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_notice("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 pr_notice("qede_cleanup called\n");
258 unregister_netdevice_notifier(&qede_netdev_notifier
);
259 pci_unregister_driver(&qede_pci_driver
);
263 module_init(qede_init
);
264 module_exit(qede_cleanup
);
266 /* -------------------------------------------------------------------------
268 * -------------------------------------------------------------------------
271 /* Unmap the data and free skb */
272 static int qede_free_tx_pkt(struct qede_dev
*edev
,
273 struct qede_tx_queue
*txq
,
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
,
335 u16 idx
= txq
->sw_tx_prod
& NUM_TX_BDS_MAX
;
336 struct sk_buff
*skb
= txq
->sw_tx_ring
[idx
].skb
;
337 struct eth_tx_bd
*tx_data_bd
;
338 int i
, split_bd_len
= 0;
340 /* Return prod to its position before this skb was handled */
341 qed_chain_set_prod(&txq
->tx_pbl
,
342 le16_to_cpu(txq
->tx_db
.data
.bd_prod
),
345 first_bd
= (struct eth_tx_1st_bd
*)qed_chain_produce(&txq
->tx_pbl
);
348 struct eth_tx_bd
*split
= (struct eth_tx_bd
*)
349 qed_chain_produce(&txq
->tx_pbl
);
350 split_bd_len
= BD_UNMAP_LEN(split
);
354 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(first_bd
),
355 BD_UNMAP_LEN(first_bd
) + split_bd_len
, DMA_TO_DEVICE
);
357 /* Unmap the data of the skb frags */
358 for (i
= 0; i
< nbd
; i
++) {
359 tx_data_bd
= (struct eth_tx_bd
*)
360 qed_chain_produce(&txq
->tx_pbl
);
361 if (tx_data_bd
->nbytes
)
362 dma_unmap_page(&edev
->pdev
->dev
,
363 BD_UNMAP_ADDR(tx_data_bd
),
364 BD_UNMAP_LEN(tx_data_bd
), DMA_TO_DEVICE
);
367 /* Return again prod to its position before this skb was handled */
368 qed_chain_set_prod(&txq
->tx_pbl
,
369 le16_to_cpu(txq
->tx_db
.data
.bd_prod
),
373 dev_kfree_skb_any(skb
);
374 txq
->sw_tx_ring
[idx
].skb
= NULL
;
375 txq
->sw_tx_ring
[idx
].flags
= 0;
378 static u32
qede_xmit_type(struct qede_dev
*edev
,
382 u32 rc
= XMIT_L4_CSUM
;
385 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
)
388 l3_proto
= vlan_get_protocol(skb
);
389 if (l3_proto
== htons(ETH_P_IPV6
) &&
390 (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_IPV6
))
393 if (skb
->encapsulation
)
402 static void qede_set_params_for_ipv6_ext(struct sk_buff
*skb
,
403 struct eth_tx_2nd_bd
*second_bd
,
404 struct eth_tx_3rd_bd
*third_bd
)
407 u16 bd2_bits1
= 0, bd2_bits2
= 0;
409 bd2_bits1
|= (1 << ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT
);
411 bd2_bits2
|= ((((u8
*)skb_transport_header(skb
) - skb
->data
) >> 1) &
412 ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK
)
413 << ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT
;
415 bd2_bits1
|= (ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH
<<
416 ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT
);
418 if (vlan_get_protocol(skb
) == htons(ETH_P_IPV6
))
419 l4_proto
= ipv6_hdr(skb
)->nexthdr
;
421 l4_proto
= ip_hdr(skb
)->protocol
;
423 if (l4_proto
== IPPROTO_UDP
)
424 bd2_bits1
|= 1 << ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT
;
427 third_bd
->data
.bitfields
|=
428 cpu_to_le16(((tcp_hdrlen(skb
) / 4) &
429 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK
) <<
430 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT
);
432 second_bd
->data
.bitfields1
= cpu_to_le16(bd2_bits1
);
433 second_bd
->data
.bitfields2
= cpu_to_le16(bd2_bits2
);
436 static int map_frag_to_bd(struct qede_dev
*edev
,
438 struct eth_tx_bd
*bd
)
442 /* Map skb non-linear frag data for DMA */
443 mapping
= skb_frag_dma_map(&edev
->pdev
->dev
, frag
, 0,
446 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
447 DP_NOTICE(edev
, "Unable to map frag - dropping packet\n");
451 /* Setup the data pointer of the frag data */
452 BD_SET_UNMAP_ADDR_LEN(bd
, mapping
, skb_frag_size(frag
));
457 static u16
qede_get_skb_hlen(struct sk_buff
*skb
, bool is_encap_pkt
)
460 return (skb_inner_transport_header(skb
) +
461 inner_tcp_hdrlen(skb
) - skb
->data
);
463 return (skb_transport_header(skb
) +
464 tcp_hdrlen(skb
) - skb
->data
);
467 /* +2 for 1st BD for headers and 2nd BD for headlen (if required) */
468 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
469 static bool qede_pkt_req_lin(struct qede_dev
*edev
, struct sk_buff
*skb
,
472 int allowed_frags
= ETH_TX_MAX_BDS_PER_NON_LSO_PACKET
- 1;
474 if (xmit_type
& XMIT_LSO
) {
477 hlen
= qede_get_skb_hlen(skb
, xmit_type
& XMIT_ENC
);
479 /* linear payload would require its own BD */
480 if (skb_headlen(skb
) > hlen
)
484 return (skb_shinfo(skb
)->nr_frags
> allowed_frags
);
488 static inline void qede_update_tx_producer(struct qede_tx_queue
*txq
)
490 /* wmb makes sure that the BDs data is updated before updating the
491 * producer, otherwise FW may read old data from the BDs.
495 writel(txq
->tx_db
.raw
, txq
->doorbell_addr
);
497 /* mmiowb is needed to synchronize doorbell writes from more than one
498 * processor. It guarantees that the write arrives to the device before
499 * the queue lock is released and another start_xmit is called (possibly
500 * on another CPU). Without this barrier, the next doorbell can bypass
501 * this doorbell. This is applicable to IA64/Altix systems.
506 /* Main transmit function */
508 netdev_tx_t
qede_start_xmit(struct sk_buff
*skb
,
509 struct net_device
*ndev
)
511 struct qede_dev
*edev
= netdev_priv(ndev
);
512 struct netdev_queue
*netdev_txq
;
513 struct qede_tx_queue
*txq
;
514 struct eth_tx_1st_bd
*first_bd
;
515 struct eth_tx_2nd_bd
*second_bd
= NULL
;
516 struct eth_tx_3rd_bd
*third_bd
= NULL
;
517 struct eth_tx_bd
*tx_data_bd
= NULL
;
521 int rc
, frag_idx
= 0, ipv6_ext
= 0;
525 bool data_split
= false;
527 /* Get tx-queue context and netdev index */
528 txq_index
= skb_get_queue_mapping(skb
);
529 WARN_ON(txq_index
>= QEDE_TSS_CNT(edev
));
530 txq
= QEDE_TX_QUEUE(edev
, txq_index
);
531 netdev_txq
= netdev_get_tx_queue(ndev
, txq_index
);
533 WARN_ON(qed_chain_get_elem_left(&txq
->tx_pbl
) <
534 (MAX_SKB_FRAGS
+ 1));
536 xmit_type
= qede_xmit_type(edev
, skb
, &ipv6_ext
);
538 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
539 if (qede_pkt_req_lin(edev
, skb
, xmit_type
)) {
540 if (skb_linearize(skb
)) {
542 "SKB linearization failed - silently dropping this SKB\n");
543 dev_kfree_skb_any(skb
);
549 /* Fill the entry in the SW ring and the BDs in the FW ring */
550 idx
= txq
->sw_tx_prod
& NUM_TX_BDS_MAX
;
551 txq
->sw_tx_ring
[idx
].skb
= skb
;
552 first_bd
= (struct eth_tx_1st_bd
*)
553 qed_chain_produce(&txq
->tx_pbl
);
554 memset(first_bd
, 0, sizeof(*first_bd
));
555 first_bd
->data
.bd_flags
.bitfields
=
556 1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT
;
558 /* Map skb linear data for DMA and set in the first BD */
559 mapping
= dma_map_single(&edev
->pdev
->dev
, skb
->data
,
560 skb_headlen(skb
), DMA_TO_DEVICE
);
561 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
562 DP_NOTICE(edev
, "SKB mapping failed\n");
563 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, 0, false);
564 qede_update_tx_producer(txq
);
568 BD_SET_UNMAP_ADDR_LEN(first_bd
, mapping
, skb_headlen(skb
));
570 /* In case there is IPv6 with extension headers or LSO we need 2nd and
573 if (unlikely((xmit_type
& XMIT_LSO
) | ipv6_ext
)) {
574 second_bd
= (struct eth_tx_2nd_bd
*)
575 qed_chain_produce(&txq
->tx_pbl
);
576 memset(second_bd
, 0, sizeof(*second_bd
));
579 third_bd
= (struct eth_tx_3rd_bd
*)
580 qed_chain_produce(&txq
->tx_pbl
);
581 memset(third_bd
, 0, sizeof(*third_bd
));
584 /* We need to fill in additional data in second_bd... */
585 tx_data_bd
= (struct eth_tx_bd
*)second_bd
;
588 if (skb_vlan_tag_present(skb
)) {
589 first_bd
->data
.vlan
= cpu_to_le16(skb_vlan_tag_get(skb
));
590 first_bd
->data
.bd_flags
.bitfields
|=
591 1 << ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT
;
594 /* Fill the parsing flags & params according to the requested offload */
595 if (xmit_type
& XMIT_L4_CSUM
) {
596 /* We don't re-calculate IP checksum as it is already done by
599 first_bd
->data
.bd_flags
.bitfields
|=
600 1 << ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT
;
602 if (xmit_type
& XMIT_ENC
) {
603 first_bd
->data
.bd_flags
.bitfields
|=
604 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT
;
605 first_bd
->data
.bitfields
|=
606 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_tx_queue_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))) {
730 netif_tx_stop_queue(netdev_txq
);
731 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
732 "Stop queue was called\n");
733 /* paired memory barrier is in qede_tx_int(), we have to keep
734 * ordering of set_bit() in netif_tx_stop_queue() and read of
739 if (qed_chain_get_elem_left(&txq
->tx_pbl
)
740 >= (MAX_SKB_FRAGS
+ 1) &&
741 (edev
->state
== QEDE_STATE_OPEN
)) {
742 netif_tx_wake_queue(netdev_txq
);
743 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
744 "Wake queue was called\n");
751 int qede_txq_has_work(struct qede_tx_queue
*txq
)
755 /* Tell compiler that consumer and producer can change */
757 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
758 if (qed_chain_get_cons_idx(&txq
->tx_pbl
) == hw_bd_cons
+ 1)
761 return hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
);
764 static int qede_tx_int(struct qede_dev
*edev
,
765 struct qede_tx_queue
*txq
)
767 struct netdev_queue
*netdev_txq
;
769 unsigned int pkts_compl
= 0, bytes_compl
= 0;
772 netdev_txq
= netdev_get_tx_queue(edev
->ndev
, txq
->index
);
774 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
777 while (hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
)) {
780 rc
= qede_free_tx_pkt(edev
, txq
, &len
);
782 DP_NOTICE(edev
, "hw_bd_cons = %d, chain_cons=%d\n",
784 qed_chain_get_cons_idx(&txq
->tx_pbl
));
793 netdev_tx_completed_queue(netdev_txq
, pkts_compl
, bytes_compl
);
795 /* Need to make the tx_bd_cons update visible to start_xmit()
796 * before checking for netif_tx_queue_stopped(). Without the
797 * memory barrier, there is a small possibility that
798 * start_xmit() will miss it and cause the queue to be stopped
800 * On the other hand we need an rmb() here to ensure the proper
801 * ordering of bit testing in the following
802 * netif_tx_queue_stopped(txq) call.
