info
.msix_cnt
) {
3172 rc
= qede_req_msix_irqs(edev
);
3175 edev
->ndev
->irq
= edev
->int_info
.msix
[0].vector
;
3177 const struct qed_common_ops
*ops
;
3179 /* qed should learn receive the RSS ids and callbacks */
3180 ops
= edev
->ops
->common
;
3181 for (i
= 0; i
< QEDE_QUEUE_CNT(edev
); i
++)
3182 ops
->simd_handler_config(edev
->cdev
,
3183 &edev
->fp_array
[i
], i
,
3184 qede_simd_fp_handler
);
3185 edev
->int_info
.used_cnt
= QEDE_QUEUE_CNT(edev
);
3190 static int qede_drain_txq(struct qede_dev
*edev
,
3191 struct qede_tx_queue
*txq
, bool allow_drain
)
3195 while (txq
->sw_tx_cons
!= txq
->sw_tx_prod
) {
3199 "Tx queue[%d] is stuck, requesting MCP to drain\n",
3201 rc
= edev
->ops
->common
->drain(edev
->cdev
);
3204 return qede_drain_txq(edev
, txq
, false);
3207 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
3208 txq
->index
, txq
->sw_tx_prod
,
3213 usleep_range(1000, 2000);
3217 /* FW finished processing, wait for HW to transmit all tx packets */
3218 usleep_range(1000, 2000);
3223 static int qede_stop_queues(struct qede_dev
*edev
)
3225 struct qed_update_vport_params vport_update_params
;
3226 struct qed_dev
*cdev
= edev
->cdev
;
3229 /* Disable the vport */
3230 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
3231 vport_update_params
.vport_id
= 0;
3232 vport_update_params
.update_vport_active_flg
= 1;
3233 vport_update_params
.vport_active_flg
= 0;
3234 vport_update_params
.update_rss_flg
= 0;
3236 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
3238 DP_ERR(edev
, "Failed to update vport\n");
3242 /* Flush Tx queues. If needed, request drain from MCP */
3244 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
3246 if (fp
->type
& QEDE_FASTPATH_TX
) {
3247 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3248 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
3250 rc
= qede_drain_txq(edev
, txq
, true);
3257 /* Stop all Queues in reverse order */
3258 for (i
= QEDE_QUEUE_CNT(edev
) - 1; i
>= 0; i
--) {
3259 struct qed_stop_rxq_params rx_params
;
3261 /* Stop the Tx Queue(s) */
3262 if (edev
->fp_array
[i
].type
& QEDE_FASTPATH_TX
) {
3263 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3264 struct qed_stop_txq_params tx_params
;
3267 tx_params
.rss_id
= i
;
3268 val
= edev
->fp_array
[i
].txqs
[tc
].index
;
3269 tx_params
.tx_queue_id
= val
;
3270 rc
= edev
->ops
->q_tx_stop(cdev
, &tx_params
);
3272 DP_ERR(edev
, "Failed to stop TXQ #%d\n",
3273 tx_params
.tx_queue_id
);
3279 /* Stop the Rx Queue */
3280 if (edev
->fp_array
[i
].type
& QEDE_FASTPATH_RX
) {
3281 memset(&rx_params
, 0, sizeof(rx_params
));
3282 rx_params
.rss_id
= i
;
3283 rx_params
.rx_queue_id
= edev
->fp_array
[i
].rxq
->rxq_id
;
3285 rc
= edev
->ops
->q_rx_stop(cdev
, &rx_params
);
3287 DP_ERR(edev
, "Failed to stop RXQ #%d\n", i
);
3293 /* Stop the vport */
3294 rc
= edev
->ops
->vport_stop(cdev
, 0);
3296 DP_ERR(edev
, "Failed to stop VPORT\n");
3301 static int qede_start_queues(struct qede_dev
*edev
, bool clear_stats
)
3304 int vlan_removal_en
= 1;
3305 struct qed_dev
*cdev
= edev
->cdev
;
3306 struct qed_update_vport_params vport_update_params
;
3307 struct qed_queue_start_common_params q_params
;
3308 struct qed_dev_info
*qed_info
= &edev
->dev_info
.common
;
3309 struct qed_start_vport_params start
= {0};
3310 bool reset_rss_indir
= false;
3312 if (!edev
->num_queues
) {
3314 "Cannot update V-VPORT as active as there are no Rx queues\n");
