1 /* QLogic qede NIC Driver
2 * Copyright (c) 2015 QLogic Corporation
4 * This software is available under the terms of the GNU General Public License
5 * (GPL) Version 2, available from the file COPYING in the main directory of
9 #include <linux/module.h>
10 #include <linux/pci.h>
11 #include <linux/version.h>
12 #include <linux/device.h>
13 #include <linux/netdevice.h>
14 #include <linux/etherdevice.h>
15 #include <linux/skbuff.h>
16 #include <linux/errno.h>
17 #include <linux/list.h>
18 #include <linux/string.h>
19 #include <linux/dma-mapping.h>
20 #include <linux/interrupt.h>
21 #include <asm/byteorder.h>
22 #include <asm/param.h>
24 #include <linux/netdev_features.h>
25 #include <linux/udp.h>
26 #include <linux/tcp.h>
27 #ifdef CONFIG_QEDE_VXLAN
28 #include <net/vxlan.h>
30 #ifdef CONFIG_QEDE_GENEVE
31 #include <net/geneve.h>
36 #include <linux/if_ether.h>
37 #include <linux/if_vlan.h>
38 #include <linux/pkt_sched.h>
39 #include <linux/ethtool.h>
41 #include <linux/random.h>
42 #include <net/ip6_checksum.h>
43 #include <linux/bitops.h>
47 static char version
[] =
48 "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION
"\n";
50 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver");
51 MODULE_LICENSE("GPL");
52 MODULE_VERSION(DRV_MODULE_VERSION
);
55 module_param(debug
, uint
, 0);
56 MODULE_PARM_DESC(debug
, " Default debug msglevel");
58 static const struct qed_eth_ops
*qed_ops
;
60 #define CHIP_NUM_57980S_40 0x1634
61 #define CHIP_NUM_57980S_10 0x1666
62 #define CHIP_NUM_57980S_MF 0x1636
63 #define CHIP_NUM_57980S_100 0x1644
64 #define CHIP_NUM_57980S_50 0x1654
65 #define CHIP_NUM_57980S_25 0x1656
66 #define CHIP_NUM_57980S_IOV 0x1664
68 #ifndef PCI_DEVICE_ID_NX2_57980E
69 #define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40
70 #define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10
71 #define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF
72 #define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100
73 #define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50
74 #define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25
75 #define PCI_DEVICE_ID_57980S_IOV CHIP_NUM_57980S_IOV
78 enum qede_pci_private
{
83 static const struct pci_device_id qede_pci_tbl
[] = {
84 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_40
), QEDE_PRIVATE_PF
},
85 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_10
), QEDE_PRIVATE_PF
},
86 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_MF
), QEDE_PRIVATE_PF
},
87 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_100
), QEDE_PRIVATE_PF
},
88 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_50
), QEDE_PRIVATE_PF
},
89 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_25
), QEDE_PRIVATE_PF
},
90 #ifdef CONFIG_QED_SRIOV
91 {PCI_VDEVICE(QLOGIC
, PCI_DEVICE_ID_57980S_IOV
), QEDE_PRIVATE_VF
},
96 MODULE_DEVICE_TABLE(pci
, qede_pci_tbl
);
98 static int qede_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
);
100 #define TX_TIMEOUT (5 * HZ)
102 static void qede_remove(struct pci_dev
*pdev
);
103 static int qede_alloc_rx_buffer(struct qede_dev
*edev
,
104 struct qede_rx_queue
*rxq
);
105 static void qede_link_update(void *dev
, struct qed_link_output
*link
);
107 #ifdef CONFIG_QED_SRIOV
108 static int qede_set_vf_vlan(struct net_device
*ndev
, int vf
, u16 vlan
, u8 qos
)
110 struct qede_dev
*edev
= netdev_priv(ndev
);
113 DP_NOTICE(edev
, "Illegal vlan value %d\n", vlan
);
117 DP_VERBOSE(edev
, QED_MSG_IOV
, "Setting Vlan 0x%04x to VF [%d]\n",
120 return edev
->ops
->iov
->set_vlan(edev
->cdev
, vlan
, vf
);
123 static int qede_set_vf_mac(struct net_device
*ndev
, int vfidx
, u8
*mac
)
125 struct qede_dev
*edev
= netdev_priv(ndev
);
127 DP_VERBOSE(edev
, QED_MSG_IOV
,
128 "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n",
129 mac
[0], mac
[1], mac
[2], mac
[3], mac
[4], mac
[5], vfidx
);
131 if (!is_valid_ether_addr(mac
)) {
132 DP_VERBOSE(edev
, QED_MSG_IOV
, "MAC address isn't valid\n");
136 return edev
->ops
->iov
->set_mac(edev
->cdev
, mac
, vfidx
);
139 static int qede_sriov_configure(struct pci_dev
*pdev
, int num_vfs_param
)
141 struct qede_dev
*edev
= netdev_priv(pci_get_drvdata(pdev
));
142 struct qed_dev_info
*qed_info
= &edev
->dev_info
.common
;
145 DP_VERBOSE(edev
, QED_MSG_IOV
, "Requested %d VFs\n", num_vfs_param
);
147 rc
= edev
->ops
->iov
->configure(edev
->cdev
, num_vfs_param
);
149 /* Enable/Disable Tx switching for PF */
150 if ((rc
== num_vfs_param
) && netif_running(edev
->ndev
) &&
151 qed_info
->mf_mode
!= QED_MF_NPAR
&& qed_info
->tx_switching
) {
152 struct qed_update_vport_params params
;
154 memset(¶ms
, 0, sizeof(params
));
156 params
.update_tx_switching_flg
= 1;
157 params
.tx_switching_flg
= num_vfs_param
? 1 : 0;
158 edev
->ops
->vport_update(edev
->cdev
, ¶ms
);
165 static struct pci_driver qede_pci_driver
= {
167 .id_table
= qede_pci_tbl
,
169 .remove
= qede_remove
,
170 #ifdef CONFIG_QED_SRIOV
171 .sriov_configure
= qede_sriov_configure
,
175 static void qede_force_mac(void *dev
, u8
*mac
)
177 struct qede_dev
*edev
= dev
;
179 ether_addr_copy(edev
->ndev
->dev_addr
, mac
);
180 ether_addr_copy(edev
->primary_mac
, mac
);
183 static struct qed_eth_cb_ops qede_ll_ops
= {
185 .link_update
= qede_link_update
,
187 .force_mac
= qede_force_mac
,
190 static int qede_netdev_event(struct notifier_block
*this, unsigned long event
,
193 struct net_device
*ndev
= netdev_notifier_info_to_dev(ptr
);
194 struct ethtool_drvinfo drvinfo
;
195 struct qede_dev
*edev
;
197 /* Currently only support name change */
198 if (event
!= NETDEV_CHANGENAME
)
201 /* Check whether this is a qede device */
202 if (!ndev
|| !ndev
->ethtool_ops
|| !ndev
->ethtool_ops
->get_drvinfo
)
205 memset(&drvinfo
, 0, sizeof(drvinfo
));
206 ndev
->ethtool_ops
->get_drvinfo(ndev
, &drvinfo
);
207 if (strcmp(drvinfo
.driver
, "qede"))
209 edev
= netdev_priv(ndev
);
211 /* Notify qed of the name change */
212 if (!edev
->ops
|| !edev
->ops
->common
)
214 edev
->ops
->common
->set_id(edev
->cdev
, edev
->ndev
->name
,
221 static struct notifier_block qede_netdev_notifier
= {
222 .notifier_call
= qede_netdev_event
,
226 int __init
qede_init(void)
230 pr_notice("qede_init: %s\n", version
);
232 qed_ops
= qed_get_eth_ops();
234 pr_notice("Failed to get qed ethtool operations\n");
238 /* Must register notifier before pci ops, since we might miss
239 * interface rename after pci probe and netdev registeration.
241 ret
= register_netdevice_notifier(&qede_netdev_notifier
);
243 pr_notice("Failed to register netdevice_notifier\n");
248 ret
= pci_register_driver(&qede_pci_driver
);
250 pr_notice("Failed to register driver\n");
251 unregister_netdevice_notifier(&qede_netdev_notifier
);
259 static void __exit
qede_cleanup(void)
261 pr_notice("qede_cleanup called\n");
263 unregister_netdevice_notifier(&qede_netdev_notifier
);
264 pci_unregister_driver(&qede_pci_driver
);
268 module_init(qede_init
);
269 module_exit(qede_cleanup
);
271 /* -------------------------------------------------------------------------
273 * -------------------------------------------------------------------------
276 /* Unmap the data and free skb */
277 static int qede_free_tx_pkt(struct qede_dev
*edev
,
278 struct qede_tx_queue
*txq
,
281 u16 idx
= txq
->sw_tx_cons
& NUM_TX_BDS_MAX
;
282 struct sk_buff
*skb
= txq
->sw_tx_ring
[idx
].skb
;
283 struct eth_tx_1st_bd
*first_bd
;
284 struct eth_tx_bd
*tx_data_bd
;
285 int bds_consumed
= 0;
287 bool data_split
= txq
->sw_tx_ring
[idx
].flags
& QEDE_TSO_SPLIT_BD
;
288 int i
, split_bd_len
= 0;
290 if (unlikely(!skb
)) {
292 "skb is null for txq idx=%d txq->sw_tx_cons=%d txq->sw_tx_prod=%d\n",
293 idx
, txq
->sw_tx_cons
, txq
->sw_tx_prod
);
299 first_bd
= (struct eth_tx_1st_bd
*)qed_chain_consume(&txq
->tx_pbl
);
303 nbds
= first_bd
->data
.nbds
;
306 struct eth_tx_bd
*split
= (struct eth_tx_bd
*)
307 qed_chain_consume(&txq
->tx_pbl
);
308 split_bd_len
= BD_UNMAP_LEN(split
);
311 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(first_bd
),
312 BD_UNMAP_LEN(first_bd
) + split_bd_len
, DMA_TO_DEVICE
);
314 /* Unmap the data of the skb frags */
315 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++, bds_consumed
++) {
316 tx_data_bd
= (struct eth_tx_bd
*)
317 qed_chain_consume(&txq
->tx_pbl
);
318 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(tx_data_bd
),
319 BD_UNMAP_LEN(tx_data_bd
), DMA_TO_DEVICE
);
322 while (bds_consumed
++ < nbds
)
323 qed_chain_consume(&txq
->tx_pbl
);
326 dev_kfree_skb_any(skb
);
327 txq
->sw_tx_ring
[idx
].skb
= NULL
;
328 txq
->sw_tx_ring
[idx
].flags
= 0;
333 /* Unmap the data and free skb when mapping failed during start_xmit */
334 static void qede_free_failed_tx_pkt(struct qede_dev
*edev
,
335 struct qede_tx_queue
*txq
,
336 struct eth_tx_1st_bd
*first_bd
,
340 u16 idx
= txq
->sw_tx_prod
& NUM_TX_BDS_MAX
;
341 struct sk_buff
*skb
= txq
->sw_tx_ring
[idx
].skb
;
342 struct eth_tx_bd
*tx_data_bd
;
343 int i
, split_bd_len
= 0;
345 /* Return prod to its position before this skb was handled */
346 qed_chain_set_prod(&txq
->tx_pbl
,
347 le16_to_cpu(txq
->tx_db
.data
.bd_prod
),
350 first_bd
= (struct eth_tx_1st_bd
*)qed_chain_produce(&txq
->tx_pbl
);
353 struct eth_tx_bd
*split
= (struct eth_tx_bd
*)
354 qed_chain_produce(&txq
->tx_pbl
);
355 split_bd_len
= BD_UNMAP_LEN(split
);
359 dma_unmap_page(&edev
->pdev
->dev
, BD_UNMAP_ADDR(first_bd
),
360 BD_UNMAP_LEN(first_bd
) + split_bd_len
, DMA_TO_DEVICE
);
362 /* Unmap the data of the skb frags */
363 for (i
= 0; i
< nbd
; i
++) {
364 tx_data_bd
= (struct eth_tx_bd
*)
365 qed_chain_produce(&txq
->tx_pbl
);
366 if (tx_data_bd
->nbytes
)
367 dma_unmap_page(&edev
->pdev
->dev
,
368 BD_UNMAP_ADDR(tx_data_bd
),
369 BD_UNMAP_LEN(tx_data_bd
), DMA_TO_DEVICE
);
372 /* Return again prod to its position before this skb was handled */
373 qed_chain_set_prod(&txq
->tx_pbl
,
374 le16_to_cpu(txq
->tx_db
.data
.bd_prod
),
378 dev_kfree_skb_any(skb
);
379 txq
->sw_tx_ring
[idx
].skb
= NULL
;
380 txq
->sw_tx_ring
[idx
].flags
= 0;
383 static u32
qede_xmit_type(struct qede_dev
*edev
,
387 u32 rc
= XMIT_L4_CSUM
;
390 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
)
393 l3_proto
= vlan_get_protocol(skb
);
394 if (l3_proto
== htons(ETH_P_IPV6
) &&
395 (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_IPV6
))
398 if (skb
->encapsulation
)
407 static void qede_set_params_for_ipv6_ext(struct sk_buff
*skb
,
408 struct eth_tx_2nd_bd
*second_bd
,
409 struct eth_tx_3rd_bd
*third_bd
)
412 u16 bd2_bits1
= 0, bd2_bits2
= 0;
414 bd2_bits1
|= (1 << ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT
);
416 bd2_bits2
|= ((((u8
*)skb_transport_header(skb
) - skb
->data
) >> 1) &
417 ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK
)
418 << ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT
;
420 bd2_bits1
|= (ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH
<<
421 ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT
);
423 if (vlan_get_protocol(skb
) == htons(ETH_P_IPV6
))
424 l4_proto
= ipv6_hdr(skb
)->nexthdr
;
426 l4_proto
= ip_hdr(skb
)->protocol
;
428 if (l4_proto
== IPPROTO_UDP
)
429 bd2_bits1
|= 1 << ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT
;
432 third_bd
->data
.bitfields
|=
433 cpu_to_le16(((tcp_hdrlen(skb
) / 4) &
434 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK
) <<
435 ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT
);
437 second_bd
->data
.bitfields1
= cpu_to_le16(bd2_bits1
);
438 second_bd
->data
.bitfields2
= cpu_to_le16(bd2_bits2
);
441 static int map_frag_to_bd(struct qede_dev
*edev
,
443 struct eth_tx_bd
*bd
)
447 /* Map skb non-linear frag data for DMA */
448 mapping
= skb_frag_dma_map(&edev
->pdev
->dev
, frag
, 0,
451 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
452 DP_NOTICE(edev
, "Unable to map frag - dropping packet\n");
456 /* Setup the data pointer of the frag data */
457 BD_SET_UNMAP_ADDR_LEN(bd
, mapping
, skb_frag_size(frag
));
462 static u16
qede_get_skb_hlen(struct sk_buff
*skb
, bool is_encap_pkt
)
465 return (skb_inner_transport_header(skb
) +
466 inner_tcp_hdrlen(skb
) - skb
->data
);
468 return (skb_transport_header(skb
) +
469 tcp_hdrlen(skb
) - skb
->data
);
472 /* +2 for 1st BD for headers and 2nd BD for headlen (if required) */
473 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
474 static bool qede_pkt_req_lin(struct qede_dev
*edev
, struct sk_buff
*skb
,
477 int allowed_frags
= ETH_TX_MAX_BDS_PER_NON_LSO_PACKET
- 1;
479 if (xmit_type
& XMIT_LSO
) {
482 hlen
= qede_get_skb_hlen(skb
, xmit_type
& XMIT_ENC
);
484 /* linear payload would require its own BD */
485 if (skb_headlen(skb
) > hlen
)
489 return (skb_shinfo(skb
)->nr_frags
> allowed_frags
);
493 /* Main transmit function */
495 netdev_tx_t
qede_start_xmit(struct sk_buff
*skb
,
496 struct net_device
*ndev
)
498 struct qede_dev
*edev
= netdev_priv(ndev
);
499 struct netdev_queue
*netdev_txq
;
500 struct qede_tx_queue
*txq
;
501 struct eth_tx_1st_bd
*first_bd
;
502 struct eth_tx_2nd_bd
*second_bd
= NULL
;
503 struct eth_tx_3rd_bd
*third_bd
= NULL
;
504 struct eth_tx_bd
*tx_data_bd
= NULL
;
508 int rc
, frag_idx
= 0, ipv6_ext
= 0;
512 bool data_split
= false;
514 /* Get tx-queue context and netdev index */
515 txq_index
= skb_get_queue_mapping(skb
);
516 WARN_ON(txq_index
>= QEDE_TSS_CNT(edev
));
517 txq
= QEDE_TX_QUEUE(edev
, txq_index
);
518 netdev_txq
= netdev_get_tx_queue(ndev
, txq_index
);
520 WARN_ON(qed_chain_get_elem_left(&txq
->tx_pbl
) <
521 (MAX_SKB_FRAGS
+ 1));
523 xmit_type
= qede_xmit_type(edev
, skb
, &ipv6_ext
);
525 #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET)
526 if (qede_pkt_req_lin(edev
, skb
, xmit_type
)) {
527 if (skb_linearize(skb
)) {
529 "SKB linearization failed - silently dropping this SKB\n");
530 dev_kfree_skb_any(skb
);
536 /* Fill the entry in the SW ring and the BDs in the FW ring */
537 idx
= txq
->sw_tx_prod
& NUM_TX_BDS_MAX
;
538 txq
->sw_tx_ring
[idx
].skb
= skb
;
539 first_bd
= (struct eth_tx_1st_bd
*)
540 qed_chain_produce(&txq
->tx_pbl
);
541 memset(first_bd
, 0, sizeof(*first_bd
));
542 first_bd
->data
.bd_flags
.bitfields
=
543 1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT
;
545 /* Map skb linear data for DMA and set in the first BD */
546 mapping
= dma_map_single(&edev
->pdev
->dev
, skb
->data
,
547 skb_headlen(skb
), DMA_TO_DEVICE
);
548 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
549 DP_NOTICE(edev
, "SKB mapping failed\n");
550 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, 0, false);
554 BD_SET_UNMAP_ADDR_LEN(first_bd
, mapping
, skb_headlen(skb
));
556 /* In case there is IPv6 with extension headers or LSO we need 2nd and
559 if (unlikely((xmit_type
& XMIT_LSO
) | ipv6_ext
)) {
560 second_bd
= (struct eth_tx_2nd_bd
*)
561 qed_chain_produce(&txq
->tx_pbl
);
562 memset(second_bd
, 0, sizeof(*second_bd
));
565 third_bd
= (struct eth_tx_3rd_bd
*)
566 qed_chain_produce(&txq
->tx_pbl
);
567 memset(third_bd
, 0, sizeof(*third_bd
));
570 /* We need to fill in additional data in second_bd... */
571 tx_data_bd
= (struct eth_tx_bd
*)second_bd
;
574 if (skb_vlan_tag_present(skb
)) {
575 first_bd
->data
.vlan
= cpu_to_le16(skb_vlan_tag_get(skb
));
576 first_bd
->data
.bd_flags
.bitfields
|=
577 1 << ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT
;
580 /* Fill the parsing flags & params according to the requested offload */
581 if (xmit_type
& XMIT_L4_CSUM
) {
582 /* We don't re-calculate IP checksum as it is already done by
585 first_bd
->data
.bd_flags
.bitfields
|=
586 1 << ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT
;
588 if (xmit_type
& XMIT_ENC
) {
589 first_bd
->data
.bd_flags
.bitfields
|=
590 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT
;
591 first_bd
->data
.bitfields
|=
592 1 << ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT
;
595 /* If the packet is IPv6 with extension header, indicate that
596 * to FW and pass few params, since the device cracker doesn't
597 * support parsing IPv6 with extension header/s.