806 if (unlikely(netif_tx_queue_stopped(netdev_txq
))) {
807 /* Taking tx_lock is needed to prevent reenabling the queue
808 * while it's empty. This could have happen if rx_action() gets
809 * suspended in qede_tx_int() after the condition before
810 * netif_tx_wake_queue(), while tx_action (qede_start_xmit()):
812 * stops the queue->sees fresh tx_bd_cons->releases the queue->
813 * sends some packets consuming the whole queue again->
817 __netif_tx_lock(netdev_txq
, smp_processor_id());
819 if ((netif_tx_queue_stopped(netdev_txq
)) &&
820 (edev
->state
== QEDE_STATE_OPEN
) &&
821 (qed_chain_get_elem_left(&txq
->tx_pbl
)
822 >= (MAX_SKB_FRAGS
+ 1))) {
823 netif_tx_wake_queue(netdev_txq
);
824 DP_VERBOSE(edev
, NETIF_MSG_TX_DONE
,
825 "Wake queue was called\n");
828 __netif_tx_unlock(netdev_txq
);
834 bool qede_has_rx_work(struct qede_rx_queue
*rxq
)
836 u16 hw_comp_cons
, sw_comp_cons
;
838 /* Tell compiler that status block fields can change */
841 hw_comp_cons
= le16_to_cpu(*rxq
->hw_cons_ptr
);
842 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
844 return hw_comp_cons
!= sw_comp_cons
;
847 static bool qede_has_tx_work(struct qede_fastpath
*fp
)
851 for (tc
= 0; tc
< fp
->edev
->num_tc
; tc
++)
852 if (qede_txq_has_work(&fp
->txqs
[tc
]))
857 static inline void qede_rx_bd_ring_consume(struct qede_rx_queue
*rxq
)
859 qed_chain_consume(&rxq
->rx_bd_ring
);
863 /* This function reuses the buffer(from an offset) from
864 * consumer index to producer index in the bd ring
866 static inline void qede_reuse_page(struct qede_dev
*edev
,
867 struct qede_rx_queue
*rxq
,
868 struct sw_rx_data
*curr_cons
)
870 struct eth_rx_bd
*rx_bd_prod
= qed_chain_produce(&rxq
->rx_bd_ring
);
871 struct sw_rx_data
*curr_prod
;
872 dma_addr_t new_mapping
;
874 curr_prod
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
875 *curr_prod
= *curr_cons
;
877 new_mapping
= curr_prod
->mapping
+ curr_prod
->page_offset
;
879 rx_bd_prod
->addr
.hi
= cpu_to_le32(upper_32_bits(new_mapping
));
880 rx_bd_prod
->addr
.lo
= cpu_to_le32(lower_32_bits(new_mapping
));
883 curr_cons
->data
= NULL
;
886 /* In case of allocation failures reuse buffers
887 * from consumer index to produce buffers for firmware
889 void qede_recycle_rx_bd_ring(struct qede_rx_queue
*rxq
,
890 struct qede_dev
*edev
, u8 count
)
892 struct sw_rx_data
*curr_cons
;
894 for (; count
> 0; count
--) {
895 curr_cons
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
];
896 qede_reuse_page(edev
, rxq
, curr_cons
);
897 qede_rx_bd_ring_consume(rxq
);
901 static inline int qede_realloc_rx_buffer(struct qede_dev
*edev
,
902 struct qede_rx_queue
*rxq
,
903 struct sw_rx_data
*curr_cons
)
905 /* Move to the next segment in the page */
906 curr_cons
->page_offset
+= rxq
->rx_buf_seg_size
;
908 if (curr_cons
->page_offset
== PAGE_SIZE
) {
909 if (unlikely(qede_alloc_rx_buffer(edev
, rxq
))) {
910 /* Since we failed to allocate new buffer
911 * current buffer can be used again.
913 curr_cons
->page_offset
-= rxq
->rx_buf_seg_size
;
918 dma_unmap_page(&edev
->pdev
->dev
, curr_cons
->mapping
,
919 PAGE_SIZE
, DMA_FROM_DEVICE
);
921 /* Increment refcount of the page as we don't want
922 * network stack to take the ownership of the page
923 * which can be recycled multiple times by the driver.
925 page_ref_inc(curr_cons
->data
);
926 qede_reuse_page(edev
, rxq
, curr_cons
);
932 static inline void qede_update_rx_prod(struct qede_dev
*edev
,
933 struct qede_rx_queue
*rxq
)
935 u16 bd_prod
= qed_chain_get_prod_idx(&rxq
->rx_bd_ring
);
936 u16 cqe_prod
= qed_chain_get_prod_idx(&rxq
->rx_comp_ring
);
937 struct eth_rx_prod_data rx_prods
= {0};
939 /* Update producers */
940 rx_prods
.bd_prod
= cpu_to_le16(bd_prod
);
941 rx_prods
.cqe_prod
= cpu_to_le16(cqe_prod
);
943 /* Make sure that the BD and SGE data is updated before updating the
944 * producers since FW might read the BD/SGE right after the producer
949 internal_ram_wr(rxq
->hw_rxq_prod_addr
, sizeof(rx_prods
),
952 /* mmiowb is needed to synchronize doorbell writes from more than one
953 * processor. It guarantees that the write arrives to the device before
954 * the napi lock is released and another qede_poll is called (possibly
955 * on another CPU). Without this barrier, the next doorbell can bypass
956 * this doorbell. This is applicable to IA64/Altix systems.
961 static u32
qede_get_rxhash(struct qede_dev
*edev
,
964 enum pkt_hash_types
*rxhash_type
)
966 enum rss_hash_type htype
;
968 htype
= GET_FIELD(bitfields
, ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE
);
970 if ((edev
->ndev
->features
& NETIF_F_RXHASH
) && htype
) {
971 *rxhash_type
= ((htype
== RSS_HASH_TYPE_IPV4
) ||
972 (htype
== RSS_HASH_TYPE_IPV6
)) ?
973 PKT_HASH_TYPE_L3
: PKT_HASH_TYPE_L4
;
974 return le32_to_cpu(rss_hash
);
976 *rxhash_type
= PKT_HASH_TYPE_NONE
;
980 static void qede_set_skb_csum(struct sk_buff
*skb
, u8 csum_flag
)
982 skb_checksum_none_assert(skb
);
984 if (csum_flag
& QEDE_CSUM_UNNECESSARY
)
985 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
987 if (csum_flag
& QEDE_TUNN_CSUM_UNNECESSARY
)
991 static inline void qede_skb_receive(struct qede_dev
*edev
,
992 struct qede_fastpath
*fp
,
997 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
),
1000 napi_gro_receive(&fp
->napi
, skb
);
1003 static void qede_set_gro_params(struct qede_dev
*edev
,
1004 struct sk_buff
*skb
,
1005 struct eth_fast_path_rx_tpa_start_cqe
*cqe
)
1007 u16 parsing_flags
= le16_to_cpu(cqe
->pars_flags
.flags
);
1009 if (((parsing_flags
>> PARSING_AND_ERR_FLAGS_L3TYPE_SHIFT
) &
1010 PARSING_AND_ERR_FLAGS_L3TYPE_MASK
) == 2)
1011 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV6
;
1013 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV4
;
1015 skb_shinfo(skb
)->gso_size
= __le16_to_cpu(cqe
->len_on_first_bd
) -
1019 static int qede_fill_frag_skb(struct qede_dev
*edev
,
1020 struct qede_rx_queue
*rxq
,
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
->rss_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(
1413 edev
->cdev
, fp
->rss_id
,
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 "Build_skb 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
,
1581 skb_set_hash(skb
, rx_hash
, rxhash_type
);
1583 qede_set_skb_csum(skb
, csum_flag
);
1585 skb_record_rx_queue(skb
, fp
->rss_id
);
1587 qede_skb_receive(edev
, fp
, skb
, le16_to_cpu(fp_cqe
->vlan_tag
));
1591 next_cqe
: /* don't consume bd rx buffer */
1592 qed_chain_recycle_consumed(&rxq
->rx_comp_ring
);
1593 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
1594 /* CR TPA - revisit how to handle budget in TPA perhaps
1597 if (rx_pkt
== budget
)
1599 } /* repeat while sw_comp_cons != hw_comp_cons... */
1601 /* Update producers */
1602 qede_update_rx_prod(edev
, rxq
);
1607 static int qede_poll(struct napi_struct
*napi
, int budget
)
1609 struct qede_fastpath
*fp
= container_of(napi
, struct qede_fastpath
,
1611 struct qede_dev
*edev
= fp
->edev
;
1612 int rx_work_done
= 0;
1615 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
1616 if (qede_txq_has_work(&fp
->txqs
[tc
]))
1617 qede_tx_int(edev
, &fp
->txqs
[tc
]);
1619 rx_work_done
= qede_has_rx_work(fp
->rxq
) ?
1620 qede_rx_int(fp
, budget
) : 0;
1621 if (rx_work_done
< budget
) {
1622 qed_sb_update_sb_idx(fp
->sb_info
);
1623 /* *_has_*_work() reads the status block,
1624 * thus we need to ensure that status block indices
1625 * have been actually read (qed_sb_update_sb_idx)
1626 * prior to this check (*_has_*_work) so that
1627 * we won't write the "newer" value of the status block
1628 * to HW (if there was a DMA right after
1629 * qede_has_rx_work and if there is no rmb, the memory
1630 * reading (qed_sb_update_sb_idx) may be postponed
1631 * to right before *_ack_sb). In this case there
1632 * will never be another interrupt until there is
1633 * another update of the status block, while there
1634 * is still unhandled work.