3318 start
.gro_enable
= !edev
->gro_disable
;
3319 start
.mtu
= edev
->ndev
->mtu
;
3321 start
.drop_ttl0
= true;
3322 start
.remove_inner_vlan
= vlan_removal_en
;
3323 start
.clear_stats
= clear_stats
;
3325 rc
= edev
->ops
->vport_start(cdev
, &start
);
3328 DP_ERR(edev
, "Start V-PORT failed %d\n", rc
);
3332 DP_VERBOSE(edev
, NETIF_MSG_IFUP
,
3333 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
3334 start
.vport_id
, edev
->ndev
->mtu
+ 0xe, vlan_removal_en
);
3337 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
3338 dma_addr_t p_phys_table
;
3341 if (fp
->type
& QEDE_FASTPATH_RX
) {
3342 struct qede_rx_queue
*rxq
= fp
->rxq
;
3345 memset(&q_params
, 0, sizeof(q_params
));
3346 q_params
.rss_id
= i
;
3347 q_params
.queue_id
= rxq
->rxq_id
;
3348 q_params
.vport_id
= 0;
3349 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
3350 q_params
.sb_idx
= RX_PI
;
3353 qed_chain_get_pbl_phys(&rxq
->rx_comp_ring
);
3354 page_cnt
= qed_chain_get_page_cnt(&rxq
->rx_comp_ring
);
3356 rc
= edev
->ops
->q_rx_start(cdev
, &q_params
,
3358 rxq
->rx_bd_ring
.p_phys_addr
,
3361 &rxq
->hw_rxq_prod_addr
);
3363 DP_ERR(edev
, "Start RXQ #%d failed %d\n", i
,
3368 val
= &fp
->sb_info
->sb_virt
->pi_array
[RX_PI
];
3369 rxq
->hw_cons_ptr
= val
;
3371 qede_update_rx_prod(edev
, rxq
);
3374 if (!(fp
->type
& QEDE_FASTPATH_TX
))
3377 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3378 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
3380 p_phys_table
= qed_chain_get_pbl_phys(&txq
->tx_pbl
);
3381 page_cnt
= qed_chain_get_page_cnt(&txq
->tx_pbl
);
3383 memset(&q_params
, 0, sizeof(q_params
));
3384 q_params
.rss_id
= i
;
3385 q_params
.queue_id
= txq
->index
;
3386 q_params
.vport_id
= 0;
3387 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
3388 q_params
.sb_idx
= TX_PI(tc
);
3390 rc
= edev
->ops
->q_tx_start(cdev
, &q_params
,
3391 p_phys_table
, page_cnt
,
3392 &txq
->doorbell_addr
);
3394 DP_ERR(edev
, "Start TXQ #%d failed %d\n",
3400 &fp
->sb_info
->sb_virt
->pi_array
[TX_PI(tc
)];
3401 SET_FIELD(txq
->tx_db
.data
.params
,
3402 ETH_DB_DATA_DEST
, DB_DEST_XCM
);
3403 SET_FIELD(txq
->tx_db
.data
.params
, ETH_DB_DATA_AGG_CMD
,
3405 SET_FIELD(txq
->tx_db
.data
.params
,
3406 ETH_DB_DATA_AGG_VAL_SEL
,
3407 DQ_XCM_ETH_TX_BD_PROD_CMD
);
3409 txq
->tx_db
.data
.agg_flags
= DQ_XCM_ETH_DQ_CF_CMD
;
3413 /* Prepare and send the vport enable */
3414 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
3415 vport_update_params
.vport_id
= start
.vport_id
;
3416 vport_update_params
.update_vport_active_flg
= 1;
3417 vport_update_params
.vport_active_flg
= 1;
3419 if ((qed_info
->mf_mode
== QED_MF_NPAR
|| pci_num_vf(edev
->pdev
)) &&
3420 qed_info
->tx_switching
) {
3421 vport_update_params
.update_tx_switching_flg
= 1;
3422 vport_update_params
.tx_switching_flg
= 1;
3425 /* Fill struct with RSS params */
3426 if (QEDE_RSS_COUNT(edev
) > 1) {
3427 vport_update_params
.update_rss_flg
= 1;
3429 /* Need to validate current RSS config uses valid entries */
3430 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3431 if (edev
->rss_params
.rss_ind_table
[i
] >=
3432 QEDE_RSS_COUNT(edev
)) {
3433 reset_rss_indir
= true;
3438 if (!(edev
->rss_params_inited
& QEDE_RSS_INDIR_INITED
) ||
3442 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3445 val
= QEDE_RSS_COUNT(edev
);
3446 indir_val
= ethtool_rxfh_indir_default(i