599 if (unlikely(ipv6_ext
))
600 qede_set_params_for_ipv6_ext(skb
, second_bd
, third_bd
);
603 if (xmit_type
& XMIT_LSO
) {
604 first_bd
->data
.bd_flags
.bitfields
|=
605 (1 << ETH_TX_1ST_BD_FLAGS_LSO_SHIFT
);
606 third_bd
->data
.lso_mss
=
607 cpu_to_le16(skb_shinfo(skb
)->gso_size
);
609 if (unlikely(xmit_type
& XMIT_ENC
)) {
610 first_bd
->data
.bd_flags
.bitfields
|=
611 1 << ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT
;
612 hlen
= qede_get_skb_hlen(skb
, true);
614 first_bd
->data
.bd_flags
.bitfields
|=
615 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT
;
616 hlen
= qede_get_skb_hlen(skb
, false);
619 /* @@@TBD - if will not be removed need to check */
620 third_bd
->data
.bitfields
|=
621 cpu_to_le16((1 << ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT
));
623 /* Make life easier for FW guys who can't deal with header and
624 * data on same BD. If we need to split, use the second bd...
626 if (unlikely(skb_headlen(skb
) > hlen
)) {
627 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
628 "TSO split header size is %d (%x:%x)\n",
629 first_bd
->nbytes
, first_bd
->addr
.hi
,
632 mapping
= HILO_U64(le32_to_cpu(first_bd
->addr
.hi
),
633 le32_to_cpu(first_bd
->addr
.lo
)) +
636 BD_SET_UNMAP_ADDR_LEN(tx_data_bd
, mapping
,
637 le16_to_cpu(first_bd
->nbytes
) -
640 /* this marks the BD as one that has no
643 txq
->sw_tx_ring
[idx
].flags
|= QEDE_TSO_SPLIT_BD
;
645 first_bd
->nbytes
= cpu_to_le16(hlen
);
647 tx_data_bd
= (struct eth_tx_bd
*)third_bd
;
651 first_bd
->data
.bitfields
|=
652 (skb
->len
& ETH_TX_DATA_1ST_BD_PKT_LEN_MASK
) <<
653 ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT
;
656 /* Handle fragmented skb */
657 /* special handle for frags inside 2nd and 3rd bds.. */
658 while (tx_data_bd
&& frag_idx
< skb_shinfo(skb
)->nr_frags
) {
659 rc
= map_frag_to_bd(edev
,
660 &skb_shinfo(skb
)->frags
[frag_idx
],
663 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, nbd
,
668 if (tx_data_bd
== (struct eth_tx_bd
*)second_bd
)
669 tx_data_bd
= (struct eth_tx_bd
*)third_bd
;
676 /* map last frags into 4th, 5th .... */
677 for (; frag_idx
< skb_shinfo(skb
)->nr_frags
; frag_idx
++, nbd
++) {
678 tx_data_bd
= (struct eth_tx_bd
*)
679 qed_chain_produce(&txq
->tx_pbl
);
681 memset(tx_data_bd
, 0, sizeof(*tx_data_bd
));
683 rc
= map_frag_to_bd(edev
,
684 &skb_shinfo(skb
)->frags
[frag_idx
],
687 qede_free_failed_tx_pkt(edev
, txq
, first_bd
, nbd
,
693 /* update the first BD with the actual num BDs */
694 first_bd
->data
.nbds
= nbd
;
696 netdev_tx_sent_queue(netdev_txq
, skb
->len
);
698 skb_tx_timestamp(skb
);
700 /* Advance packet producer only before sending the packet since mapping
705 /* 'next page' entries are counted in the producer value */
706 txq
->tx_db
.data
.bd_prod
=
707 cpu_to_le16(qed_chain_get_prod_idx(&txq
->tx_pbl
));
709 /* wmb makes sure that the BDs data is updated before updating the
710 * producer, otherwise FW may read old data from the BDs.
714 writel(txq
->tx_db
.raw
, txq
->doorbell_addr
);
716 /* mmiowb is needed to synchronize doorbell writes from more than one
717 * processor. It guarantees that the write arrives to the device before
718 * the queue lock is released and another start_xmit is called (possibly
719 * on another CPU). Without this barrier, the next doorbell can bypass
720 * this doorbell. This is applicable to IA64/Altix systems.
724 if (unlikely(qed_chain_get_elem_left(&txq
->tx_pbl
)
725 < (MAX_SKB_FRAGS
+ 1))) {
726 netif_tx_stop_queue(netdev_txq
);
727 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
728 "Stop queue was called\n");
729 /* paired memory barrier is in qede_tx_int(), we have to keep
730 * ordering of set_bit() in netif_tx_stop_queue() and read of
735 if (qed_chain_get_elem_left(&txq
->tx_pbl
)
736 >= (MAX_SKB_FRAGS
+ 1) &&
737 (edev
->state
== QEDE_STATE_OPEN
)) {
738 netif_tx_wake_queue(netdev_txq
);
739 DP_VERBOSE(edev
, NETIF_MSG_TX_QUEUED
,
740 "Wake queue was called\n");
747 int qede_txq_has_work(struct qede_tx_queue
*txq
)
751 /* Tell compiler that consumer and producer can change */
753 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
754 if (qed_chain_get_cons_idx(&txq
->tx_pbl
) == hw_bd_cons
+ 1)
757 return hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
);
760 static int qede_tx_int(struct qede_dev
*edev
,
761 struct qede_tx_queue
*txq
)
763 struct netdev_queue
*netdev_txq
;
765 unsigned int pkts_compl
= 0, bytes_compl
= 0;
768 netdev_txq
= netdev_get_tx_queue(edev
->ndev
, txq
->index
);
770 hw_bd_cons
= le16_to_cpu(*txq
->hw_cons_ptr
);
773 while (hw_bd_cons
!= qed_chain_get_cons_idx(&txq
->tx_pbl
)) {
776 rc
= qede_free_tx_pkt(edev
, txq
, &len
);
778 DP_NOTICE(edev
, "hw_bd_cons = %d, chain_cons=%d\n",
780 qed_chain_get_cons_idx(&txq
->tx_pbl
));
789 netdev_tx_completed_queue(netdev_txq
, pkts_compl
, bytes_compl
);
791 /* Need to make the tx_bd_cons update visible to start_xmit()
792 * before checking for netif_tx_queue_stopped(). Without the
793 * memory barrier, there is a small possibility that
794 * start_xmit() will miss it and cause the queue to be stopped
796 * On the other hand we need an rmb() here to ensure the proper
797 * ordering of bit testing in the following
798 * netif_tx_queue_stopped(txq) call.
802 if (unlikely(netif_tx_queue_stopped(netdev_txq
))) {
803 /* Taking tx_lock is needed to prevent reenabling the queue
804 * while it's empty. This could have happen if rx_action() gets
805 * suspended in qede_tx_int() after the condition before
806 * netif_tx_wake_queue(), while tx_action (qede_start_xmit()):
808 * stops the queue->sees fresh tx_bd_cons->releases the queue->
809 * sends some packets consuming the whole queue again->
813 __netif_tx_lock(netdev_txq
, smp_processor_id());
815 if ((netif_tx_queue_stopped(netdev_txq
)) &&
816 (edev
->state
== QEDE_STATE_OPEN
) &&
817 (qed_chain_get_elem_left(&txq
->tx_pbl
)
818 >= (MAX_SKB_FRAGS
+ 1))) {
819 netif_tx_wake_queue(netdev_txq
);
820 DP_VERBOSE(edev
, NETIF_MSG_TX_DONE
,
821 "Wake queue was called\n");
824 __netif_tx_unlock(netdev_txq
);
830 bool qede_has_rx_work(struct qede_rx_queue
*rxq
)
832 u16 hw_comp_cons
, sw_comp_cons
;
834 /* Tell compiler that status block fields can change */
837 hw_comp_cons
= le16_to_cpu(*rxq
->hw_cons_ptr
);
838 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
840 return hw_comp_cons
!= sw_comp_cons
;
843 static bool qede_has_tx_work(struct qede_fastpath
*fp
)
847 for (tc
= 0; tc
< fp
->edev
->num_tc
; tc
++)
848 if (qede_txq_has_work(&fp
->txqs
[tc
]))
853 static inline void qede_rx_bd_ring_consume(struct qede_rx_queue
*rxq
)
855 qed_chain_consume(&rxq
->rx_bd_ring
);
859 /* This function reuses the buffer(from an offset) from
860 * consumer index to producer index in the bd ring
862 static inline void qede_reuse_page(struct qede_dev
*edev
,
863 struct qede_rx_queue
*rxq
,
864 struct sw_rx_data
*curr_cons
)
866 struct eth_rx_bd
*rx_bd_prod
= qed_chain_produce(&rxq
->rx_bd_ring
);
867 struct sw_rx_data
*curr_prod
;
868 dma_addr_t new_mapping
;
870 curr_prod
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
871 *curr_prod
= *curr_cons
;
873 new_mapping
= curr_prod
->mapping
+ curr_prod
->page_offset
;
875 rx_bd_prod
->addr
.hi
= cpu_to_le32(upper_32_bits(new_mapping
));
876 rx_bd_prod
->addr
.lo
= cpu_to_le32(lower_32_bits(new_mapping
));
879 curr_cons
->data
= NULL
;
882 /* In case of allocation failures reuse buffers
883 * from consumer index to produce buffers for firmware
885 void qede_recycle_rx_bd_ring(struct qede_rx_queue
*rxq
,
886 struct qede_dev
*edev
, u8 count
)
888 struct sw_rx_data
*curr_cons
;
890 for (; count
> 0; count
--) {
891 curr_cons
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
];
892 qede_reuse_page(edev
, rxq
, curr_cons
);
893 qede_rx_bd_ring_consume(rxq
);
897 static inline int qede_realloc_rx_buffer(struct qede_dev
*edev
,
898 struct qede_rx_queue
*rxq
,
899 struct sw_rx_data
*curr_cons
)
901 /* Move to the next segment in the page */
902 curr_cons
->page_offset
+= rxq
->rx_buf_seg_size
;
904 if (curr_cons
->page_offset
== PAGE_SIZE
) {
905 if (unlikely(qede_alloc_rx_buffer(edev
, rxq
))) {
906 /* Since we failed to allocate new buffer
907 * current buffer can be used again.
909 curr_cons
->page_offset
-= rxq
->rx_buf_seg_size
;
914 dma_unmap_page(&edev
->pdev
->dev
, curr_cons
->mapping
,
915 PAGE_SIZE
, DMA_FROM_DEVICE
);
917 /* Increment refcount of the page as we don't want
918 * network stack to take the ownership of the page
919 * which can be recycled multiple times by the driver.
921 page_ref_inc(curr_cons
->data
);
922 qede_reuse_page(edev
, rxq
, curr_cons
);
928 static inline void qede_update_rx_prod(struct qede_dev
*edev
,
929 struct qede_rx_queue
*rxq
)
931 u16 bd_prod
= qed_chain_get_prod_idx(&rxq
->rx_bd_ring
);
932 u16 cqe_prod
= qed_chain_get_prod_idx(&rxq
->rx_comp_ring
);
933 struct eth_rx_prod_data rx_prods
= {0};
935 /* Update producers */
936 rx_prods
.bd_prod
= cpu_to_le16(bd_prod
);
937 rx_prods
.cqe_prod
= cpu_to_le16(cqe_prod
);
939 /* Make sure that the BD and SGE data is updated before updating the
940 * producers since FW might read the BD/SGE right after the producer
945 internal_ram_wr(rxq
->hw_rxq_prod_addr
, sizeof(rx_prods
),
948 /* mmiowb is needed to synchronize doorbell writes from more than one
949 * processor. It guarantees that the write arrives to the device before
950 * the napi lock is released and another qede_poll is called (possibly
951 * on another CPU). Without this barrier, the next doorbell can bypass
952 * this doorbell. This is applicable to IA64/Altix systems.
957 static u32
qede_get_rxhash(struct qede_dev
*edev
,
960 enum pkt_hash_types
*rxhash_type
)
962 enum rss_hash_type htype
;
964 htype
= GET_FIELD(bitfields
, ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE
);
966 if ((edev
->ndev
->features
& NETIF_F_RXHASH
) && htype
) {
967 *rxhash_type
= ((htype
== RSS_HASH_TYPE_IPV4
) ||
968 (htype
== RSS_HASH_TYPE_IPV6
)) ?