1638 /* Fall out from the NAPI loop if needed */
1639 if (!(qede_has_rx_work(fp
->rxq
) ||
1640 qede_has_tx_work(fp
))) {
1641 napi_complete(napi
);
1643 /* Update and reenable interrupts */
1644 qed_sb_ack(fp
->sb_info
, IGU_INT_ENABLE
,
1647 rx_work_done
= budget
;
1651 return rx_work_done
;
1654 static irqreturn_t
qede_msix_fp_int(int irq
, void *fp_cookie
)
1656 struct qede_fastpath
*fp
= fp_cookie
;
1658 qed_sb_ack(fp
->sb_info
, IGU_INT_DISABLE
, 0 /*do not update*/);
1660 napi_schedule_irqoff(&fp
->napi
);
1664 /* -------------------------------------------------------------------------
1666 * -------------------------------------------------------------------------
1669 static int qede_open(struct net_device
*ndev
);
1670 static int qede_close(struct net_device
*ndev
);
1671 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
);
1672 static void qede_set_rx_mode(struct net_device
*ndev
);
1673 static void qede_config_rx_mode(struct net_device
*ndev
);
1675 static int qede_set_ucast_rx_mac(struct qede_dev
*edev
,
1676 enum qed_filter_xcast_params_type opcode
,
1677 unsigned char mac
[ETH_ALEN
])
1679 struct qed_filter_params filter_cmd
;
1681 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1682 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1683 filter_cmd
.filter
.ucast
.type
= opcode
;
1684 filter_cmd
.filter
.ucast
.mac_valid
= 1;
1685 ether_addr_copy(filter_cmd
.filter
.ucast
.mac
, mac
);
1687 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1690 static int qede_set_ucast_rx_vlan(struct qede_dev
*edev
,
1691 enum qed_filter_xcast_params_type opcode
,
1694 struct qed_filter_params filter_cmd
;
1696 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1697 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1698 filter_cmd
.filter
.ucast
.type
= opcode
;
1699 filter_cmd
.filter
.ucast
.vlan_valid
= 1;
1700 filter_cmd
.filter
.ucast
.vlan
= vid
;
1702 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1705 void qede_fill_by_demand_stats(struct qede_dev
*edev
)
1707 struct qed_eth_stats stats
;
1709 edev
->ops
->get_vport_stats(edev
->cdev
, &stats
);
1710 edev
->stats
.no_buff_discards
= stats
.no_buff_discards
;
1711 edev
->stats
.rx_ucast_bytes
= stats
.rx_ucast_bytes
;
1712 edev
->stats
.rx_mcast_bytes
= stats
.rx_mcast_bytes
;
1713 edev
->stats
.rx_bcast_bytes
= stats
.rx_bcast_bytes
;
1714 edev
->stats
.rx_ucast_pkts
= stats
.rx_ucast_pkts
;
1715 edev
->stats
.rx_mcast_pkts
= stats
.rx_mcast_pkts
;
1716 edev
->stats
.rx_bcast_pkts
= stats
.rx_bcast_pkts
;
1717 edev
->stats
.mftag_filter_discards
= stats
.mftag_filter_discards
;
1718 edev
->stats
.mac_filter_discards
= stats
.mac_filter_discards
;
1720 edev
->stats
.tx_ucast_bytes
= stats
.tx_ucast_bytes
;
1721 edev
->stats
.tx_mcast_bytes
= stats
.tx_mcast_bytes
;
1722 edev
->stats
.tx_bcast_bytes
= stats
.tx_bcast_bytes
;
1723 edev
->stats
.tx_ucast_pkts
= stats
.tx_ucast_pkts
;
1724 edev
->stats
.tx_mcast_pkts
= stats
.tx_mcast_pkts
;
1725 edev
->stats
.tx_bcast_pkts
= stats
.tx_bcast_pkts
;
1726 edev
->stats
.tx_err_drop_pkts
= stats
.tx_err_drop_pkts
;
1727 edev
->stats
.coalesced_pkts
= stats
.tpa_coalesced_pkts
;
1728 edev
->stats
.coalesced_events
= stats
.tpa_coalesced_events
;
1729 edev
->stats
.coalesced_aborts_num
= stats
.tpa_aborts_num
;
1730 edev
->stats
.non_coalesced_pkts
= stats
.tpa_not_coalesced_pkts
;
1731 edev
->stats
.coalesced_bytes
= stats
.tpa_coalesced_bytes
;
1733 edev
->stats
.rx_64_byte_packets
= stats
.rx_64_byte_packets
;
1734 edev
->stats
.rx_65_to_127_byte_packets
= stats
.rx_65_to_127_byte_packets
;
1735 edev
->stats
.rx_128_to_255_byte_packets
=
1736 stats
.rx_128_to_255_byte_packets
;
1737 edev
->stats
.rx_256_to_511_byte_packets
=
1738 stats
.rx_256_to_511_byte_packets
;
1739 edev
->stats
.rx_512_to_1023_byte_packets
=
1740 stats
.rx_512_to_1023_byte_packets
;
1741 edev
->stats
.rx_1024_to_1518_byte_packets
=
1742 stats
.rx_1024_to_1518_byte_packets
;
1743 edev
->stats
.rx_1519_to_1522_byte_packets
=
1744 stats
.rx_1519_to_1522_byte_packets
;
1745 edev
->stats
.rx_1519_to_2047_byte_packets
=
1746 stats
.rx_1519_to_2047_byte_packets
;
1747 edev
->stats
.rx_2048_to_4095_byte_packets
=
1748 stats
.rx_2048_to_4095_byte_packets
;
1749 edev
->stats
.rx_4096_to_9216_byte_packets
=
1750 stats
.rx_4096_to_9216_byte_packets
;
1751 edev
->stats
.rx_9217_to_16383_byte_packets
=
1752 stats
.rx_9217_to_16383_byte_packets
;
1753 edev
->stats
.rx_crc_errors
= stats
.rx_crc_errors
;
1754 edev
->stats
.rx_mac_crtl_frames
= stats
.rx_mac_crtl_frames
;
1755 edev
->stats
.rx_pause_frames
= stats
.rx_pause_frames
;
1756 edev
->stats
.rx_pfc_frames
= stats
.rx_pfc_frames
;
1757 edev
->stats
.rx_align_errors
= stats
.rx_align_errors
;
1758 edev
->stats
.rx_carrier_errors
= stats
.rx_carrier_errors
;
1759 edev
->stats
.rx_oversize_packets
= stats
.rx_oversize_packets
;
1760 edev
->stats
.rx_jabbers
= stats
.rx_jabbers
;
1761 edev
->stats
.rx_undersize_packets
= stats
.rx_undersize_packets
;
1762 edev
->stats
.rx_fragments
= stats
.rx_fragments
;
1763 edev
->stats
.tx_64_byte_packets
= stats
.tx_64_byte_packets
;
1764 edev
->stats
.tx_65_to_127_byte_packets
= stats
.tx_65_to_127_byte_packets
;
1765 edev
->stats
.tx_128_to_255_byte_packets
=
1766 stats
.tx_128_to_255_byte_packets
;
1767 edev
->stats
.tx_256_to_511_byte_packets
=
1768 stats
.tx_256_to_511_byte_packets
;
1769 edev
->stats
.tx_512_to_1023_byte_packets
=
1770 stats
.tx_512_to_1023_byte_packets
;
1771 edev
->stats
.tx_1024_to_1518_byte_packets
=
1772 stats
.tx_1024_to_1518_byte_packets
;
1773 edev
->stats
.tx_1519_to_2047_byte_packets
=
1774 stats
.tx_1519_to_2047_byte_packets
;
1775 edev
->stats
.tx_2048_to_4095_byte_packets
=
1776 stats
.tx_2048_to_4095_byte_packets
;
1777 edev
->stats
.tx_4096_to_9216_byte_packets
=
1778 stats
.tx_4096_to_9216_byte_packets
;
1779 edev
->stats
.tx_9217_to_16383_byte_packets
=
1780 stats
.tx_9217_to_16383_byte_packets
;
1781 edev
->stats
.tx_pause_frames
= stats
.tx_pause_frames
;
1782 edev
->stats
.tx_pfc_frames
= stats
.tx_pfc_frames
;
1783 edev
->stats
.tx_lpi_entry_count
= stats
.tx_lpi_entry_count
;
1784 edev
->stats
.tx_total_collisions
= stats
.tx_total_collisions
;
1785 edev
->stats
.brb_truncates
= stats
.brb_truncates
;
1786 edev
->stats
.brb_discards
= stats
.brb_discards
;
1787 edev
->stats
.tx_mac_ctrl_frames
= stats
.tx_mac_ctrl_frames
;
1790 static struct rtnl_link_stats64
*qede_get_stats64(
1791 struct net_device
*dev
,
1792 struct rtnl_link_stats64
*stats
)
1794 struct qede_dev
*edev
= netdev_priv(dev
);
1796 qede_fill_by_demand_stats(edev
);
1798 stats
->rx_packets
= edev
->stats
.rx_ucast_pkts
+
1799 edev
->stats
.rx_mcast_pkts
+
1800 edev
->stats
.rx_bcast_pkts
;
1801 stats
->tx_packets
= edev
->stats
.tx_ucast_pkts
+
1802 edev
->stats
.tx_mcast_pkts
+
1803 edev
->stats
.tx_bcast_pkts
;
1805 stats
->rx_bytes
= edev
->stats
.rx_ucast_bytes
+
1806 edev
->stats
.rx_mcast_bytes
+
1807 edev
->stats
.rx_bcast_bytes
;
1809 stats
->tx_bytes
= edev
->stats
.tx_ucast_bytes
+
1810 edev
->stats
.tx_mcast_bytes
+
1811 edev
->stats
.tx_bcast_bytes
;
1813 stats
->tx_errors
= edev
->stats
.tx_err_drop_pkts
;
1814 stats
->multicast
= edev
->stats
.rx_mcast_pkts
+
1815 edev
->stats
.rx_bcast_pkts
;
1817 stats
->rx_fifo_errors
= edev
->stats
.no_buff_discards
;
1819 stats
->collisions
= edev
->stats
.tx_total_collisions
;
1820 stats
->rx_crc_errors
= edev
->stats
.rx_crc_errors
;
1821 stats
->rx_frame_errors
= edev
->stats
.rx_align_errors
;
1826 #ifdef CONFIG_QED_SRIOV
1827 static int qede_get_vf_config(struct net_device
*dev
, int vfidx
,
1828 struct ifla_vf_info
*ivi
)
1830 struct qede_dev
*edev
= netdev_priv(dev
);
1835 return edev
->ops
->iov
->get_config(edev
->cdev
, vfidx
, ivi
);
1838 static int qede_set_vf_rate(struct net_device
*dev
, int vfidx
,
1839 int min_tx_rate
, int max_tx_rate
)
1841 struct qede_dev
*edev
= netdev_priv(dev
);
1843 return edev
->ops
->iov
->set_rate(edev
->cdev
, vfidx
, min_tx_rate
,
1847 static int qede_set_vf_spoofchk(struct net_device
*dev
, int vfidx
, bool val
)
1849 struct qede_dev
*edev
= netdev_priv(dev
);
1854 return edev
->ops
->iov
->set_spoof(edev
->cdev
, vfidx
, val
);
1857 static int qede_set_vf_link_state(struct net_device
*dev
, int vfidx
,
1860 struct qede_dev
*edev
= netdev_priv(dev
);
1865 return edev
->ops
->iov
->set_link_state(edev
->cdev
, vfidx
, link_state
);
1869 static void qede_config_accept_any_vlan(struct qede_dev
*edev
, bool action
)
1871 struct qed_update_vport_params params
;
1874 /* Proceed only if action actually needs to be performed */
1875 if (edev
->accept_any_vlan
== action
)
1878 memset(¶ms
, 0, sizeof(params
));
1880 params
.vport_id
= 0;
1881 params
.accept_any_vlan
= action
;
1882 params
.update_accept_any_vlan_flg
= 1;
1884 rc
= edev
->ops
->vport_update(edev
->cdev
, ¶ms
);
1886 DP_ERR(edev
, "Failed to %s accept-any-vlan\n",
1887 action
? "enable" : "disable");
1889 DP_INFO(edev
, "%s accept-any-vlan\n",
1890 action
? "enabled" : "disabled");
1891 edev
->accept_any_vlan
= action
;
1895 static int qede_vlan_rx_add_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1897 struct qede_dev
*edev
= netdev_priv(dev
);
1898 struct qede_vlan
*vlan
, *tmp
;
1901 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan 0x%04x\n", vid
);
1903 vlan
= kzalloc(sizeof(*vlan
), GFP_KERNEL
);
1905 DP_INFO(edev
, "Failed to allocate struct for vlan\n");
1908 INIT_LIST_HEAD(&vlan
->list
);
1910 vlan
->configured
= false;
1912 /* Verify vlan isn't already configured */
1913 list_for_each_entry(tmp
, &edev
->vlan_list
, list
) {
1914 if (tmp
->vid
== vlan
->vid
) {
1915 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
1916 "vlan already configured\n");
1922 /* If interface is down, cache this VLAN ID and return */
1923 if (edev
->state
!= QEDE_STATE_OPEN
) {
1924 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
1925 "Interface is down, VLAN %d will be configured when interface is up\n",
1928 edev
->non_configured_vlans
++;
1929 list_add(&vlan
->list
, &edev
->vlan_list
);
1934 /* Check for the filter limit.