, val
);
3447 edev
->rss_params
.rss_ind_table
[i
] = indir_val
;
3449 edev
->rss_params_inited
|= QEDE_RSS_INDIR_INITED
;
3452 if (!(edev
->rss_params_inited
& QEDE_RSS_KEY_INITED
)) {
3453 netdev_rss_key_fill(edev
->rss_params
.rss_key
,
3454 sizeof(edev
->rss_params
.rss_key
));
3455 edev
->rss_params_inited
|= QEDE_RSS_KEY_INITED
;
3458 if (!(edev
->rss_params_inited
& QEDE_RSS_CAPS_INITED
)) {
3459 edev
->rss_params
.rss_caps
= QED_RSS_IPV4
|
3463 edev
->rss_params_inited
|= QEDE_RSS_CAPS_INITED
;
3466 memcpy(&vport_update_params
.rss_params
, &edev
->rss_params
,
3467 sizeof(vport_update_params
.rss_params
));
3469 memset(&vport_update_params
.rss_params
, 0,
3470 sizeof(vport_update_params
.rss_params
));
3473 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
3475 DP_ERR(edev
, "Update V-PORT failed %d\n", rc
);
3482 static int qede_set_mcast_rx_mac(struct qede_dev
*edev
,
3483 enum qed_filter_xcast_params_type opcode
,
3484 unsigned char *mac
, int num_macs
)
3486 struct qed_filter_params filter_cmd
;
3489 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
3490 filter_cmd
.type
= QED_FILTER_TYPE_MCAST
;
3491 filter_cmd
.filter
.mcast
.type
= opcode
;
3492 filter_cmd
.filter
.mcast
.num
= num_macs
;
3494 for (i
= 0; i
< num_macs
; i
++, mac
+= ETH_ALEN
)
3495 ether_addr_copy(filter_cmd
.filter
.mcast
.mac
[i
], mac
);
3497 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
3500 enum qede_unload_mode
{
3504 static void qede_unload(struct qede_dev
*edev
, enum qede_unload_mode mode
)
3506 struct qed_link_params link_params
;
3509 DP_INFO(edev
, "Starting qede unload\n");
3511 mutex_lock(&edev
->qede_lock
);
3512 edev
->state
= QEDE_STATE_CLOSED
;
3515 netif_tx_disable(edev
->ndev
);
3516 netif_carrier_off(edev
->ndev
);
3518 /* Reset the link */
3519 memset(&link_params
, 0, sizeof(link_params
));
3520 link_params
.link_up
= false;
3521 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3522 rc
= qede_stop_queues(edev
);
3524 qede_sync_free_irqs(edev
);
3528 DP_INFO(edev
, "Stopped Queues\n");
3530 qede_vlan_mark_nonconfigured(edev
);
3531 edev
->ops
->fastpath_stop(edev
->cdev
);
3533 /* Release the interrupts */
3534 qede_sync_free_irqs(edev
);
3535 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3537 qede_napi_disable_remove(edev
);
3539 qede_free_mem_load(edev
);
3540 qede_free_fp_array(edev
);
3543 mutex_unlock(&edev
->qede_lock
);
3544 DP_INFO(edev
, "Ending qede unload\n");
3547 enum qede_load_mode
{
3552 static int qede_load(struct qede_dev
*edev
, enum qede_load_mode mode
)
3554 struct qed_link_params link_params
;
3555 struct qed_link_output link_output
;
3558 DP_INFO(edev
, "Starting qede load\n");
3560 rc
= qede_set_num_queues(edev
);
3564 rc
= qede_alloc_fp_array(edev
);
3570 rc
= qede_alloc_mem_load(edev
);
3573 DP_INFO(edev
, "Allocated %d RSS queues on %d TC/s\n",
3574 QEDE_QUEUE_CNT(edev
), edev
->num_tc
);
3576 rc
= qede_set_real_num_queues(edev
);
3580 qede_napi_add_enable(edev
);
3581 DP_INFO(edev
, "Napi added and enabled\n");
3583 rc
= qede_setup_irqs(edev
);
3586 DP_INFO(edev
, "Setup IRQs succeeded\n");
3588 rc
= qede_start_queues(edev
, mode
!= QEDE_LOAD_RELOAD
);
3591 DP_INFO(edev
, "Start VPORT, RXQ and TXQ succeeded\n");
3593 /* Add primary mac and set Rx filters */
3594 ether_addr_copy(edev
->primary_mac
, edev
->ndev
->dev_addr
);
3596 mutex_lock(&edev
->qede_lock
);
3597 edev