969 PKT_HASH_TYPE_L3
: PKT_HASH_TYPE_L4
;
970 return le32_to_cpu(rss_hash
);
972 *rxhash_type
= PKT_HASH_TYPE_NONE
;
976 static void qede_set_skb_csum(struct sk_buff
*skb
, u8 csum_flag
)
978 skb_checksum_none_assert(skb
);
980 if (csum_flag
& QEDE_CSUM_UNNECESSARY
)
981 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
983 if (csum_flag
& QEDE_TUNN_CSUM_UNNECESSARY
)
987 static inline void qede_skb_receive(struct qede_dev
*edev
,
988 struct qede_fastpath
*fp
,
993 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
),
996 napi_gro_receive(&fp
->napi
, skb
);
999 static void qede_set_gro_params(struct qede_dev
*edev
,
1000 struct sk_buff
*skb
,
1001 struct eth_fast_path_rx_tpa_start_cqe
*cqe
)
1003 u16 parsing_flags
= le16_to_cpu(cqe
->pars_flags
.flags
);
1005 if (((parsing_flags
>> PARSING_AND_ERR_FLAGS_L3TYPE_SHIFT
) &
1006 PARSING_AND_ERR_FLAGS_L3TYPE_MASK
) == 2)
1007 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV6
;
1009 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV4
;
1011 skb_shinfo(skb
)->gso_size
= __le16_to_cpu(cqe
->len_on_first_bd
) -
1015 static int qede_fill_frag_skb(struct qede_dev
*edev
,
1016 struct qede_rx_queue
*rxq
,
1020 struct sw_rx_data
*current_bd
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
&
1022 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[tpa_agg_index
];
1023 struct sk_buff
*skb
= tpa_info
->skb
;
1025 if (unlikely(tpa_info
->agg_state
!= QEDE_AGG_STATE_START
))
1028 /* Add one frag and update the appropriate fields in the skb */
1029 skb_fill_page_desc(skb
, tpa_info
->frag_id
++,
1030 current_bd
->data
, current_bd
->page_offset
,
1033 if (unlikely(qede_realloc_rx_buffer(edev
, rxq
, current_bd
))) {
1034 /* Incr page ref count to reuse on allocation failure
1035 * so that it doesn't get freed while freeing SKB.
1037 page_ref_inc(current_bd
->data
);
1041 qed_chain_consume(&rxq
->rx_bd_ring
);
1044 skb
->data_len
+= len_on_bd
;
1045 skb
->truesize
+= rxq
->rx_buf_seg_size
;
1046 skb
->len
+= len_on_bd
;
1051 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
1052 qede_recycle_rx_bd_ring(rxq
, edev
, 1);
1056 static void qede_tpa_start(struct qede_dev
*edev
,
1057 struct qede_rx_queue
*rxq
,
1058 struct eth_fast_path_rx_tpa_start_cqe
*cqe
)
1060 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[cqe
->tpa_agg_index
];
1061 struct eth_rx_bd
*rx_bd_cons
= qed_chain_consume(&rxq
->rx_bd_ring
);
1062 struct eth_rx_bd
*rx_bd_prod
= qed_chain_produce(&rxq
->rx_bd_ring
);
1063 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
1064 dma_addr_t mapping
= tpa_info
->replace_buf_mapping
;
1065 struct sw_rx_data
*sw_rx_data_cons
;
1066 struct sw_rx_data
*sw_rx_data_prod
;
1067 enum pkt_hash_types rxhash_type
;
1070 sw_rx_data_cons
= &rxq
->sw_rx_ring
[rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
];
1071 sw_rx_data_prod
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
1073 /* Use pre-allocated replacement buffer - we can't release the agg.
1074 * start until its over and we don't want to risk allocation failing
1075 * here, so re-allocate when aggregation will be over.
1077 sw_rx_data_prod
->mapping
= replace_buf
->mapping
;
1079 sw_rx_data_prod
->data
= replace_buf
->data
;
1080 rx_bd_prod
->addr
.hi
= cpu_to_le32(upper_32_bits(mapping
));
1081 rx_bd_prod
->addr
.lo
= cpu_to_le32(lower_32_bits(mapping
));
1082 sw_rx_data_prod
->page_offset
= replace_buf
->page_offset
;
1086 /* move partial skb from cons to pool (don't unmap yet)
1087 * save mapping, incase we drop the packet later on.
1089 tpa_info
->start_buf
= *sw_rx_data_cons
;
1090 mapping
= HILO_U64(le32_to_cpu(rx_bd_cons
->addr
.hi
),
1091 le32_to_cpu(rx_bd_cons
->addr
.lo
));
1093 tpa_info
->start_buf_mapping
= mapping
;
1096 /* set tpa state to start only if we are able to allocate skb
1097 * for this aggregation, otherwise mark as error and aggregation will
1100 tpa_info
->skb
= netdev_alloc_skb(edev
->ndev
,
1101 le16_to_cpu(cqe
->len_on_first_bd
));
1102 if (unlikely(!tpa_info
->skb
)) {
1103 DP_NOTICE(edev
, "Failed to allocate SKB for gro\n");
1104 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
1108 skb_put(tpa_info
->skb
, le16_to_cpu(cqe
->len_on_first_bd
));
1109 memcpy(&tpa_info
->start_cqe
, cqe
, sizeof(tpa_info
->start_cqe
));
1111 /* Start filling in the aggregation info */
1112 tpa_info
->frag_id
= 0;
1113 tpa_info
->agg_state
= QEDE_AGG_STATE_START
;
1115 rxhash
= qede_get_rxhash(edev
, cqe
->bitfields
,
1116 cqe
->rss_hash
, &rxhash_type
);
1117 skb_set_hash(tpa_info
->skb
, rxhash
, rxhash_type
);
1118 if ((le16_to_cpu(cqe
->pars_flags
.flags
) >>
1119 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT
) &
1120 PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK
)
1121 tpa_info
->vlan_tag
= le16_to_cpu(cqe
->vlan_tag
);
1123 tpa_info
->vlan_tag
= 0;
1125 /* This is needed in order to enable forwarding support */
1126 qede_set_gro_params(edev
, tpa_info
->skb
, cqe
);
1128 cons_buf
: /* We still need to handle bd_len_list to consume buffers */
1129 if (likely(cqe
->ext_bd_len_list
[0]))
1130 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1131 le16_to_cpu(cqe
->ext_bd_len_list
[0]));
1133 if (unlikely(cqe
->ext_bd_len_list
[1])) {
1135 "Unlikely - got a TPA aggregation with more than one ext_bd_len_list entry in the TPA start\n");
1136 tpa_info
->agg_state
= QEDE_AGG_STATE_ERROR
;
1141 static void qede_gro_ip_csum(struct sk_buff
*skb
)
1143 const struct iphdr
*iph
= ip_hdr(skb
);
1146 skb_set_transport_header(skb
, sizeof(struct iphdr
));
1149 th
->check
= ~tcp_v4_check(skb
->len
- skb_transport_offset(skb
),
1150 iph
->saddr
, iph
->daddr
, 0);
1152 tcp_gro_complete(skb
);
1155 static void qede_gro_ipv6_csum(struct sk_buff
*skb
)
1157 struct ipv6hdr
*iph
= ipv6_hdr(skb
);
1160 skb_set_transport_header(skb
, sizeof(struct ipv6hdr
));
1163 th
->check
= ~tcp_v6_check(skb
->len
- skb_transport_offset(skb
),
1164 &iph
->saddr
, &iph
->daddr
, 0);
1165 tcp_gro_complete(skb
);
1169 static void qede_gro_receive(struct qede_dev
*edev
,
1170 struct qede_fastpath
*fp
,
1171 struct sk_buff
*skb
,
1174 /* FW can send a single MTU sized packet from gro flow
1175 * due to aggregation timeout/last segment etc. which
1176 * is not expected to be a gro packet. If a skb has zero
1177 * frags then simply push it in the stack as non gso skb.
1179 if (unlikely(!skb
->data_len
)) {
1180 skb_shinfo(skb
)->gso_type
= 0;
1181 skb_shinfo(skb
)->gso_size
= 0;
1186 if (skb_shinfo(skb
)->gso_size
) {
1187 skb_set_network_header(skb
, 0);
1189 switch (skb
->protocol
) {
1190 case htons(ETH_P_IP
):
1191 qede_gro_ip_csum(skb
);
1193 case htons(ETH_P_IPV6
):
1194 qede_gro_ipv6_csum(skb
);
1198 "Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n",
1199 ntohs(skb
->protocol
));
1205 skb_record_rx_queue(skb
, fp
->rss_id
);
1206 qede_skb_receive(edev
, fp
, skb
, vlan_tag
);
1209 static inline void qede_tpa_cont(struct qede_dev
*edev
,
1210 struct qede_rx_queue
*rxq
,
1211 struct eth_fast_path_rx_tpa_cont_cqe
*cqe
)
1215 for (i
= 0; cqe
->len_list
[i
]; i
++)
1216 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1217 le16_to_cpu(cqe
->len_list
[i
]));
1219 if (unlikely(i
> 1))
1221 "Strange - TPA cont with more than a single len_list entry\n");
1224 static void qede_tpa_end(struct qede_dev
*edev
,
1225 struct qede_fastpath
*fp
,
1226 struct eth_fast_path_rx_tpa_end_cqe
*cqe
)
1228 struct qede_rx_queue
*rxq
= fp
->rxq
;
1229 struct qede_agg_info
*tpa_info
;
1230 struct sk_buff
*skb
;
1233 tpa_info
= &rxq
->tpa_info
[cqe
->tpa_agg_index
];
1234 skb
= tpa_info
->skb
;
1236 for (i
= 0; cqe
->len_list
[i
]; i
++)
1237 qede_fill_frag_skb(edev
, rxq
, cqe
->tpa_agg_index
,
1238 le16_to_cpu(cqe
->len_list
[i
]));
1239 if (unlikely(i
> 1))
1241 "Strange - TPA emd with more than a single len_list entry\n");
1243 if (unlikely(tpa_info
->agg_state
!= QEDE_AGG_STATE_START
))
1247 if (unlikely(cqe
->num_of_bds
!= tpa_info
->frag_id
+ 1))
1249 "Strange - TPA had %02x BDs, but SKB has only %d frags\n",
1250 cqe
->num_of_bds
, tpa_info
->frag_id
);
1251 if (unlikely(skb
->len
!= le16_to_cpu(cqe
->total_packet_len
)))
1253 "Strange - total packet len [cqe] is %4x but SKB has len %04x\n",
1254 le16_to_cpu(cqe
->total_packet_len
), skb
->len
);
1257 page_address(tpa_info
->start_buf
.data
) +
1258 tpa_info
->start_cqe
.placement_offset
+
1259 tpa_info
->start_buf
.page_offset
,
1260 le16_to_cpu(tpa_info
->start_cqe
.len_on_first_bd
));
1262 /* Recycle [mapped] start buffer for the next replacement */
1263 tpa_info
->replace_buf
= tpa_info
->start_buf
;
1264 tpa_info
->replace_buf_mapping
= tpa_info
->start_buf_mapping
;
1266 /* Finalize the SKB */
1267 skb
->protocol
= eth_type_trans(skb
, edev
->ndev
);
1268 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
1270 /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count
1271 * to skb_shinfo(skb)->gso_segs
1273 NAPI_GRO_CB(skb
)->count
= le16_to_cpu(cqe
->num_of_coalesced_segs
);
1275 qede_gro_receive(edev
, fp
, skb
, tpa_info
->vlan_tag
);
1277 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
1281 /* The BD starting the aggregation is still mapped; Re-use it for
1282 * future aggregations [as replacement buffer]
1284 memcpy(&tpa_info
->replace_buf
, &tpa_info
->start_buf
,
1285 sizeof(struct sw_rx_data
));
1286 tpa_info
->replace_buf_mapping
= tpa_info
->start_buf_mapping
;
1287 tpa_info
->start_buf
.data
= NULL
;
1288 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
1289 dev_kfree_skb_any(tpa_info
->skb
);
1290 tpa_info
->skb
= NULL
;
1293 static bool qede_tunn_exist(u16 flag
)
1295 return !!(flag
& (PARSING_AND_ERR_FLAGS_TUNNELEXIST_MASK
<<
1296 PARSING_AND_ERR_FLAGS_TUNNELEXIST_SHIFT
));
1299 static u8
qede_check_tunn_csum(u16 flag
)
1304 if (flag
& (PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_MASK
<<
1305 PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_SHIFT
))
1306 csum_flag
|= PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_MASK
<<
1307 PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_SHIFT
;
1309 if (flag
& (PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK
<<
1310 PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT
)) {
1311 csum_flag
|= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK
<<
1312 PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT
;
1313 tcsum
= QEDE_TUNN_CSUM_UNNECESSARY
;
1316 csum_flag
|= PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_MASK
<<
1317 PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_SHIFT
|
1318 PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK
<<
1319 PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT
;
1321 if (csum_flag
& flag
)
1322 return QEDE_CSUM_ERROR
;
1324 return QEDE_CSUM_UNNECESSARY
| tcsum
;
1327 static u8
qede_check_notunn_csum(u16 flag
)
1332 if (flag
& (PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK
<<
1333 PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT
)) {
1334 csum_flag
|= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK
<<
1335 PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT
;
1336 csum
= QEDE_CSUM_UNNECESSARY
;
1339 csum_flag
|= PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK
<<
1340 PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT
;
1342 if (csum_flag
& flag
)
1343 return QEDE_CSUM_ERROR
;
1348 static u8
qede_check_csum(u16 flag
)
1350 if (!qede_tunn_exist(flag
))
1351 return qede_check_notunn_csum(flag
);
1353 return qede_check_tunn_csum(flag
);
1356 static int qede_rx_int(struct qede_fastpath
*fp
, int budget
)
1358 struct qede_dev
*edev
= fp
->edev
;
1359 struct qede_rx_queue
*rxq
= fp
->rxq
;
1361 u16 hw_comp_cons
, sw_comp_cons
, sw_rx_index
, parse_flag
;
1365 hw_comp_cons
= le16_to_cpu(*rxq
->hw_cons_ptr
);
1366 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
1368 /* Memory barrier to prevent the CPU from doing speculative reads of CQE
1369 * / BD in the while-loop before reading hw_comp_cons. If the CQE is
1370 * read before it is written by FW, then FW writes CQE and SB, and then
1371 * the CPU reads the hw_comp_cons, it will use an old CQE.