1935 * Note - vlan0 has a reserved filter and can be added without
1936 * worrying about quota
1938 if ((edev
->configured_vlans
< edev
->dev_info
.num_vlan_filters
) ||
1940 rc
= qede_set_ucast_rx_vlan(edev
,
1941 QED_FILTER_XCAST_TYPE_ADD
,
1944 DP_ERR(edev
, "Failed to configure VLAN %d\n",
1949 vlan
->configured
= true;
1951 /* vlan0 filter isn't consuming out of our quota */
1953 edev
->configured_vlans
++;
1955 /* Out of quota; Activate accept-any-VLAN mode */
1956 if (!edev
->non_configured_vlans
)
1957 qede_config_accept_any_vlan(edev
, true);
1959 edev
->non_configured_vlans
++;
1962 list_add(&vlan
->list
, &edev
->vlan_list
);
1967 static void qede_del_vlan_from_list(struct qede_dev
*edev
,
1968 struct qede_vlan
*vlan
)
1970 /* vlan0 filter isn't consuming out of our quota */
1971 if (vlan
->vid
!= 0) {
1972 if (vlan
->configured
)
1973 edev
->configured_vlans
--;
1975 edev
->non_configured_vlans
--;
1978 list_del(&vlan
->list
);
1982 static int qede_configure_vlan_filters(struct qede_dev
*edev
)
1984 int rc
= 0, real_rc
= 0, accept_any_vlan
= 0;
1985 struct qed_dev_eth_info
*dev_info
;
1986 struct qede_vlan
*vlan
= NULL
;
1988 if (list_empty(&edev
->vlan_list
))
1991 dev_info
= &edev
->dev_info
;
1993 /* Configure non-configured vlans */
1994 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
1995 if (vlan
->configured
)
1998 /* We have used all our credits, now enable accept_any_vlan */
1999 if ((vlan
->vid
!= 0) &&
2000 (edev
->configured_vlans
== dev_info
->num_vlan_filters
)) {
2001 accept_any_vlan
= 1;
2005 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan %d\n", vlan
->vid
);
2007 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_ADD
,
2010 DP_ERR(edev
, "Failed to configure VLAN %u\n",
2016 vlan
->configured
= true;
2017 /* vlan0 filter doesn't consume our VLAN filter's quota */
2018 if (vlan
->vid
!= 0) {
2019 edev
->non_configured_vlans
--;
2020 edev
->configured_vlans
++;
2024 /* enable accept_any_vlan mode if we have more VLANs than credits,
2025 * or remove accept_any_vlan mode if we've actually removed
2026 * a non-configured vlan, and all remaining vlans are truly configured.
2029 if (accept_any_vlan
)
2030 qede_config_accept_any_vlan(edev
, true);
2031 else if (!edev
->non_configured_vlans
)
2032 qede_config_accept_any_vlan(edev
, false);
2037 static int qede_vlan_rx_kill_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
2039 struct qede_dev
*edev
= netdev_priv(dev
);
2040 struct qede_vlan
*vlan
= NULL
;
2043 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
, "Removing vlan 0x%04x\n", vid
);
2045 /* Find whether entry exists */
2046 list_for_each_entry(vlan
, &edev
->vlan_list
, list
)
2047 if (vlan
->vid
== vid
)
2050 if (!vlan
|| (vlan
->vid
!= vid
)) {
2051 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
2052 "Vlan isn't configured\n");
2056 if (edev
->state
!= QEDE_STATE_OPEN
) {
2057 /* As interface is already down, we don't have a VPORT
2058 * instance to remove vlan filter. So just update vlan list
2060 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
2061 "Interface is down, removing VLAN from list only\n");
2062 qede_del_vlan_from_list(edev
, vlan
);
2067 if (vlan
->configured
) {
2068 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_DEL
,
2071 DP_ERR(edev
, "Failed to remove VLAN %d\n", vid
);
2076 qede_del_vlan_from_list(edev
, vlan
);
2078 /* We have removed a VLAN - try to see if we can
2079 * configure non-configured VLAN from the list.
2081 rc
= qede_configure_vlan_filters(edev
);
2086 static void qede_vlan_mark_nonconfigured(struct qede_dev
*edev
)
2088 struct qede_vlan
*vlan
= NULL
;
2090 if (list_empty(&edev
->vlan_list
))
2093 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
2094 if (!vlan
->configured
)
2097 vlan
->configured
= false;
2099 /* vlan0 filter isn't consuming out of our quota */
2100 if (vlan
->vid
!= 0) {
2101 edev
->non_configured_vlans
++;
2102 edev
->configured_vlans
--;
2105 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
2106 "marked vlan %d as non-configured\n",
2110 edev
->accept_any_vlan
= false;
2113 int qede_set_features(struct net_device
*dev
, netdev_features_t features
)
2115 struct qede_dev
*edev
= netdev_priv(dev
);
2116 netdev_features_t changes
= features
^ dev
->features
;
2117 bool need_reload
= false;
2119 /* No action needed if hardware GRO is disabled during driver load */
2120 if (changes
& NETIF_F_GRO
) {
2121 if (dev
->features
& NETIF_F_GRO
)
2122 need_reload
= !edev
->gro_disable
;
2124 need_reload
= edev
->gro_disable
;
2127 if (need_reload
&& netif_running(edev
->ndev
)) {
2128 dev
->features
= features
;
2129 qede_reload(edev
, NULL
, NULL
);
2136 static void qede_udp_tunnel_add(struct net_device
*dev
,
2137 struct udp_tunnel_info
*ti
)
2139 struct qede_dev
*edev
= netdev_priv(dev
);
2140 u16 t_port
= ntohs(ti
->port
);
2143 case UDP_TUNNEL_TYPE_VXLAN
:
2144 if (edev
->vxlan_dst_port
)
2147 edev
->vxlan_dst_port
= t_port
;
2149 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added vxlan port=%d",
2152 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
2154 case UDP_TUNNEL_TYPE_GENEVE
:
2155 if (edev
->geneve_dst_port
)
2158 edev
->geneve_dst_port
= t_port
;
2160 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added geneve port=%d",
2162 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
2168 schedule_delayed_work(&edev
->sp_task
, 0);
2171 static void qede_udp_tunnel_del(struct net_device
*dev
,
2172 struct udp_tunnel_info
*ti
)
2174 struct qede_dev
*edev
= netdev_priv(dev
);
2175 u16 t_port
= ntohs(ti
->port
);
2178 case UDP_TUNNEL_TYPE_VXLAN
:
2179 if (t_port
!= edev
->vxlan_dst_port
)
2182 edev
->vxlan_dst_port
= 0;
2184 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted vxlan port=%d",
2187 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
2189 case UDP_TUNNEL_TYPE_GENEVE
:
2190 if (t_port
!= edev
->geneve_dst_port
)
2193 edev
->geneve_dst_port
= 0;
2195 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted geneve port=%d",
2197 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
2203 schedule_delayed_work(&edev
->sp_task
, 0);
2206 static const struct net_device_ops qede_netdev_ops
= {
2207 .ndo_open
= qede_open
,
2208 .ndo_stop
= qede_close
,
2209 .ndo_start_xmit
= qede_start_xmit
,
2210 .ndo_set_rx_mode
= qede_set_rx_mode
,
2211 .ndo_set_mac_address
= qede_set_mac_addr
,
2212 .ndo_validate_addr
= eth_validate_addr
,
2213 .ndo_change_mtu
= qede_change_mtu
,
2214 #ifdef CONFIG_QED_SRIOV
2215 .ndo_set_vf_mac
= qede_set_vf_mac
,
2216 .ndo_set_vf_vlan
= qede_set_vf_vlan
,
2218 .ndo_vlan_rx_add_vid
= qede_vlan_rx_add_vid
,
2219 .ndo_vlan_rx_kill_vid
= qede_vlan_rx_kill_vid
,
2220 .ndo_set_features
= qede_set_features
,
2221 .ndo_get_stats64
= qede_get_stats64
,
2222 #ifdef CONFIG_QED_SRIOV
2223 .ndo_set_vf_link_state
= qede_set_vf_link_state
,
2224 .ndo_set_vf_spoofchk
= qede_set_vf_spoofchk
,
2225 .ndo_get_vf_config
= qede_get_vf_config
,
2226 .ndo_set_vf_rate
= qede_set_vf_rate
,
2228 .ndo_udp_tunnel_add
= qede_udp_tunnel_add
,
2229 .ndo_udp_tunnel_del
= qede_udp_tunnel_del
,
2232 /* -------------------------------------------------------------------------
2233 * START OF PROBE / REMOVE
2234 * -------------------------------------------------------------------------
2237 static struct qede_dev
*qede_alloc_etherdev(struct qed_dev
*cdev
,
2238 struct pci_dev
*pdev
,
2239 struct qed_dev_eth_info
*info
,
2243 struct net_device
*ndev
;
2244 struct qede_dev
*edev
;
2246 ndev
= alloc_etherdev_mqs(sizeof(*edev
),
2250 pr_err("etherdev allocation failed\n");
2254 edev
= netdev_priv(ndev
);
2258 edev
->dp_module
= dp_module
;
2259 edev
->dp_level
= dp_level
;
2260 edev
->ops
= qed_ops
;
2261 edev
->q_num_rx_buffers
= NUM_RX_BDS_DEF
;
2262 edev
->q_num_tx_buffers
= NUM_TX_BDS_DEF
;
2264 SET_NETDEV_DEV(ndev
, &pdev
->dev
);
2266 memset(&edev
->stats
, 0, sizeof(edev
->stats
));
2267 memcpy(&edev
->dev_info
, info
, sizeof(*info
));
2269 edev
->num_tc
= edev
->dev_info
.num_tc
;
2271 INIT_LIST_HEAD(&edev
->vlan_list
);
2276 static void qede_init_ndev(struct qede_dev
*edev
)
2278 struct net_device
*ndev
= edev
->ndev
;
2279 struct pci_dev
*pdev
= edev
->pdev
;
2282 pci_set_drvdata(pdev
, ndev
);
2284 ndev
->mem_start
= edev
->dev_info
.common
.pci_mem_start
;
2285 ndev
->base_addr
= ndev
->mem_start
;
2286 ndev
->mem_end
= edev
->dev_info
.common
.pci_mem_end
;
2287 ndev
->irq
= edev
->dev_info
.common
.pci_irq
;
2289 ndev
->watchdog_timeo
= TX_TIMEOUT
;
2291 ndev
->netdev_ops
= &qede_netdev_ops
;
2293 qede_set_ethtool_ops(ndev
);
2295 /* user-changeble features */
2296 hw_features
= NETIF_F_GRO
| NETIF_F_SG
|
2297 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2298 NETIF_F_TSO
| NETIF_F_TSO6
;
2301 hw_features
|= NETIF_F_GSO_GRE
| NETIF_F_GSO_UDP_TUNNEL
|
2303 ndev
->hw_enc_features
= NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2304 NETIF_F_SG
| NETIF_F_TSO
| NETIF_F_TSO_ECN
|
2305 NETIF_F_TSO6
| NETIF_F_GSO_GRE
|
2306 NETIF_F_GSO_UDP_TUNNEL
| NETIF_F_RXCSUM
;
2308 ndev
->vlan_features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
2310 ndev
->features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
2311 NETIF_F_HW_VLAN_CTAG_RX
| NETIF_F_HIGHDMA
|
2312 NETIF_F_HW_VLAN_CTAG_FILTER
| NETIF_F_HW_VLAN_CTAG_TX
;
2314 ndev
->hw_features
= hw_features
;
2316 /* Set network device HW mac */
2317 ether_addr_copy(edev
->ndev
->dev_addr
, edev
->dev_info
.common
.hw_mac
);
2320 /* This function converts from 32b param to two params of level and module
2321 * Input 32b decoding:
2322 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
2323 * 'happy' flow, e.g. memory allocation failed.