->state
= QEDE_STATE_OPEN
;
3598 mutex_unlock(&edev
->qede_lock
);
3600 /* Program un-configured VLANs */
3601 qede_configure_vlan_filters(edev
);
3603 /* Ask for link-up using current configuration */
3604 memset(&link_params
, 0, sizeof(link_params
));
3605 link_params
.link_up
= true;
3606 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3608 /* Query whether link is already-up */
3609 memset(&link_output
, 0, sizeof(link_output
));
3610 edev
->ops
->common
->get_link(edev
->cdev
, &link_output
);
3611 qede_link_update(edev
, &link_output
);
3613 DP_INFO(edev
, "Ending successfully qede load\n");
3618 qede_sync_free_irqs(edev
);
3619 memset(&edev
->int_info
.msix_cnt
, 0, sizeof(struct qed_int_info
));
3621 qede_napi_disable_remove(edev
);
3623 qede_free_mem_load(edev
);
3625 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3626 qede_free_fp_array(edev
);
3627 edev
->num_queues
= 0;
3628 edev
->fp_num_tx
= 0;
3629 edev
->fp_num_rx
= 0;
3634 void qede_reload(struct qede_dev
*edev
,
3635 void (*func
)(struct qede_dev
*, union qede_reload_args
*),
3636 union qede_reload_args
*args
)
3638 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3639 /* Call function handler to update parameters
3640 * needed for function load.
3645 qede_load(edev
, QEDE_LOAD_RELOAD
);
3647 mutex_lock(&edev
->qede_lock
);
3648 qede_config_rx_mode(edev
->ndev
);
3649 mutex_unlock(&edev
->qede_lock
);
3652 /* called with rtnl_lock */
3653 static int qede_open(struct net_device
*ndev
)
3655 struct qede_dev
*edev
= netdev_priv(ndev
);
3658 netif_carrier_off(ndev
);
3660 edev
->ops
->common
->set_power_state(edev
->cdev
, PCI_D0
);
3662 rc
= qede_load(edev
, QEDE_LOAD_NORMAL
);
3667 udp_tunnel_get_rx_info(ndev
);
3672 static int qede_close(struct net_device
*ndev
)
3674 struct qede_dev
*edev
= netdev_priv(ndev
);
3676 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3681 static void qede_link_update(void *dev
, struct qed_link_output
*link
)
3683 struct qede_dev
*edev
= dev
;
3685 if (!netif_running(edev
->ndev
)) {
3686 DP_VERBOSE(edev
, NETIF_MSG_LINK
, "Interface is not running\n");
3690 if (link
->link_up
) {
3691 if (!netif_carrier_ok(edev
->ndev
)) {
3692 DP_NOTICE(edev
, "Link is up\n");
3693 netif_tx_start_all_queues(edev
->ndev
);
3694 netif_carrier_on(edev
->ndev
);
3697 if (netif_carrier_ok(edev
->ndev
)) {
3698 DP_NOTICE(edev
, "Link is down\n");
3699 netif_tx_disable(edev
->ndev
);
3700 netif_carrier_off(edev
->ndev
);
3705 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
)
3707 struct qede_dev
*edev
= netdev_priv(ndev
);
3708 struct sockaddr
*addr
= p
;
3711 ASSERT_RTNL(); /* @@@TBD To be removed */
3713 DP_INFO(edev
, "Set_mac_addr called\n");
3715 if (!is_valid_ether_addr(addr
->sa_data
)) {
3716 DP_NOTICE(edev
, "The MAC address is not valid\n");
3720 if (!edev
->ops
->check_mac(edev
->cdev
, addr
->sa_data
)) {
3721 DP_NOTICE(edev
, "qed prevents setting MAC\n");
3725 ether_addr_copy(ndev
->dev_addr
, addr
->sa_data
);
3727 if (!netif_running(ndev
)) {
3728 DP_NOTICE(edev
, "The device is currently down\n");
3732 /* Remove the previous primary mac */
3733 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3738 /* Add MAC filter according to the new unicast HW MAC address */
3739 ether_addr_copy(edev
->primary_mac
, ndev
->dev_addr
);
3740 return qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3745 qede_configure_mcast_filtering(struct net_device