1375 /* Loop to complete all indicated BDs */
1376 while (sw_comp_cons
!= hw_comp_cons
) {
1377 struct eth_fast_path_rx_reg_cqe
*fp_cqe
;
1378 enum pkt_hash_types rxhash_type
;
1379 enum eth_rx_cqe_type cqe_type
;
1380 struct sw_rx_data
*sw_rx_data
;
1381 union eth_rx_cqe
*cqe
;
1382 struct sk_buff
*skb
;
1388 /* Get the CQE from the completion ring */
1389 cqe
= (union eth_rx_cqe
*)
1390 qed_chain_consume(&rxq
->rx_comp_ring
);
1391 cqe_type
= cqe
->fast_path_regular
.type
;
1393 if (unlikely(cqe_type
== ETH_RX_CQE_TYPE_SLOW_PATH
)) {
1394 edev
->ops
->eth_cqe_completion(
1395 edev
->cdev
, fp
->rss_id
,
1396 (struct eth_slow_path_rx_cqe
*)cqe
);
1400 if (cqe_type
!= ETH_RX_CQE_TYPE_REGULAR
) {
1402 case ETH_RX_CQE_TYPE_TPA_START
:
1403 qede_tpa_start(edev
, rxq
,
1404 &cqe
->fast_path_tpa_start
);
1406 case ETH_RX_CQE_TYPE_TPA_CONT
:
1407 qede_tpa_cont(edev
, rxq
,
1408 &cqe
->fast_path_tpa_cont
);
1410 case ETH_RX_CQE_TYPE_TPA_END
:
1411 qede_tpa_end(edev
, fp
,
1412 &cqe
->fast_path_tpa_end
);
1419 /* Get the data from the SW ring */
1420 sw_rx_index
= rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
;
1421 sw_rx_data
= &rxq
->sw_rx_ring
[sw_rx_index
];
1422 data
= sw_rx_data
->data
;
1424 fp_cqe
= &cqe
->fast_path_regular
;
1425 len
= le16_to_cpu(fp_cqe
->len_on_first_bd
);
1426 pad
= fp_cqe
->placement_offset
;
1427 flags
= cqe
->fast_path_regular
.pars_flags
.flags
;
1429 /* If this is an error packet then drop it */
1430 parse_flag
= le16_to_cpu(flags
);
1432 csum_flag
= qede_check_csum(parse_flag
);
1433 if (unlikely(csum_flag
== QEDE_CSUM_ERROR
)) {
1435 "CQE in CONS = %u has error, flags = %x, dropping incoming packet\n",
1436 sw_comp_cons
, parse_flag
);
1437 rxq
->rx_hw_errors
++;
1438 qede_recycle_rx_bd_ring(rxq
, edev
, fp_cqe
->bd_num
);
1442 skb
= netdev_alloc_skb(edev
->ndev
, QEDE_RX_HDR_SIZE
);
1443 if (unlikely(!skb
)) {
1445 "Build_skb failed, dropping incoming packet\n");
1446 qede_recycle_rx_bd_ring(rxq
, edev
, fp_cqe
->bd_num
);
1447 rxq
->rx_alloc_errors
++;
1451 /* Copy data into SKB */
1452 if (len
+ pad
<= QEDE_RX_HDR_SIZE
) {
1453 memcpy(skb_put(skb
, len
),
1454 page_address(data
) + pad
+
1455 sw_rx_data
->page_offset
, len
);
1456 qede_reuse_page(edev
, rxq
, sw_rx_data
);
1458 struct skb_frag_struct
*frag
;
1459 unsigned int pull_len
;
1462 frag
= &skb_shinfo(skb
)->frags
[0];
1464 skb_add_rx_frag(skb
, skb_shinfo(skb
)->nr_frags
, data
,
1465 pad
+ sw_rx_data
->page_offset
,
1466 len
, rxq
->rx_buf_seg_size
);
1468 va
= skb_frag_address(frag
);
1469 pull_len
= eth_get_headlen(va
, QEDE_RX_HDR_SIZE
);
1471 /* Align the pull_len to optimize memcpy */
1472 memcpy(skb
->data
, va
, ALIGN(pull_len
, sizeof(long)));
1474 skb_frag_size_sub(frag
, pull_len
);
1475 frag
->page_offset
+= pull_len
;
1476 skb
->data_len
-= pull_len
;
1477 skb
->tail
+= pull_len
;
1479 if (unlikely(qede_realloc_rx_buffer(edev
, rxq
,
1481 DP_ERR(edev
, "Failed to allocate rx buffer\n");
1482 /* Incr page ref count to reuse on allocation
1483 * failure so that it doesn't get freed while
1487 page_ref_inc(sw_rx_data
->data
);
1488 rxq
->rx_alloc_errors
++;
1489 qede_recycle_rx_bd_ring(rxq
, edev
,
1491 dev_kfree_skb_any(skb
);
1496 qede_rx_bd_ring_consume(rxq
);
1498 if (fp_cqe
->bd_num
!= 1) {
1499 u16 pkt_len
= le16_to_cpu(fp_cqe
->pkt_len
);
1504 for (num_frags
= fp_cqe
->bd_num
- 1; num_frags
> 0;
1506 u16 cur_size
= pkt_len
> rxq
->rx_buf_size
?
1507 rxq
->rx_buf_size
: pkt_len
;
1508 if (unlikely(!cur_size
)) {
1510 "Still got %d BDs for mapping jumbo, but length became 0\n",
1512 qede_recycle_rx_bd_ring(rxq
, edev
,
1514 dev_kfree_skb_any(skb
);
1518 if (unlikely(qede_alloc_rx_buffer(edev
, rxq
))) {
1519 qede_recycle_rx_bd_ring(rxq
, edev
,
1521 dev_kfree_skb_any(skb
);
1525 sw_rx_index
= rxq
->sw_rx_cons
& NUM_RX_BDS_MAX
;
1526 sw_rx_data
= &rxq
->sw_rx_ring
[sw_rx_index
];
1527 qede_rx_bd_ring_consume(rxq
);
1529 dma_unmap_page(&edev
->pdev
->dev
,
1530 sw_rx_data
->mapping
,
1531 PAGE_SIZE
, DMA_FROM_DEVICE
);
1533 skb_fill_page_desc(skb
,
1534 skb_shinfo(skb
)->nr_frags
++,
1535 sw_rx_data
->data
, 0,
1538 skb
->truesize
+= PAGE_SIZE
;
1539 skb
->data_len
+= cur_size
;
1540 skb
->len
+= cur_size
;
1541 pkt_len
-= cur_size
;
1544 if (unlikely(pkt_len
))
1546 "Mapped all BDs of jumbo, but still have %d bytes\n",
1550 skb
->protocol
= eth_type_trans(skb
, edev
->ndev
);
1552 rx_hash
= qede_get_rxhash(edev
, fp_cqe
->bitfields
,
1556 skb_set_hash(skb
, rx_hash
, rxhash_type
);
1558 qede_set_skb_csum(skb
, csum_flag
);
1560 skb_record_rx_queue(skb
, fp
->rss_id
);
1562 qede_skb_receive(edev
, fp
, skb
, le16_to_cpu(fp_cqe
->vlan_tag
));
1566 next_cqe
: /* don't consume bd rx buffer */
1567 qed_chain_recycle_consumed(&rxq
->rx_comp_ring
);
1568 sw_comp_cons
= qed_chain_get_cons_idx(&rxq
->rx_comp_ring
);
1569 /* CR TPA - revisit how to handle budget in TPA perhaps
1572 if (rx_pkt
== budget
)
1574 } /* repeat while sw_comp_cons != hw_comp_cons... */
1576 /* Update producers */
1577 qede_update_rx_prod(edev
, rxq
);
1582 static int qede_poll(struct napi_struct
*napi
, int budget
)
1585 struct qede_fastpath
*fp
= container_of(napi
, struct qede_fastpath
,
1587 struct qede_dev
*edev
= fp
->edev
;
1592 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
1593 if (qede_txq_has_work(&fp
->txqs
[tc
]))
1594 qede_tx_int(edev
, &fp
->txqs
[tc
]);
1596 if (qede_has_rx_work(fp
->rxq
)) {
1597 work_done
+= qede_rx_int(fp
, budget
- work_done
);
1599 /* must not complete if we consumed full budget */
1600 if (work_done
>= budget
)
1604 /* Fall out from the NAPI loop if needed */
1605 if (!(qede_has_rx_work(fp
->rxq
) || qede_has_tx_work(fp
))) {
1606 qed_sb_update_sb_idx(fp
->sb_info
);
1607 /* *_has_*_work() reads the status block,
1608 * thus we need to ensure that status block indices
1609 * have been actually read (qed_sb_update_sb_idx)
1610 * prior to this check (*_has_*_work) so that
1611 * we won't write the "newer" value of the status block
1612 * to HW (if there was a DMA right after
1613 * qede_has_rx_work and if there is no rmb, the memory
1614 * reading (qed_sb_update_sb_idx) may be postponed
1615 * to right before *_ack_sb). In this case there
1616 * will never be another interrupt until there is
1617 * another update of the status block, while there
1618 * is still unhandled work.
1622 if (!(qede_has_rx_work(fp
->rxq
) ||
1623 qede_has_tx_work(fp
))) {
1624 napi_complete(napi
);
1625 /* Update and reenable interrupts */
1626 qed_sb_ack(fp
->sb_info
, IGU_INT_ENABLE
,
1636 static irqreturn_t
qede_msix_fp_int(int irq
, void *fp_cookie
)
1638 struct qede_fastpath
*fp
= fp_cookie
;
1640 qed_sb_ack(fp
->sb_info
, IGU_INT_DISABLE
, 0 /*do not update*/);
1642 napi_schedule_irqoff(&fp
->napi
);
1646 /* -------------------------------------------------------------------------
1648 * -------------------------------------------------------------------------
1651 static int qede_open(struct net_device
*ndev
);
1652 static int qede_close(struct net_device
*ndev
);
1653 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
);
1654 static void qede_set_rx_mode(struct net_device
*ndev
);
1655 static void qede_config_rx_mode(struct net_device
*ndev
);
1657 static int qede_set_ucast_rx_mac(struct qede_dev
*edev
,
1658 enum qed_filter_xcast_params_type opcode
,
1659 unsigned char mac
[ETH_ALEN
])
1661 struct qed_filter_params filter_cmd
;
1663 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1664 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1665 filter_cmd
.filter
.ucast
.type
= opcode
;
1666 filter_cmd
.filter
.ucast
.mac_valid
= 1;
1667 ether_addr_copy(filter_cmd
.filter
.ucast
.mac
, mac
);
1669 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1672 static int qede_set_ucast_rx_vlan(struct qede_dev
*edev
,
1673 enum qed_filter_xcast_params_type opcode
,
1676 struct qed_filter_params filter_cmd
;
1678 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
1679 filter_cmd
.type
= QED_FILTER_TYPE_UCAST
;
1680 filter_cmd
.filter
.ucast
.type
= opcode
;
1681 filter_cmd
.filter
.ucast
.vlan_valid
= 1;
1682 filter_cmd
.filter
.ucast
.vlan
= vid
;
1684 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
1687 void qede_fill_by_demand_stats(struct qede_dev
*edev
)
1689 struct qed_eth_stats stats
;
1691 edev
->ops
->get_vport_stats(edev
->cdev
, &stats
);
1692 edev
->stats
.no_buff_discards
= stats
.no_buff_discards
;
1693 edev
->stats
.rx_ucast_bytes
= stats
.rx_ucast_bytes
;
1694 edev
->stats
.rx_mcast_bytes
= stats
.rx_mcast_bytes
;
1695 edev
->stats
.rx_bcast_bytes
= stats
.rx_bcast_bytes
;
1696 edev
->stats
.rx_ucast_pkts
= stats
.rx_ucast_pkts
;
1697 edev
->stats
.rx_mcast_pkts
= stats
.rx_mcast_pkts
;
1698 edev
->stats
.rx_bcast_pkts
= stats
.rx_bcast_pkts
;
1699 edev
->stats
.mftag_filter_discards
= stats
.mftag_filter_discards
;
1700 edev
->stats
.mac_filter_discards
= stats
.mac_filter_discards
;
1702 edev
->stats
.tx_ucast_bytes
= stats
.tx_ucast_bytes
;
1703 edev
->stats
.tx_mcast_bytes
= stats
.tx_mcast_bytes
;
1704 edev
->stats
.tx_bcast_bytes
= stats
.tx_bcast_bytes
;
1705 edev
->stats
.tx_ucast_pkts
= stats
.tx_ucast_pkts
;
1706 edev
->stats
.tx_mcast_pkts
= stats
.tx_mcast_pkts
;
1707 edev
->stats
.tx_bcast_pkts
= stats
.tx_bcast_pkts
;
1708 edev
->stats
.tx_err_drop_pkts
= stats
.tx_err_drop_pkts
;
1709 edev
->stats
.coalesced_pkts
= stats
.tpa_coalesced_pkts
;
1710 edev
->stats
.coalesced_events
= stats
.tpa_coalesced_events
;
1711 edev
->stats
.coalesced_aborts_num
= stats
.tpa_aborts_num
;
1712 edev
->stats
.non_coalesced_pkts
= stats
.tpa_not_coalesced_pkts
;
1713 edev
->stats
.coalesced_bytes
= stats
.tpa_coalesced_bytes
;
1715 edev
->stats
.rx_64_byte_packets
= stats
.rx_64_byte_packets
;
1716 edev
->stats
.rx_65_to_127_byte_packets
= stats
.rx_65_to_127_byte_packets
;
1717 edev
->stats
.rx_128_to_255_byte_packets
=
1718 stats
.rx_128_to_255_byte_packets
;
1719 edev
->stats
.rx_256_to_511_byte_packets
=
1720 stats
.rx_256_to_511_byte_packets
;
1721 edev
->stats
.rx_512_to_1023_byte_packets
=
1722 stats
.rx_512_to_1023_byte_packets
;
1723 edev
->stats
.rx_1024_to_1518_byte_packets
=
1724 stats
.rx_1024_to_1518_byte_packets
;
1725 edev
->stats
.rx_1519_to_1522_byte_packets
=
1726 stats
.rx_1519_to_1522_byte_packets
;
1727 edev
->stats
.rx_1519_to_2047_byte_packets
=
1728 stats
.rx_1519_to_2047_byte_packets
;
1729 edev
->stats
.rx_2048_to_4095_byte_packets
=
1730 stats
.rx_2048_to_4095_byte_packets
;
1731 edev
->stats
.rx_4096_to_9216_byte_packets
=
1732 stats
.rx_4096_to_9216_byte_packets
;
1733 edev
->stats
.rx_9217_to_16383_byte_packets
=
1734 stats
.rx_9217_to_16383_byte_packets
;
1735 edev
->stats
.rx_crc_errors
= stats
.rx_crc_errors
;
1736 edev
->stats
.rx_mac_crtl_frames
= stats
.rx_mac_crtl_frames
;
1737 edev
->stats
.rx_pause_frames
= stats
.rx_pause_frames
;
1738 edev
->stats
.rx_pfc_frames
= stats
.rx_pfc_frames
;
1739 edev
->stats
.rx_align_errors
= stats
.rx_align_errors
;
1740 edev
->stats
.rx_carrier_errors
= stats
.rx_carrier_errors
;
1741 edev
->stats
.rx_oversize_packets
= stats
.rx_oversize_packets
;
1742 edev
->stats
.rx_jabbers
= stats
.rx_jabbers
;
1743 edev
->stats
.rx_undersize_packets
= stats
.rx_undersize_packets
;
1744 edev
->stats
.rx_fragments
= stats
.rx_fragments
;
1745 edev
->stats
.tx_64_byte_packets
= stats
.tx_64_byte_packets
;
1746 edev
->stats
.tx_65_to_127_byte_packets
= stats
.tx_65_to_127_byte_packets
;
1747 edev
->stats
.tx_128_to_255_byte_packets
=
1748 stats
.tx_128_to_255_byte_packets
;
1749 edev
->stats
.tx_256_to_511_byte_packets
=
1750 stats
.tx_256_to_511_byte_packets
;
1751 edev
->stats
.tx_512_to_1023_byte_packets
=
1752 stats
.tx_512_to_1023_byte_packets
;
1753 edev
->stats
.tx_1024_to_1518_byte_packets
=
1754 stats
.tx_1024_to_1518_byte_packets
;
1755 edev
->stats
.tx_1519_to_2047_byte_packets
=
1756 stats
.tx_1519_to_2047_byte_packets
;
1757 edev
->stats
.tx_2048_to_4095_byte_packets
=
1758 stats
.tx_2048_to_4095_byte_packets
;
1759 edev
->stats
.tx_4096_to_9216_byte_packets
=
1760 stats
.tx_4096_to_9216_byte_packets
;
1761 edev
->stats
.tx_9217_to_16383_byte_packets
=
1762 stats
.tx_9217_to_16383_byte_packets
;
1763 edev
->stats
.tx_pause_frames
= stats
.tx_pause_frames
;
1764 edev
->stats
.tx_pfc_frames
= stats
.tx_pfc_frames
;
1765 edev
->stats
.tx_lpi_entry_count
= stats
.tx_lpi_entry_count
;
1766 edev
->stats
.tx_total_collisions
= stats
.tx_total_collisions
;
1767 edev
->stats
.brb_truncates
= stats
.brb_truncates
;
1768 edev
->stats
.brb_discards
= stats
.brb_discards
;
1769 edev
->stats
.tx_mac_ctrl_frames
= stats
.tx_mac_ctrl_frames
;
1772 static struct rtnl_link_stats64
*qede_get_stats64(
1773 struct net_device
*dev
,
1774 struct rtnl_link_stats64
*stats
)
1776 struct qede_dev
*edev
= netdev_priv(dev
);
1778 qede_fill_by_demand_stats(edev
);
1780 stats
->rx_packets
= edev
->stats
.rx_ucast_pkts
+
1781 edev
->stats
.rx_mcast_pkts
+
1782 edev
->stats
.rx_bcast_pkts
;
1783 stats
->tx_packets
= edev
->stats
.tx_ucast_pkts
+
1784 edev
->stats
.tx_mcast_pkts
+
1785 edev
->stats
.tx_bcast_pkts
;
1787 stats
->rx_bytes
= edev
->stats
.rx_ucast_bytes
+
1788 edev
->stats
.rx_mcast_bytes
+
1789 edev
->stats
.rx_bcast_bytes
;
1791 stats
->tx_bytes
= edev
->stats
.tx_ucast_bytes
+
1792 edev
->stats
.tx_mcast_bytes
+
1793 edev
->stats
.tx_bcast_bytes
;
1795 stats
->tx_errors
= edev
->stats
.tx_err_drop_pkts
;
1796 stats
->multicast
= edev
->stats
.rx_mcast_pkts
+
1797 edev
->stats
.rx_bcast_pkts
;
1799 stats
->rx_fifo_errors
= edev
->stats
.no_buff_discards
;
1801 stats
->collisions
= edev
->stats
.tx_total_collisions
;
1802 stats
->rx_crc_errors
= edev
->stats
.rx_crc_errors
;
1803 stats
->rx_frame_errors
= edev
->stats
.rx_align_errors
;
1808 #ifdef CONFIG_QED_SRIOV
1809 static int qede_get_vf_config(struct net_device
*dev
, int vfidx
,
1810 struct ifla_vf_info
*ivi
)
1812 struct qede_dev
*edev
= netdev_priv(dev
);
1817 return edev
->ops
->iov
->get_config(edev
->cdev
, vfidx
, ivi
);
1820 static int qede_set_vf_rate(struct net_device
*dev
, int vfidx
,
1821 int min_tx_rate
, int max_tx_rate
)
1823 struct qede_dev
*edev
= netdev_priv(dev
);
1825 return edev
->ops
->iov
->set_rate(edev
->cdev
, vfidx
, min_tx_rate
,
1829 static int qede_set_vf_spoofchk(struct net_device
*dev
, int vfidx
, bool val
)
1831 struct qede_dev
*edev
= netdev_priv(dev
);
1836 return edev
->ops
->iov
->set_spoof(edev
->cdev
, vfidx
, val
);
1839 static int qede_set_vf_link_state(struct net_device
*dev
, int vfidx
,
1842 struct qede_dev
*edev
= netdev_priv(dev
);
1847 return edev
->ops
->iov
->set_link_state(edev
->cdev
, vfidx
, link_state
);
1851 static void qede_config_accept_any_vlan(struct qede_dev
*edev
, bool action
)
1853 struct qed_update_vport_params params
;
1856 /* Proceed only if action actually needs to be performed */
1857 if (edev
->accept_any_vlan
== action
)
1860 memset(¶ms
, 0, sizeof(params
));
1862 params
.vport_id
= 0;
1863 params
.accept_any_vlan
= action
;
1864 params
.update_accept_any_vlan_flg
= 1;
1866 rc
= edev
->ops
->vport_update(edev
->cdev
, ¶ms
);
1868 DP_ERR(edev
, "Failed to %s accept-any-vlan\n",
1869 action
? "enable" : "disable");
1871 DP_INFO(edev
, "%s accept-any-vlan\n",
1872 action
? "enabled" : "disabled");
1873 edev
->accept_any_vlan
= action
;
1877 static int qede_vlan_rx_add_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1879 struct qede_dev
*edev
= netdev_priv(dev
);
1880 struct qede_vlan
*vlan
, *tmp
;
1883 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan 0x%04x\n", vid
);
1885 vlan
= kzalloc(sizeof(*vlan
), GFP_KERNEL
);
1887 DP_INFO(edev
, "Failed to allocate struct for vlan\n");
1890 INIT_LIST_HEAD(&vlan
->list
);
1892 vlan
->configured
= false;
1894 /* Verify vlan isn't already configured */
1895 list_for_each_entry(tmp
, &edev
->vlan_list
, list
) {
1896 if (tmp
->vid
== vlan
->vid
) {
1897 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
1898 "vlan already configured\n");
1904 /* If interface is down, cache this VLAN ID and return */
1905 if (edev
->state
!= QEDE_STATE_OPEN
) {
1906 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
1907 "Interface is down, VLAN %d will be configured when interface is up\n",
1910 edev
->non_configured_vlans
++;
1911 list_add(&vlan
->list
, &edev
->vlan_list
);
1916 /* Check for the filter limit.