2324 * b30 - enable all INFO prints. INFO prints are for major steps in the flow
2325 * and provide important parameters.
2326 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
2327 * module. VERBOSE prints are for tracking the specific flow in low level.
2329 * Notice that the level should be that of the lowest required logs.
2331 void qede_config_debug(uint debug
, u32
*p_dp_module
, u8
*p_dp_level
)
2333 *p_dp_level
= QED_LEVEL_NOTICE
;
2336 if (debug
& QED_LOG_VERBOSE_MASK
) {
2337 *p_dp_level
= QED_LEVEL_VERBOSE
;
2338 *p_dp_module
= (debug
& 0x3FFFFFFF);
2339 } else if (debug
& QED_LOG_INFO_MASK
) {
2340 *p_dp_level
= QED_LEVEL_INFO
;
2341 } else if (debug
& QED_LOG_NOTICE_MASK
) {
2342 *p_dp_level
= QED_LEVEL_NOTICE
;
2346 static void qede_free_fp_array(struct qede_dev
*edev
)
2348 if (edev
->fp_array
) {
2349 struct qede_fastpath
*fp
;
2353 fp
= &edev
->fp_array
[i
];
2359 kfree(edev
->fp_array
);
2364 static int qede_alloc_fp_array(struct qede_dev
*edev
)
2366 struct qede_fastpath
*fp
;
2369 edev
->fp_array
= kcalloc(QEDE_RSS_CNT(edev
),
2370 sizeof(*edev
->fp_array
), GFP_KERNEL
);
2371 if (!edev
->fp_array
) {
2372 DP_NOTICE(edev
, "fp array allocation failed\n");
2377 fp
= &edev
->fp_array
[i
];
2379 fp
->sb_info
= kcalloc(1, sizeof(*fp
->sb_info
), GFP_KERNEL
);
2381 DP_NOTICE(edev
, "sb info struct allocation failed\n");
2385 fp
->rxq
= kcalloc(1, sizeof(*fp
->rxq
), GFP_KERNEL
);
2387 DP_NOTICE(edev
, "RXQ struct allocation failed\n");
2391 fp
->txqs
= kcalloc(edev
->num_tc
, sizeof(*fp
->txqs
), GFP_KERNEL
);
2393 DP_NOTICE(edev
, "TXQ array allocation failed\n");
2400 qede_free_fp_array(edev
);
2404 static void qede_sp_task(struct work_struct
*work
)
2406 struct qede_dev
*edev
= container_of(work
, struct qede_dev
,
2408 struct qed_dev
*cdev
= edev
->cdev
;
2410 mutex_lock(&edev
->qede_lock
);
2412 if (edev
->state
== QEDE_STATE_OPEN
) {
2413 if (test_and_clear_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
))
2414 qede_config_rx_mode(edev
->ndev
);
2417 if (test_and_clear_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
)) {
2418 struct qed_tunn_params tunn_params
;
2420 memset(&tunn_params
, 0, sizeof(tunn_params
));
2421 tunn_params
.update_vxlan_port
= 1;
2422 tunn_params
.vxlan_port
= edev
->vxlan_dst_port
;
2423 qed_ops
->tunn_config(cdev
, &tunn_params
);
2426 if (test_and_clear_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
)) {
2427 struct qed_tunn_params tunn_params
;
2429 memset(&tunn_params
, 0, sizeof(tunn_params
));
2430 tunn_params
.update_geneve_port
= 1;
2431 tunn_params
.geneve_port
= edev
->geneve_dst_port
;
2432 qed_ops
->tunn_config(cdev
, &tunn_params
);
2435 mutex_unlock(&edev
->qede_lock
);
2438 static void qede_update_pf_params(struct qed_dev
*cdev
)
2440 struct qed_pf_params pf_params
;
2443 memset(&pf_params
, 0, sizeof(struct qed_pf_params
));
2444 pf_params
.eth_pf_params
.num_cons
= 128;
2445 qed_ops
->common
->update_pf_params(cdev
, &pf_params
);
2448 enum qede_probe_mode
{
2452 static int __qede_probe(struct pci_dev
*pdev
, u32 dp_module
, u8 dp_level
,
2453 bool is_vf
, enum qede_probe_mode mode
)
2455 struct qed_probe_params probe_params
;
2456 struct qed_slowpath_params params
;
2457 struct qed_dev_eth_info dev_info
;
2458 struct qede_dev
*edev
;
2459 struct qed_dev
*cdev
;
2462 if (unlikely(dp_level
& QED_LEVEL_INFO
))
2463 pr_notice("Starting qede probe\n");
2465 memset(&probe_params
, 0, sizeof(probe_params
));
2466 probe_params
.protocol
= QED_PROTOCOL_ETH
;
2467 probe_params
.dp_module
= dp_module
;
2468 probe_params
.dp_level
= dp_level
;
2469 probe_params
.is_vf
= is_vf
;
2470 cdev
= qed_ops
->common
->probe(pdev
, &probe_params
);
2476 qede_update_pf_params(cdev
);
2478 /* Start the Slowpath-process */
2479 memset(¶ms
, 0, sizeof(struct qed_slowpath_params
));
2480 params
.int_mode
= QED_INT_MODE_MSIX
;
2481 params
.drv_major
= QEDE_MAJOR_VERSION
;
2482 params
.drv_minor
= QEDE_MINOR_VERSION
;
2483 params
.drv_rev
= QEDE_REVISION_VERSION
;
2484 params
.drv_eng
= QEDE_ENGINEERING_VERSION
;
2485 strlcpy(params
.name
, "qede LAN", QED_DRV_VER_STR_SIZE
);
2486 rc
= qed_ops
->common
->slowpath_start(cdev
, ¶ms
);
2488 pr_notice("Cannot start slowpath\n");
2492 /* Learn information crucial for qede to progress */
2493 rc
= qed_ops
->fill_dev_info(cdev
, &dev_info
);
2497 edev
= qede_alloc_etherdev(cdev
, pdev
, &dev_info
, dp_module
,
2505 edev
->flags
|= QEDE_FLAG_IS_VF
;
2507 qede_init_ndev(edev
);
2509 rc
= register_netdev(edev
->ndev
);
2511 DP_NOTICE(edev
, "Cannot register net-device\n");
2515 edev
->ops
->common
->set_id(cdev
, edev
->ndev
->name
, DRV_MODULE_VERSION
);
2517 edev
->ops
->register_ops(cdev
, &qede_ll_ops
, edev
);
2520 qede_set_dcbnl_ops(edev
->ndev
);
2523 INIT_DELAYED_WORK(&edev
->sp_task
, qede_sp_task
);
2524 mutex_init(&edev
->qede_lock
);
2525 edev
->rx_copybreak
= QEDE_RX_HDR_SIZE
;
2527 DP_INFO(edev
, "Ending successfully qede probe\n");
2532 free_netdev(edev
->ndev
);
2534 qed_ops
->common
->slowpath_stop(cdev
);
2536 qed_ops
->common
->remove(cdev
);
2541 static int qede_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
2547 switch ((enum qede_pci_private
)id
->driver_data
) {
2548 case QEDE_PRIVATE_VF
:
2549 if (debug
& QED_LOG_VERBOSE_MASK
)
2550 dev_err(&pdev
->dev
, "Probing a VF\n");
2554 if (debug
& QED_LOG_VERBOSE_MASK
)
2555 dev_err(&pdev
->dev
, "Probing a PF\n");
2558 qede_config_debug(debug
, &dp_module
, &dp_level
);
2560 return __qede_probe(pdev
, dp_module
, dp_level
, is_vf
,
2564 enum qede_remove_mode
{
2568 static void __qede_remove(struct pci_dev
*pdev
, enum qede_remove_mode mode
)
2570 struct net_device
*ndev
= pci_get_drvdata(pdev
);
2571 struct qede_dev
*edev
= netdev_priv(ndev
);
2572 struct qed_dev
*cdev
= edev
->cdev
;
2574 DP_INFO(edev
, "Starting qede_remove\n");
2576 cancel_delayed_work_sync(&edev
->sp_task
);
2577 unregister_netdev(ndev
);
2579 edev
->ops
->common
->set_power_state(cdev
, PCI_D0
);
2581 pci_set_drvdata(pdev
, NULL
);
2585 /* Use global ops since we've freed edev */
2586 qed_ops
->common
->slowpath_stop(cdev
);
2587 qed_ops
->common
->remove(cdev
);
2589 pr_notice("Ending successfully qede_remove\n");
2592 static void qede_remove(struct pci_dev
*pdev
)
2594 __qede_remove(pdev
, QEDE_REMOVE_NORMAL
);
2597 /* -------------------------------------------------------------------------
2598 * START OF LOAD / UNLOAD
2599 * -------------------------------------------------------------------------
2602 static int qede_set_num_queues(struct qede_dev
*edev
)
2607 /* Setup queues according to possible resources*/
2609 rss_num
= edev
->req_rss
;
2611 rss_num
= netif_get_num_default_rss_queues() *
2612 edev
->dev_info
.common
.num_hwfns
;
2614 rss_num
= min_t(u16
, QEDE_MAX_RSS_CNT(edev
), rss_num
);
2616 rc
= edev
->ops
->common
->set_fp_int(edev
->cdev
, rss_num
);
2618 /* Managed to request interrupts for our queues */
2620 DP_INFO(edev
, "Managed %d [of %d] RSS queues\n",
2621 QEDE_RSS_CNT(edev
), rss_num
);
2627 static void qede_free_mem_sb(struct qede_dev
*edev
,
2628 struct qed_sb_info
*sb_info
)
2630 if (sb_info
->sb_virt
)
2631 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_info
->sb_virt
),
2632 (void *)sb_info
->sb_virt
, sb_info
->sb_phys
);
2635 /* This function allocates fast-path status block memory */
2636 static int qede_alloc_mem_sb(struct qede_dev
*edev
,
2637 struct qed_sb_info
*sb_info
,
2640 struct status_block
*sb_virt
;
2644 sb_virt
= dma_alloc_coherent(&edev
->pdev
->dev
,
2646 &sb_phys
, GFP_KERNEL
);
2648 DP_ERR(edev
, "Status block allocation failed\n");
2652 rc
= edev
->ops
->common
->sb_init(edev
->cdev
, sb_info
,
2653 sb_virt
, sb_phys
, sb_id
,
2654 QED_SB_TYPE_L2_QUEUE
);
2656 DP_ERR(edev
, "Status block initialization failed\n");
2657 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_virt
),
2665 static void qede_free_rx_buffers(struct qede_dev
*edev
,
2666 struct qede_rx_queue
*rxq
)
2670 for (i
= rxq
->sw_rx_cons
; i
!= rxq
->sw_rx_prod
; i
++) {
2671 struct sw_rx_data
*rx_buf
;
2674 rx_buf
= &rxq
->sw_rx_ring
[i
& NUM_RX_BDS_MAX
];
2675 data
= rx_buf
->data
;
2677 dma_unmap_page(&edev
->pdev
->dev
,
2679 PAGE_SIZE
, DMA_FROM_DEVICE
);
2681 rx_buf
->data
= NULL
;
2686 static void qede_free_sge_mem(struct qede_dev
*edev
,
2687 struct qede_rx_queue
*rxq
) {
2690 if (edev
->gro_disable
)
2693 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2694 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2695 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2697 if (replace_buf
->data
) {
2698 dma_unmap_page(&edev
->pdev
->dev
,
2699 replace_buf
->mapping
,
2700 PAGE_SIZE
, DMA_FROM_DEVICE
);
2701 __free_page(replace_buf
->data
);
2706 static void qede_free_mem_rxq(struct qede_dev
*edev
,
2707 struct qede_rx_queue
*rxq
)
2709 qede_free_sge_mem(edev
, rxq
);
2711 /* Free rx buffers */
2712 qede_free_rx_buffers(edev
, rxq
);
2714 /* Free the parallel SW ring */
2715 kfree(rxq
->sw_rx_ring
);
2717 /* Free the real RQ ring used by FW */
2718 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_bd_ring
);
2719 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_comp_ring
);
2722 static int qede_alloc_rx_buffer(struct qede_dev
*edev
,
2723 struct qede_rx_queue
*rxq
)
2725 struct sw_rx_data
*sw_rx_data
;
2726 struct eth_rx_bd
*rx_bd
;
2731 rx_buf_size
= rxq
->rx_buf_size
;
2733 data
= alloc_pages(GFP_ATOMIC
, 0);
2734 if (unlikely(!data
)) {
2735 DP_NOTICE(edev
, "Failed to allocate Rx data [page]\n");
2739 /* Map the entire page as it would be used
2740 * for multiple RX buffer segment size mapping.