*ndev
,
3746 enum qed_filter_rx_mode_type
*accept_flags
)
3748 struct qede_dev
*edev
= netdev_priv(ndev
);
3749 unsigned char *mc_macs
, *temp
;
3750 struct netdev_hw_addr
*ha
;
3751 int rc
= 0, mc_count
;
3754 size
= 64 * ETH_ALEN
;
3756 mc_macs
= kzalloc(size
, GFP_KERNEL
);
3759 "Failed to allocate memory for multicast MACs\n");
3766 /* Remove all previously configured MAC filters */
3767 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3772 netif_addr_lock_bh(ndev
);
3774 mc_count
= netdev_mc_count(ndev
);
3775 if (mc_count
< 64) {
3776 netdev_for_each_mc_addr(ha
, ndev
) {
3777 ether_addr_copy(temp
, ha
->addr
);
3782 netif_addr_unlock_bh(ndev
);
3784 /* Check for all multicast @@@TBD resource allocation */
3785 if ((ndev
->flags
& IFF_ALLMULTI
) ||
3787 if (*accept_flags
== QED_FILTER_RX_MODE_TYPE_REGULAR
)
3788 *accept_flags
= QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC
;
3790 /* Add all multicast MAC filters */
3791 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3800 static void qede_set_rx_mode(struct net_device
*ndev
)
3802 struct qede_dev
*edev
= netdev_priv(ndev
);
3804 DP_INFO(edev
, "qede_set_rx_mode called\n");
3806 if (edev
->state
!= QEDE_STATE_OPEN
) {
3808 "qede_set_rx_mode called while interface is down\n");
3810 set_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
);
3811 schedule_delayed_work(&edev
->sp_task
, 0);
3815 /* Must be called with qede_lock held */
3816 static void qede_config_rx_mode(struct net_device
*ndev
)
3818 enum qed_filter_rx_mode_type accept_flags
= QED_FILTER_TYPE_UCAST
;
3819 struct qede_dev
*edev
= netdev_priv(ndev
);
3820 struct qed_filter_params rx_mode
;
3821 unsigned char *uc_macs
, *temp
;
3822 struct netdev_hw_addr
*ha
;
3826 netif_addr_lock_bh(ndev
);
3828 uc_count
= netdev_uc_count(ndev
);
3829 size
= uc_count
* ETH_ALEN
;
3831 uc_macs
= kzalloc(size
, GFP_ATOMIC
);
3833 DP_NOTICE(edev
, "Failed to allocate memory for unicast MACs\n");
3834 netif_addr_unlock_bh(ndev
);
3839 netdev_for_each_uc_addr(ha
, ndev
) {
3840 ether_addr_copy(temp
, ha
->addr
);
3844 netif_addr_unlock_bh(ndev
);
3846 /* Configure the struct for the Rx mode */
3847 memset(&rx_mode
, 0, sizeof(struct qed_filter_params
));
3848 rx_mode
.type
= QED_FILTER_TYPE_RX_MODE
;
3850 /* Remove all previous unicast secondary macs and multicast macs
3851 * (configrue / leave the primary mac)
3853 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_REPLACE
,
3858 /* Check for promiscuous */
3859 if ((ndev
->flags
& IFF_PROMISC
) ||
3860 (uc_count
> 15)) { /* @@@TBD resource allocation - 1 */
3861 accept_flags
= QED_FILTER_RX_MODE_TYPE_PROMISC
;
3863 /* Add MAC filters according to the unicast secondary macs */
3867 for (i
= 0; i
< uc_count
; i
++) {
3868 rc
= qede_set_ucast_rx_mac(edev
,
3869 QED_FILTER_XCAST_TYPE_ADD
,
3877 rc
= qede_configure_mcast_filtering(ndev
, &accept_flags
);
3882 /* take care of VLAN mode */
3883 if (ndev
->flags
& IFF_PROMISC
) {
3884 qede_config_accept_any_vlan(edev
, true);
3885 } else if (!edev
->non_configured_vlans
) {
3886 /* It's possible that accept_any_vlan mode is set due to a
3887 * previous setting of IFF_PROMISC. If vlan credits are
3888 * sufficient, disable accept_any_vlan.
3890 qede_config_accept_any_vlan(edev
, false);
3893 rx_mode
.filter
.accept_flags
= accept_flags
;
3894 edev
->ops
->filter_config(edev
->cdev
, &rx_mode
);