1917 * Note - vlan0 has a reserved filter and can be added without
1918 * worrying about quota
1920 if ((edev
->configured_vlans
< edev
->dev_info
.num_vlan_filters
) ||
1922 rc
= qede_set_ucast_rx_vlan(edev
,
1923 QED_FILTER_XCAST_TYPE_ADD
,
1926 DP_ERR(edev
, "Failed to configure VLAN %d\n",
1931 vlan
->configured
= true;
1933 /* vlan0 filter isn't consuming out of our quota */
1935 edev
->configured_vlans
++;
1937 /* Out of quota; Activate accept-any-VLAN mode */
1938 if (!edev
->non_configured_vlans
)
1939 qede_config_accept_any_vlan(edev
, true);
1941 edev
->non_configured_vlans
++;
1944 list_add(&vlan
->list
, &edev
->vlan_list
);
1949 static void qede_del_vlan_from_list(struct qede_dev
*edev
,
1950 struct qede_vlan
*vlan
)
1952 /* vlan0 filter isn't consuming out of our quota */
1953 if (vlan
->vid
!= 0) {
1954 if (vlan
->configured
)
1955 edev
->configured_vlans
--;
1957 edev
->non_configured_vlans
--;
1960 list_del(&vlan
->list
);
1964 static int qede_configure_vlan_filters(struct qede_dev
*edev
)
1966 int rc
= 0, real_rc
= 0, accept_any_vlan
= 0;
1967 struct qed_dev_eth_info
*dev_info
;
1968 struct qede_vlan
*vlan
= NULL
;
1970 if (list_empty(&edev
->vlan_list
))
1973 dev_info
= &edev
->dev_info
;
1975 /* Configure non-configured vlans */
1976 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
1977 if (vlan
->configured
)
1980 /* We have used all our credits, now enable accept_any_vlan */
1981 if ((vlan
->vid
!= 0) &&
1982 (edev
->configured_vlans
== dev_info
->num_vlan_filters
)) {
1983 accept_any_vlan
= 1;
1987 DP_VERBOSE(edev
, NETIF_MSG_IFUP
, "Adding vlan %d\n", vlan
->vid
);
1989 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_ADD
,
1992 DP_ERR(edev
, "Failed to configure VLAN %u\n",
1998 vlan
->configured
= true;
1999 /* vlan0 filter doesn't consume our VLAN filter's quota */
2000 if (vlan
->vid
!= 0) {
2001 edev
->non_configured_vlans
--;
2002 edev
->configured_vlans
++;
2006 /* enable accept_any_vlan mode if we have more VLANs than credits,
2007 * or remove accept_any_vlan mode if we've actually removed
2008 * a non-configured vlan, and all remaining vlans are truly configured.
2011 if (accept_any_vlan
)
2012 qede_config_accept_any_vlan(edev
, true);
2013 else if (!edev
->non_configured_vlans
)
2014 qede_config_accept_any_vlan(edev
, false);
2019 static int qede_vlan_rx_kill_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
2021 struct qede_dev
*edev
= netdev_priv(dev
);
2022 struct qede_vlan
*vlan
= NULL
;
2025 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
, "Removing vlan 0x%04x\n", vid
);
2027 /* Find whether entry exists */
2028 list_for_each_entry(vlan
, &edev
->vlan_list
, list
)
2029 if (vlan
->vid
== vid
)
2032 if (!vlan
|| (vlan
->vid
!= vid
)) {
2033 DP_VERBOSE(edev
, (NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
),
2034 "Vlan isn't configured\n");
2038 if (edev
->state
!= QEDE_STATE_OPEN
) {
2039 /* As interface is already down, we don't have a VPORT
2040 * instance to remove vlan filter. So just update vlan list
2042 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
2043 "Interface is down, removing VLAN from list only\n");
2044 qede_del_vlan_from_list(edev
, vlan
);
2049 rc
= qede_set_ucast_rx_vlan(edev
, QED_FILTER_XCAST_TYPE_DEL
, vid
);
2051 DP_ERR(edev
, "Failed to remove VLAN %d\n", vid
);
2055 qede_del_vlan_from_list(edev
, vlan
);
2057 /* We have removed a VLAN - try to see if we can
2058 * configure non-configured VLAN from the list.
2060 rc
= qede_configure_vlan_filters(edev
);
2065 static void qede_vlan_mark_nonconfigured(struct qede_dev
*edev
)
2067 struct qede_vlan
*vlan
= NULL
;
2069 if (list_empty(&edev
->vlan_list
))
2072 list_for_each_entry(vlan
, &edev
->vlan_list
, list
) {
2073 if (!vlan
->configured
)
2076 vlan
->configured
= false;
2078 /* vlan0 filter isn't consuming out of our quota */
2079 if (vlan
->vid
!= 0) {
2080 edev
->non_configured_vlans
++;
2081 edev
->configured_vlans
--;
2084 DP_VERBOSE(edev
, NETIF_MSG_IFDOWN
,
2085 "marked vlan %d as non-configured\n",
2089 edev
->accept_any_vlan
= false;
2092 int qede_set_features(struct net_device
*dev
, netdev_features_t features
)
2094 struct qede_dev
*edev
= netdev_priv(dev
);
2095 netdev_features_t changes
= features
^ dev
->features
;
2096 bool need_reload
= false;
2098 /* No action needed if hardware GRO is disabled during driver load */
2099 if (changes
& NETIF_F_GRO
) {
2100 if (dev
->features
& NETIF_F_GRO
)
2101 need_reload
= !edev
->gro_disable
;
2103 need_reload
= edev
->gro_disable
;
2106 if (need_reload
&& netif_running(edev
->ndev
)) {
2107 dev
->features
= features
;
2108 qede_reload(edev
, NULL
, NULL
);
2115 #ifdef CONFIG_QEDE_VXLAN
2116 static void qede_add_vxlan_port(struct net_device
*dev
,
2117 sa_family_t sa_family
, __be16 port
)
2119 struct qede_dev
*edev
= netdev_priv(dev
);
2120 u16 t_port
= ntohs(port
);
2122 if (edev
->vxlan_dst_port
)
2125 edev
->vxlan_dst_port
= t_port
;
2127 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added vxlan port=%d", t_port
);
2129 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
2130 schedule_delayed_work(&edev
->sp_task
, 0);
2133 static void qede_del_vxlan_port(struct net_device
*dev
,
2134 sa_family_t sa_family
, __be16 port
)
2136 struct qede_dev
*edev
= netdev_priv(dev
);
2137 u16 t_port
= ntohs(port
);
2139 if (t_port
!= edev
->vxlan_dst_port
)
2142 edev
->vxlan_dst_port
= 0;
2144 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted vxlan port=%d", t_port
);
2146 set_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
);
2147 schedule_delayed_work(&edev
->sp_task
, 0);
2151 #ifdef CONFIG_QEDE_GENEVE
2152 static void qede_add_geneve_port(struct net_device
*dev
,
2153 sa_family_t sa_family
, __be16 port
)
2155 struct qede_dev
*edev
= netdev_priv(dev
);
2156 u16 t_port
= ntohs(port
);
2158 if (edev
->geneve_dst_port
)
2161 edev
->geneve_dst_port
= t_port
;
2163 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Added geneve port=%d", t_port
);
2164 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
2165 schedule_delayed_work(&edev
->sp_task
, 0);
2168 static void qede_del_geneve_port(struct net_device
*dev
,
2169 sa_family_t sa_family
, __be16 port
)
2171 struct qede_dev
*edev
= netdev_priv(dev
);
2172 u16 t_port
= ntohs(port
);
2174 if (t_port
!= edev
->geneve_dst_port
)
2177 edev
->geneve_dst_port
= 0;
2179 DP_VERBOSE(edev
, QED_MSG_DEBUG
, "Deleted geneve port=%d", t_port
);
2180 set_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
);
2181 schedule_delayed_work(&edev
->sp_task
, 0);
2185 static const struct net_device_ops qede_netdev_ops
= {
2186 .ndo_open
= qede_open
,
2187 .ndo_stop
= qede_close
,
2188 .ndo_start_xmit
= qede_start_xmit
,
2189 .ndo_set_rx_mode
= qede_set_rx_mode
,
2190 .ndo_set_mac_address
= qede_set_mac_addr
,
2191 .ndo_validate_addr
= eth_validate_addr
,
2192 .ndo_change_mtu
= qede_change_mtu
,
2193 #ifdef CONFIG_QED_SRIOV
2194 .ndo_set_vf_mac
= qede_set_vf_mac
,
2195 .ndo_set_vf_vlan
= qede_set_vf_vlan
,
2197 .ndo_vlan_rx_add_vid
= qede_vlan_rx_add_vid
,
2198 .ndo_vlan_rx_kill_vid
= qede_vlan_rx_kill_vid
,
2199 .ndo_set_features
= qede_set_features
,
2200 .ndo_get_stats64
= qede_get_stats64
,
2201 #ifdef CONFIG_QED_SRIOV
2202 .ndo_set_vf_link_state
= qede_set_vf_link_state
,
2203 .ndo_set_vf_spoofchk
= qede_set_vf_spoofchk
,
2204 .ndo_get_vf_config
= qede_get_vf_config
,
2205 .ndo_set_vf_rate
= qede_set_vf_rate
,
2207 #ifdef CONFIG_QEDE_VXLAN
2208 .ndo_add_vxlan_port
= qede_add_vxlan_port
,
2209 .ndo_del_vxlan_port
= qede_del_vxlan_port
,
2211 #ifdef CONFIG_QEDE_GENEVE
2212 .ndo_add_geneve_port
= qede_add_geneve_port
,
2213 .ndo_del_geneve_port
= qede_del_geneve_port
,
2217 /* -------------------------------------------------------------------------
2218 * START OF PROBE / REMOVE
2219 * -------------------------------------------------------------------------
2222 static struct qede_dev
*qede_alloc_etherdev(struct qed_dev
*cdev
,
2223 struct pci_dev
*pdev
,
2224 struct qed_dev_eth_info
*info
,
2228 struct net_device
*ndev
;
2229 struct qede_dev
*edev
;
2231 ndev
= alloc_etherdev_mqs(sizeof(*edev
),
2235 pr_err("etherdev allocation failed\n");
2239 edev
= netdev_priv(ndev
);
2243 edev
->dp_module
= dp_module
;
2244 edev
->dp_level
= dp_level
;
2245 edev
->ops
= qed_ops
;
2246 edev
->q_num_rx_buffers
= NUM_RX_BDS_DEF
;
2247 edev
->q_num_tx_buffers
= NUM_TX_BDS_DEF
;
2249 SET_NETDEV_DEV(ndev
, &pdev
->dev
);
2251 memset(&edev
->stats
, 0, sizeof(edev
->stats
));
2252 memcpy(&edev
->dev_info
, info
, sizeof(*info
));
2254 edev
->num_tc
= edev
->dev_info
.num_tc
;
2256 INIT_LIST_HEAD(&edev
->vlan_list
);
2261 static void qede_init_ndev(struct qede_dev
*edev
)
2263 struct net_device
*ndev
= edev
->ndev
;
2264 struct pci_dev
*pdev
= edev
->pdev
;
2267 pci_set_drvdata(pdev
, ndev
);
2269 ndev
->mem_start
= edev
->dev_info
.common
.pci_mem_start
;
2270 ndev
->base_addr
= ndev
->mem_start
;
2271 ndev
->mem_end
= edev
->dev_info
.common
.pci_mem_end
;
2272 ndev
->irq
= edev
->dev_info
.common
.pci_irq
;
2274 ndev
->watchdog_timeo
= TX_TIMEOUT
;
2276 ndev
->netdev_ops
= &qede_netdev_ops
;
2278 qede_set_ethtool_ops(ndev
);
2280 /* user-changeble features */
2281 hw_features
= NETIF_F_GRO
| NETIF_F_SG
|
2282 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2283 NETIF_F_TSO
| NETIF_F_TSO6
;
2286 hw_features
|= NETIF_F_GSO_GRE
| NETIF_F_GSO_UDP_TUNNEL
|
2288 ndev
->hw_enc_features
= NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
2289 NETIF_F_SG
| NETIF_F_TSO
| NETIF_F_TSO_ECN
|
2290 NETIF_F_TSO6
| NETIF_F_GSO_GRE
|
2291 NETIF_F_GSO_UDP_TUNNEL
| NETIF_F_RXCSUM
;
2293 ndev
->vlan_features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
2295 ndev
->features
= hw_features
| NETIF_F_RXHASH
| NETIF_F_RXCSUM
|
2296 NETIF_F_HW_VLAN_CTAG_RX
| NETIF_F_HIGHDMA
|
2297 NETIF_F_HW_VLAN_CTAG_FILTER
| NETIF_F_HW_VLAN_CTAG_TX
;
2299 ndev
->hw_features
= hw_features
;
2301 /* Set network device HW mac */
2302 ether_addr_copy(edev
->ndev
->dev_addr
, edev
->dev_info
.common
.hw_mac
);
2305 /* This function converts from 32b param to two params of level and module
2306 * Input 32b decoding:
2307 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
2308 * 'happy' flow, e.g. memory allocation failed.