2742 mapping
= dma_map_page(&edev
->pdev
->dev
, data
, 0,
2743 PAGE_SIZE
, DMA_FROM_DEVICE
);
2744 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2746 DP_NOTICE(edev
, "Failed to map Rx buffer\n");
2750 sw_rx_data
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
2751 sw_rx_data
->page_offset
= 0;
2752 sw_rx_data
->data
= data
;
2753 sw_rx_data
->mapping
= mapping
;
2755 /* Advance PROD and get BD pointer */
2756 rx_bd
= (struct eth_rx_bd
*)qed_chain_produce(&rxq
->rx_bd_ring
);
2758 rx_bd
->addr
.hi
= cpu_to_le32(upper_32_bits(mapping
));
2759 rx_bd
->addr
.lo
= cpu_to_le32(lower_32_bits(mapping
));
2766 static int qede_alloc_sge_mem(struct qede_dev
*edev
,
2767 struct qede_rx_queue
*rxq
)
2772 if (edev
->gro_disable
)
2775 if (edev
->ndev
->mtu
> PAGE_SIZE
) {
2776 edev
->gro_disable
= 1;
2780 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2781 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2782 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2784 replace_buf
->data
= alloc_pages(GFP_ATOMIC
, 0);
2785 if (unlikely(!replace_buf
->data
)) {
2787 "Failed to allocate TPA skb pool [replacement buffer]\n");
2791 mapping
= dma_map_page(&edev
->pdev
->dev
, replace_buf
->data
, 0,
2792 rxq
->rx_buf_size
, DMA_FROM_DEVICE
);
2793 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2795 "Failed to map TPA replacement buffer\n");
2799 replace_buf
->mapping
= mapping
;
2800 tpa_info
->replace_buf
.page_offset
= 0;
2802 tpa_info
->replace_buf_mapping
= mapping
;
2803 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
2808 qede_free_sge_mem(edev
, rxq
);
2809 edev
->gro_disable
= 1;
2813 /* This function allocates all memory needed per Rx queue */
2814 static int qede_alloc_mem_rxq(struct qede_dev
*edev
,
2815 struct qede_rx_queue
*rxq
)
2819 rxq
->num_rx_buffers
= edev
->q_num_rx_buffers
;
2821 rxq
->rx_buf_size
= NET_IP_ALIGN
+ ETH_OVERHEAD
+
2823 if (rxq
->rx_buf_size
> PAGE_SIZE
)
2824 rxq
->rx_buf_size
= PAGE_SIZE
;
2826 /* Segment size to spilt a page in multiple equal parts */
2827 rxq
->rx_buf_seg_size
= roundup_pow_of_two(rxq
->rx_buf_size
);
2829 /* Allocate the parallel driver ring for Rx buffers */
2830 size
= sizeof(*rxq
->sw_rx_ring
) * RX_RING_SIZE
;
2831 rxq
->sw_rx_ring
= kzalloc(size
, GFP_KERNEL
);
2832 if (!rxq
->sw_rx_ring
) {
2833 DP_ERR(edev
, "Rx buffers ring allocation failed\n");
2838 /* Allocate FW Rx ring */
2839 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2840 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2841 QED_CHAIN_MODE_NEXT_PTR
,
2842 QED_CHAIN_CNT_TYPE_U16
,
2844 sizeof(struct eth_rx_bd
),
2850 /* Allocate FW completion ring */
2851 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2852 QED_CHAIN_USE_TO_CONSUME
,
2854 QED_CHAIN_CNT_TYPE_U16
,
2856 sizeof(union eth_rx_cqe
),
2857 &rxq
->rx_comp_ring
);
2861 /* Allocate buffers for the Rx ring */
2862 for (i
= 0; i
< rxq
->num_rx_buffers
; i
++) {
2863 rc
= qede_alloc_rx_buffer(edev
, rxq
);
2866 "Rx buffers allocation failed at index %d\n", i
);
2871 rc
= qede_alloc_sge_mem(edev
, rxq
);
2876 static void qede_free_mem_txq(struct qede_dev
*edev
,
2877 struct qede_tx_queue
*txq
)
2879 /* Free the parallel SW ring */
2880 kfree(txq
->sw_tx_ring
);
2882 /* Free the real RQ ring used by FW */
2883 edev
->ops
->common
->chain_free(edev
->cdev
, &txq
->tx_pbl
);
2886 /* This function allocates all memory needed per Tx queue */
2887 static int qede_alloc_mem_txq(struct qede_dev
*edev
,
2888 struct qede_tx_queue
*txq
)
2891 union eth_tx_bd_types
*p_virt
;
2893 txq
->num_tx_buffers
= edev
->q_num_tx_buffers
;
2895 /* Allocate the parallel driver ring for Tx buffers */
2896 size
= sizeof(*txq
->sw_tx_ring
) * NUM_TX_BDS_MAX
;
2897 txq
->sw_tx_ring
= kzalloc(size
, GFP_KERNEL
);
2898 if (!txq
->sw_tx_ring
) {
2899 DP_NOTICE(edev
, "Tx buffers ring allocation failed\n");
2903 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2904 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2906 QED_CHAIN_CNT_TYPE_U16
,
2908 sizeof(*p_virt
), &txq
->tx_pbl
);
2915 qede_free_mem_txq(edev
, txq
);
2919 /* This function frees all memory of a single fp */
2920 static void qede_free_mem_fp(struct qede_dev
*edev
,
2921 struct qede_fastpath
*fp
)
2925 qede_free_mem_sb(edev
, fp
->sb_info
);
2927 qede_free_mem_rxq(edev
, fp
->rxq
);
2929 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
2930 qede_free_mem_txq(edev
, &fp
->txqs
[tc
]);
2933 /* This function allocates all memory needed for a single fp (i.e. an entity
2934 * which contains status block, one rx queue and multiple per-TC tx queues.