2309 * b30 - enable all INFO prints. INFO prints are for major steps in the flow
2310 * and provide important parameters.
2311 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
2312 * module. VERBOSE prints are for tracking the specific flow in low level.
2314 * Notice that the level should be that of the lowest required logs.
2316 void qede_config_debug(uint debug
, u32
*p_dp_module
, u8
*p_dp_level
)
2318 *p_dp_level
= QED_LEVEL_NOTICE
;
2321 if (debug
& QED_LOG_VERBOSE_MASK
) {
2322 *p_dp_level
= QED_LEVEL_VERBOSE
;
2323 *p_dp_module
= (debug
& 0x3FFFFFFF);
2324 } else if (debug
& QED_LOG_INFO_MASK
) {
2325 *p_dp_level
= QED_LEVEL_INFO
;
2326 } else if (debug
& QED_LOG_NOTICE_MASK
) {
2327 *p_dp_level
= QED_LEVEL_NOTICE
;
2331 static void qede_free_fp_array(struct qede_dev
*edev
)
2333 if (edev
->fp_array
) {
2334 struct qede_fastpath
*fp
;
2338 fp
= &edev
->fp_array
[i
];
2344 kfree(edev
->fp_array
);
2349 static int qede_alloc_fp_array(struct qede_dev
*edev
)
2351 struct qede_fastpath
*fp
;
2354 edev
->fp_array
= kcalloc(QEDE_RSS_CNT(edev
),
2355 sizeof(*edev
->fp_array
), GFP_KERNEL
);
2356 if (!edev
->fp_array
) {
2357 DP_NOTICE(edev
, "fp array allocation failed\n");
2362 fp
= &edev
->fp_array
[i
];
2364 fp
->sb_info
= kcalloc(1, sizeof(*fp
->sb_info
), GFP_KERNEL
);
2366 DP_NOTICE(edev
, "sb info struct allocation failed\n");
2370 fp
->rxq
= kcalloc(1, sizeof(*fp
->rxq
), GFP_KERNEL
);
2372 DP_NOTICE(edev
, "RXQ struct allocation failed\n");
2376 fp
->txqs
= kcalloc(edev
->num_tc
, sizeof(*fp
->txqs
), GFP_KERNEL
);
2378 DP_NOTICE(edev
, "TXQ array allocation failed\n");
2385 qede_free_fp_array(edev
);
2389 static void qede_sp_task(struct work_struct
*work
)
2391 struct qede_dev
*edev
= container_of(work
, struct qede_dev
,
2393 struct qed_dev
*cdev
= edev
->cdev
;
2395 mutex_lock(&edev
->qede_lock
);
2397 if (edev
->state
== QEDE_STATE_OPEN
) {
2398 if (test_and_clear_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
))
2399 qede_config_rx_mode(edev
->ndev
);
2402 if (test_and_clear_bit(QEDE_SP_VXLAN_PORT_CONFIG
, &edev
->sp_flags
)) {
2403 struct qed_tunn_params tunn_params
;
2405 memset(&tunn_params
, 0, sizeof(tunn_params
));
2406 tunn_params
.update_vxlan_port
= 1;
2407 tunn_params
.vxlan_port
= edev
->vxlan_dst_port
;
2408 qed_ops
->tunn_config(cdev
, &tunn_params
);
2411 if (test_and_clear_bit(QEDE_SP_GENEVE_PORT_CONFIG
, &edev
->sp_flags
)) {
2412 struct qed_tunn_params tunn_params
;
2414 memset(&tunn_params
, 0, sizeof(tunn_params
));
2415 tunn_params
.update_geneve_port
= 1;
2416 tunn_params
.geneve_port
= edev
->geneve_dst_port
;
2417 qed_ops
->tunn_config(cdev
, &tunn_params
);
2420 mutex_unlock(&edev
->qede_lock
);
2423 static void qede_update_pf_params(struct qed_dev
*cdev
)
2425 struct qed_pf_params pf_params
;
2428 memset(&pf_params
, 0, sizeof(struct qed_pf_params
));
2429 pf_params
.eth_pf_params
.num_cons
= 128;
2430 qed_ops
->common
->update_pf_params(cdev
, &pf_params
);
2433 enum qede_probe_mode
{
2437 static int __qede_probe(struct pci_dev
*pdev
, u32 dp_module
, u8 dp_level
,
2438 bool is_vf
, enum qede_probe_mode mode
)
2440 struct qed_probe_params probe_params
;
2441 struct qed_slowpath_params params
;
2442 struct qed_dev_eth_info dev_info
;
2443 struct qede_dev
*edev
;
2444 struct qed_dev
*cdev
;
2447 if (unlikely(dp_level
& QED_LEVEL_INFO
))
2448 pr_notice("Starting qede probe\n");
2450 memset(&probe_params
, 0, sizeof(probe_params
));
2451 probe_params
.protocol
= QED_PROTOCOL_ETH
;
2452 probe_params
.dp_module
= dp_module
;
2453 probe_params
.dp_level
= dp_level
;
2454 probe_params
.is_vf
= is_vf
;
2455 cdev
= qed_ops
->common
->probe(pdev
, &probe_params
);
2461 qede_update_pf_params(cdev
);
2463 /* Start the Slowpath-process */
2464 memset(¶ms
, 0, sizeof(struct qed_slowpath_params
));
2465 params
.int_mode
= QED_INT_MODE_MSIX
;
2466 params
.drv_major
= QEDE_MAJOR_VERSION
;
2467 params
.drv_minor
= QEDE_MINOR_VERSION
;
2468 params
.drv_rev
= QEDE_REVISION_VERSION
;
2469 params
.drv_eng
= QEDE_ENGINEERING_VERSION
;
2470 strlcpy(params
.name
, "qede LAN", QED_DRV_VER_STR_SIZE
);
2471 rc
= qed_ops
->common
->slowpath_start(cdev
, ¶ms
);
2473 pr_notice("Cannot start slowpath\n");
2477 /* Learn information crucial for qede to progress */
2478 rc
= qed_ops
->fill_dev_info(cdev
, &dev_info
);
2482 edev
= qede_alloc_etherdev(cdev
, pdev
, &dev_info
, dp_module
,
2490 edev
->flags
|= QEDE_FLAG_IS_VF
;
2492 qede_init_ndev(edev
);
2494 rc
= register_netdev(edev
->ndev
);
2496 DP_NOTICE(edev
, "Cannot register net-device\n");
2500 edev
->ops
->common
->set_id(cdev
, edev
->ndev
->name
, DRV_MODULE_VERSION
);
2502 edev
->ops
->register_ops(cdev
, &qede_ll_ops
, edev
);
2505 qede_set_dcbnl_ops(edev
->ndev
);
2508 INIT_DELAYED_WORK(&edev
->sp_task
, qede_sp_task
);
2509 mutex_init(&edev
->qede_lock
);
2511 DP_INFO(edev
, "Ending successfully qede probe\n");
2516 free_netdev(edev
->ndev
);
2518 qed_ops
->common
->slowpath_stop(cdev
);
2520 qed_ops
->common
->remove(cdev
);
2525 static int qede_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
2531 switch ((enum qede_pci_private
)id
->driver_data
) {
2532 case QEDE_PRIVATE_VF
:
2533 if (debug
& QED_LOG_VERBOSE_MASK
)
2534 dev_err(&pdev
->dev
, "Probing a VF\n");
2538 if (debug
& QED_LOG_VERBOSE_MASK
)
2539 dev_err(&pdev
->dev
, "Probing a PF\n");
2542 qede_config_debug(debug
, &dp_module
, &dp_level
);
2544 return __qede_probe(pdev
, dp_module
, dp_level
, is_vf
,
2548 enum qede_remove_mode
{
2552 static void __qede_remove(struct pci_dev
*pdev
, enum qede_remove_mode mode
)
2554 struct net_device
*ndev
= pci_get_drvdata(pdev
);
2555 struct qede_dev
*edev
= netdev_priv(ndev
);
2556 struct qed_dev
*cdev
= edev
->cdev
;
2558 DP_INFO(edev
, "Starting qede_remove\n");
2560 cancel_delayed_work_sync(&edev
->sp_task
);
2561 unregister_netdev(ndev
);
2563 edev
->ops
->common
->set_power_state(cdev
, PCI_D0
);
2565 pci_set_drvdata(pdev
, NULL
);
2569 /* Use global ops since we've freed edev */
2570 qed_ops
->common
->slowpath_stop(cdev
);
2571 qed_ops
->common
->remove(cdev
);
2573 pr_notice("Ending successfully qede_remove\n");
2576 static void qede_remove(struct pci_dev
*pdev
)
2578 __qede_remove(pdev
, QEDE_REMOVE_NORMAL
);
2581 /* -------------------------------------------------------------------------
2582 * START OF LOAD / UNLOAD
2583 * -------------------------------------------------------------------------
2586 static int qede_set_num_queues(struct qede_dev
*edev
)
2591 /* Setup queues according to possible resources*/
2593 rss_num
= edev
->req_rss
;
2595 rss_num
= netif_get_num_default_rss_queues() *
2596 edev
->dev_info
.common
.num_hwfns
;
2598 rss_num
= min_t(u16
, QEDE_MAX_RSS_CNT(edev
), rss_num
);
2600 rc
= edev
->ops
->common
->set_fp_int(edev
->cdev
, rss_num
);
2602 /* Managed to request interrupts for our queues */
2604 DP_INFO(edev
, "Managed %d [of %d] RSS queues\n",
2605 QEDE_RSS_CNT(edev
), rss_num
);
2611 static void qede_free_mem_sb(struct qede_dev
*edev
,
2612 struct qed_sb_info
*sb_info
)
2614 if (sb_info
->sb_virt
)
2615 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_info
->sb_virt
),
2616 (void *)sb_info
->sb_virt
, sb_info
->sb_phys
);
2619 /* This function allocates fast-path status block memory */
2620 static int qede_alloc_mem_sb(struct qede_dev
*edev
,
2621 struct qed_sb_info
*sb_info
,
2624 struct status_block
*sb_virt
;
2628 sb_virt
= dma_alloc_coherent(&edev
->pdev
->dev
,
2630 &sb_phys
, GFP_KERNEL
);
2632 DP_ERR(edev
, "Status block allocation failed\n");
2636 rc
= edev
->ops
->common
->sb_init(edev
->cdev
, sb_info
,
2637 sb_virt
, sb_phys
, sb_id
,
2638 QED_SB_TYPE_L2_QUEUE
);
2640 DP_ERR(edev
, "Status block initialization failed\n");
2641 dma_free_coherent(&edev
->pdev
->dev
, sizeof(*sb_virt
),
2649 static void qede_free_rx_buffers(struct qede_dev
*edev
,
2650 struct qede_rx_queue
*rxq
)
2654 for (i
= rxq
->sw_rx_cons
; i
!= rxq
->sw_rx_prod
; i
++) {
2655 struct sw_rx_data
*rx_buf
;
2658 rx_buf
= &rxq
->sw_rx_ring
[i
& NUM_RX_BDS_MAX
];
2659 data
= rx_buf
->data
;
2661 dma_unmap_page(&edev
->pdev
->dev
,
2663 PAGE_SIZE
, DMA_FROM_DEVICE
);
2665 rx_buf
->data
= NULL
;
2670 static void qede_free_sge_mem(struct qede_dev
*edev
,
2671 struct qede_rx_queue
*rxq
) {
2674 if (edev
->gro_disable
)
2677 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2678 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2679 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2681 if (replace_buf
->data
) {
2682 dma_unmap_page(&edev
->pdev
->dev
,
2683 replace_buf
->mapping
,
2684 PAGE_SIZE
, DMA_FROM_DEVICE
);
2685 __free_page(replace_buf
->data
);
2690 static void qede_free_mem_rxq(struct qede_dev
*edev
,
2691 struct qede_rx_queue
*rxq
)
2693 qede_free_sge_mem(edev
, rxq
);
2695 /* Free rx buffers */
2696 qede_free_rx_buffers(edev
, rxq
);
2698 /* Free the parallel SW ring */
2699 kfree(rxq
->sw_rx_ring
);
2701 /* Free the real RQ ring used by FW */
2702 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_bd_ring
);
2703 edev
->ops
->common
->chain_free(edev
->cdev
, &rxq
->rx_comp_ring
);
2706 static int qede_alloc_rx_buffer(struct qede_dev
*edev
,
2707 struct qede_rx_queue
*rxq
)
2709 struct sw_rx_data
*sw_rx_data
;
2710 struct eth_rx_bd
*rx_bd
;
2715 rx_buf_size
= rxq
->rx_buf_size
;
2717 data
= alloc_pages(GFP_ATOMIC
, 0);
2718 if (unlikely(!data
)) {
2719 DP_NOTICE(edev
, "Failed to allocate Rx data [page]\n");
2723 /* Map the entire page as it would be used
2724 * for multiple RX buffer segment size mapping.
2726 mapping
= dma_map_page(&edev
->pdev
->dev
, data
, 0,
2727 PAGE_SIZE
, DMA_FROM_DEVICE
);
2728 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2730 DP_NOTICE(edev
, "Failed to map Rx buffer\n");
2734 sw_rx_data
= &rxq
->sw_rx_ring
[rxq
->sw_rx_prod
& NUM_RX_BDS_MAX
];
2735 sw_rx_data
->page_offset
= 0;
2736 sw_rx_data
->data
= data
;
2737 sw_rx_data
->mapping
= mapping
;
2739 /* Advance PROD and get BD pointer */
2740 rx_bd
= (struct eth_rx_bd
*)qed_chain_produce(&rxq
->rx_bd_ring
);
2742 rx_bd
->addr
.hi
= cpu_to_le32(upper_32_bits(mapping
));
2743 rx_bd
->addr
.lo
= cpu_to_le32(lower_32_bits(mapping
));
2750 static int qede_alloc_sge_mem(struct qede_dev
*edev
,
2751 struct qede_rx_queue
*rxq
)
2756 if (edev
->gro_disable
)
2759 if (edev
->ndev
->mtu
> PAGE_SIZE
) {
2760 edev
->gro_disable
= 1;
2764 for (i
= 0; i
< ETH_TPA_MAX_AGGS_NUM
; i
++) {
2765 struct qede_agg_info
*tpa_info
= &rxq
->tpa_info
[i
];
2766 struct sw_rx_data
*replace_buf
= &tpa_info
->replace_buf
;
2768 replace_buf
->data
= alloc_pages(GFP_ATOMIC
, 0);
2769 if (unlikely(!replace_buf
->data
)) {
2771 "Failed to allocate TPA skb pool [replacement buffer]\n");
2775 mapping
= dma_map_page(&edev
->pdev
->dev
, replace_buf
->data
, 0,
2776 rxq
->rx_buf_size
, DMA_FROM_DEVICE
);
2777 if (unlikely(dma_mapping_error(&edev
->pdev
->dev
, mapping
))) {
2779 "Failed to map TPA replacement buffer\n");
2783 replace_buf
->mapping
= mapping
;
2784 tpa_info
->replace_buf
.page_offset
= 0;
2786 tpa_info
->replace_buf_mapping
= mapping
;
2787 tpa_info
->agg_state
= QEDE_AGG_STATE_NONE
;
2792 qede_free_sge_mem(edev
, rxq
);
2793 edev
->gro_disable
= 1;
2797 /* This function allocates all memory needed per Rx queue */
2798 static int qede_alloc_mem_rxq(struct qede_dev
*edev
,
2799 struct qede_rx_queue
*rxq
)
2803 rxq
->num_rx_buffers
= edev
->q_num_rx_buffers
;
2805 rxq
->rx_buf_size
= NET_IP_ALIGN
+ ETH_OVERHEAD
+
2807 if (rxq
->rx_buf_size
> PAGE_SIZE
)
2808 rxq
->rx_buf_size
= PAGE_SIZE
;
2810 /* Segment size to spilt a page in multiple equal parts */
2811 rxq
->rx_buf_seg_size
= roundup_pow_of_two(rxq
->rx_buf_size
);
2813 /* Allocate the parallel driver ring for Rx buffers */
2814 size
= sizeof(*rxq
->sw_rx_ring
) * RX_RING_SIZE
;
2815 rxq
->sw_rx_ring
= kzalloc(size
, GFP_KERNEL
);
2816 if (!rxq
->sw_rx_ring
) {
2817 DP_ERR(edev
, "Rx buffers ring allocation failed\n");
2822 /* Allocate FW Rx ring */
2823 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2824 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2825 QED_CHAIN_MODE_NEXT_PTR
,
2826 QED_CHAIN_CNT_TYPE_U16
,
2828 sizeof(struct eth_rx_bd
),
2834 /* Allocate FW completion ring */
2835 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2836 QED_CHAIN_USE_TO_CONSUME
,
2838 QED_CHAIN_CNT_TYPE_U16
,
2840 sizeof(union eth_rx_cqe
),
2841 &rxq
->rx_comp_ring
);
2845 /* Allocate buffers for the Rx ring */
2846 for (i
= 0; i
< rxq
->num_rx_buffers
; i
++) {
2847 rc
= qede_alloc_rx_buffer(edev
, rxq
);
2850 "Rx buffers allocation failed at index %d\n", i
);
2855 rc
= qede_alloc_sge_mem(edev
, rxq
);
2860 static void qede_free_mem_txq(struct qede_dev
*edev
,
2861 struct qede_tx_queue
*txq
)
2863 /* Free the parallel SW ring */
2864 kfree(txq
->sw_tx_ring
);
2866 /* Free the real RQ ring used by FW */
2867 edev
->ops
->common
->chain_free(edev
->cdev
, &txq
->tx_pbl
);
2870 /* This function allocates all memory needed per Tx queue */
2871 static int qede_alloc_mem_txq(struct qede_dev
*edev
,
2872 struct qede_tx_queue
*txq
)
2875 union eth_tx_bd_types
*p_virt
;
2877 txq
->num_tx_buffers
= edev
->q_num_tx_buffers
;
2879 /* Allocate the parallel driver ring for Tx buffers */
2880 size
= sizeof(*txq
->sw_tx_ring
) * NUM_TX_BDS_MAX
;
2881 txq
->sw_tx_ring
= kzalloc(size
, GFP_KERNEL
);
2882 if (!txq
->sw_tx_ring
) {
2883 DP_NOTICE(edev
, "Tx buffers ring allocation failed\n");
2887 rc
= edev
->ops
->common
->chain_alloc(edev
->cdev
,
2888 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
2890 QED_CHAIN_CNT_TYPE_U16
,
2892 sizeof(*p_virt
), &txq
->tx_pbl
);
2899 qede_free_mem_txq(edev
, txq
);
2903 /* This function frees all memory of a single fp */
2904 static void qede_free_mem_fp(struct qede_dev
*edev
,
2905 struct qede_fastpath
*fp
)
2909 qede_free_mem_sb(edev
, fp
->sb_info
);
2911 qede_free_mem_rxq(edev
, fp
->rxq
);
2913 for (tc
= 0; tc
< edev
->num_tc
; tc
++)
2914 qede_free_mem_txq(edev
, &fp
->txqs
[tc
]);
2917 /* This function allocates all memory needed for a single fp (i.e. an entity
2918 * which contains status block, one rx queue and multiple per-TC tx queues.
2920 static int qede_alloc_mem_fp(struct qede_dev
*edev
,
2921 struct qede_fastpath
*fp
)
2925 rc
= qede_alloc_mem_sb(edev
, fp
->sb_info
, fp
->rss_id
);
2929 rc
= qede_alloc_mem_rxq(edev
, fp
->rxq
);
2933 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2934 rc
= qede_alloc_mem_txq(edev
, &fp
->txqs
[tc
]);
2944 static void qede_free_mem_load(struct qede_dev
*edev
)
2949 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
2951 qede_free_mem_fp(edev
, fp
);
2955 /* This function allocates all qede memory at NIC load. */
2956 static int qede_alloc_mem_load(struct qede_dev
*edev
)
2960 for (rss_id
= 0; rss_id
< QEDE_RSS_CNT(edev
); rss_id
++) {
2961 struct qede_fastpath
*fp
= &edev
->fp_array
[rss_id
];
2963 rc
= qede_alloc_mem_fp(edev
, fp
);
2966 "Failed to allocate memory for fastpath - rss id = %d\n",
2968 qede_free_mem_load(edev
);
2976 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
2977 static void qede_init_fp(struct qede_dev
*edev
)
2979 int rss_id
, txq_index
, tc
;
2980 struct qede_fastpath
*fp
;
2982 for_each_rss(rss_id
) {
2983 fp
= &edev
->fp_array
[rss_id
];
2986 fp
->rss_id
= rss_id
;
2988 memset((void *)&fp
->napi
, 0, sizeof(fp
->napi
));
2990 memset((void *)fp
->sb_info
, 0, sizeof(*fp
->sb_info
));
2992 memset((void *)fp
->rxq
, 0, sizeof(*fp
->rxq
));
2993 fp
->rxq
->rxq_id
= rss_id
;
2995 memset((void *)fp
->txqs
, 0, (edev
->num_tc
* sizeof(*fp
->txqs
)));
2996 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
2997 txq_index
= tc
* QEDE_RSS_CNT(edev
) + rss_id
;
2998 fp
->txqs
[tc
].index
= txq_index
;
3001 snprintf(fp
->name
, sizeof(fp
->name
), "%s-fp-%d",
3002 edev
->ndev
->name
, rss_id
);
3005 edev
->gro_disable
= !(edev
->ndev
->features
& NETIF_F_GRO
);
3008 static int qede_set_real_num_queues(struct qede_dev
*edev
)
3012 rc
= netif_set_real_num_tx_queues(edev
->ndev
, QEDE_TSS_CNT(edev
));
3014 DP_NOTICE(edev
, "Failed to set real number of Tx queues\n");
3017 rc
= netif_set_real_num_rx_queues(edev
->ndev
, QEDE_RSS_CNT(edev
));
3019 DP_NOTICE(edev
, "Failed to set real number of Rx queues\n");
3026 static void qede_napi_disable_remove(struct qede_dev
*edev
)
3031 napi_disable(&edev
->fp_array
[i
].napi
);
3033 netif_napi_del(&edev
->fp_array
[i
].napi
);
3037 static void qede_napi_add_enable(struct qede_dev
*edev
)
3041 /* Add NAPI objects */
3043 netif_napi_add(edev
->ndev
, &edev
->fp_array
[i
].napi
,
3044 qede_poll
, NAPI_POLL_WEIGHT
);
3045 napi_enable(&edev
->fp_array
[i
].napi
);
3049 static void qede_sync_free_irqs(struct qede_dev
*edev
)
3053 for (i
= 0; i
< edev
->int_info
.used_cnt
; i
++) {
3054 if (edev
->int_info
.msix_cnt
) {
3055 synchronize_irq(edev
->int_info
.msix
[i
].vector
);
3056 free_irq(edev
->int_info
.msix
[i
].vector
,
3057 &edev
->fp_array
[i
]);
3059 edev
->ops
->common
->simd_handler_clean(edev
->cdev
, i
);
3063 edev
->int_info
.used_cnt
= 0;
3066 static int qede_req_msix_irqs(struct qede_dev
*edev
)
3070 /* Sanitize number of interrupts == number of prepared RSS queues */
3071 if (QEDE_RSS_CNT(edev
) > edev
->int_info
.msix_cnt
) {
3073 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
3074 QEDE_RSS_CNT(edev
), edev
->int_info
.msix_cnt
);
3078 for (i
= 0; i
< QEDE_RSS_CNT(edev
); i
++) {
3079 rc
= request_irq(edev
->int_info
.msix
[i
].vector
,
3080 qede_msix_fp_int
, 0, edev
->fp_array
[i
].name
,
3081 &edev
->fp_array
[i
]);
3083 DP_ERR(edev
, "Request fp %d irq failed\n", i
);
3084 qede_sync_free_irqs(edev
);
3087 DP_VERBOSE(edev
, NETIF_MSG_INTR
,
3088 "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
3089 edev
->fp_array
[i
].name
, i
,
3090 &edev
->fp_array
[i
]);
3091 edev
->int_info
.used_cnt
++;
3097 static void qede_simd_fp_handler(void *cookie
)
3099 struct qede_fastpath
*fp
= (struct qede_fastpath
*)cookie
;
3101 napi_schedule_irqoff(&fp
->napi
);
3104 static int qede_setup_irqs(struct qede_dev
*edev
)
3108 /* Learn Interrupt configuration */
3109 rc
= edev
->ops
->common
->get_fp_int(edev
->cdev
, &edev
->int_info
);
3113 if (edev
->int_info
.msix_cnt
) {
3114 rc
= qede_req_msix_irqs(edev
);
3117 edev
->ndev
->irq
= edev
->int_info
.msix
[0].vector
;
3119 const struct qed_common_ops
*ops
;
3121 /* qed should learn receive the RSS ids and callbacks */
3122 ops
= edev
->ops
->common
;
3123 for (i
= 0; i
< QEDE_RSS_CNT(edev
); i
++)
3124 ops
->simd_handler_config(edev
->cdev
,
3125 &edev
->fp_array
[i
], i
,
3126 qede_simd_fp_handler
);
3127 edev
->int_info
.used_cnt
= QEDE_RSS_CNT(edev
);
3132 static int qede_drain_txq(struct qede_dev
*edev
,
3133 struct qede_tx_queue
*txq
,
3138 while (txq
->sw_tx_cons
!= txq
->sw_tx_prod
) {
3142 "Tx queue[%d] is stuck, requesting MCP to drain\n",
3144 rc
= edev
->ops
->common
->drain(edev
->cdev
);
3147 return qede_drain_txq(edev
, txq
, false);
3150 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
3151 txq
->index
, txq
->sw_tx_prod
,
3156 usleep_range(1000, 2000);
3160 /* FW finished processing, wait for HW to transmit all tx packets */
3161 usleep_range(1000, 2000);
3166 static int qede_stop_queues(struct qede_dev
*edev
)
3168 struct qed_update_vport_params vport_update_params
;
3169 struct qed_dev
*cdev
= edev
->cdev
;
3172 /* Disable the vport */
3173 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
3174 vport_update_params
.vport_id
= 0;
3175 vport_update_params
.update_vport_active_flg
= 1;
3176 vport_update_params
.vport_active_flg
= 0;
3177 vport_update_params
.update_rss_flg
= 0;
3179 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
3181 DP_ERR(edev
, "Failed to update vport\n");
3185 /* Flush Tx queues. If needed, request drain from MCP */
3187 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
3189 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3190 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
3192 rc
= qede_drain_txq(edev
, txq
, true);
3198 /* Stop all Queues in reverse order*/
3199 for (i
= QEDE_RSS_CNT(edev
) - 1; i
>= 0; i
--) {
3200 struct qed_stop_rxq_params rx_params
;
3202 /* Stop the Tx Queue(s)*/
3203 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3204 struct qed_stop_txq_params tx_params
;
3206 tx_params
.rss_id
= i
;
3207 tx_params
.tx_queue_id
= tc
* QEDE_RSS_CNT(edev
) + i
;
3208 rc
= edev
->ops
->q_tx_stop(cdev
, &tx_params
);
3210 DP_ERR(edev
, "Failed to stop TXQ #%d\n",
3211 tx_params
.tx_queue_id
);
3216 /* Stop the Rx Queue*/
3217 memset(&rx_params
, 0, sizeof(rx_params
));
3218 rx_params
.rss_id
= i
;
3219 rx_params
.rx_queue_id
= i
;
3221 rc
= edev
->ops
->q_rx_stop(cdev
, &rx_params
);
3223 DP_ERR(edev
, "Failed to stop RXQ #%d\n", i
);
3228 /* Stop the vport */
3229 rc
= edev
->ops
->vport_stop(cdev
, 0);
3231 DP_ERR(edev
, "Failed to stop VPORT\n");
3236 static int qede_start_queues(struct qede_dev
*edev
)
3239 int vlan_removal_en
= 1;
3240 struct qed_dev
*cdev
= edev
->cdev
;
3241 struct qed_update_vport_params vport_update_params
;
3242 struct qed_queue_start_common_params q_params
;
3243 struct qed_dev_info
*qed_info
= &edev
->dev_info
.common
;
3244 struct qed_start_vport_params start
= {0};
3245 bool reset_rss_indir
= false;
3247 if (!edev
->num_rss
) {
3249 "Cannot update V-VPORT as active as there are no Rx queues\n");
3253 start
.gro_enable
= !edev
->gro_disable
;
3254 start
.mtu
= edev
->ndev
->mtu
;
3256 start
.drop_ttl0
= true;
3257 start
.remove_inner_vlan
= vlan_removal_en
;
3259 rc
= edev
->ops
->vport_start(cdev
, &start
);
3262 DP_ERR(edev
, "Start V-PORT failed %d\n", rc
);
3266 DP_VERBOSE(edev
, NETIF_MSG_IFUP
,
3267 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
3268 start
.vport_id
, edev
->ndev
->mtu
+ 0xe, vlan_removal_en
);
3271 struct qede_fastpath
*fp
= &edev
->fp_array
[i
];
3272 dma_addr_t phys_table
= fp
->rxq
->rx_comp_ring
.pbl
.p_phys_table
;
3274 memset(&q_params
, 0, sizeof(q_params
));
3275 q_params
.rss_id
= i
;
3276 q_params
.queue_id
= i
;
3277 q_params
.vport_id
= 0;
3278 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
3279 q_params
.sb_idx