2936 static int qede_alloc_mem_fp(struct qede_dev
*edev
,
2937 struct qede_fastpath
*fp
)
2941 rc
= qede_alloc_mem_sb(edev
, fp
->sb_info
, fp
->rss_id
);
2945 rc
= qede_alloc_mem_rxq(edev
, fp
->rxq
);
2949 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2950 rc
= qede_alloc_mem_txq(edev
, &fp
->txqs
[tc
]);
2960 static void qede_free_mem_load(struct qede_dev
*edev
)
2965 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
2967 qede_free_mem_fp(edev
, fp
);
2971 /* This function allocates all qede memory at NIC load. */
2972 static int qede_alloc_mem_load(struct qede_dev
*edev
)
2976 for (rss_id
= 0; rss_id
< QEDE_RSS_CNT(edev
); rss_id
++) {
2977 struct qede_fastpath
*fp
= &edev
->fp_array
[rss_id
];
2979 rc
= qede_alloc_mem_fp(edev
, fp
);
2982 "Failed to allocate memory for fastpath - rss id = %d\n",
2984 qede_free_mem_load(edev
);
2992 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
2993 static void qede_init_fp(struct qede_dev
*edev
)
2995 int rss_id
, txq_index
, tc
;
2996 struct qede_fastpath
*fp
;
2998 for_each_rss(rss_id
) {
2999 fp
= &edev
->fp_array
[rss_id
];
3002 fp
->rss_id
= rss_id
;
3004 memset((void *)&fp
->napi
, 0, sizeof(fp
->napi
));
3006 memset((void *)fp
->sb_info
, 0, sizeof(*fp
->sb_info
));
3008 memset((void *)fp
->rxq
, 0, sizeof(*fp
->rxq
));
3009 fp
->rxq
->rxq_id
= rss_id
;
3011 memset((void *)fp
->txqs
, 0, (edev
->num_tc
* sizeof(*fp
->txqs
)));
3012 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3013 txq_index
= tc
* QEDE_RSS_CNT(edev
) + rss_id
;
3014 fp
->txqs
[tc
].index
= txq_index
;
3017 snprintf(fp
->name
, sizeof(fp
->name
), "%s-fp-%d",
3018 edev
->ndev
->name
, rss_id
);
3021 edev
->gro_disable
= !(edev
->ndev
->features
& NETIF_F_GRO
);
3024 static int qede_set_real_num_queues(struct qede_dev
*edev
)
3028 rc
= netif_set_real_num_tx_queues(edev
->ndev
, QEDE_TSS_CNT(edev
));
3030 DP_NOTICE(edev
, "Failed to set real number of Tx queues\n");
3033 rc
= netif_set_real_num_rx_queues(edev
->ndev
, QEDE_RSS_CNT(edev
));
3035 DP_NOTICE(edev
, "Failed to set real number of Rx queues\n");
3042 static void qede_napi_disable_remove(struct qede_dev
*edev
)
3047 napi_disable(&edev
->fp_array
[i
].napi
);
3049 netif_napi_del(&edev
->fp_array
[i
].napi
);
3053 static void qede_napi_add_enable(struct qede_dev
*edev
)
3057 /* Add NAPI objects */
3059 netif_napi_add(edev
->ndev
, &edev
->fp_array
[i
].napi
,
3060 qede_poll
, NAPI_POLL_WEIGHT
);
3061 napi_enable(&edev
->fp_array
[i
].napi
);
3065 static void qede_sync_free_irqs(struct qede_dev
*edev
)
3069 for (i
= 0; i
< edev
->int_info
.used_cnt
; i
++) {
3070 if (edev
->int_info
.msix_cnt
) {
3071 synchronize_irq(edev
->int_info
.msix
[i
].vector
);
3072 free_irq(edev
->int_info
.msix
[i
].vector
,
3073 &edev
->fp_array
[i
]);
3075 edev
->ops
->common
->simd_handler_clean(edev
->cdev
, i
);
3079 edev
->int_info
.used_cnt
= 0;
3082 static int qede_req_msix_irqs(struct qede_dev
*edev
)
3086 /* Sanitize number of interrupts == number of prepared RSS queues */
3087 if (QEDE_RSS_CNT(edev
) > edev
->int_info
.msix_cnt
) {
3089 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
3090 QEDE_RSS_CNT(edev
), edev
->int_info
.msix_cnt
);
3094 for (i
= 0; i
< QEDE_RSS_CNT(edev
); i
++) {
3095 rc
= request_irq(edev
->int_info
.msix
[i
].vector
,
3096 qede_msix_fp_int
, 0, edev
->fp_array
[i
].name
,
3097 &edev
->fp_array
[i
]);
3099 DP_ERR(edev
, "Request fp %d irq failed\n", i
);
3100 qede_sync_free_irqs(edev
);
3103 DP_VERBOSE(edev
, NETIF_MSG_INTR
,
3104 "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
3105 edev
->fp_array
[i
].name
, i
,
3106 &edev
->fp_array
[i
]);
3107 edev
->int_info
.used_cnt
++;
3113 static void qede_simd_fp_handler(void *cookie
)
3115 struct qede_fastpath
*fp
= (struct qede_fastpath
*)cookie
;
3117 napi_schedule_irqoff(&fp
->napi
);
3120 static int qede_setup_irqs(struct qede_dev
*edev
)
3124 /* Learn Interrupt configuration */
3125 rc
= edev
->ops
->common
->get_fp_int(edev
->cdev
, &edev
->int_info
);
3129 if (edev
->int_info
.msix_cnt
) {
3130 rc
= qede_req_msix_irqs(edev
);
3133 edev
->ndev
->irq
= edev
->int_info
.msix
[0].vector
;
3135 const struct qed_common_ops
*ops
;
3137 /* qed should learn receive the RSS ids and callbacks */
3138 ops
= edev
->ops
->common
;
3139 for (i
= 0; i
< QEDE_RSS_CNT(edev
); i
++)
3140 ops
->simd_handler_config(edev
->cdev
,
3141 &edev
->fp_array
[i
], i
,
3142 qede_simd_fp_handler
);
3143 edev
->int_info
.used_cnt
= QEDE_RSS_CNT(edev
);
3148 static int qede_drain_txq(struct qede_dev
*edev
,
3149 struct qede_tx_queue
*txq
,
3154 while (txq
->sw_tx_cons
!= txq
->sw_tx_prod
) {
3158 "Tx queue[%d] is stuck, requesting MCP to drain\n",
3160 rc
= edev
->ops
->common
->drain(edev
->cdev
);
3163 return qede_drain_txq(edev
, txq
, false);
3166 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
3167 txq
->index
, txq
->sw_tx_prod
,
3172 usleep_range(1000, 2000);
3176 /* FW finished processing, wait for HW to transmit all tx packets */
3177 usleep_range(1000, 2000);
3182 static int qede_stop_queues(struct qede_dev
*edev
)
3184 struct qed_update_vport_params vport_update_params
;
3185 struct qed_dev
*cdev
= edev
->cdev
;
3188 /* Disable the vport */
3189 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
3190 vport_update_params
.vport_id
= 0;
3191 vport_update_params
.update_vport_active_flg
= 1;
3192 vport_update_params
.vport_active_flg
= 0;
3193 vport_update_params
.update_rss_flg
= 0;
3195 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
3197 DP_ERR(edev
, "Failed to update vport\n");
3201 /* Flush Tx queues. If needed, request drain from MCP */
3203 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
3205 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3206 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
3208 rc
= qede_drain_txq(edev
, txq
, true);
3214 /* Stop all Queues in reverse order*/
3215 for (i
= QEDE_RSS_CNT(edev
) - 1; i
>= 0; i
--) {
3216 struct qed_stop_rxq_params rx_params
;
3218 /* Stop the Tx Queue(s)*/
3219 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3220 struct qed_stop_txq_params tx_params
;
3222 tx_params
.rss_id
= i
;
3223 tx_params
.tx_queue_id
= tc
* QEDE_RSS_CNT(edev
) + i
;
3224 rc
= edev
->ops
->q_tx_stop(cdev
, &tx_params
);
3226 DP_ERR(edev
, "Failed to stop TXQ #%d\n",
3227 tx_params
.tx_queue_id
);
3232 /* Stop the Rx Queue*/
3233 memset(&rx_params
, 0, sizeof(rx_params
));
3234 rx_params
.rss_id
= i
;
3235 rx_params
.rx_queue_id
= i
;
3237 rc
= edev
->ops
->q_rx_stop(cdev
, &rx_params
);
3239 DP_ERR(edev
, "Failed to stop RXQ #%d\n", i
);
3244 /* Stop the vport */
3245 rc
= edev
->ops
->vport_stop(cdev
, 0);
3247 DP_ERR(edev
, "Failed to stop VPORT\n");
3252 static int qede_start_queues(struct qede_dev
*edev
, bool clear_stats
)
3255 int vlan_removal_en
= 1;
3256 struct qed_dev
*cdev
= edev
->cdev
;
3257 struct qed_update_vport_params vport_update_params
;
3258 struct qed_queue_start_common_params q_params
;
3259 struct qed_dev_info
*qed_info
= &edev
->dev_info
.common
;
3260 struct qed_start_vport_params start
= {0};
3261 bool reset_rss_indir
= false;
3263 if (!edev
->num_rss
) {
3265 "Cannot update V-VPORT as active as there are no Rx queues\n");
3269 start
.gro_enable
= !edev
->gro_disable
;
3270 start
.mtu
= edev
->ndev
->mtu
;
3272 start
.drop_ttl0
= true;
3273 start
.remove_inner_vlan
= vlan_removal_en
;
3275 rc
= edev
->ops
->vport_start(cdev
, &start
);
3278 DP_ERR(edev
, "Start V-PORT failed %d\n", rc
);
3282 DP_VERBOSE(edev
, NETIF_MSG_IFUP
,
3283 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
3284 start
.vport_id
, edev
->ndev
->mtu
+ 0xe, vlan_removal_en
);
3287 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
3288 dma_addr_t phys_table
= fp
->rxq
->rx_comp_ring
.pbl
.p_phys_table
;
3290 memset(&q_params
, 0, sizeof(q_params
));
3291 q_params
.rss_id
= i
;
3292 q_params
.queue_id
= i
;
3293 q_params
.vport_id
= 0;
3294 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
3295 q_params
.sb_idx
= RX_PI
;
3297 rc
= edev
->ops
->q_rx_start(cdev
, &q_params
,
3298 fp
->rxq
->rx_buf_size
,
3299 fp
->rxq
->rx_bd_ring
.p_phys_addr
,
3301 fp
->rxq
->rx_comp_ring
.page_cnt
,
3302 &fp
->rxq
->hw_rxq_prod_addr
);
3304 DP_ERR(edev
, "Start RXQ #%d failed %d\n", i
, rc
);
3308 fp
->rxq
->hw_cons_ptr
= &fp
->sb_info
->sb_virt
->pi_array
[RX_PI
];
3310 qede_update_rx_prod(edev
, fp
->rxq
);
3312 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3313 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
3314 int txq_index
= tc
* QEDE_RSS_CNT(edev
) + i
;
3316 memset(&q_params
, 0, sizeof(q_params
));
3317 q_params
.rss_id
= i
;
3318 q_params
.queue_id
= txq_index
;
3319 q_params
.vport_id
= 0;
3320 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
3321 q_params
.sb_idx
= TX_PI(tc
);
3323 rc
= edev
->ops
->q_tx_start(cdev
, &q_params
,
3324 txq
->tx_pbl
.pbl
.p_phys_table
,
3325 txq
->tx_pbl
.page_cnt
,
3326 &txq
->doorbell_addr
);
3328 DP_ERR(edev
, "Start TXQ #%d failed %d\n",
3334 &fp
->sb_info
->sb_virt
->pi_array
[TX_PI(tc
)];
3335 SET_FIELD(txq
->tx_db
.data
.params
,
3336 ETH_DB_DATA_DEST
, DB_DEST_XCM
);
3337 SET_FIELD(txq
->tx_db
.data
.params
, ETH_DB_DATA_AGG_CMD
,
3339 SET_FIELD(txq
->tx_db
.data
.params
,
3340 ETH_DB_DATA_AGG_VAL_SEL
,
3341 DQ_XCM_ETH_TX_BD_PROD_CMD
);
3343 txq
->tx_db
.data
.agg_flags
= DQ_XCM_ETH_DQ_CF_CMD
;
3347 /* Prepare and send the vport enable */
3348 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
3349 vport_update_params
.vport_id
= start
.vport_id
;
3350 vport_update_params
.update_vport_active_flg
= 1;
3351 vport_update_params
.vport_active_flg
= 1;
3353 if ((qed_info
->mf_mode
== QED_MF_NPAR
|| pci_num_vf(edev
->pdev
)) &&
3354 qed_info
->tx_switching
) {
3355 vport_update_params
.update_tx_switching_flg
= 1;
3356 vport_update_params
.tx_switching_flg
= 1;
3359 /* Fill struct with RSS params */
3360 if (QEDE_RSS_CNT(edev
) > 1) {
3361 vport_update_params
.update_rss_flg
= 1;
3363 /* Need to validate current RSS config uses valid entries */
3364 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3365 if (edev
->rss_params
.rss_ind_table
[i
] >=
3367 reset_rss_indir
= true;
3372 if (!(edev
->rss_params_inited
& QEDE_RSS_INDIR_INITED
) ||
3376 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3379 val
= QEDE_RSS_CNT(edev
);
3380 indir_val
= ethtool_rxfh_indir_default(i
, val
);
3381 edev
->rss_params
.rss_ind_table
[i
] = indir_val
;
3383 edev
->rss_params_inited
|= QEDE_RSS_INDIR_INITED
;
3386 if (!(edev
->rss_params_inited
& QEDE_RSS_KEY_INITED
)) {
3387 netdev_rss_key_fill(edev
->rss_params
.rss_key
,
3388 sizeof(edev
->rss_params
.rss_key
));
3389 edev
->rss_params_inited
|= QEDE_RSS_KEY_INITED
;
3392 if (!(edev
->rss_params_inited
& QEDE_RSS_CAPS_INITED
)) {
3393 edev
->rss_params
.rss_caps
= QED_RSS_IPV4
|
3397 edev
->rss_params_inited
|= QEDE_RSS_CAPS_INITED
;
3400 memcpy(&vport_update_params
.rss_params
, &edev
->rss_params
,
3401 sizeof(vport_update_params
.rss_params
));
3403 memset(&vport_update_params
.rss_params
, 0,
3404 sizeof(vport_update_params
.rss_params
));
3407 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
3409 DP_ERR(edev
, "Update V-PORT failed %d\n", rc
);
3416 static int qede_set_mcast_rx_mac(struct qede_dev
*edev
,
3417 enum qed_filter_xcast_params_type opcode
,
3418 unsigned char *mac
, int num_macs
)
3420 struct qed_filter_params filter_cmd
;
3423 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
3424 filter_cmd
.type
= QED_FILTER_TYPE_MCAST
;
3425 filter_cmd
.filter
.mcast
.type
= opcode
;
3426 filter_cmd
.filter
.mcast
.num
= num_macs
;
3428 for (i
= 0; i
< num_macs
; i
++, mac
+= ETH_ALEN
)
3429 ether_addr_copy(filter_cmd
.filter
.mcast
.mac
[i
], mac
);
3431 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
3434 enum qede_unload_mode
{
3438 static void qede_unload(struct qede_dev
*edev
, enum qede_unload_mode mode
)
3440 struct qed_link_params link_params
;
3443 DP_INFO(edev
, "Starting qede unload\n");
3445 mutex_lock(&edev
->qede_lock
);
3446 edev
->state
= QEDE_STATE_CLOSED
;
3449 netif_tx_disable(edev
->ndev
);
3450 netif_carrier_off(edev
->ndev
);
3452 /* Reset the link */
3453 memset(&link_params
, 0, sizeof(link_params
));
3454 link_params
.link_up
= false;
3455 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3456 rc
= qede_stop_queues(edev
);
3458 qede_sync_free_irqs(edev
);
3462 DP_INFO(edev
, "Stopped Queues\n");
3464 qede_vlan_mark_nonconfigured(edev
);
3465 edev
->ops
->fastpath_stop(edev
->cdev
);
3467 /* Release the interrupts */
3468 qede_sync_free_irqs(edev
);
3469 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3471 qede_napi_disable_remove(edev
);
3473 qede_free_mem_load(edev
);
3474 qede_free_fp_array(edev
);
3477 mutex_unlock(&edev
->qede_lock
);
3478 DP_INFO(edev
, "Ending qede unload\n");
3481 enum qede_load_mode
{
3486 static int qede_load(struct qede_dev
*edev
, enum qede_load_mode mode
)
3488 struct qed_link_params link_params
;
3489 struct qed_link_output link_output
;
3492 DP_INFO(edev
, "Starting qede load\n");
3494 rc
= qede_set_num_queues(edev
);
3498 rc
= qede_alloc_fp_array(edev
);
3504 rc
= qede_alloc_mem_load(edev
);
3507 DP_INFO(edev
, "Allocated %d RSS queues on %d TC/s\n",
3508 QEDE_RSS_CNT(edev
), edev
->num_tc
);
3510 rc
= qede_set_real_num_queues(edev
);
3514 qede_napi_add_enable(edev
);
3515 DP_INFO(edev
, "Napi added and enabled\n");
3517 rc
= qede_setup_irqs(edev
);
3520 DP_INFO(edev
, "Setup IRQs succeeded\n");
3522 rc
= qede_start_queues(edev
, mode
!= QEDE_LOAD_RELOAD
);
3525 DP_INFO(edev
, "Start VPORT, RXQ and TXQ succeeded\n");
3527 /* Add primary mac and set Rx filters */
3528 ether_addr_copy(edev
->primary_mac
, edev
->ndev
->dev_addr
);
3530 mutex_lock(&edev
->qede_lock
);
3531 edev
->state
= QEDE_STATE_OPEN
;
3532 mutex_unlock(&edev
->qede_lock
);
3534 /* Program un-configured VLANs */
3535 qede_configure_vlan_filters(edev
);
3537 /* Ask for link-up using current configuration */
3538 memset(&link_params
, 0, sizeof(link_params
));
3539 link_params
.link_up
= true;
3540 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3542 /* Query whether link is already-up */
3543 memset(&link_output
, 0, sizeof(link_output
));
3544 edev
->ops
->common
->get_link(edev
->cdev
, &link_output
);
3545 qede_link_update(edev
, &link_output
);
3547 DP_INFO(edev
, "Ending successfully qede load\n");
3552 qede_sync_free_irqs(edev
);
3553 memset(&edev
->int_info
.msix_cnt
, 0, sizeof(struct qed_int_info
));
3555 qede_napi_disable_remove(edev
);
3557 qede_free_mem_load(edev
);
3559 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3560 qede_free_fp_array(edev
);
3566 void qede_reload(struct qede_dev
*edev
,
3567 void (*func
)(struct qede_dev
*, union qede_reload_args
*),
3568 union qede_reload_args
*args
)
3570 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3571 /* Call function handler to update parameters
3572 * needed for function load.
3577 qede_load(edev
, QEDE_LOAD_RELOAD
);
3579 mutex_lock(&edev
->qede_lock
);
3580 qede_config_rx_mode(edev
->ndev
);
3581 mutex_unlock(&edev
->qede_lock
);
3584 /* called with rtnl_lock */
3585 static int qede_open(struct net_device
*ndev
)
3587 struct qede_dev
*edev
= netdev_priv(ndev
);
3590 netif_carrier_off(ndev
);
3592 edev
->ops
->common
->set_power_state(edev
->cdev
, PCI_D0
);
3594 rc
= qede_load(edev
, QEDE_LOAD_NORMAL
);
3599 udp_tunnel_get_rx_info(ndev
);
3604 static int qede_close(struct net_device
*ndev
)
3606 struct qede_dev
*edev
= netdev_priv(ndev
);
3608 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3613 static void qede_link_update(void *dev
, struct qed_link_output
*link
)
3615 struct qede_dev
*edev
= dev
;
3617 if (!netif_running(edev
->ndev
)) {
3618 DP_VERBOSE(edev
, NETIF_MSG_LINK
, "Interface is not running\n");
3622 if (link
->link_up
) {
3623 if (!netif_carrier_ok(edev
->ndev
)) {
3624 DP_NOTICE(edev
, "Link is up\n");
3625 netif_tx_start_all_queues(edev
->ndev
);
3626 netif_carrier_on(edev
->ndev
);
3629 if (netif_carrier_ok(edev
->ndev
)) {
3630 DP_NOTICE(edev
, "Link is down\n");
3631 netif_tx_disable(edev
->ndev
);
3632 netif_carrier_off(edev
->ndev
);
3637 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
)
3639 struct qede_dev
*edev
= netdev_priv(ndev
);
3640 struct sockaddr
*addr
= p
;
3643 ASSERT_RTNL(); /* @@@TBD To be removed */
3645 DP_INFO(edev
, "Set_mac_addr called\n");
3647 if (!is_valid_ether_addr(addr
->sa_data
)) {
3648 DP_NOTICE(edev
, "The MAC address is not valid\n");
3652 if (!edev
->ops
->check_mac(edev
->cdev
, addr
->sa_data
)) {
3653 DP_NOTICE(edev
, "qed prevents setting MAC\n");
3657 ether_addr_copy(ndev
->dev_addr
, addr
->sa_data
);
3659 if (!netif_running(ndev
)) {
3660 DP_NOTICE(edev
, "The device is currently down\n");
3664 /* Remove the previous primary mac */
3665 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3670 /* Add MAC filter according to the new unicast HW MAC address */
3671 ether_addr_copy(edev
->primary_mac
, ndev
->dev_addr
);
3672 return qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3677 qede_configure_mcast_filtering(struct net_device
*ndev
,
3678 enum qed_filter_rx_mode_type
*accept_flags
)
3680 struct qede_dev
*edev
= netdev_priv(ndev
);
3681 unsigned char *mc_macs
, *temp
;
3682 struct netdev_hw_addr
*ha
;
3683 int rc
= 0, mc_count
;
3686 size
= 64 * ETH_ALEN
;
3688 mc_macs
= kzalloc(size
, GFP_KERNEL
);
3691 "Failed to allocate memory for multicast MACs\n");
3698 /* Remove all previously configured MAC filters */
3699 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3704 netif_addr_lock_bh(ndev
);
3706 mc_count
= netdev_mc_count(ndev
);
3707 if (mc_count
< 64) {
3708 netdev_for_each_mc_addr(ha
, ndev
) {
3709 ether_addr_copy(temp
, ha
->addr
);
3714 netif_addr_unlock_bh(ndev
);
3716 /* Check for all multicast @@@TBD resource allocation */
3717 if ((ndev
->flags
& IFF_ALLMULTI
) ||
3719 if (*accept_flags
== QED_FILTER_RX_MODE_TYPE_REGULAR
)
3720 *accept_flags
= QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC
;
3722 /* Add all multicast MAC filters */
3723 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3732 static void qede_set_rx_mode(struct net_device
*ndev
)
3734 struct qede_dev
*edev
= netdev_priv(ndev
);
3736 DP_INFO(edev
, "qede_set_rx_mode called\n");
3738 if (edev
->state
!= QEDE_STATE_OPEN
) {
3740 "qede_set_rx_mode called while interface is down\n");
3742 set_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
);
3743 schedule_delayed_work(&edev
->sp_task
, 0);
3747 /* Must be called with qede_lock held */
3748 static void qede_config_rx_mode(struct net_device
*ndev
)
3750 enum qed_filter_rx_mode_type accept_flags
= QED_FILTER_TYPE_UCAST
;
3751 struct qede_dev
*edev
= netdev_priv(ndev
);
3752 struct qed_filter_params rx_mode
;
3753 unsigned char *uc_macs
, *temp
;
3754 struct netdev_hw_addr
*ha
;
3758 netif_addr_lock_bh(ndev
);
3760 uc_count
= netdev_uc_count(ndev
);
3761 size
= uc_count
* ETH_ALEN
;
3763 uc_macs
= kzalloc(size
, GFP_ATOMIC
);
3765 DP_NOTICE(edev
, "Failed to allocate memory for unicast MACs\n");
3766 netif_addr_unlock_bh(ndev
);
3771 netdev_for_each_uc_addr(ha
, ndev
) {
3772 ether_addr_copy(temp
, ha
->addr
);
3776 netif_addr_unlock_bh(ndev
);
3778 /* Configure the struct for the Rx mode */
3779 memset(&rx_mode
, 0, sizeof(struct qed_filter_params
));
3780 rx_mode
.type
= QED_FILTER_TYPE_RX_MODE
;
3782 /* Remove all previous unicast secondary macs and multicast macs
3783 * (configrue / leave the primary mac)
3785 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_REPLACE
,
3790 /* Check for promiscuous */
3791 if ((ndev
->flags
& IFF_PROMISC
) ||
3792 (uc_count
> 15)) { /* @@@TBD resource allocation - 1 */
3793 accept_flags
= QED_FILTER_RX_MODE_TYPE_PROMISC
;
3795 /* Add MAC filters according to the unicast secondary macs */
3799 for (i
= 0; i
< uc_count
; i
++) {
3800 rc
= qede_set_ucast_rx_mac(edev
,
3801 QED_FILTER_XCAST_TYPE_ADD
,
3809 rc
= qede_configure_mcast_filtering(ndev
, &accept_flags
);
3814 /* take care of VLAN mode */
3815 if (ndev
->flags
& IFF_PROMISC
) {
3816 qede_config_accept_any_vlan(edev
, true);
3817 } else if (!edev
->non_configured_vlans
) {
3818 /* It's possible that accept_any_vlan mode is set due to a
3819 * previous setting of IFF_PROMISC. If vlan credits are
3820 * sufficient, disable accept_any_vlan.
3822 qede_config_accept_any_vlan(edev
, false);
3825 rx_mode
.filter
.accept_flags
= accept_flags
;
3826 edev
->ops
->filter_config(edev
->cdev
, &rx_mode
);