= RX_PI
;
3281 rc
= edev
->ops
->q_rx_start(cdev
, &q_params
,
3282 fp
->rxq
->rx_buf_size
,
3283 fp
->rxq
->rx_bd_ring
.p_phys_addr
,
3285 fp
->rxq
->rx_comp_ring
.page_cnt
,
3286 &fp
->rxq
->hw_rxq_prod_addr
);
3288 DP_ERR(edev
, "Start RXQ #%d failed %d\n", i
, rc
);
3292 fp
->rxq
->hw_cons_ptr
= &fp
->sb_info
->sb_virt
->pi_array
[RX_PI
];
3294 qede_update_rx_prod(edev
, fp
->rxq
);
3296 for (tc
= 0; tc
< edev
->num_tc
; tc
++) {
3297 struct qede_tx_queue
*txq
= &fp
->txqs
[tc
];
3298 int txq_index
= tc
* QEDE_RSS_CNT(edev
) + i
;
3300 memset(&q_params
, 0, sizeof(q_params
));
3301 q_params
.rss_id
= i
;
3302 q_params
.queue_id
= txq_index
;
3303 q_params
.vport_id
= 0;
3304 q_params
.sb
= fp
->sb_info
->igu_sb_id
;
3305 q_params
.sb_idx
= TX_PI(tc
);
3307 rc
= edev
->ops
->q_tx_start(cdev
, &q_params
,
3308 txq
->tx_pbl
.pbl
.p_phys_table
,
3309 txq
->tx_pbl
.page_cnt
,
3310 &txq
->doorbell_addr
);
3312 DP_ERR(edev
, "Start TXQ #%d failed %d\n",
3318 &fp
->sb_info
->sb_virt
->pi_array
[TX_PI(tc
)];
3319 SET_FIELD(txq
->tx_db
.data
.params
,
3320 ETH_DB_DATA_DEST
, DB_DEST_XCM
);
3321 SET_FIELD(txq
->tx_db
.data
.params
, ETH_DB_DATA_AGG_CMD
,
3323 SET_FIELD(txq
->tx_db
.data
.params
,
3324 ETH_DB_DATA_AGG_VAL_SEL
,
3325 DQ_XCM_ETH_TX_BD_PROD_CMD
);
3327 txq
->tx_db
.data
.agg_flags
= DQ_XCM_ETH_DQ_CF_CMD
;
3331 /* Prepare and send the vport enable */
3332 memset(&vport_update_params
, 0, sizeof(vport_update_params
));
3333 vport_update_params
.vport_id
= start
.vport_id
;
3334 vport_update_params
.update_vport_active_flg
= 1;
3335 vport_update_params
.vport_active_flg
= 1;
3337 if ((qed_info
->mf_mode
== QED_MF_NPAR
|| pci_num_vf(edev
->pdev
)) &&
3338 qed_info
->tx_switching
) {
3339 vport_update_params
.update_tx_switching_flg
= 1;
3340 vport_update_params
.tx_switching_flg
= 1;
3343 /* Fill struct with RSS params */
3344 if (QEDE_RSS_CNT(edev
) > 1) {
3345 vport_update_params
.update_rss_flg
= 1;
3347 /* Need to validate current RSS config uses valid entries */
3348 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3349 if (edev
->rss_params
.rss_ind_table
[i
] >=
3351 reset_rss_indir
= true;
3356 if (!(edev
->rss_params_inited
& QEDE_RSS_INDIR_INITED
) ||
3360 for (i
= 0; i
< QED_RSS_IND_TABLE_SIZE
; i
++) {
3363 val
= QEDE_RSS_CNT(edev
);
3364 indir_val
= ethtool_rxfh_indir_default(i
, val
);
3365 edev
->rss_params
.rss_ind_table
[i
] = indir_val
;
3367 edev
->rss_params_inited
|= QEDE_RSS_INDIR_INITED
;
3370 if (!(edev
->rss_params_inited
& QEDE_RSS_KEY_INITED
)) {
3371 netdev_rss_key_fill(edev
->rss_params
.rss_key
,
3372 sizeof(edev
->rss_params
.rss_key
));
3373 edev
->rss_params_inited
|= QEDE_RSS_KEY_INITED
;
3376 if (!(edev
->rss_params_inited
& QEDE_RSS_CAPS_INITED
)) {
3377 edev
->rss_params
.rss_caps
= QED_RSS_IPV4
|
3381 edev
->rss_params_inited
|= QEDE_RSS_CAPS_INITED
;
3384 memcpy(&vport_update_params
.rss_params
, &edev
->rss_params
,
3385 sizeof(vport_update_params
.rss_params
));
3387 memset(&vport_update_params
.rss_params
, 0,
3388 sizeof(vport_update_params
.rss_params
));
3391 rc
= edev
->ops
->vport_update(cdev
, &vport_update_params
);
3393 DP_ERR(edev
, "Update V-PORT failed %d\n", rc
);
3400 static int qede_set_mcast_rx_mac(struct qede_dev
*edev
,
3401 enum qed_filter_xcast_params_type opcode
,
3402 unsigned char *mac
, int num_macs
)
3404 struct qed_filter_params filter_cmd
;
3407 memset(&filter_cmd
, 0, sizeof(filter_cmd
));
3408 filter_cmd
.type
= QED_FILTER_TYPE_MCAST
;
3409 filter_cmd
.filter
.mcast
.type
= opcode
;
3410 filter_cmd
.filter
.mcast
.num
= num_macs
;
3412 for (i
= 0; i
< num_macs
; i
++, mac
+= ETH_ALEN
)
3413 ether_addr_copy(filter_cmd
.filter
.mcast
.mac
[i
], mac
);
3415 return edev
->ops
->filter_config(edev
->cdev
, &filter_cmd
);
3418 enum qede_unload_mode
{
3422 static void qede_unload(struct qede_dev
*edev
, enum qede_unload_mode mode
)
3424 struct qed_link_params link_params
;
3427 DP_INFO(edev
, "Starting qede unload\n");
3429 mutex_lock(&edev
->qede_lock
);
3430 edev
->state
= QEDE_STATE_CLOSED
;
3433 netif_tx_disable(edev
->ndev
);
3434 netif_carrier_off(edev
->ndev
);
3436 /* Reset the link */
3437 memset(&link_params
, 0, sizeof(link_params
));
3438 link_params
.link_up
= false;
3439 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3440 rc
= qede_stop_queues(edev
);
3442 qede_sync_free_irqs(edev
);
3446 DP_INFO(edev
, "Stopped Queues\n");
3448 qede_vlan_mark_nonconfigured(edev
);
3449 edev
->ops
->fastpath_stop(edev
->cdev
);
3451 /* Release the interrupts */
3452 qede_sync_free_irqs(edev
);
3453 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3455 qede_napi_disable_remove(edev
);
3457 qede_free_mem_load(edev
);
3458 qede_free_fp_array(edev
);
3461 mutex_unlock(&edev
->qede_lock
);
3462 DP_INFO(edev
, "Ending qede unload\n");
3465 enum qede_load_mode
{
3469 static int qede_load(struct qede_dev
*edev
, enum qede_load_mode mode
)
3471 struct qed_link_params link_params
;
3472 struct qed_link_output link_output
;
3475 DP_INFO(edev
, "Starting qede load\n");
3477 rc
= qede_set_num_queues(edev
);
3481 rc
= qede_alloc_fp_array(edev
);
3487 rc
= qede_alloc_mem_load(edev
);
3490 DP_INFO(edev
, "Allocated %d RSS queues on %d TC/s\n",
3491 QEDE_RSS_CNT(edev
), edev
->num_tc
);
3493 rc
= qede_set_real_num_queues(edev
);
3497 qede_napi_add_enable(edev
);
3498 DP_INFO(edev
, "Napi added and enabled\n");
3500 rc
= qede_setup_irqs(edev
);
3503 DP_INFO(edev
, "Setup IRQs succeeded\n");
3505 rc
= qede_start_queues(edev
);
3508 DP_INFO(edev
, "Start VPORT, RXQ and TXQ succeeded\n");
3510 /* Add primary mac and set Rx filters */
3511 ether_addr_copy(edev
->primary_mac
, edev
->ndev
->dev_addr
);
3513 mutex_lock(&edev
->qede_lock
);
3514 edev
->state
= QEDE_STATE_OPEN
;
3515 mutex_unlock(&edev
->qede_lock
);
3517 /* Program un-configured VLANs */
3518 qede_configure_vlan_filters(edev
);
3520 /* Ask for link-up using current configuration */
3521 memset(&link_params
, 0, sizeof(link_params
));
3522 link_params
.link_up
= true;
3523 edev
->ops
->common
->set_link(edev
->cdev
, &link_params
);
3525 /* Query whether link is already-up */
3526 memset(&link_output
, 0, sizeof(link_output
));
3527 edev
->ops
->common
->get_link(edev
->cdev
, &link_output
);
3528 qede_link_update(edev
, &link_output
);
3530 DP_INFO(edev
, "Ending successfully qede load\n");
3535 qede_sync_free_irqs(edev
);
3536 memset(&edev
->int_info
.msix_cnt
, 0, sizeof(struct qed_int_info
));
3538 qede_napi_disable_remove(edev
);
3540 qede_free_mem_load(edev
);
3542 edev
->ops
->common
->set_fp_int(edev
->cdev
, 0);
3543 qede_free_fp_array(edev
);
3549 void qede_reload(struct qede_dev
*edev
,
3550 void (*func
)(struct qede_dev
*, union qede_reload_args
*),
3551 union qede_reload_args
*args
)
3553 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3554 /* Call function handler to update parameters
3555 * needed for function load.
3560 qede_load(edev
, QEDE_LOAD_NORMAL
);
3562 mutex_lock(&edev
->qede_lock
);
3563 qede_config_rx_mode(edev
->ndev
);
3564 mutex_unlock(&edev
->qede_lock
);
3567 /* called with rtnl_lock */
3568 static int qede_open(struct net_device
*ndev
)
3570 struct qede_dev
*edev
= netdev_priv(ndev
);
3573 netif_carrier_off(ndev
);
3575 edev
->ops
->common
->set_power_state(edev
->cdev
, PCI_D0
);
3577 rc
= qede_load(edev
, QEDE_LOAD_NORMAL
);
3582 #ifdef CONFIG_QEDE_VXLAN
3583 vxlan_get_rx_port(ndev
);
3585 #ifdef CONFIG_QEDE_GENEVE
3586 geneve_get_rx_port(ndev
);
3591 static int qede_close(struct net_device
*ndev
)
3593 struct qede_dev
*edev
= netdev_priv(ndev
);
3595 qede_unload(edev
, QEDE_UNLOAD_NORMAL
);
3600 static void qede_link_update(void *dev
, struct qed_link_output
*link
)
3602 struct qede_dev
*edev
= dev
;
3604 if (!netif_running(edev
->ndev
)) {
3605 DP_VERBOSE(edev
, NETIF_MSG_LINK
, "Interface is not running\n");
3609 if (link
->link_up
) {
3610 if (!netif_carrier_ok(edev
->ndev
)) {
3611 DP_NOTICE(edev
, "Link is up\n");
3612 netif_tx_start_all_queues(edev
->ndev
);
3613 netif_carrier_on(edev
->ndev
);
3616 if (netif_carrier_ok(edev
->ndev
)) {
3617 DP_NOTICE(edev
, "Link is down\n");
3618 netif_tx_disable(edev
->ndev
);
3619 netif_carrier_off(edev
->ndev
);
3624 static int qede_set_mac_addr(struct net_device
*ndev
, void *p
)
3626 struct qede_dev
*edev
= netdev_priv(ndev
);
3627 struct sockaddr
*addr
= p
;
3630 ASSERT_RTNL(); /* @@@TBD To be removed */
3632 DP_INFO(edev
, "Set_mac_addr called\n");
3634 if (!is_valid_ether_addr(addr
->sa_data
)) {
3635 DP_NOTICE(edev
, "The MAC address is not valid\n");
3639 if (!edev
->ops
->check_mac(edev
->cdev
, addr
->sa_data
)) {
3640 DP_NOTICE(edev
, "qed prevents setting MAC\n");
3644 ether_addr_copy(ndev
->dev_addr
, addr
->sa_data
);
3646 if (!netif_running(ndev
)) {
3647 DP_NOTICE(edev
, "The device is currently down\n");
3651 /* Remove the previous primary mac */
3652 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3657 /* Add MAC filter according to the new unicast HW MAC address */
3658 ether_addr_copy(edev
->primary_mac
, ndev
->dev_addr
);
3659 return qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3664 qede_configure_mcast_filtering(struct net_device
*ndev
,
3665 enum qed_filter_rx_mode_type
*accept_flags
)
3667 struct qede_dev
*edev
= netdev_priv(ndev
);
3668 unsigned char *mc_macs
, *temp
;
3669 struct netdev_hw_addr
*ha
;
3670 int rc
= 0, mc_count
;
3673 size
= 64 * ETH_ALEN
;
3675 mc_macs
= kzalloc(size
, GFP_KERNEL
);
3678 "Failed to allocate memory for multicast MACs\n");
3685 /* Remove all previously configured MAC filters */
3686 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_DEL
,
3691 netif_addr_lock_bh(ndev
);
3693 mc_count
= netdev_mc_count(ndev
);
3694 if (mc_count
< 64) {
3695 netdev_for_each_mc_addr(ha
, ndev
) {
3696 ether_addr_copy(temp
, ha
->addr
);
3701 netif_addr_unlock_bh(ndev
);
3703 /* Check for all multicast @@@TBD resource allocation */
3704 if ((ndev
->flags
& IFF_ALLMULTI
) ||
3706 if (*accept_flags
== QED_FILTER_RX_MODE_TYPE_REGULAR
)
3707 *accept_flags
= QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC
;
3709 /* Add all multicast MAC filters */
3710 rc
= qede_set_mcast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_ADD
,
3719 static void qede_set_rx_mode(struct net_device
*ndev
)
3721 struct qede_dev
*edev
= netdev_priv(ndev
);
3723 DP_INFO(edev
, "qede_set_rx_mode called\n");
3725 if (edev
->state
!= QEDE_STATE_OPEN
) {
3727 "qede_set_rx_mode called while interface is down\n");
3729 set_bit(QEDE_SP_RX_MODE
, &edev
->sp_flags
);
3730 schedule_delayed_work(&edev
->sp_task
, 0);
3734 /* Must be called with qede_lock held */
3735 static void qede_config_rx_mode(struct net_device
*ndev
)
3737 enum qed_filter_rx_mode_type accept_flags
= QED_FILTER_TYPE_UCAST
;
3738 struct qede_dev
*edev
= netdev_priv(ndev
);
3739 struct qed_filter_params rx_mode
;
3740 unsigned char *uc_macs
, *temp
;
3741 struct netdev_hw_addr
*ha
;
3745 netif_addr_lock_bh(ndev
);
3747 uc_count
= netdev_uc_count(ndev
);
3748 size
= uc_count
* ETH_ALEN
;
3750 uc_macs
= kzalloc(size
, GFP_ATOMIC
);
3752 DP_NOTICE(edev
, "Failed to allocate memory for unicast MACs\n");
3753 netif_addr_unlock_bh(ndev
);
3758 netdev_for_each_uc_addr(ha
, ndev
) {
3759 ether_addr_copy(temp
, ha
->addr
);
3763 netif_addr_unlock_bh(ndev
);
3765 /* Configure the struct for the Rx mode */
3766 memset(&rx_mode
, 0, sizeof(struct qed_filter_params
));
3767 rx_mode
.type
= QED_FILTER_TYPE_RX_MODE
;
3769 /* Remove all previous unicast secondary macs and multicast macs
3770 * (configrue / leave the primary mac)
3772 rc
= qede_set_ucast_rx_mac(edev
, QED_FILTER_XCAST_TYPE_REPLACE
,
3777 /* Check for promiscuous */
3778 if ((ndev
->flags
& IFF_PROMISC
) ||
3779 (uc_count
> 15)) { /* @@@TBD resource allocation - 1 */
3780 accept_flags
= QED_FILTER_RX_MODE_TYPE_PROMISC
;
3782 /* Add MAC filters according to the unicast secondary macs */
3786 for (i
= 0; i
< uc_count
; i
++) {
3787 rc
= qede_set_ucast_rx_mac(edev
,
3788 QED_FILTER_XCAST_TYPE_ADD
,
3796 rc
= qede_configure_mcast_filtering(ndev
, &accept_flags
);
3801 /* take care of VLAN mode */
3802 if (ndev
->flags
& IFF_PROMISC
) {
3803 qede_config_accept_any_vlan(edev
, true);
3804 } else if (!edev
->non_configured_vlans
) {
3805 /* It's possible that accept_any_vlan mode is set due to a
3806 * previous setting of IFF_PROMISC. If vlan credits are
3807 * sufficient, disable accept_any_vlan.
3809 qede_config_accept_any_vlan(edev
, false);
3812 rx_mode
.filter
.accept_flags
= accept_flags
;
3813 edev
->ops
->filter_config(edev
->cdev
, &rx_mode
);